!1087 feat: README添加内核编码规范指导

Merge pull request !1087 from zhushengle/README
feat: README新增内核编码规范
2022-12-05 12:57:14 +00:00 · 2022-12-01 16:08:38 +08:00 · 2022-11-29 11:43:57 +00:00 · 2022-11-29 17:42:07 +08:00 · 2022-11-29 01:53:25 +00:00 · 2022-11-28 22:24:16 +08:00
492 changed files with 3537 additions and 2709 deletions
--- a/.gitee/PULL_REQUEST_TEMPLATE.zh-CN.md
+++ b/.gitee/PULL_REQUEST_TEMPLATE.zh-CN.md
@@ -10,6 +10,12 @@
 ### 测试用例（新增、改动、可能影响的功能）


+### 是否涉及对外变更（典型的如：对外API规格变更、新增对外接口等等）
+
+必须选择一项（在MarkDown模式下用[x]替换[ ]即可勾选对应选项）:
+- [ ] 是，涉及对外变更: 需要在commit message中按【[模板要求](https://gitee.com/openharmony/kernel_liteos_a/wikis/Commit%20message%20%E8%A7%84%E8%8C%83)】描述变更点
+- [ ] 否，不涉及对外变更
+
 ### 是否需要同步至release（如：3.0LTS ... ）分支？

 必须选择一项（在MarkDown模式下用[x]替换[ ]即可勾选对应选项）:
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -323,7 +323,7 @@ group("liteos_a") {
    deps += [
      ":apps",
      ":tests",
-      "//prebuilts/lite/sysroot/build:strip",
+      "//third_party/musl/scripts/build_lite:strip",
    ]
    if (liteos_skip_make == false) {
      deps += [ ":make" ]
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -0,0 +1,338 @@
+#  (2022-03-30)
+
+
+### Bug Fixes
+
+
+* **arm-virt:** HW_RANDOM_ENABLE配置支持arm virt平台 ([68f9f49](https://gitee.com/openharmony/kernel_liteos_a/commits/68f9f49c2a62d3271db14ccb896c9f9fc78a60e4))
+* A核代码静态告警定期清理 ([9ba725c](https://gitee.com/openharmony/kernel_liteos_a/commits/9ba725c3d486dd28fe9b2489b0f95a65354d7d86)), closes [#I4I0O8](https://gitee.com/openharmony/kernel_liteos_a/issues/I4I0O8)
+* change default permission of procfs to 0550 ([a776c04](https://gitee.com/openharmony/kernel_liteos_a/commits/a776c04a3da414f73ef7136a543c029cc6dd75be)), closes [#I4NY49](https://gitee.com/openharmony/kernel_liteos_a/issues/I4NY49)
+* change the execFile field in TCB to execVnode ([e4a0662](https://gitee.com/openharmony/kernel_liteos_a/commits/e4a06623ceb49b5bead60d45c0534db88b9c666f)), closes [#I4CLL9](https://gitee.com/openharmony/kernel_liteos_a/issues/I4CLL9)
+* close file when process interpretor failed ([a375bf5](https://gitee.com/openharmony/kernel_liteos_a/commits/a375bf5668a5e86e082d0e124b538e423023a259)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* codex 清理 ([9ab3e35](https://gitee.com/openharmony/kernel_liteos_a/commits/9ab3e351d38cdae2ec083048a50a253bc2a3b604)), closes [#I4BL3](https://gitee.com/openharmony/kernel_liteos_a/issues/I4BL3)
+* dyload open close failed ([5e87d8c](https://gitee.com/openharmony/kernel_liteos_a/commits/5e87d8c183471166294e2caa041ab4da8570c6a1)), closes [#I452Z7](https://gitee.com/openharmony/kernel_liteos_a/issues/I452Z7)
+* fix ppoll ([a55f68f](https://gitee.com/openharmony/kernel_liteos_a/commits/a55f68f957e9f8ad74bd9e0c1b3d27775e0f8c75))
+* fix some function declarations ([63fd8bc](https://gitee.com/openharmony/kernel_liteos_a/commits/63fd8bc39b21fffb6990f74e879eefecafad6c88))
+* implicit declaration of function 'syscall' in apps/shell ([bd0c083](https://gitee.com/openharmony/kernel_liteos_a/commits/bd0c0835fc58ed5f941dbbc9adfac74253eeb874))
+* LOS_Panic和魔法键功能中的使用PRINTK打印，依赖任务调度，特殊情况下存在打印不出来的问题 ([53addea](https://gitee.com/openharmony/kernel_liteos_a/commits/53addea304de09e0df457b690403ac652bbcea72)), closes [#I4NOC7](https://gitee.com/openharmony/kernel_liteos_a/issues/I4NOC7)
+* los_stat_pri.h中缺少依赖的头文件 ([2cd03c5](https://gitee.com/openharmony/kernel_liteos_a/commits/2cd03c55b7a614c648adc965ebfe494d491fe20f)), closes [#I4KEZ1](https://gitee.com/openharmony/kernel_liteos_a/issues/I4KEZ1)
+* los_trace.h接口注释错误修正 ([6d24961](https://gitee.com/openharmony/kernel_liteos_a/commits/6d249618aecc216388f9b1a2b48fe0ac6dd19ff2)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* MMU竞态问题修复 ([748e0d8](https://gitee.com/openharmony/kernel_liteos_a/commits/748e0d8ffb6ee9c8757ed056f575e3abc6c10702)), closes [#I2](https://gitee.com/openharmony/kernel_liteos_a/issues/I2)
+* **mtd:** 去除mtd对hisilicon驱动的依赖 ([f7d010d](https://gitee.com/openharmony/kernel_liteos_a/commits/f7d010dfa4cb825096267528e131a9e2735d7505)), closes [#I49](https://gitee.com/openharmony/kernel_liteos_a/issues/I49)
+* OsFutexWaitParamCheck函数中absTime为0时，直接返回，不需要打印 ([3f71be7](https://gitee.com/openharmony/kernel_liteos_a/commits/3f71be75355f11037d9de80cc4d7da0f01905003)), closes [#I4D67](https://gitee.com/openharmony/kernel_liteos_a/issues/I4D67)
+* OsLockDepCheckIn异常处理中存在g_lockdepAvailable锁嵌套调用, ([bf030b6](https://gitee.com/openharmony/kernel_liteos_a/commits/bf030b6bb5843151a5b8b8736246a1376a5fb9d0)), closes [#I457](https://gitee.com/openharmony/kernel_liteos_a/issues/I457)
+* pr模板补充说明 ([e3cd485](https://gitee.com/openharmony/kernel_liteos_a/commits/e3cd485db528490a16a8932d734faab263b44bc9))
+* same file mode for procfs files ([c79bcd0](https://gitee.com/openharmony/kernel_liteos_a/commits/c79bcd028e1be34b45cba000077230fa2ef95e68)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* shell支持exit退出，完善帮助信息，特殊处理不可见字符 ([cc6e112](https://gitee.com/openharmony/kernel_liteos_a/commits/cc6e11281e63b6bdc9be8e5d3c39f1258eb2ceaa))
+* smp初始化中副核冗余的启动框架调用 ([5ce70a5](https://gitee.com/openharmony/kernel_liteos_a/commits/5ce70a50c3733b6ec8cc4b444837e366ec837f69)), closes [#I4F8A5](https://gitee.com/openharmony/kernel_liteos_a/issues/I4F8A5)
+* solve SIGCHLD ignored in sigsuspend() ([5a80d4e](https://gitee.com/openharmony/kernel_liteos_a/commits/5a80d4e1a34c94204a0bb01443bf25a4fdb12750)), closes [#I47](https://gitee.com/openharmony/kernel_liteos_a/issues/I47)
+* syscall review bugfix ([214f44e](https://gitee.com/openharmony/kernel_liteos_a/commits/214f44e935277c29d347c50b553a31ea7df36448)), closes [#149](https://gitee.com/openharmony/kernel_liteos_a/issues/149)
+* **test:** misc09用例因依赖hosts文件而失败 ([f2f5c5f](https://gitee.com/openharmony/kernel_liteos_a/commits/f2f5c5fdc3202610de173e7046adab4df5e59142)), closes [re#I48IZ0](https://gitee.com/re/issues/I48IZ0)
+* **test:** 修复sys部分用例因依赖passwd、group文件而失败 ([614cdcc](https://gitee.com/openharmony/kernel_liteos_a/commits/614cdccf91bd2d220c4c76418b53400ce714c6cb)), closes [re#I48](https://gitee.com/re/issues/I48)
+* 中断中调用PRINTK概率卡死，导致系统不能正常响应中断 ([9726ba1](https://gitee.com/openharmony/kernel_liteos_a/commits/9726ba11a79f3d2d1e616e12ef0bb44e4fc5cd20)), closes [#I4C9](https://gitee.com/openharmony/kernel_liteos_a/issues/I4C9)
+* 临终遗言重定向内容缺失task相关信息，对应的shell命令中申请的内存需要cacheline对齐 ([48ca854](https://gitee.com/openharmony/kernel_liteos_a/commits/48ca854bf07f8dcda9657f950601043a485a1b33)), closes [#I482S5](https://gitee.com/openharmony/kernel_liteos_a/issues/I482S5)
+* 优化liteipc任务状态，删除功能重复字段 ([5004ef4](https://gitee.com/openharmony/kernel_liteos_a/commits/5004ef4d87b54fb6d7f748ca8212ae155bcefac5)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 优化trace buffer初始化，删除swtmr 桩中的无效参数 ([b551270](https://gitee.com/openharmony/kernel_liteos_a/commits/b551270ef50cb206360e2eee3dd20ace5cecccb7)), closes [#I4DQ1](https://gitee.com/openharmony/kernel_liteos_a/issues/I4DQ1)
+* 修复 virpart.c 不适配的格式化打印问题 ([de29140](https://gitee.com/openharmony/kernel_liteos_a/commits/de29140edf2567f4847876cb1ed5e0b6857420f3)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 修复A核文档失效的问题 ([456d255](https://gitee.com/openharmony/kernel_liteos_a/commits/456d255a81c2031be8ebecc2bf897af80c3d3c7a)), closes [#I4U7](https://gitee.com/openharmony/kernel_liteos_a/issues/I4U7)
+* 修复A核测试用例失败的问题 ([59329ce](https://gitee.com/openharmony/kernel_liteos_a/commits/59329ce7c6b6a00084df427748e6283287a773c0)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 修复A核测试用例失败的问题 ([be68dc8](https://gitee.com/openharmony/kernel_liteos_a/commits/be68dc8bcaf8d965039ae1d792775f00a08adfac)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 修复dispatch单词拼写错误。 ([9b07aec](https://gitee.com/openharmony/kernel_liteos_a/commits/9b07aece2dfa3494cf35e8b388410341508d6224)), closes [#I4BLE8](https://gitee.com/openharmony/kernel_liteos_a/issues/I4BLE8)
+* 修复futime提示错误22的BUG ([f2861dd](https://gitee.com/openharmony/kernel_liteos_a/commits/f2861ddfb424af7b99c278273601ce0fab1f37e6))
+* 修复jffs2适配层错误释放锁的BUG ([011a55f](https://gitee.com/openharmony/kernel_liteos_a/commits/011a55ff21d95f969abac60bcff96f4c4d7a326d)), closes [#I4FH9](https://gitee.com/openharmony/kernel_liteos_a/issues/I4FH9)
+* 修复los_vm_scan.c中内部函数OsInactiveListIsLow冗余代码 ([bc32a1e](https://gitee.com/openharmony/kernel_liteos_a/commits/bc32a1ec0fa5d19c6d2672bcf4a01de5e1be3afb)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 修复LOSCFG_FS_FAT_CACHE宏关闭后编译失败的BUG ([63e71fe](https://gitee.com/openharmony/kernel_liteos_a/commits/63e71feca05a8d46a49822c713258738740f0712)), closes [#I3T3N0](https://gitee.com/openharmony/kernel_liteos_a/issues/I3T3N0)
+* 修复OsVmPhysFreeListAdd和OsVmPhysFreeListAddUnsafe函数内容重复 ([6827bd2](https://gitee.com/openharmony/kernel_liteos_a/commits/6827bd2a22b78aa05e20d6460412fc7b2d738929)), closes [#I4FL95](https://gitee.com/openharmony/kernel_liteos_a/issues/I4FL95)
+* 修复PR520缺陷 ([4033891](https://gitee.com/openharmony/kernel_liteos_a/commits/40338918d9132399ee0494d331930a05b7a13c67)), closes [re#I4DEG5](https://gitee.com/re/issues/I4DEG5)
+* 修复shcmd.h需要用宏包起来的问题 ([6c4e4b1](https://gitee.com/openharmony/kernel_liteos_a/commits/6c4e4b16abe9c68fea43d40b2d39b4f0ed4bfc9c)), closes [#I4N50](https://gitee.com/openharmony/kernel_liteos_a/issues/I4N50)
+* 修复xts权限用例压测异常问题 ([b0d31cb](https://gitee.com/openharmony/kernel_liteos_a/commits/b0d31cb43f5a8d1c3da574b2b957e3b0e98b3067)), closes [#I3ZJ1](https://gitee.com/openharmony/kernel_liteos_a/issues/I3ZJ1)
+* 修复硬随机不可用时，地址随机化不可用问题 ([665c152](https://gitee.com/openharmony/kernel_liteos_a/commits/665c152c27bb86395ddd0395279255f6cdaf7255)), closes [#I4D4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4D4)
+* 修复进程用例导致门禁概率失败 ([1ed28b4](https://gitee.com/openharmony/kernel_liteos_a/commits/1ed28b4c80cfd222be08b0c2e71e6287e52bb276)), closes [#I4FO0](https://gitee.com/openharmony/kernel_liteos_a/issues/I4FO0)
+* 修复进程线程不稳定用例 ([f6ac03d](https://gitee.com/openharmony/kernel_liteos_a/commits/f6ac03d3e3c56236adc5734d4c059f1fbcc9e0c1)), closes [#I4F1](https://gitee.com/openharmony/kernel_liteos_a/issues/I4F1)
+* 修复重复执行内存用例导致系统卡死问题 ([6c2b163](https://gitee.com/openharmony/kernel_liteos_a/commits/6c2b163c7d7c696ef89b17a0275f3cddb3d7cefb)), closes [#I4F7](https://gitee.com/openharmony/kernel_liteos_a/issues/I4F7)
+* 修改MMU模块的注释错误 ([1a8e22d](https://gitee.com/openharmony/kernel_liteos_a/commits/1a8e22dcf15944153e013d004fd7bbf24557a8c7)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 共享内存问题修复 ([9fdb80f](https://gitee.com/openharmony/kernel_liteos_a/commits/9fdb80f85f92d0167a0456455a94fc6f679797ce)), closes [#I47X2](https://gitee.com/openharmony/kernel_liteos_a/issues/I47X2)
+* 内核ERR打印，无进程和线程信息，不方便问题定位。 ([cb423f8](https://gitee.com/openharmony/kernel_liteos_a/commits/cb423f845462b8cc474c3cba261dadf3943a08ef)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 内核ERR级别及以上的打印输出当前进程和线程名 ([540b201](https://gitee.com/openharmony/kernel_liteos_a/commits/540b2017c5460e300365d2039a08abd5945cec6b))
+* 内源检视测试用例问题修复 ([a6ac759](https://gitee.com/openharmony/kernel_liteos_a/commits/a6ac7597f85043ba6de3a1b395ca676d85c65ea7))
+* 删除冗余的头文件 ([8e614bb](https://gitee.com/openharmony/kernel_liteos_a/commits/8e614bb1616b75bc89eee7ad7da49b7a9c285b47)), closes [#I4KN63](https://gitee.com/openharmony/kernel_liteos_a/issues/I4KN63)
+* 增加pselect SYSCALL函数及测试用例 ([f601c16](https://gitee.com/openharmony/kernel_liteos_a/commits/f601c16b9e67d531dda51fc18389a53db4360b7b)), closes [#I45](https://gitee.com/openharmony/kernel_liteos_a/issues/I45)
+* 增加内核epoll系统调用 ([2251b8a](https://gitee.com/openharmony/kernel_liteos_a/commits/2251b8a2d1f649422dd67f8551b085a7e0c63ec7)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 实现了musl库net模块中的一些函数接口和相应的测试用例 ([3d00a7d](https://gitee.com/openharmony/kernel_liteos_a/commits/3d00a7d23a96f29c138cfc1672825b90b9e0c05e)), closes [#I4JQI1](https://gitee.com/openharmony/kernel_liteos_a/issues/I4JQI1)
+* 添加进程线程冒烟用例 ([2be5968](https://gitee.com/openharmony/kernel_liteos_a/commits/2be59680f2fb0801b43522cd38cc387c8ff38766)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 用户态进程主线程退出时，其他子线程刚好进入异常处理流程会导致系统卡死 ([d955790](https://gitee.com/openharmony/kernel_liteos_a/commits/d955790a44a679421798ec1ac2900b4d75dd75a4)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 编码规范修改 ([d161a0b](https://gitee.com/openharmony/kernel_liteos_a/commits/d161a0b03de046c05fff45a2b625631b4e45a347))
+* 编码规范问题修复 ([f60bc94](https://gitee.com/openharmony/kernel_liteos_a/commits/f60bc94cf231bc615ff6603ca0393b8fe33a8c47))
+* 编译框架在做编译入口的统一 ([bdb9864](https://gitee.com/openharmony/kernel_liteos_a/commits/bdb9864436a6f128a4c3891bbd63e3c60352689f)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 解决dmesg -s参数double lock问题 ([e151256](https://gitee.com/openharmony/kernel_liteos_a/commits/e1512566e322eb1fbc8f5d5997f9bfcd022feac7)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 进程退出前自己回收vmspace中的所有region ([298ccea](https://gitee.com/openharmony/kernel_liteos_a/commits/298ccea3fedaccc651b38973f0455fa1ce12e516)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 通过g_uart_fputc_en关闭打印后，shell进程不能正常启动 ([d21b05c](https://gitee.com/openharmony/kernel_liteos_a/commits/d21b05c0f69877130366ad37b852a0f30c11809d)), closes [#I4CTY2](https://gitee.com/openharmony/kernel_liteos_a/issues/I4CTY2)
+* 针对pr是否同步至release分支，增加原因说明规则 ([b37a7b7](https://gitee.com/openharmony/kernel_liteos_a/commits/b37a7b79292d93dae6c4914952b5f3bb509e8721))
+* 非当前进程销毁时，销毁liteipc时错误的销毁了当前进程的liteipc资源 ([0f0e85b](https://gitee.com/openharmony/kernel_liteos_a/commits/0f0e85b7a6bf76d540925fbf661c483c8dba1cba)), closes [#I4FSA7](https://gitee.com/openharmony/kernel_liteos_a/issues/I4FSA7)
+
+
+### Code Refactoring
+
+* los_cir_buf.c中接口整合 ([0d325c5](https://gitee.com/openharmony/kernel_liteos_a/commits/0d325c56a1053043db05d53a6c8083f4d35f116b)), closes [#I4MC13](https://gitee.com/openharmony/kernel_liteos_a/issues/I4MC13)
+
+
+### Features
+
+
+* add option SIOCGIFBRDADDR for ioctl ([4ecc473](https://gitee.com/openharmony/kernel_liteos_a/commits/4ecc473843207d259613d26b8ee176d75e7f00fd)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* add sync() to vfs ([f67c4da](https://gitee.com/openharmony/kernel_liteos_a/commits/f67c4dae5141914df2e069dce0196b14780649d8)), closes [#I480](https://gitee.com/openharmony/kernel_liteos_a/issues/I480)
+* **build:** support gcc toolchain ([6e886d4](https://gitee.com/openharmony/kernel_liteos_a/commits/6e886d4233dec3b82a27642f174b920e5f98f6aa))
+* L0-L1 支持Perf ([6e0a3f1](https://gitee.com/openharmony/kernel_liteos_a/commits/6e0a3f10bbbfe29d110c050da927684b6d77b961)), closes [#I47I9](https://gitee.com/openharmony/kernel_liteos_a/issues/I47I9)
+* L0~L1 支持Lms ([e748fdb](https://gitee.com/openharmony/kernel_liteos_a/commits/e748fdbe578a1ddd8eb10b2e207042676231ba26)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* liteipc 静态内存优化 ([5237924](https://gitee.com/openharmony/kernel_liteos_a/commits/52379242c109e0cf442784dbe811ff9d42d5f33a)), closes [#I4G4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4G4)
+* page cache backed by vnode instead of filep ([38a6b80](https://gitee.com/openharmony/kernel_liteos_a/commits/38a6b804e9291d2fdbd189825ebd7d56165ec51c)), closes [#I44](https://gitee.com/openharmony/kernel_liteos_a/issues/I44)
+* 提供低功耗默认处理框架 ([212d1bd](https://gitee.com/openharmony/kernel_liteos_a/commits/212d1bd1e806530fe7e7a16ea986cb2c6fb084ed)), closes [#I4KBG9](https://gitee.com/openharmony/kernel_liteos_a/issues/I4KBG9)
+* 支持AT_RANDOM以增强用户态栈保护能力 ([06ea037](https://gitee.com/openharmony/kernel_liteos_a/commits/06ea03715f0cfb8728fadd0d9c19a403dc8f6028)), closes [#I4CB8](https://gitee.com/openharmony/kernel_liteos_a/issues/I4CB8)
+* 支持L1 低功耗框架 ([64e49ab](https://gitee.com/openharmony/kernel_liteos_a/commits/64e49aba7c9c7d2280c5b3f29f04b17b63209855)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 支持LOS_TaskJoin 和 LOS_TaskDetach ([37bc11f](https://gitee.com/openharmony/kernel_liteos_a/commits/37bc11fa8837a3019a0a56702f401ec1845f6547)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 新增解析异常和backtrace信息脚本 ([7019fdf](https://gitee.com/openharmony/kernel_liteos_a/commits/7019fdfcbb33c660e8aa9fd399d5fccbd7e23b49)), closes [#I47](https://gitee.com/openharmony/kernel_liteos_a/issues/I47)
+* 调度tick响应时间计算优化 ([f47da44](https://gitee.com/openharmony/kernel_liteos_a/commits/f47da44b39be7fa3e9b5031d7b79b9bef1fd4fbc))
+* 调度去进程化，优化进程线程依赖关系 ([dc479fb](https://gitee.com/openharmony/kernel_liteos_a/commits/dc479fb7bd9cb8441e4e47d44b42110ea07d76a2))
+* 调度相关模块间依赖优化 ([0e3936c](https://gitee.com/openharmony/kernel_liteos_a/commits/0e3936c4f8b8bcfc48d283a6d53413e0fc0619b3)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 进程cpup占用率结构优化为动态分配 ([f06e090](https://gitee.com/openharmony/kernel_liteos_a/commits/f06e090a1085a654fd726fbc3c3a1c2bc703d663)), closes [#I4](https://gitee.com/openharmony/kernel_liteos_a/issues/I4)
+* 进程rlimit修改为动态分配,减少静态内存占用 ([cf8446c](https://gitee.com/openharmony/kernel_liteos_a/commits/cf8446c94112ed6993a2e6e71e793d83a72689d5)), closes [#I4EZY5](https://gitee.com/openharmony/kernel_liteos_a/issues/I4EZY5)
+
+### BREAKING CHANGES
+
+* 1. 删除 LOS_CirBufLock()，LOS_CirBufUnlock()内核对外接口
+2. LOS_CirBufWrite()，LOS_CirBufRead()由原先内部不进行上/解锁操作，变为默认已包含上/解锁操作。
+* 新增支持API:
+
+LOS_LmsCheckPoolAdd使能检测指定内存池
+LOS_LmsCheckPoolDel不检测指定内存池
+LOS_LmsAddrProtect为指定内存段上锁，不允许访问
+LOS_LmsAddrDisableProtect去能指定内存段的访问保护
+* 1.新增一系列perf的对外API，位于los_perf.h中.
+    LOS_PerfInit配置采样数据缓冲区
+    LOS_PerfStart开启Perf采样
+    LOS_PerfStop停止Perf采样
+    LOS_PerfConfig配置Perf采样事件
+    LOS_PerfDataRead读取采样数据
+    LOS_PerfNotifyHookReg 注册采样数据缓冲区的钩子函数
+    LOS_PerfFlushHookReg 注册缓冲区刷cache的钩子
+
+2. 用户态新增perf命令
+【Usage】:
+./perf [start] /[start id] Start perf.
+./perf [stop] Stop perf.
+./perf [read nBytes] Read nBytes raw data from perf buffer and print out.
+./perf [list] List events to be used in -e.
+./perf [stat] or [record] <option> <command>
+         -e, event selector. use './perf list' to list available events.
+         -p, event period.
+         -o, perf data output filename.
+         -t, taskId filter(whiltelist), if not set perf will sample all tasks.
+         -s, type of data to sample defined in PerfSampleType los_perf.h.
+         -P, processId filter(whiltelist), if not set perf will sample all processes.
+         -d, whether to prescaler (once every 64 counts), which only take effect on cpu cycle hardware event.
+
+
+#  (2021-09-30)
+
+
+### Bug Fixes
+
+*  A核代码告警清零 ([698756d](https://gitee.com/openharmony/kernel_liteos_a/commits/698756d1e6dfb11b9f874c02ce6a1496646f2c27)), closes [#I4378](https://gitee.com/openharmony/kernel_liteos_a/issues/I4378)
+*  A核告警消除 ([d16bfd0](https://gitee.com/openharmony/kernel_liteos_a/commits/d16bfd005a6dae78df2df3ad55cf21e0716dfae9)), closes [#I46KF6](https://gitee.com/openharmony/kernel_liteos_a/issues/I46KF6)
+* 3518平台, 异常测试进程无法正常退出 ([23937a2](https://gitee.com/openharmony/kernel_liteos_a/commits/23937a239f50d1487e89f3184e4f4b933d6842c6)), closes [#I3V8R5](https://gitee.com/openharmony/kernel_liteos_a/issues/I3V8R5)
+* add (void) to GetFileMappingList method ([56b8eca](https://gitee.com/openharmony/kernel_liteos_a/commits/56b8ecaf171671c0fe97f1dd1f191bebb7812a51)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* add capability and amend smoke testcase ([c9d69e2](https://gitee.com/openharmony/kernel_liteos_a/commits/c9d69e2d1bde57c67068cc36f6a79327d5db5daf))
+* add fchdir api ([e828cbd](https://gitee.com/openharmony/kernel_liteos_a/commits/e828cbdeac7d60bfd6ed98c75a9958ee8ec7b672))
+* add fchmod api ([2f214bf](https://gitee.com/openharmony/kernel_liteos_a/commits/2f214bf4de6c31875c77e84b1763e96bc5ceb669))
+* add fststfs api and unitest ([4c57aa2](https://gitee.com/openharmony/kernel_liteos_a/commits/4c57aa26ad3644ce2429effc8e8fe7fd3c52ebc2))
+* add product_path parameter for driver build ([88fe4eb](https://gitee.com/openharmony/kernel_liteos_a/commits/88fe4eb3e1eafa6d1e32c7b96579a07f5a8c6e35)), closes [#I3PQ10](https://gitee.com/openharmony/kernel_liteos_a/issues/I3PQ10)
+* add syscall for ppoll & add 2 testcases ([defedb6](https://gitee.com/openharmony/kernel_liteos_a/commits/defedb6fdf0806da4a39e22408544cdfb405f2ff))
+* avoid compile warning ignored ([eca711b](https://gitee.com/openharmony/kernel_liteos_a/commits/eca711bb64a7c806ae34c8483cac73fe22b0104f)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* A核codex修改 ([ec977a1](https://gitee.com/openharmony/kernel_liteos_a/commits/ec977a1c7e9ba4ea6621ceb1d0d10e586148208d)), closes [#I40B1](https://gitee.com/openharmony/kernel_liteos_a/issues/I40B1)
+* BBOX使用预留物理内存缓存故障日志 ([2ad176e](https://gitee.com/openharmony/kernel_liteos_a/commits/2ad176e587d5ed7106831a25d386a88e26192e2b)), closes [#I41](https://gitee.com/openharmony/kernel_liteos_a/issues/I41)
+* bootargs解析与rootfs挂载解耦，并支持自定义bootargs参数 ([80473f0](https://gitee.com/openharmony/kernel_liteos_a/commits/80473f0975fe6fd4c4eae3a8a473674ad2dd1293)), closes [#I41CL8](https://gitee.com/openharmony/kernel_liteos_a/issues/I41CL8)
+* **build:** clang10.0.1支持lto，去掉冗余判断 ([73223ae](https://gitee.com/openharmony/kernel_liteos_a/commits/73223ae7e652b7cd9f1e1848c32b2b2573d07b2a))
+* **build:** fix rootfsdir.sh target directory not exist ([21bf2b8](https://gitee.com/openharmony/kernel_liteos_a/commits/21bf2b889931787fb18ca7ea238291fd57e76d51)), closes [#I3NHQ0](https://gitee.com/openharmony/kernel_liteos_a/issues/I3NHQ0)
+* **build:** 去除冗余单板相关的宏配置 ([471de36](https://gitee.com/openharmony/kernel_liteos_a/commits/471de3663ea8b63f7448162edc0293b8723dcefc))
+* clang10 lld could not recognized Oz ([87a0006](https://gitee.com/openharmony/kernel_liteos_a/commits/87a0006d5e1976fdf5efe4be383921610eb04ec6))
+* clang相关编译选项隔离 ([77dcef4](https://gitee.com/openharmony/kernel_liteos_a/commits/77dcef4bc0c92d0141f7a3be0addd4d5cb533b0b)), closes [#I444](https://gitee.com/openharmony/kernel_liteos_a/issues/I444)
+* codex ([101a55d](https://gitee.com/openharmony/kernel_liteos_a/commits/101a55d1199530d621f809976f0024aa8295cce8))
+* codex clean ([b5370af](https://gitee.com/openharmony/kernel_liteos_a/commits/b5370af822c8e81ed2248ac8aa3bb479a0db9dae)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* compile error when fatfs disabled ([fd3f407](https://gitee.com/openharmony/kernel_liteos_a/commits/fd3f4072b5c3dff710013ccdaddf114b0e13f435))
+* console compile bug fix ([f8441a0](https://gitee.com/openharmony/kernel_liteos_a/commits/f8441a0cdea301449416b0c0477dc48a05b6ab4e))
+* correct spelling ([c66fe03](https://gitee.com/openharmony/kernel_liteos_a/commits/c66fe0313f76ba41992b4864c93cf82934378ad3))
+* Correctly handle the return value of LOS_EventRead in QuickstartListen. ([0e0ab81](https://gitee.com/openharmony/kernel_liteos_a/commits/0e0ab81ff9474cffd5e60a8ee741840eac5d737b)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* Ctrl-C move out of LOS_MAGIC_KEY_ENABLE ([40f239a](https://gitee.com/openharmony/kernel_liteos_a/commits/40f239a7d4673dc740c853b1011b5072e48385b7))
+* Delete useless 'exc interaction' macros and function declarations. ([d2f2679](https://gitee.com/openharmony/kernel_liteos_a/commits/d2f26790716c9f76589c4a7d6fa5518f9ccd743c)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* dereference NULL point bug fix ([deaa564](https://gitee.com/openharmony/kernel_liteos_a/commits/deaa564a66b83c9fe19a37b8a061ec9064ece354))
+* do not build toybox temporarily ([044f2c7](https://gitee.com/openharmony/kernel_liteos_a/commits/044f2c7c17c68e10aeccc3af0c222cfc722d194c))
+* do not override existing libs ([8118408](https://gitee.com/openharmony/kernel_liteos_a/commits/8118408123e75f7f5a4ab9101e388be6bba0dcda))
+* **doc:** 修复README_zh-HK.md的链接错误 ([f1b4c87](https://gitee.com/openharmony/kernel_liteos_a/commits/f1b4c87bc44650348504bc00b3f6f94491c341a0))
+* fatfs memory leak ([fbfd71d](https://gitee.com/openharmony/kernel_liteos_a/commits/fbfd71dfe3b5555ef09e542d96a630dfba636daa))
+* fix function name OsSchedSetIdleTaskSchedParam ([8f8c038](https://gitee.com/openharmony/kernel_liteos_a/commits/8f8c038b217d5ba2518413bfc1ba857587d47442))
+* Fix kernel page fault exception handling causing system exception. ([a89fb57](https://gitee.com/openharmony/kernel_liteos_a/commits/a89fb57f5795236b93fd19ee2d7a059cae1b2b1b)), closes [#I3RAN4](https://gitee.com/openharmony/kernel_liteos_a/issues/I3RAN4)
+* fix length typo ([12d98b1](https://gitee.com/openharmony/kernel_liteos_a/commits/12d98b144b70e726d3fd31ddc9d17ed855d0ec1b))
+* fix mq function by enable mq_notify api ([4427142](https://gitee.com/openharmony/kernel_liteos_a/commits/4427142d734df8f95f4599093392904abacc5c93))
+* Fix quickstart codingstyle ([2e011b6](https://gitee.com/openharmony/kernel_liteos_a/commits/2e011b672f6b96ea7e0db066a07e3f9fb6ba5df3)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* fix stored typo ([d25560f](https://gitee.com/openharmony/kernel_liteos_a/commits/d25560f8ac3216670d198cbbb25891c394e0b3c2))
+* fix syscall faccessat,fstatfs,fstatat & add 6 testcases ([aa1cd24](https://gitee.com/openharmony/kernel_liteos_a/commits/aa1cd245a5711e5b53c328b688da5ddc2e783d5f))
+* fix the inappropriate errno in FatFs ([af61187](https://gitee.com/openharmony/kernel_liteos_a/commits/af61187587411dca38ff62e720451f08f19c1c82)), closes [#I3O8](https://gitee.com/openharmony/kernel_liteos_a/issues/I3O8)
+* fix typo in quickstart ([3b2ff4b](https://gitee.com/openharmony/kernel_liteos_a/commits/3b2ff4b71fc5ae1dc74180c33fd66f69da0059d1)), closes [#I3M1S8](https://gitee.com/openharmony/kernel_liteos_a/issues/I3M1S8)
+* Fix wrong judgment in los_trace.c to avoid null pointer access. ([4d863e9](https://gitee.com/openharmony/kernel_liteos_a/commits/4d863e985b6372f7895db57b602b662dba5cadd0)), closes [#I3RT9](https://gitee.com/openharmony/kernel_liteos_a/issues/I3RT9)
+* Identical condition 'ret<0', second condition is always false. :bug: ([1348809](https://gitee.com/openharmony/kernel_liteos_a/commits/1348809807548dd481286a55a6677a9169fcd705))
+* init进程收到子进程退出信号后，调用fork重新拉起进程，会导致系统卡死 ([35a2f3a](https://gitee.com/openharmony/kernel_liteos_a/commits/35a2f3af33a5dba1e0ba36587efced8fead97223)), closes [#I41](https://gitee.com/openharmony/kernel_liteos_a/issues/I41)
+* kernel crashed after rmdir the umounted folder ([ac0d083](https://gitee.com/openharmony/kernel_liteos_a/commits/ac0d083b1c89c4ad3fdaab0347d11f174d0185cb))
+* kernel crashed when delete a umounted folder ([f305d1f](https://gitee.com/openharmony/kernel_liteos_a/commits/f305d1f702a770010125a0f4f0152ffefeeec5c4))
+* kernel crashed when delete a umounted folder ([c6e9212](https://gitee.com/openharmony/kernel_liteos_a/commits/c6e921241b1cf26bcbfeea44e20f6b596512e259))
+* **kernel_test:** 内核mem/shm冒烟用例重复运行失败 ([0676578](https://gitee.com/openharmony/kernel_liteos_a/commits/0676578aae09c101d79e7a276823e849df293e29)), closes [#I3TH4](https://gitee.com/openharmony/kernel_liteos_a/issues/I3TH4)
+* L1 toybox 命令功能实现 ([2ff44c4](https://gitee.com/openharmony/kernel_liteos_a/commits/2ff44c4938d2e66ce60e9497c505eb6e97efc8c2)), closes [#I41N2](https://gitee.com/openharmony/kernel_liteos_a/issues/I41N2)
+* liteipc max data size too small ([4dc421e](https://gitee.com/openharmony/kernel_liteos_a/commits/4dc421e3decdaae60219d533c4a93dbc9334e35f))
+* LiteOS_A BBOX Codex整改 ([6a5a032](https://gitee.com/openharmony/kernel_liteos_a/commits/6a5a0326d2b18ffacce5d38fb351530973c2f245)), closes [#I43](https://gitee.com/openharmony/kernel_liteos_a/issues/I43)
+* Liteos-a创建的文件夹在Ubuntu中不可见 ([a9fc1e0](https://gitee.com/openharmony/kernel_liteos_a/commits/a9fc1e0e5d3e5eb8a34c568a8d147320a9afebe1)), closes [#I3XMY6](https://gitee.com/openharmony/kernel_liteos_a/issues/I3XMY6)
+* lookup new vnode may cause parent vnode freeing ([902a11d](https://gitee.com/openharmony/kernel_liteos_a/commits/902a11de9a4b08e799820fb87942cb2171b9e095)), closes [#I3MYP4](https://gitee.com/openharmony/kernel_liteos_a/issues/I3MYP4)
+* **mini:** fix compile error in mini liteos_a ([e13cb3b](https://gitee.com/openharmony/kernel_liteos_a/commits/e13cb3bcc4e74d4c49c31d290d686f99a4e81e3f))
+* minimal compile ([ac8c2c6](https://gitee.com/openharmony/kernel_liteos_a/commits/ac8c2c6d5b9ede0e46b48212f0b3447605a613c4))
+* misspell ([08980ea](https://gitee.com/openharmony/kernel_liteos_a/commits/08980eac3c249ec6a6717d8a04fb0be7716053a1))
+* mkdir -p is more robust ([e38f9a9](https://gitee.com/openharmony/kernel_liteos_a/commits/e38f9a98c9d373db8381af707c5996d1fefef64e))
+* mksh compile bug fix ([d8263b1](https://gitee.com/openharmony/kernel_liteos_a/commits/d8263b1e91d76706d52df321ef642c1c8297e8e4)), closes [#I3ZMR7](https://gitee.com/openharmony/kernel_liteos_a/issues/I3ZMR7)
+* modify event API description ([937734b](https://gitee.com/openharmony/kernel_liteos_a/commits/937734b1e9f5fc52e0ac727549bd2e4b4c864e3c))
+* move nuttx head file back ([4c8a86e](https://gitee.com/openharmony/kernel_liteos_a/commits/4c8a86ece7cafa8f74441bacc74c7788c0a1b780)), closes [#I4443](https://gitee.com/openharmony/kernel_liteos_a/issues/I4443)
+* nanosleep 接口的rmtp参数被错误清零 ([9458de9](https://gitee.com/openharmony/kernel_liteos_a/commits/9458de9ac664cd75540c8b638b9a6caf82812fc8)), closes [#I41U0](https://gitee.com/openharmony/kernel_liteos_a/issues/I41U0)
+* no exception information output, when the system is abnormal ([5bf4d1c](https://gitee.com/openharmony/kernel_liteos_a/commits/5bf4d1c7128e6718611bbec23cb4373bcb3bfe55))
+* no exception information output, when the system is abnormal ([28aa777](https://gitee.com/openharmony/kernel_liteos_a/commits/28aa777191e7b41e4f1f346ab79f8688edc59c6d))
+* no exception information output, when the system is abnormal after holding ([0ed8adf](https://gitee.com/openharmony/kernel_liteos_a/commits/0ed8adfe3ae59672e284331d40ef3b9e0bc8e094))
+* Optimiz macro of quickstart cmd ([cb140a4](https://gitee.com/openharmony/kernel_liteos_a/commits/cb140a4442c02dd0b1925cc58deecbf4da36dcea)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* Optimize /dev/quickstart permissions. ([4e24b57](https://gitee.com/openharmony/kernel_liteos_a/commits/4e24b572897c33e1b2723122c0e13d3931096bae)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* Optimize quickstart node implementation ([4abd2e0](https://gitee.com/openharmony/kernel_liteos_a/commits/4abd2e0247b14718bb21756fb446142140d30a88)), closes [#I3R8O8](https://gitee.com/openharmony/kernel_liteos_a/issues/I3R8O8)
+* OsGerCurrSchedTimeCycle 函数存在拼写错误 ([53ced1a](https://gitee.com/openharmony/kernel_liteos_a/commits/53ced1a85edc3d06230225ced3916772f432243f)), closes [#I446](https://gitee.com/openharmony/kernel_liteos_a/issues/I446)
+* OsGetArgsAddr声明所在头文件不正确 ([14bd753](https://gitee.com/openharmony/kernel_liteos_a/commits/14bd753aa8beb49af887c8d0aedaefa446409760)), closes [#I41](https://gitee.com/openharmony/kernel_liteos_a/issues/I41)
+* parent point of vnode found by VfsHashGet should be updated ([f32caa5](https://gitee.com/openharmony/kernel_liteos_a/commits/f32caa52c67eca20d58676be4e0439acbb4c5ac3)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* PathCacheFree try to free name field in struct PathCache ([9f47faf](https://gitee.com/openharmony/kernel_liteos_a/commits/9f47faff732609cf2249f104b94ed55f3ef133bb)), closes [#I3NTH9](https://gitee.com/openharmony/kernel_liteos_a/issues/I3NTH9)
+* PathCacheMemoryDump miscalculate the RAM usage of PathCache ([87da7c7](https://gitee.com/openharmony/kernel_liteos_a/commits/87da7c794c9bc8e311ae5242820fbf8aefd8d558)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* Provide a separate configuration macro for boot environment in RAM. ([e28e06b](https://gitee.com/openharmony/kernel_liteos_a/commits/e28e06b08f5b28091153e584cb9d93014a9f2b10))
+* Provide a separate configuration macro for boot environment in RAM. ([bc67393](https://gitee.com/openharmony/kernel_liteos_a/commits/bc67393a67f714e0a8165b6103e53699c676341c))
+* Provide a separate configuration macro for boot environment in RAM. ([f13b90e](https://gitee.com/openharmony/kernel_liteos_a/commits/f13b90e4308ba3d60683799b9ce62fb3705ac277)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* race condition in liteipc ([7e2aef2](https://gitee.com/openharmony/kernel_liteos_a/commits/7e2aef2480b15f71ee0e089cef4443f578e03dbb)), closes [#I3PW5](https://gitee.com/openharmony/kernel_liteos_a/issues/I3PW5)
+* rebuild mksh depends on rebuild.sh script ([bef4ab9](https://gitee.com/openharmony/kernel_liteos_a/commits/bef4ab9835dec865898c74337dfb7154718b94aa))
+* remove redundant headfile ([73a7777](https://gitee.com/openharmony/kernel_liteos_a/commits/73a777777e1b834192f6bb2c0e8bd03c69765c11)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* Remove redundant invalid codes ([fe05df4](https://gitee.com/openharmony/kernel_liteos_a/commits/fe05df40ae710632adb1bd54fb04ad4a8e0c1429)), closes [#I3R70](https://gitee.com/openharmony/kernel_liteos_a/issues/I3R70)
+* Show conflicting files for git apply or patch -p command ([35f7957](https://gitee.com/openharmony/kernel_liteos_a/commits/35f79579758644cbcac6005f894be21f34f42b99)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* SIOCGIFCONF ioctl malloc size error in kernel ([bfd27e7](https://gitee.com/openharmony/kernel_liteos_a/commits/bfd27e78b259eedbd4c30548e80c9b4d789d26e1)), closes [#I3XEZ3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3XEZ3)
+* smp启动代码解耦及内存映射关系解耦 ([3bb3173](https://gitee.com/openharmony/kernel_liteos_a/commits/3bb3173604dc4dea09301f61da402974185dc112)), closes [#I41P8](https://gitee.com/openharmony/kernel_liteos_a/issues/I41P8)
+* some branch in format does not release the vnode mutex properly ([9b2b700](https://gitee.com/openharmony/kernel_liteos_a/commits/9b2b700fa0e3a8edadb38f09c917a3e3f013347f)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* Sortlink, the response time to insert the node should be inserted into the back of the existing node. ([1323874](https://gitee.com/openharmony/kernel_liteos_a/commits/1323874389030c55fb053fead12ca1c6654d8851)), closes [#I3PSJ8](https://gitee.com/openharmony/kernel_liteos_a/issues/I3PSJ8)
+* statfs can't get f_bfree and f_bavail of a FAT12/FAT16 partition ([9503c4a](https://gitee.com/openharmony/kernel_liteos_a/commits/9503c4a9fc30aaa8ea2031d4fb794436f3c98055)), closes [#I3Q0](https://gitee.com/openharmony/kernel_liteos_a/issues/I3Q0)
+* SysOpenat返回值应该为进程fd，而非系统全局fd。 ([3457c0b](https://gitee.com/openharmony/kernel_liteos_a/commits/3457c0b11debb2cf5d4abe325c2510a750654512)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* the total used vnode number not increased after unlink a file under ([4f514a1](https://gitee.com/openharmony/kernel_liteos_a/commits/4f514a16af5a3f3b9c4ea182de774297afb17f66)), closes [#I3TS1](https://gitee.com/openharmony/kernel_liteos_a/issues/I3TS1)
+* tick 动态化计算优化，消除中断执行时间对系统总体时间的影响，保证软件定时器的响应精度。 ([8df3e8c](https://gitee.com/openharmony/kernel_liteos_a/commits/8df3e8c96515a1907455a9bbc61426f43c803c62)), closes [#I43](https://gitee.com/openharmony/kernel_liteos_a/issues/I43)
+* toybox update ([c3245b3](https://gitee.com/openharmony/kernel_liteos_a/commits/c3245b3ce317eb58c8dad58fdfc7f094b9b9794b))
+* toybox命令升级 ([76f45b3](https://gitee.com/openharmony/kernel_liteos_a/commits/76f45b3fb2783d1cab45a6ba08787c29dfa2c948)), closes [#I41N2](https://gitee.com/openharmony/kernel_liteos_a/issues/I41N2)
+* update LOS_DL_LIST_IS_END comment ([900269b](https://gitee.com/openharmony/kernel_liteos_a/commits/900269bd4645252d898f6d3b73de01d8548c960c))
+* userfs分区的起始地址与大小改为通过bootargs配置 ([2e2b142](https://gitee.com/openharmony/kernel_liteos_a/commits/2e2b14205f4b81c7483ab42d62f144487097e9a4)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* VnodeInUseIter and VnodeFreeAll used to be recursive ([5f6656c](https://gitee.com/openharmony/kernel_liteos_a/commits/5f6656cb36a2ffb0b290aeb53981aba7501e80b2)), closes [#I3NN3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3NN3)
+* 以g_sysSchedStartTime是否为0判断时间轴是否生效存在极限场景导致调度时间不生效 ([67ac8c4](https://gitee.com/openharmony/kernel_liteos_a/commits/67ac8c4c586adc371ece56700fd42371ca7fc885)), closes [#I45HP5](https://gitee.com/openharmony/kernel_liteos_a/issues/I45HP5)
+* 修复FATFS中不同内部接口不支持FAT12/FAT16 FAT表结束标志 ([33f5c70](https://gitee.com/openharmony/kernel_liteos_a/commits/33f5c70e6c8781758d2bfde0f60ca3d6ec7d543f)), closes [#I409R6](https://gitee.com/openharmony/kernel_liteos_a/issues/I409R6)
+* 修复kill进程时，因liteipc阻塞的进程概率无法退出问题 ([7de43bb](https://gitee.com/openharmony/kernel_liteos_a/commits/7de43bb004a12f926550f0b36ca3c2fa610feb27)), closes [#I3XX7](https://gitee.com/openharmony/kernel_liteos_a/issues/I3XX7)
+* 修复MagicKey数组越界访问 ([071cd62](https://gitee.com/openharmony/kernel_liteos_a/commits/071cd6268aeaaef702387dacaf4ef1ffbb7618fc)), closes [#I3U4N9](https://gitee.com/openharmony/kernel_liteos_a/issues/I3U4N9)
+* 修复mprotect修改地址区间的权限后，相应的区间名丢失问题 ([e425187](https://gitee.com/openharmony/kernel_liteos_a/commits/e425187d176a5e09bc5253faefc9cfc8454da0a3)), closes [#I43R40](https://gitee.com/openharmony/kernel_liteos_a/issues/I43R40)
+* 修复mq_close关闭后仍然占用文件描述符的问题 ([590c7b4](https://gitee.com/openharmony/kernel_liteos_a/commits/590c7b4e22662781d05ad035a785e985d573ec33)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* 修复mqueue问题 ([26ee8b8](https://gitee.com/openharmony/kernel_liteos_a/commits/26ee8b836e346e641de4ecd72284f5d377bca6f8)), closes [#I43P4](https://gitee.com/openharmony/kernel_liteos_a/issues/I43P4)
+* 修复sigwait等待到的信号值与获取的siginfo中的值不一致 ([ed7defb](https://gitee.com/openharmony/kernel_liteos_a/commits/ed7defbd439c345a07159d40eb04433afd530004)), closes [#I3M12](https://gitee.com/openharmony/kernel_liteos_a/issues/I3M12)
+* 修复了LOSCFG_FS_FAT_VIRTUAL_PARTITION宏开关错误作用域引起的功能错误 ([acda419](https://gitee.com/openharmony/kernel_liteos_a/commits/acda419a2d773ea890052a16ee66b4872f941fbb)), closes [#I3W1](https://gitee.com/openharmony/kernel_liteos_a/issues/I3W1)
+* 修复了内核的VFAT测试用例 ([a8384b5](https://gitee.com/openharmony/kernel_liteos_a/commits/a8384b5db2274d50a350910d7cfd3fc36b4f4103)), closes [#I3XF3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3XF3)
+* 修复内核access chmod chown接口 ([56a95b9](https://gitee.com/openharmony/kernel_liteos_a/commits/56a95b9ec903f815f9199ac65ca318e00a83b2ed)), closes [#I3Z5L6](https://gitee.com/openharmony/kernel_liteos_a/issues/I3Z5L6)
+* 修复内核c库的makefile中被优化函数替换的高频函数依然参与了编译的问题 ([6f6dc4f](https://gitee.com/openharmony/kernel_liteos_a/commits/6f6dc4f24c8ab05a6d42da46a9fa41d74a477bd7)), closes [#I3XGM8](https://gitee.com/openharmony/kernel_liteos_a/issues/I3XGM8)
+* 修复内核堆完整性检查逻辑中访问非法指针导致系统异常问题。 ([30f5ab8](https://gitee.com/openharmony/kernel_liteos_a/commits/30f5ab89b72d45f596b15af82a8e8e01add7977d)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* 修复启动框架debug模式下-Werror=maybe-uninitialized告警以及符号链接不进镜像的隐患 ([4c02415](https://gitee.com/openharmony/kernel_liteos_a/commits/4c024159a9600745863e49ee955308470a5b657b)), closes [#I3T5](https://gitee.com/openharmony/kernel_liteos_a/issues/I3T5)
+* 修复开机概率挂死 ([2e82c36](https://gitee.com/openharmony/kernel_liteos_a/commits/2e82c361f73b2119613c3571c48faae8ec41d4eb)), closes [#I3SWY2](https://gitee.com/openharmony/kernel_liteos_a/issues/I3SWY2)
+* 修复文档链接失效问题 ([42a3a6c](https://gitee.com/openharmony/kernel_liteos_a/commits/42a3a6c51bfca4ade8ce94084ea2f8eb1c86a137)), closes [#I45297](https://gitee.com/openharmony/kernel_liteos_a/issues/I45297)
+* 修改/proc/mounts显示格式 ([6860246](https://gitee.com/openharmony/kernel_liteos_a/commits/6860246cfaac6f540665e79bbc4c3d54c419b092)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* 修改clock_gettime接口适配posix标准测试用例011输入clk_id错误时返回值ESRCH为EINVAL. ([f8cf6e6](https://gitee.com/openharmony/kernel_liteos_a/commits/f8cf6e6439ee017fe8e0d4ecfc9949c28fa6775f)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* 修改DoNanoSleep 以纳秒为单位 ([6917e08](https://gitee.com/openharmony/kernel_liteos_a/commits/6917e08431689ccbd5a30e9a39b67016ffb64d0a)), closes [#I3Z9](https://gitee.com/openharmony/kernel_liteos_a/issues/I3Z9)
+* 修改某些平台保存bbox日志失败的问题 ([8f6a1dd](https://gitee.com/openharmony/kernel_liteos_a/commits/8f6a1dd33c59164070e8d2fb5abbd3e76ef8ac8e)), closes [#I41](https://gitee.com/openharmony/kernel_liteos_a/issues/I41)
+* 修改默认窗口宽度到400 ([09c491c](https://gitee.com/openharmony/kernel_liteos_a/commits/09c491ca1fd6d3110eafb0d07e45b25bdc3bd5d0)), closes [#I40](https://gitee.com/openharmony/kernel_liteos_a/issues/I40)
+* 关闭jffs和fat后，rootfs配置也被相应关闭，导致nand介质的rootfs不可用。 ([0ea476b](https://gitee.com/openharmony/kernel_liteos_a/commits/0ea476b9741fabd3c255c2770688f587920cf509)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* 内核态在console初始化完成后，使用printf无法正常打印 ([44ce696](https://gitee.com/openharmony/kernel_liteos_a/commits/44ce6969048c2e252f3f9d66fa485c77bdab8ae7)), closes [#I3UG00](https://gitee.com/openharmony/kernel_liteos_a/issues/I3UG00)
+* 去掉冗余的strip操作 ([7819d15](https://gitee.com/openharmony/kernel_liteos_a/commits/7819d15b3619681ae37a1349a6bec2440c829ae9)), closes [#I43767](https://gitee.com/openharmony/kernel_liteos_a/issues/I43767)
+* 合并进程栈两个地址连续的region ([42f374d](https://gitee.com/openharmony/kernel_liteos_a/commits/42f374dd7a353f1c8227e92fa92827c1c7b32424)), closes [#I43](https://gitee.com/openharmony/kernel_liteos_a/issues/I43)
+* 在内核提示No idle TCB时，增加打印当前系统任务信息，以方便问题定位。 ([11a9b00](https://gitee.com/openharmony/kernel_liteos_a/commits/11a9b00d43a6dbe9fba9f6eb07d78a9d226c28f8)), closes [#I434](https://gitee.com/openharmony/kernel_liteos_a/issues/I434)
+* 增加表头，内容以制表符分栏。 ([e9ad6b7](https://gitee.com/openharmony/kernel_liteos_a/commits/e9ad6b71c3b1136414672cd21b339ded7a02dfb9)), closes [#I3W2M9](https://gitee.com/openharmony/kernel_liteos_a/issues/I3W2M9)
+* 将用户态内存调测解析脚本移至tools目录下 ([85b4cb7](https://gitee.com/openharmony/kernel_liteos_a/commits/85b4cb7a67b717984d3ebf68115c7139cc61d690)), closes [#I42T9](https://gitee.com/openharmony/kernel_liteos_a/issues/I42T9)
+* 恢复了FATFS设置卷标的功能 ([9515d53](https://gitee.com/openharmony/kernel_liteos_a/commits/9515d53dccc9a6458bfbaf8e15143928f05cb660)), closes [#I3Y5G8](https://gitee.com/openharmony/kernel_liteos_a/issues/I3Y5G8)
+* 解决kill进程时无法保证进程的已持有的内核资源合理释放. ([cf89f01](https://gitee.com/openharmony/kernel_liteos_a/commits/cf89f016e93f28f8d72e6f5de08640d08a155908)), closes [#I3S0N0](https://gitee.com/openharmony/kernel_liteos_a/issues/I3S0N0)
+* 解决不同环境下计算的rootfs的size偏小，导致mcopy造成的disk full错误 ([c54879b](https://gitee.com/openharmony/kernel_liteos_a/commits/c54879b54875abece53b1f64072cfacbd2e1970e)), closes [#I3IA06](https://gitee.com/openharmony/kernel_liteos_a/issues/I3IA06)
+* 设置qemu默认userfs大小/修改qemu驱动目录 ([1d952a2](https://gitee.com/openharmony/kernel_liteos_a/commits/1d952a254a6e7ec2f70f7112eb27355cfd01ba4d)), closes [#I3XW96](https://gitee.com/openharmony/kernel_liteos_a/issues/I3XW96) [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+
+
+### Features
+
+* active mksh & toybox ([cacb4f0](https://gitee.com/openharmony/kernel_liteos_a/commits/cacb4f0103ecb2d1b7af54d84957f88d3e9443d2)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* Add /dev/quickstart to support synchronous communication between processes in user mode startup. ([46b63f7](https://gitee.com/openharmony/kernel_liteos_a/commits/46b63f71537789743ed2f3f337c1809ee4900d71)), closes [#I3OHO5](https://gitee.com/openharmony/kernel_liteos_a/issues/I3OHO5)
+* add /proc/fd file to dump the pid/fd/path information ([600dded](https://gitee.com/openharmony/kernel_liteos_a/commits/600dded31e80df275ed08c326c0ce3d1857d8dd8)), closes [#I3WB5](https://gitee.com/openharmony/kernel_liteos_a/issues/I3WB5)
+* add /proc/fs_cache to display cache info ([231cb6b](https://gitee.com/openharmony/kernel_liteos_a/commits/231cb6be27380948bc48136ae2e02c28450f47a8)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* add /proc/fs_cache to display cache info ([53c6d96](https://gitee.com/openharmony/kernel_liteos_a/commits/53c6d96c6f97cb006216769f8b73f50fba3bc325)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* add and fix some syscall ([ce849f2](https://gitee.com/openharmony/kernel_liteos_a/commits/ce849f2145e1569517c5244c9ffcaebed53f3a66))
+* add blackbox for liteos_a ([a195aac](https://gitee.com/openharmony/kernel_liteos_a/commits/a195aac9fb60b0163f9eebb29084287d226bd14c)), closes [#I406](https://gitee.com/openharmony/kernel_liteos_a/issues/I406)
+* add blackbox for liteos_a ([425975e](https://gitee.com/openharmony/kernel_liteos_a/commits/425975e4811023e31a520979c20ea2562224d9d0)), closes [#I3NN7](https://gitee.com/openharmony/kernel_liteos_a/issues/I3NN7)
+* add clear cache cmd to /proc/fs_cache ([3d1cf68](https://gitee.com/openharmony/kernel_liteos_a/commits/3d1cf683f37a6f75e9db2ce1f11ec93159b77663)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* add liteos patch ability ([98ca844](https://gitee.com/openharmony/kernel_liteos_a/commits/98ca8441fe75ee1c3318a6a09376fd72f5a51350))
+* add support for gn build system ([a8805a6](https://gitee.com/openharmony/kernel_liteos_a/commits/a8805a65aab9109b915364fccf36c8328f636e48))
+* add uid/gid for ProcFs ([6780659](https://gitee.com/openharmony/kernel_liteos_a/commits/67806596a3c0df9a54893d8c74ebe9da98d7fb06)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* A核proc文件系统在echo模式下新增write的功能 ([f10dd7c](https://gitee.com/openharmony/kernel_liteos_a/commits/f10dd7c135d37a5fb0d78610d5ece5807d01eb1f)), closes [#I3T6](https://gitee.com/openharmony/kernel_liteos_a/issues/I3T6)
+* build OHOS_Image from kernel ([abf4d8f](https://gitee.com/openharmony/kernel_liteos_a/commits/abf4d8fb252631aca9d46211762880a23be2a0b1))
+* **build:** make liteos_config_file available as gn argument ([f9a9077](https://gitee.com/openharmony/kernel_liteos_a/commits/f9a907772f506ca7e2d84e96d4d17cffc7dae50f))
+* **build:** 使用xts -notest选项时，内核用例不参与编译构建和用例编译配置方式调整 ([9bdf716](https://gitee.com/openharmony/kernel_liteos_a/commits/9bdf716407c125c9877b6f49c2133112c18cdabc))
+* don't apply module_swith on configs of config ([f3beb4b](https://gitee.com/openharmony/kernel_liteos_a/commits/f3beb4b273c9a76fbfaffe57302f27d2a74cd2ba))
+* enable gn build for toybox and mksh ([c54bfa1](https://gitee.com/openharmony/kernel_liteos_a/commits/c54bfa16e3907482c252e9738192df869c63326e))
+* fatfs支持符号链接功能 ([e50cf0b](https://gitee.com/openharmony/kernel_liteos_a/commits/e50cf0be6f6d118022b6d79c5177aece574ba150)), closes [#I3V8D1](https://gitee.com/openharmony/kernel_liteos_a/issues/I3V8D1)
+* **file system:** add memory-based romfs ([c4595d2](https://gitee.com/openharmony/kernel_liteos_a/commits/c4595d25042b188570d991a815009764c37f3cb3)), closes [#I3S0](https://gitee.com/openharmony/kernel_liteos_a/issues/I3S0)
+* introduce mksh toybox to rootfs ([41c7689](https://gitee.com/openharmony/kernel_liteos_a/commits/41c7689dfa49c52fb15705ce15ef22a278fbf2ef))
+* L0-L1 支持Trace ([dc9ec68](https://gitee.com/openharmony/kernel_liteos_a/commits/dc9ec6856fe14aa604f037f55f17a3ba2bafb098)), closes [#I46WA0](https://gitee.com/openharmony/kernel_liteos_a/issues/I46WA0)
+* L1支持低功耗投票框架 ([21d8ac8](https://gitee.com/openharmony/kernel_liteos_a/commits/21d8ac8752469f6e0dc2d50d28b75421f665385a)), closes [#I3VS5](https://gitee.com/openharmony/kernel_liteos_a/issues/I3VS5)
+* **libc:** upgrade optimized-routines to v21.02 ([1ec8d5a](https://gitee.com/openharmony/kernel_liteos_a/commits/1ec8d5a454658e95c4acb821d0878f357f4e82ad))
+* **make:** optimize makefiles and remove some unused files ([0e26094](https://gitee.com/openharmony/kernel_liteos_a/commits/0e260949c962158a263d4b0ad45fe9f6843d6e30))
+* Open macro for ADC moudule ([c71ec9d](https://gitee.com/openharmony/kernel_liteos_a/commits/c71ec9d7e8574078a9dc2a8463f3141cca3d625a))
+* **QEMU_ARM_VIRT_CA7:** 使能FAT文件系统编译选项 ([49856dc](https://gitee.com/openharmony/kernel_liteos_a/commits/49856dc1e0de1c5e92346c83eda641dfb1bb16be))
+* support .mkshrc ([51a50c9](https://gitee.com/openharmony/kernel_liteos_a/commits/51a50c95b4cd47b6931523926b728d1c0ff8988b)), closes [#I3Y5](https://gitee.com/openharmony/kernel_liteos_a/issues/I3Y5)
+* support link/symlink/readlink ([6eddc86](https://gitee.com/openharmony/kernel_liteos_a/commits/6eddc869d349be59860bfd84ff10b7579a9b00a9)), closes [#I3Q0](https://gitee.com/openharmony/kernel_liteos_a/issues/I3Q0)
+* support toybox in qemu ([5618319](https://gitee.com/openharmony/kernel_liteos_a/commits/561831928bb1ad1871b2d60d2bba2d67488cea5f)), closes [#I3V17](https://gitee.com/openharmony/kernel_liteos_a/issues/I3V17)
+* timer_create支持以SIGEV_THREAD方式创建定时器 ([e5f6bf0](https://gitee.com/openharmony/kernel_liteos_a/commits/e5f6bf05567c2d193f3746caca502199e7b81e92)), closes [#I3](https://gitee.com/openharmony/kernel_liteos_a/issues/I3)
+* using kconfiglib instead of kconfig ([8784694](https://gitee.com/openharmony/kernel_liteos_a/commits/878469468647a19f704e7ee2af696b0ba8ab775a))
+* vfs support sdcard hotplug ([2db80ec](https://gitee.com/openharmony/kernel_liteos_a/commits/2db80ecb389176b53c77807567895470bb180a06)), closes [#I44WH1](https://gitee.com/openharmony/kernel_liteos_a/issues/I44WH1)
+* **vfs:** vfs支持FD_CLOEXEC标记 ([27dca4d](https://gitee.com/openharmony/kernel_liteos_a/commits/27dca4d857ef8de6b4bb9302e0dd435be7e3284f)), closes [#I3U81](https://gitee.com/openharmony/kernel_liteos_a/issues/I3U81)
+* 删除zpfs冗余代码 ([3393479](https://gitee.com/openharmony/kernel_liteos_a/commits/3393479c52f4a9dfe2394bb32beb4b98fca8e171))
+* 基于汇编实现内核对用户态内存清零的功能 ([9db3407](https://gitee.com/openharmony/kernel_liteos_a/commits/9db3407589bb0b2d4a5772faac3130032bc0b8a9)), closes [#I3XXT0](https://gitee.com/openharmony/kernel_liteos_a/issues/I3XXT0)
+* 增加mount的MS_RDONLY标志的支持 ([8729f6e](https://gitee.com/openharmony/kernel_liteos_a/commits/8729f6ee57ea57bc664d076ff112c8726fedded9)), closes [#I3Z1W6](https://gitee.com/openharmony/kernel_liteos_a/issues/I3Z1W6)
+* 支持killpg和waitid ([dc3cc09](https://gitee.com/openharmony/kernel_liteos_a/commits/dc3cc094a75c6da65d87522930afea06106d3933))
+* 新增toybox reboot命令 ([e567a10](https://gitee.com/openharmony/kernel_liteos_a/commits/e567a10d021c3e0fe02d6911dbe8687255c67ffa)), closes [#I3YQ7](https://gitee.com/openharmony/kernel_liteos_a/issues/I3YQ7)
+* 给开发者提供系统信息导出Hidumper工具。 ([cb17fa5](https://gitee.com/openharmony/kernel_liteos_a/commits/cb17fa50ed28e6e8f59b7d68ede13c759b983311)), closes [#I3NN7](https://gitee.com/openharmony/kernel_liteos_a/issues/I3NN7)
+* 自研shell命令回补 ([7bc68f4](https://gitee.com/openharmony/kernel_liteos_a/commits/7bc68f454ff5fbf415712c9b8479b8c832f68417)), closes [#I44U0](https://gitee.com/openharmony/kernel_liteos_a/issues/I44U0)
+
+
+### Performance Improvements
+
+* assign '-1' to uninitialized variable: ret ([e0a27ba](https://gitee.com/openharmony/kernel_liteos_a/commits/e0a27badde20868cf3a5b4a44305b90af00e4f3f))
+
+
+### Reverts
+
+* Revert "fix: 修改默认窗口宽度到400" ([1878849](https://gitee.com/openharmony/kernel_liteos_a/commits/187884937cd087e39a28c033c41033163d6b4766)), closes [#I42X9](https://gitee.com/openharmony/kernel_liteos_a/issues/I42X9)
+
+
+### BREAKING CHANGES
+
+* 1.新增一系列trace的对外API，位于los_trace.h中.
+        LOS_TRACE_EASY简易插桩
+        LOS_TRACE标准插桩
+        LOS_TraceInit配置Trace缓冲区的地址和大小
+        LOS_TraceStart开启事件记录
+        LOS_TraceStop停止事件记录
+        LOS_TraceRecordDump输出Trace缓冲区数据
+        LOS_TraceRecordGet获取Trace缓冲区的首地址
+        LOS_TraceReset清除Trace缓冲区中的事件
+        LOS_TraceEventMaskSet设置事件掩码，仅记录某些模块的事件
+        LOS_TraceHwiFilterHookReg注册过滤特定中断号事件的钩子函数
+* **vfs:** 执行exec类函数后，进程拥有的文件描述符情况发生变化：修改前，默认关闭所有的进程文件描述符，0，1，2重新打开；修改后，除非文件描述符拥有FD_CLOEXEC标记，否则该描述符不会被关闭。
+
+
+
--- a/5
+++ b/5
@@ -82,9 +82,6 @@ endif
 ifeq ($(LOSCFG_STORAGE_SPINAND), y)
 FSTYPE = yaffs2
 endif
-ifeq ($(LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7), y)
-FSTYPE = jffs2
-endif
 ROOTFS_DIR = $(OUT)/rootfs
 ROOTFS_ZIP = $(OUT)/rootfs.zip

@@ -121,7 +118,7 @@ sysroot:
 	$(HIDE)echo "sysroot:" $(abspath $(SYSROOT_PATH))
 ifeq ($(origin SYSROOT_PATH),file)
 	$(HIDE)mkdir -p $(SYSROOT_PATH)/build && cd $(SYSROOT_PATH)/build && \
-	ln -snf $(LITEOSTOPDIR)/../../prebuilts/lite/sysroot/build/Makefile && \
+	ln -snf $(LITEOSTOPDIR)/../../third_party/musl/scripts/build_lite/Makefile && \
 	$(MAKE) TARGETS=liteos_a_user \
 		ARCH=$(ARCH) \
 		TARGET=$(LOSCFG_LLVM_TARGET) \
--- a/OAT.xml
+++ b/OAT.xml
@@ -23,6 +23,7 @@
        <licensefile></licensefile>
        <policylist>
            <policy name="projectPolicy" desc="">
+                <policyitem type="copyright" name="Huawei Technologies Co., Ltd. All rights reserved." path=".*" desc="original liteos copyright"/>
                <policyitem type="copyright" name="Huawei Device Co., Ltd. All rights reserved." path=".*" desc="original liteos copyright"/>
                <policyitem type="license" name="BSD-3-Clause" path=".*" desc="Liteos kernel use bsd3 license"/>
            </policy>
--- a/README.md
+++ b/README.md
@@ -4,10 +4,10 @@
 -   [Directory Structure](#section161941989596)
 -   [Constraints](#section119744591305)
 -   [Usage](#section741617511812)
-    -   [Preparations](#section1579912573329)
-    -   [Source Code Acquisition](#section11443189655)
-    -   [Compilation and Building](#section2081013992812)
-
+-   [Preparations](#section1579912573329)
+-   [Source Code Acquisition](#section11443189655)
+-   [Compilation and Building](#section2081013992812)
+-   [Contribution](#section1371123476304)
 -   [Repositories Involved](#section1371113476307)

 ## Introduction<a name="section11660541593"></a>
@@ -67,24 +67,33 @@ The OpenHarmony LiteOS Cortex-A is a new-generation kernel developed based on th

 ## Usage<a name="section741617511812"></a>

-OpenHarmony LiteOS Cortex-A supports the  [Hi3516D V300](https://gitee.com/openharmony/docs/blob/master/en/device-dev/quick-start/quickstart-lite-introduction-hi3516.md). You can develop and run your applications based on this development board.
+OpenHarmony LiteOS Cortex-A supports the  [Hi3516D V300](https://gitee.com/openharmony/docs/blob/master/en/device-dev/quick-start/quickstart-appendix-hi3516.md). You can develop and run your applications based on this development board.

 ### Preparations<a name="section1579912573329"></a>

-You need to set up the compilation environment on Linux.
+You need to set up the compilation environment on Ubuntu.

-   [Setting Up Ubuntu Development Environment](https://gitee.com/openharmony/docs/blob/master/en/device-dev/quick-start/quickstart-lite-env-setup.md)
-   For Hi3516D V300, see  [Setting Up the Hi3516 Development Environment](https://gitee.com/openharmony/docs/blob/master/en/device-dev/quick-start/quickstart-lite-steps-hi3516-setting.md).
+-   [Setting Up Ubuntu Development Environment](https://gitee.com/openharmony/docs/blob/master/en/device-dev/quick-start/Readme-EN.md)

 ### Source Code Acquisition<a name="section11443189655"></a>

-Download and decompress a set of source code on a Linux server to acquire the  [source code](https://gitee.com/openharmony/docs/blob/master/en/device-dev/get-code/sourcecode-acquire.md).
+Download and decompress a set of source code on a Ubuntu server to acquire the  [source code](https://gitee.com/openharmony/docs/blob/master/en/device-dev/get-code/sourcecode-acquire.md).

 ### Compilation and Building<a name="section2081013992812"></a>

-For details about how to develop the first application, see:
+For details about how to develop the first application, see: [Developing the First Example Program Running on Hi3516](https://gitee.com/openharmony/docs/blob/master/en/device-dev/quick-start/quickstart-pkg-3516-helloworld.md)

-   [Developing the First Example Program Running on Hi3516](https://gitee.com/openharmony/docs/blob/master/en/device-dev/quick-start/quickstart-lite-steps-hi3516-running.md)
+For compilation, please refer to the [compilation instructions](https://gitee.com/openharmony/docs/blob/master/en/device-dev/quick-start/quickstart-pkg-3516-build.md).
+
+## Contribution<a name="section1371123476304"></a>
+
+[How to involve](https://gitee.com/openharmony/docs/blob/HEAD/en/contribute/contribution.md)
+
+[Commit message spec](https://gitee.com/openharmony/kernel_liteos_a/wikis/Commit%20message%20%E8%A7%84%E8%8C%83)
+
+[C&C++ Secure Coding Guide](https://gitee.com/openharmony/docs/blob/master/en/contribute/OpenHarmony-c-cpp-secure-coding-guide.md)
+
+[LiteOS-A Kernel Coding Style Guide](https://gitee.com/openharmony/kernel_liteos_a/wikis/LiteOS-A%20%E5%86%85%E6%A0%B8%E7%BC%96%E7%A0%81%E8%A7%84%E8%8C%83%E6%8C%87%E5%8D%97)

 ## Repositories Involved<a name="section1371113476307"></a>

--- a/README_zh-HK.md
+++ b/README_zh-HK.md
@@ -4,10 +4,10 @@
 - [目錄](#section161941989596)
 - [約束](#section119744591305)
 - [使用說明](#section741617511812)
-    - [準備](#section1579912573329)
-    - [獲取源碼](#section11443189655)
-    - [編譯構建](#section2081013992812)
-
+- [準備](#section1579912573329)
+- [獲取源碼](#section11443189655)
+- [編譯構建](#section2081013992812)
+- [貢獻](#section1371123476304)
 - [相關倉](#section1371113476307)

 ## 簡介<a name="section11660541593"></a>
@@ -67,24 +67,33 @@ OpenHarmony LiteOS-A內核是基於Huawei LiteOS內核演進發展的新一代

 ## 使用說明<a name="section741617511812"></a>

-OpenHarmony LiteOS-A內核支持Hi3516DV300（[介紹](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/quickstart-lite-introduction-hi3516.md)）單板，開發者可基於此單板開發運行自己的應用程序。
+OpenHarmony LiteOS-A內核支持[Hi3516DV300](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/quickstart-appendix-hi3516.md)單板，開發者可基於此單板開發運行自己的應用程序。

 ### 準備<a name="section1579912573329"></a>

-開發者需要在Linux上搭建編譯環境：
+開發者需要在Ubuntu上搭建編譯環境：

- [編譯環境凖備](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/quickstart-lite-env-setup.md);
- Hi3516DV300單板：參考[環境搭建](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/quickstart-lite-steps-hi3516-setting.md)。
+- [編譯環境凖備](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/Readme-CN.md);

 ### 獲取源碼<a name="section11443189655"></a>

-在Linux服務器上下載並解壓一套源代碼，源碼獲取方式參考[源碼獲取](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/get-code/sourcecode-acquire.md)。
+在Ubuntu服務器上下載並解壓一套源代碼，源碼獲取方式參考[源碼獲取](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/get-code/sourcecode-acquire.md)。

 ### 編譯構建<a name="section2081013992812"></a>

-開發者開發第一個應用程序可參考：
+開發者開發第一個應用程序可參考：[helloworld for Hi3516DV300](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/quickstart-pkg-3516-helloworld.md)。

- [helloworld for Hi3516DV300](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/quickstart-lite-steps-hi3516-running.md)。
+編譯可以參考：[編譯指導](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/quickstart-pkg-3516-build.md)
+
+## 貢獻<a name="section1371123476304"></a>
+
+[如何貢獻](https://gitee.com/openharmony/docs/blob/HEAD/zh-cn/contribute/%E5%8F%82%E4%B8%8E%E8%B4%A1%E7%8C%AE.md)
+
+[Commit message規範](https://gitee.com/openharmony/kernel_liteos_a/wikis/Commit%20message%20%E8%A7%84%E8%8C%83)
+
+[OpenHarmony C&C++ 安全編程指南](https://gitee.com/openharmony/docs/blob/master/zh-cn/contribute/OpenHarmony-c-cpp-secure-coding-guide.md)
+
+[LiteOS-A 內核編碼規範指南](https://gitee.com/openharmony/kernel_liteos_a/wikis/LiteOS-A%20%E5%86%85%E6%A0%B8%E7%BC%96%E7%A0%81%E8%A7%84%E8%8C%83%E6%8C%87%E5%8D%97)

 ## 相關倉<a name="section1371113476307"></a>

--- a/README_zh.md
+++ b/README_zh.md
@@ -4,10 +4,10 @@
 -   [目录](#section161941989596)
 -   [约束](#section119744591305)
 -   [使用说明](#section741617511812)
-    -   [准备](#section1579912573329)
-    -   [获取源码](#section11443189655)
-    -   [编译构建](#section2081013992812)
-
+-   [准备](#section1579912573329)
+-   [获取源码](#section11443189655)
+-   [编译构建](#section2081013992812)
+-   [贡献](#section1371123476304)
 -   [相关仓](#section1371113476307)

 ## 简介<a name="section11660541593"></a>
@@ -69,24 +69,33 @@ OpenHarmony LiteOS-A内核是基于Huawei LiteOS内核演进发展的新一代

 ## 使用说明<a name="section741617511812"></a>

-OpenHarmony LiteOS-A内核支持[Hi3516DV300](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/quickstart-lite-introduction-hi3516.md)单板。开发者可基于此单板开发运行自己的应用程序。
+OpenHarmony LiteOS-A内核支持[Hi3516DV300](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/quickstart-appendix-hi3516.md)单板。开发者可基于此单板开发运行自己的应用程序。

 ### 准备<a name="section1579912573329"></a>

-开发者需要在Linux上搭建编译环境：
+开发者需要在Ubuntu上搭建编译环境：

-   [编译环境准备](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/quickstart-lite-env-setup.md);
-   Hi3516DV300单板：参考[环境搭建](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/quickstart-lite-steps-hi3516-setting.md)。
+-   [编译环境准备](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/Readme-CN.md);

 ### 获取源码<a name="section11443189655"></a>

-在Linux服务器上下载并解压一套源代码，源码获取方式参考[源码获取](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/get-code/sourcecode-acquire.md)。
+在Ubuntu服务器源码获取方式参考: [源码获取](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/get-code/sourcecode-acquire.md)。

 ### 编译构建<a name="section2081013992812"></a>

-如果这是您的首次应用程序开发，可参考：
+如果这是您的首次应用程序开发，可参考：[helloworld for Hi3516DV300](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/quickstart-pkg-3516-helloworld.md)。

-   [helloworld for Hi3516DV300](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/quickstart-lite-steps-hi3516-running.md)。
+编译可以参考：[编译指导](https://gitee.com/openharmony/docs/blob/master/zh-cn/device-dev/quick-start/quickstart-pkg-3516-build.md)
+
+## 贡献<a name="section1371123476304"></a>
+
+[如何贡献](https://gitee.com/openharmony/docs/blob/HEAD/zh-cn/contribute/%E5%8F%82%E4%B8%8E%E8%B4%A1%E7%8C%AE.md)
+
+[Commit message规范](https://gitee.com/openharmony/kernel_liteos_a/wikis/Commit%20message%20%E8%A7%84%E8%8C%83)
+
+[OpenHarmony C&C++ 安全编程指南](https://gitee.com/openharmony/docs/blob/master/zh-cn/contribute/OpenHarmony-c-cpp-secure-coding-guide.md)
+
+[LiteOS-A 内核编码规范指南](https://gitee.com/openharmony/kernel_liteos_a/wikis/LiteOS-A%20%E5%86%85%E6%A0%B8%E7%BC%96%E7%A0%81%E8%A7%84%E8%8C%83%E6%8C%87%E5%8D%97)

 ## 相关仓<a name="section1371113476307"></a>

--- a/apps/lms/src/sample_usr_lms.c
+++ b/apps/lms/src/sample_usr_lms.c
@@ -180,7 +180,8 @@ static void LmsStrcpyTest(void)
        return;
    }
    char *testStr = "bbbbbbbbbbbbbbbbb";
-    printf("[LmsStrcpyTest] strcpy overflow error should be triggered, src string buf size:%d\n", strlen(testStr) + 1);
+    printf("[LmsStrcpyTest] strcpy overflow error should be triggered, src string buf size:%d\n",
+           (int)strlen(testStr) + 1);
    strcpy(buf, testStr);
    free(buf);
    printf("\n-------- LmsStrcpyTest End --------\n");
--- a/apps/mksh/BUILD.gn
+++ b/apps/mksh/BUILD.gn
@@ -42,7 +42,7 @@ copy("copy_mksh_src") {

 build_ext_component("build_mksh") {
  deps = [ ":copy_mksh_src" ]
-  deps += [ "//prebuilts/lite/sysroot" ]
+  deps += [ "//third_party/musl:sysroot_lite" ]
  exec_path = rebase_path("$target_out_dir/mksh_build")

  cflags = [
--- a/apps/perf/src/main.c
+++ b/apps/perf/src/main.c
@@ -62,7 +62,7 @@ int main(int argc, char **argv)
        PerfStop(fd);
    } else if ((argc == THREE_ARGS) && strcmp(argv[1], "read") == 0) {
        size_t size = strtoul(argv[THREE_ARGS - 1], NULL, 0);
-        if (size <= 0) {
+        if (size == 0) {
            goto EXIT:
        }

--- a/apps/shell/src/main.c
+++ b/apps/shell/src/main.c
@@ -49,7 +49,7 @@ ShellCB *OsGetShellCb()
    return g_shellCB;
 }

-void ShellDeinit(ShellCB *shellCB)
+static void ShellDeinit(ShellCB *shellCB)
 {
    (void)pthread_mutex_destroy(&shellCB->historyMutex);
    (void)pthread_mutex_destroy(&shellCB->keyMutex);
@@ -65,27 +65,23 @@ static int OsShellCreateTask(ShellCB *shellCB)

    ret = sched_getparam(getpid(), &param);
    if (ret != SH_OK) {
-        goto OUT;
+        return ret;
    }

    param.sched_priority = SHELL_PROCESS_PRIORITY_INIT;

    ret = sched_setparam(getpid(), &param);
    if (ret != SH_OK) {
-        goto OUT;
+        return ret;
    }

    ret = ShellTaskInit(shellCB);
    if (ret != SH_OK) {
-        goto OUT;
+        return ret;
    }

    shellCB->shellEntryHandle = pthread_self();
    return 0;
-
-OUT:
-    ShellDeinit(shellCB);
-    return ret;
 }

 static int DoShellExec(char **argv)
@@ -148,7 +144,7 @@ int main(int argc, char **argv)

    shellCB = (ShellCB *)malloc(sizeof(ShellCB));
    if (shellCB == NULL) {
-        goto ERR_OUT1;
+        return SH_NOK;
    }
    ret = memset_s(shellCB, sizeof(ShellCB), 0, sizeof(ShellCB));
    if (ret != SH_OK) {
@@ -176,7 +172,9 @@ int main(int argc, char **argv)
    g_shellCB = shellCB;
    ret = OsShellCreateTask(shellCB);
    if (ret != SH_OK) {
-        goto ERR_OUT3;
+        ShellDeinit(shellCB);
+        g_shellCB = NULL;
+        return ret;
    }

    ShellEntry(shellCB);
--- a/apps/tftp/src/tftpc.c
+++ b/apps/tftp/src/tftpc.c
@@ -1437,10 +1437,8 @@ u32_t lwip_tftp_get_file_by_filename_to_rawmem(u32_t ulHostAddr,
 {
    s32_t iSockNum = TFTP_NULL_INT32;
    u32_t ulSrcStrLen;
-    u32_t lDestStrLen;
    u32_t ulSize;
    u32_t ulRecvSize = TFTP_NULL_UINT32;
-    s32_t iErrCode;
    u32_t ulErrCode;
    u16_t usReadReq;
    u16_t usTempServPort;
--- a/apps/toybox/BUILD.gn
+++ b/apps/toybox/BUILD.gn
@@ -51,7 +51,7 @@ build_ext_component("build_toybox") {
    ":copy_toybox_config",
    ":copy_toybox_src",
  ]
-  deps += [ "//prebuilts/lite/sysroot" ]
+  deps += [ "//third_party/musl:sysroot_lite" ]
  exec_path = rebase_path("$target_out_dir/toybox_build")

  cflags = [
--- a/apps/trace/src/trace.c
+++ b/apps/trace/src/trace.c
@@ -70,7 +70,7 @@ static void TraceRead(int fd, size_t size)
 {
    ssize_t i;
    ssize_t len;
-    if (size <= 0) {
+    if (size == 0) {
        return;
    }

--- a/compat/posix/src/time.c
+++ b/compat/posix/src/time.c
@@ -1,6 +1,6 @@
 /*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -478,7 +478,6 @@ static int PthreadGetCputime(clockid_t clockID, struct timespec *ats)
    uint64_t runtime;
    UINT32 intSave;
    UINT32 tid = GetTidFromClockID(clockID);
-
    if (OS_TID_CHECK_INVALID(tid)) {
        return -EINVAL;
    }
--- a/drivers/block/disk/include/disk_pri.h
+++ b/drivers/block/disk/include/disk_pri.h
@@ -1,6 +1,6 @@
 /*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -42,7 +42,7 @@

 #ifdef __cplusplus
 #if __cplusplus
-extern "C"{
+extern "C" {
 #endif
 #endif /* __cplusplus */

--- a/drivers/block/disk/src/disk.c
+++ b/drivers/block/disk/src/disk.c
@@ -1465,7 +1465,7 @@ INT32 los_disk_init(const CHAR *diskName, const struct block_operations *bops,
    ret = VnodeLookup(diskName, &blkDriver, 0);
    if (ret < 0) {
        VnodeDrop();
-        ret = ENOENT;
+        PRINT_ERR("disk_init : %s, failed to find the vnode, ERRNO=%d\n", diskName, ret);
        goto DISK_FIND_ERROR;
    }
    struct block_operations *bops2 = (struct block_operations *)((struct drv_data *)blkDriver->data)->ops;
--- a/drivers/mtd/multi_partition/BUILD.gn
+++ b/drivers/mtd/multi_partition/BUILD.gn
@@ -39,10 +39,6 @@ kernel_module(module_name) {

  include_dirs = [ "$LITEOSTOPDIR/fs/jffs2/include" ]

-  if (defined(LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7)) {
-    include_dirs += [ "//device/qemu/drivers/cfiflash" ]
-  }
-
  public_configs = [ ":public" ]
 }

--- a/drivers/mtd/multi_partition/Makefile
+++ b/drivers/mtd/multi_partition/Makefile
@@ -36,10 +36,6 @@ LOCAL_SRCS :=  $(wildcard src/*.c)
 LOCAL_INCLUDE := \
    -I $(LITEOSTOPDIR)/fs/jffs2/include

-ifeq ($(LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7), y)
-LOCAL_INCLUDE += -I $(LITEOSTOPDIR)/../../device/qemu/drivers/cfiflash
-endif
-
 LOCAL_FLAGS := $(LOCAL_INCLUDE)

 include $(MODULE)
--- a/drivers/mtd/multi_partition/src/mtd_partition.c
+++ b/drivers/mtd/multi_partition/src/mtd_partition.c
@@ -39,11 +39,6 @@
 #include "fs/driver.h"
 #include "mtd/mtd_legacy_lite.h"

-#ifdef LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7
-#include "cfiflash.h"
-#endif
-
-
 #define DRIVER_NAME_ADD_SIZE    3
 pthread_mutex_t g_mtdPartitionLock = PTHREAD_MUTEX_INITIALIZER;

@@ -134,17 +129,10 @@ static VOID MtdNorParamAssign(partition_param *spinorParam, const struct MtdDev
     * you can change the SPIBLK_NAME or SPICHR_NAME to NULL.
     */
    spinorParam->flash_mtd = (struct MtdDev *)spinorMtd;
-#ifndef LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7
    spinorParam->flash_ops = GetDevSpinorOps();
    spinorParam->char_ops = GetMtdCharFops();
    spinorParam->blockname = SPIBLK_NAME;
    spinorParam->charname = SPICHR_NAME;
-#else
-    spinorParam->flash_ops = GetCfiBlkOps();
-    spinorParam->char_ops = NULL;
-    spinorParam->blockname = CFI_DRIVER;
-    spinorParam->charname = NULL;
-#endif
    spinorParam->partition_head = g_spinorPartitionHead;
    spinorParam->block_size = spinorMtd->eraseSize;
 }
@@ -158,11 +146,7 @@ static VOID MtdDeinitSpinorParam(VOID)

 static partition_param *MtdInitSpinorParam(partition_param *spinorParam)
 {
-#ifndef LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7
    struct MtdDev *spinorMtd = GetMtd("spinor");
-#else
-    struct MtdDev *spinorMtd = GetCfiMtdDev();
-#endif
    if (spinorMtd == NULL) {
        return NULL;
    }
--- a/figures/OpenHarmony-LiteOS-A内核架构图.png
+++ b/figures/OpenHarmony-LiteOS-A内核架构图.png
--- a/figures/architecture-of-the-openharmony-liteos-cortex-a-kernel.png
+++ b/figures/architecture-of-the-openharmony-liteos-cortex-a-kernel.png
--- a/fs/fat/os_adapt/fatfs.c
+++ b/fs/fat/os_adapt/fatfs.c
@@ -1,6 +1,6 @@
 /*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -343,7 +343,8 @@ static FRESULT init_cluster(DIR_FILE *pdfp, DIR *dp_new, FATFS *fs, int type, co
    return FR_OK;
 }

-static int fatfs_create_obj(struct Vnode *parent, const char *name, int mode, struct Vnode **vpp, BYTE type, const char *target)
+static int fatfs_create_obj(struct Vnode *parent, const char *name, int mode, struct Vnode **vpp,
+                            BYTE type,  const char *target)
 {
    struct Vnode *vp = NULL;
    FATFS *fs = (FATFS *)parent->originMount->data;
@@ -1408,7 +1409,7 @@ DWORD fattime_format(time_t time)
    ftime |= ((DWORD)((st.tm_year > YEAR_OFFSET) ? (st.tm_year - YEAR_OFFSET) : 0)) << FTIME_YEAR_OFFSET;
    ftime <<= FTIME_DATE_OFFSET;

-    ftime = (DWORD)st.tm_sec / SEC_MULTIPLIER;
+    ftime |= (DWORD)st.tm_sec / SEC_MULTIPLIER;
    ftime |= ((DWORD)st.tm_min) << FTIME_MIN_OFFSET;
    ftime |= ((DWORD)st.tm_hour) << FTIME_HR_OFFSET;

@@ -2166,7 +2167,7 @@ int fatfs_symlink(struct Vnode *parentVnode, struct Vnode **newVnode, const char
 ssize_t fatfs_readlink(struct Vnode *vnode, char *buffer, size_t bufLen)
 {
    int ret;
-    FRESULT res = FR_OK;
+    FRESULT res;
    DWORD clust;
    QWORD sect;
    DIR_FILE *dfp = (DIR_FILE *)(vnode->data);
--- a/fs/include/fs/fs_operation.h
+++ b/fs/include/fs/fs_operation.h
@@ -1,6 +1,6 @@
 /*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -244,8 +244,9 @@ extern int chattr(const char *pathname, struct IATTR *attr);
 *
 * @retval #0  On success.
 * @retval #-1 On failure with errno set.
- * @retval CONTINE_NUTTX_FCNTL doesn't support some cmds in VfsFcntl, needs to continue going through Nuttx vfs operation.</li>
- *
+ * @retval CONTINE_NUTTX_FCNTL doesn't support some cmds in VfsFcntl, needs to continue going through 
+ * Nuttx vfs operation.</li>
+ *     
 * @par Dependency:
 * <ul><li>fs.h</li></ul>
 * @see None
--- a/fs/include/fs/mount.h
+++ b/fs/include/fs/mount.h
@@ -49,7 +49,7 @@ struct Mount {
    LIST_HEAD vnodeList;               /* list of vnodes */
    int vnodeSize;                     /* size of vnode list */
    LIST_HEAD activeVnodeList;         /* list of active vnodes */
-    int activeVnodeSize;               /* szie of active vnodes list */
+    int activeVnodeSize;               /* size of active vnodes list */
    void *data;                        /* private data */
    uint32_t hashseed;                 /* Random seed for vfshash */
    unsigned long mountFlags;          /* Flags for mount */
--- a/fs/jffs2/jffs2.patch
+++ b/fs/jffs2/jffs2.patch
@@ -2311,7 +2311,7 @@ diff -Nupr old/fs/jffs2/erase.c new/fs/jffs2/erase.c
 diff -Nupr old/fs/jffs2/file.c new/fs/jffs2/file.c
 --- old/fs/jffs2/file.c	2022-05-09 17:22:53.000000000 +0800
 +++ new/fs/jffs2/file.c	2022-05-10 09:43:14.250000000 +0800
-@@ -9,325 +9,34 @@
+@@ -9,335 +9,30 @@
  * For licensing information, see the file 'LICENCE' in this directory.
  *
  */
@@ -2336,32 +2336,35 @@ diff -Nupr old/fs/jffs2/file.c new/fs/jffs2/file.c
 -			loff_t pos, unsigned len, unsigned flags,
 -			struct page **pagep, void **fsdata);
 -static int jffs2_readpage (struct file *filp, struct page *pg);
-
-int jffs2_fsync(struct file *filp, loff_t start, loff_t end, int datasync)
-{
-	struct inode *inode = filp->f_mapping->host;
-	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
-	int ret;
-
-	ret = file_write_and_wait_range(filp, start, end);
-	if (ret)
-		return ret;
- 
-	inode_lock(inode);
-	/* Trigger GC to flush any pending writes for this inode */
-	jffs2_flush_wbuf_gc(c, inode->i_ino);
-	inode_unlock(inode);
 +static unsigned char gc_buffer[PAGE_SIZE];	//avoids malloc when user may be under memory pressure
 
-	return 0;
-}
- 
-const struct file_operations jffs2_file_operations =
+-int jffs2_fsync(struct file *filp, loff_t start, loff_t end, int datasync)
 +unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c,
 +				   struct jffs2_inode_info *f,
 +				   unsigned long offset,
 +				   unsigned long *priv)
 {
+-	struct inode *inode = filp->f_mapping->host;
+-	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
+	/* FIXME: This works only with one file system mounted at a time */
+ 	int ret;
+-
+-	ret = file_write_and_wait_range(filp, start, end);
+	ret = jffs2_read_inode_range(c, f, gc_buffer,
+			 offset & ~(PAGE_SIZE-1), PAGE_SIZE);
+ 	if (ret)
+-		return ret;
+-
+-	inode_lock(inode);
+-	/* Trigger GC to flush any pending writes for this inode */
+-	jffs2_flush_wbuf_gc(c, inode->i_ino);
+-	inode_unlock(inode);
+-
+-	return 0;
+-}
+-
+-const struct file_operations jffs2_file_operations =
+-{
 -	.llseek =	generic_file_llseek,
 -	.open =		generic_file_open,
 - 	.read_iter =	generic_file_read_iter,
@@ -2395,9 +2398,8 @@ diff -Nupr old/fs/jffs2/file.c new/fs/jffs2/file.c
 -	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
 -	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
 -	unsigned char *pg_buf;
-+	/* FIXME: This works only with one file system mounted at a time */
- 	int ret;
- 
+-	int ret;
+-
 -	jffs2_dbg(2, "%s(): ino #%lu, page at offset 0x%lx\n",
 -		  __func__, inode->i_ino, pg->index << PAGE_SHIFT);
 -
@@ -2436,18 +2438,15 @@ diff -Nupr old/fs/jffs2/file.c new/fs/jffs2/file.c
 -{
 -	struct jffs2_inode_info *f = JFFS2_INODE_INFO(pg->mapping->host);
 -	int ret;
-+	ret = jffs2_read_inode_range(c, f, gc_buffer,
-+			 offset & ~(PAGE_SIZE-1), PAGE_SIZE);
-+	if (ret)
-+		return ERR_PTR(ret);
- 
+-
 -	mutex_lock(&f->sem);
 -	ret = jffs2_do_readpage_unlock(pg->mapping->host, pg);
 -	mutex_unlock(&f->sem);
 -	return ret;
+		return ERR_PTR(ret);
 +	return gc_buffer;
 }
-
+ 
 -static int jffs2_write_begin(struct file *filp, struct address_space *mapping,
 -			loff_t pos, unsigned len, unsigned flags,
 -			struct page **pagep, void **fsdata)
@@ -2458,20 +2457,15 @@ diff -Nupr old/fs/jffs2/file.c new/fs/jffs2/file.c
 -	struct page *pg;
 -	struct inode *inode = mapping->host;
 -	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+-	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
 -	pgoff_t index = pos >> PAGE_SHIFT;
 -	uint32_t pageofs = index << PAGE_SHIFT;
 -	int ret = 0;
 -
-	pg = grab_cache_page_write_begin(mapping, index, flags);
-	if (!pg)
-		return -ENOMEM;
-	*pagep = pg;
-
 -	jffs2_dbg(1, "%s()\n", __func__);
 -
 -	if (pageofs > inode->i_size) {
 -		/* Make new hole frag from old EOF to new page */
-		struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
 -		struct jffs2_raw_inode ri;
 -		struct jffs2_full_dnode *fn;
 -		uint32_t alloc_len;
@@ -2482,7 +2476,7 @@ diff -Nupr old/fs/jffs2/file.c new/fs/jffs2/file.c
 -		ret = jffs2_reserve_space(c, sizeof(ri), &alloc_len,
 -					  ALLOC_NORMAL, JFFS2_SUMMARY_INODE_SIZE);
 -		if (ret)
-			goto out_page;
+-			goto out_err;
 -
 -		mutex_lock(&f->sem);
 -		memset(&ri, 0, sizeof(ri));
@@ -2512,7 +2506,7 @@ diff -Nupr old/fs/jffs2/file.c new/fs/jffs2/file.c
 -			ret = PTR_ERR(fn);
 -			jffs2_complete_reservation(c);
 -			mutex_unlock(&f->sem);
-			goto out_page;
+-			goto out_err;
 -		}
 -		ret = jffs2_add_full_dnode_to_inode(c, f, fn);
 -		if (f->metadata) {
@@ -2527,7 +2521,7 @@ diff -Nupr old/fs/jffs2/file.c new/fs/jffs2/file.c
 -			jffs2_free_full_dnode(fn);
 -			jffs2_complete_reservation(c);
 -			mutex_unlock(&f->sem);
-			goto out_page;
+-			goto out_err;
 -		}
 -		jffs2_complete_reservation(c);
 -		inode->i_size = pageofs;
@@ -2535,6 +2529,19 @@ diff -Nupr old/fs/jffs2/file.c new/fs/jffs2/file.c
 -	}
 -
 -	/*
+-	 * While getting a page and reading data in, lock c->alloc_sem until
+-	 * the page is Uptodate. Otherwise GC task may attempt to read the same
+-	 * page in read_cache_page(), which causes a deadlock.
+-	 */
+-	mutex_lock(&c->alloc_sem);
+-	pg = grab_cache_page_write_begin(mapping, index, flags);
+-	if (!pg) {
+-		ret = -ENOMEM;
+-		goto release_sem;
+-	}
+-	*pagep = pg;
+-
+-	/*
 -	 * Read in the page if it wasn't already present. Cannot optimize away
 -	 * the whole page write case until jffs2_write_end can handle the
 -	 * case of a short-copy.
@@ -2543,19 +2550,20 @@ diff -Nupr old/fs/jffs2/file.c new/fs/jffs2/file.c
 -		mutex_lock(&f->sem);
 -		ret = jffs2_do_readpage_nolock(inode, pg);
 -		mutex_unlock(&f->sem);
-		if (ret)
-			goto out_page;
+-		if (ret) {
+-			unlock_page(pg);
+-			put_page(pg);
+-			goto release_sem;
+-		}
 -	}
 -	jffs2_dbg(1, "end write_begin(). pg->flags %lx\n", pg->flags);
-	return ret;
 -
-out_page:
-	unlock_page(pg);
-	put_page(pg);
+-release_sem:
+-	mutex_unlock(&c->alloc_sem);
+-out_err:
 -	return ret;
-+	/* Do nothing */
- }
- 
+-}
+-
 -static int jffs2_write_end(struct file *filp, struct address_space *mapping,
 -			loff_t pos, unsigned len, unsigned copied,
 -			struct page *pg, void *fsdata)
@@ -2653,7 +2661,8 @@ diff -Nupr old/fs/jffs2/file.c new/fs/jffs2/file.c
 -	unlock_page(pg);
 -	put_page(pg);
 -	return writtenlen > 0 ? writtenlen : ret;
-}
+	/* Do nothing */
+ }
 diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 --- old/fs/jffs2/fs.c	2022-05-09 17:22:53.000000000 +0800
 +++ new/fs/jffs2/fs.c	2022-05-10 16:13:37.830000000 +0800
@@ -2769,7 +2778,11 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 	ri->version = cpu_to_je32(++f->highest_version);
 +	ri->uid = cpu_to_je16(inode->i_uid);
 +	ri->gid = cpu_to_je16(inode->i_gid);
-+
+ 
+-	ri->uid = cpu_to_je16((ivalid & ATTR_UID)?
+-		from_kuid(&init_user_ns, iattr->ia_uid):i_uid_read(inode));
+-	ri->gid = cpu_to_je16((ivalid & ATTR_GID)?
+-		from_kgid(&init_user_ns, iattr->ia_gid):i_gid_read(inode));
 +	if (ivalid & CHG_UID) {
 +		if (((c_uid != inode->i_uid) || (attr->attr_chg_uid != inode->i_uid)) && (!IsCapPermit(CAP_CHOWN))) {
 +			jffs2_complete_reservation(c);
@@ -2791,16 +2804,7 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 +			ri->gid = cpu_to_je16(attr->attr_chg_gid);
 +		}
 +	}
- 
-	ri->uid = cpu_to_je16((ivalid & ATTR_UID)?
-		from_kuid(&init_user_ns, iattr->ia_uid):i_uid_read(inode));
-	ri->gid = cpu_to_je16((ivalid & ATTR_GID)?
-		from_kgid(&init_user_ns, iattr->ia_gid):i_gid_read(inode));
-
-	if (ivalid & ATTR_MODE)
-		ri->mode = cpu_to_jemode(iattr->ia_mode);
-	else
-		ri->mode = cpu_to_jemode(inode->i_mode);
+
 +	if (ivalid & CHG_MODE) {
 +		if (!IsCapPermit(CAP_FOWNER) && (c_uid != inode->i_uid)) {
 +			jffs2_complete_reservation(c);
@@ -2814,6 +2818,10 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 +		}
 +	}
 
+-	if (ivalid & ATTR_MODE)
+-		ri->mode = cpu_to_jemode(iattr->ia_mode);
+-	else
+-		ri->mode = cpu_to_jemode(inode->i_mode);
 +	if (ivalid & CHG_ATIME) {
 +		if ((c_uid != inode->i_uid) || (attr->attr_chg_uid != inode->i_uid)) {
 +			return -EPERM;
@@ -2823,7 +2831,7 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 +	} else {
 +		ri->atime = cpu_to_je32(inode->i_atime);
 +	}
-+
+ 
 +	if (ivalid & CHG_MTIME) {
 +		if ((c_uid != inode->i_uid) || (attr->attr_chg_uid != inode->i_uid)) {
 +			return -EPERM;
@@ -2875,7 +2883,7 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 	if (IS_ERR(new_metadata)) {
 		jffs2_complete_reservation(c);
 		jffs2_free_raw_inode(ri);
-@@ -147,23 +140,20 @@ int jffs2_do_setattr (struct inode *inod
+@@ -147,23 +140,20 @@ int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
 		return PTR_ERR(new_metadata);
 	}
 	/* It worked. Update the inode */
@@ -2908,7 +2916,7 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 		f->metadata = NULL;
 	} else {
 		f->metadata = new_metadata;
-@@ -182,315 +172,201 @@ int jffs2_do_setattr (struct inode *inod
+@@ -182,315 +172,201 @@ int jffs2_do_setattr (struct inode *inode, struct iattr *iattr)
 	   We are protected from a simultaneous write() extending i_size
 	   back past iattr->ia_size, because do_truncate() holds the
 	   generic inode semaphore. */
@@ -2927,31 +2935,43 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 {
 -	struct inode *inode = d_inode(dentry);
 -	int rc;
-
-	rc = setattr_prepare(dentry, iattr);
-	if (rc)
-		return rc;
-
-	rc = jffs2_do_setattr(inode, iattr);
-	if (!rc && (iattr->ia_valid & ATTR_MODE))
-		rc = posix_acl_chmod(inode, inode->i_mode);
 +	/* We can forget about this inode for now - drop all
 +	 *  the nodelists associated with it, etc.
 +	 */
 +	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
 +	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
+
+	jffs2_do_clear_inode(c, f);
+}
+ 
+-	rc = setattr_prepare(dentry, iattr);
+-	if (rc)
+-		return rc;
+static struct jffs2_inode *ilookup(struct super_block *sb, uint32_t ino)
+{
+	struct jffs2_inode *node = NULL;
+ 
+-	rc = jffs2_do_setattr(inode, iattr);
+-	if (!rc && (iattr->ia_valid & ATTR_MODE))
+-		rc = posix_acl_chmod(inode, inode->i_mode);
+	if (sb->s_root == NULL) {
+		return NULL;
+	}
 
 -	return rc;
-+	jffs2_do_clear_inode(c, f);
+	// Check for this inode in the cache
+	Jffs2NodeLock();
+	(void)Jffs2HashGet(&sb->s_node_hash_lock, &sb->s_node_hash[0], sb, ino, &node);
+	Jffs2NodeUnlock();
+	return node;
 }
 
 -int jffs2_statfs(struct dentry *dentry, struct kstatfs *buf)
-+static struct jffs2_inode *ilookup(struct super_block *sb, uint32_t ino)
+struct jffs2_inode *new_inode(struct super_block *sb)
 {
 -	struct jffs2_sb_info *c = JFFS2_SB_INFO(dentry->d_sb);
 -	unsigned long avail;
-+	struct jffs2_inode *node = NULL;
- 
+-
 -	buf->f_type = JFFS2_SUPER_MAGIC;
 -	buf->f_bsize = 1 << PAGE_SHIFT;
 -	buf->f_blocks = c->flash_size >> PAGE_SHIFT;
@@ -2970,47 +2990,35 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 -	spin_unlock(&c->erase_completion_lock);
 -
 -	buf->f_bavail = buf->f_bfree = avail >> PAGE_SHIFT;
-+	if (sb->s_root == NULL) {
-+		return NULL;
-+	}
+	struct jffs2_inode *inode = NULL;
 
 -	return 0;
-+	// Check for this inode in the cache
-+	Jffs2NodeLock();
-+	(void)Jffs2HashGet(&sb->s_node_hash_lock, &sb->s_node_hash[0], sb, ino, &node);
-+	Jffs2NodeUnlock();
-+	return node;
- }
+-}
+	inode = zalloc(sizeof (struct jffs2_inode));
+	if (inode == NULL)
+		return 0;
+ 
+	D2(PRINTK("malloc new_inode %x ####################################\n",
+		inode));
 
-
 -void jffs2_evict_inode (struct inode *inode)
-+struct jffs2_inode *new_inode(struct super_block *sb)
- {
+-{
 -	/* We can forget about this inode for now - drop all
 -	 *  the nodelists associated with it, etc.
 -	 */
 -	struct jffs2_sb_info *c = JFFS2_SB_INFO(inode->i_sb);
 -	struct jffs2_inode_info *f = JFFS2_INODE_INFO(inode);
-+	struct jffs2_inode *inode = NULL;
+	inode->i_sb = sb;
+	inode->i_ino = 1;
+	inode->i_nlink = 1;    // Let JFFS2 manage the link count
+	inode->i_size = 0;
+	LOS_ListInit((&(inode->i_hashlist)));
 
 -	jffs2_dbg(1, "%s(): ino #%lu mode %o\n",
 -		  __func__, inode->i_ino, inode->i_mode);
 -	truncate_inode_pages_final(&inode->i_data);
 -	clear_inode(inode);
 -	jffs2_do_clear_inode(c, f);
-+	inode = zalloc(sizeof (struct jffs2_inode));
-+	if (inode == NULL)
-+		return 0;
-+
-+	D2(PRINTK("malloc new_inode %x ####################################\n",
-+		inode));
-+
-+	inode->i_sb = sb;
-+	inode->i_ino = 1;
-+	inode->i_nlink = 1;    // Let JFFS2 manage the link count
-+	inode->i_size = 0;
-+	LOS_ListInit((&(inode->i_hashlist)));
-+
 +	return inode;
 }
 
@@ -3075,16 +3083,16 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 -	inode->i_ctime = ITIME(je32_to_cpu(latest_node.ctime));
 -
 -	set_nlink(inode, f->inocache->pino_nlink);
+-
+-	inode->i_blocks = (inode->i_size + 511) >> 9;
 +	inode->i_atime = je32_to_cpu(latest_node.atime);
 +	inode->i_mtime = je32_to_cpu(latest_node.mtime);
 +	inode->i_ctime = je32_to_cpu(latest_node.ctime);
 +	inode->i_nlink = f->inocache->pino_nlink;
 
-	inode->i_blocks = (inode->i_size + 511) >> 9;
+-	switch (inode->i_mode & S_IFMT) {
 +	(void)mutex_unlock(&f->sem);
 
-	switch (inode->i_mode & S_IFMT) {
-
 -	case S_IFLNK:
 -		inode->i_op = &jffs2_symlink_inode_operations;
 -		inode->i_link = f->target;
@@ -3154,20 +3162,21 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 	jffs2_dbg(1, "jffs2_read_inode() returning\n");
 -	unlock_new_inode(inode);
 -	return inode;
-
+	Jffs2NodeUnlock();
+ 
 -error_io:
 -	ret = -EIO;
 -error:
 -	mutex_unlock(&f->sem);
 -	iget_failed(inode);
 -	return ERR_PTR(ret);
-}
-+	Jffs2NodeUnlock();
+	return inode;
+ }
 
 -void jffs2_dirty_inode(struct inode *inode, int flags)
 -{
 -	struct iattr iattr;
-
+ 
 -	if (!(inode->i_state & I_DIRTY_DATASYNC)) {
 -		jffs2_dbg(2, "%s(): not calling setattr() for ino #%lu\n",
 -			  __func__, inode->i_ino);
@@ -3186,16 +3195,19 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 -	iattr.ia_ctime = inode->i_ctime;
 -
 -	jffs2_do_setattr(inode, &iattr);
-+	return inode;
- }
+-}
+// -------------------------------------------------------------------------
+// Decrement the reference count on an inode. If this makes the ref count
+// zero, then this inode can be freed.
 
 -int jffs2_do_remount_fs(struct super_block *sb, struct fs_context *fc)
-{
+int jffs2_iput(struct jffs2_inode *i)
+ {
 -	struct jffs2_sb_info *c = JFFS2_SB_INFO(sb);
 -
 -	if (c->flags & JFFS2_SB_FLAG_RO && !sb_rdonly(sb))
 -		return -EROFS;
- 
+-
 -	/* We stop if it was running, then restart if it needs to.
 -	   This also catches the case where it was stopped and this
 -	   is just a remount to restart it.
@@ -3206,12 +3218,9 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 -		jffs2_flush_wbuf_pad(c);
 -		mutex_unlock(&c->alloc_sem);
 -	}
-+// -------------------------------------------------------------------------
-+// Decrement the reference count on an inode. If this makes the ref count
-+// zero, then this inode can be freed.
-+
-+int jffs2_iput(struct jffs2_inode *i)
-+{
+-
+-	if (!(fc->sb_flags & SB_RDONLY))
+-		jffs2_start_garbage_collect_thread(c);
 +	// Called in jffs2_find
 +	// (and jffs2_open and jffs2_ops_mkdir?)
 +	// super.c jffs2_fill_super,
@@ -3233,9 +3242,6 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 +	free(i);
 +	Jffs2NodeUnlock();
 
-	if (!(fc->sb_flags & SB_RDONLY))
-		jffs2_start_garbage_collect_thread(c);
-
 -	fc->sb_flags |= SB_NOATIME;
 	return 0;
 }
@@ -3342,7 +3348,7 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 {
 	/*
 	 * Pick a inocache hash size based on the size of the medium.
-@@ -510,117 +386,17 @@ static int calculate_inocache_hashsize(u
+@@ -510,118 +386,17 @@ static int calculate_inocache_hashsize(uint32_t flash_size)
 	return hashsize;
 }
 
@@ -3438,8 +3444,9 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 -	jffs2_free_ino_caches(c);
 -	jffs2_free_raw_node_refs(c);
 -	kvfree(c->blocks);
- out_inohash:
 -	jffs2_clear_xattr_subsystem(c);
+-	jffs2_sum_exit(c);
+- out_inohash:
 -	kfree(c->inocache_list);
 - out_wbuf:
 -	jffs2_flash_cleanup(c);
@@ -3448,8 +3455,7 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 -}
 -
 void jffs2_gc_release_inode(struct jffs2_sb_info *c,
-				   struct jffs2_inode_info *f)
-+		   	    struct jffs2_inode_info *f)
+ 				   struct jffs2_inode_info *f)
 {
 -	iput(OFNI_EDONI_2SFFJ(f));
 +	struct jffs2_inode *node = OFNI_EDONI_2SFFJ(f);
@@ -3464,7 +3470,7 @@ diff -Nupr old/fs/jffs2/fs.c new/fs/jffs2/fs.c
 	struct jffs2_inode_cache *ic;
 
 	if (unlinked) {
-@@ -668,72 +444,9 @@ struct jffs2_inode_info *jffs2_gc_fetch_
+@@ -669,72 +444,9 @@ struct jffs2_inode_info *jffs2_gc_fetch_inode(struct jffs2_sb_info *c,
 		   Just iget() it, and if read_inode() is necessary that's OK.
 		*/
 		inode = jffs2_iget(OFNI_BS_2SFFJ(c), inum);
@@ -5556,7 +5562,7 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 
 #define DEFAULT_EMPTY_SCAN_SIZE 256
 
-@@ -74,7 +73,7 @@ static int file_dirty(struct jffs2_sb_in
+@@ -74,7 +73,7 @@ static int file_dirty(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
 		return ret;
 	if ((ret = jffs2_scan_dirty_space(c, jeb, jeb->free_size)))
 		return ret;
@@ -5565,15 +5571,13 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 	   think it's recoverable now. */
 	jeb->dirty_size += jeb->wasted_size;
 	c->dirty_size += jeb->wasted_size;
-@@ -95,40 +94,26 @@ int jffs2_scan_medium(struct jffs2_sb_in
+@@ -95,40 +94,26 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
 	unsigned char *flashbuf = NULL;
 	uint32_t buf_size = 0;
 	struct jffs2_summary *s = NULL; /* summary info collected by the scan process */
 -#ifndef __ECOS
 -	size_t pointlen, try_size;
-+	struct super_block *sb = NULL;
-+	struct MtdNorDev *device = NULL;
- 
+-
 -	ret = mtd_point(c->mtd, 0, c->mtd->size, &pointlen,
 -			(void **)&flashbuf, NULL);
 -	if (!ret && pointlen < c->mtd->size) {
@@ -5586,6 +5590,9 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 -	if (ret && ret != -EOPNOTSUPP)
 -		jffs2_dbg(1, "MTD point failed %d\n", ret);
 -#endif
+	struct super_block *sb = NULL;
+	struct MtdNorDev *device = NULL;
+
 	if (!flashbuf) {
 		/* For NAND it's quicker to read a whole eraseblock at a time,
 		   apparently */
@@ -5613,7 +5620,7 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 	}
 
 	if (jffs2_sum_active()) {
-@@ -140,7 +125,9 @@ int jffs2_scan_medium(struct jffs2_sb_in
+@@ -140,7 +125,9 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
 		}
 	}
 
@@ -5624,7 +5631,7 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 		struct jffs2_eraseblock *jeb = &c->blocks[i];
 
 		cond_resched();
-@@ -269,19 +256,12 @@ int jffs2_scan_medium(struct jffs2_sb_in
+@@ -269,14 +256,10 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
 			ret = -EIO;
 			goto out;
 		}
@@ -5634,20 +5641,13 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 	}
 	ret = 0;
  out:
-	if (buf_size)
-		kfree(flashbuf);
-#ifndef __ECOS
-	else
-		mtd_unpoint(c->mtd, 0, c->mtd->size);
-#endif
+-	jffs2_sum_reset_collected(s);
 -	kfree(s);
-+
 +	kfree(flashbuf);
-+
- 	return ret;
- }
- 
-@@ -411,7 +391,7 @@ static int jffs2_scan_xref_node(struct j
+  out_buf:
+ 	if (buf_size)
+ 		kfree(flashbuf);
+@@ -413,7 +396,7 @@ static int jffs2_scan_xref_node(struct jffs2_sb_info *c, struct jffs2_eraseblock
 	if (!ref)
 		return -ENOMEM;
 
@@ -5656,7 +5656,7 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 	 * and AFTER xattr_ref is marked as a dead xref,
 	 * ref->xid is used to store 32bit xid, xd is not used
 	 * ref->ino is used to store 32bit inode-number, ic is not used
-@@ -484,10 +464,10 @@ static int jffs2_scan_eraseblock (struct
+@@ -486,10 +469,10 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
 		struct jffs2_sum_marker *sm;
 		void *sumptr = NULL;
 		uint32_t sumlen;
@@ -5669,7 +5669,7 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 			if (je32_to_cpu(sm->magic) == JFFS2_SUM_MAGIC) {
 				sumptr = buf + je32_to_cpu(sm->offset);
 				sumlen = c->sector_size - je32_to_cpu(sm->offset);
-@@ -500,13 +480,13 @@ static int jffs2_scan_eraseblock (struct
+@@ -502,13 +485,13 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
 				buf_len = sizeof(*sm);
 
 			/* Read as much as we want into the _end_ of the preallocated buffer */
@@ -5686,7 +5686,7 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 			if (je32_to_cpu(sm->magic) == JFFS2_SUM_MAGIC) {
 				sumlen = c->sector_size - je32_to_cpu(sm->offset);
 				sumptr = buf + buf_size - sumlen;
-@@ -521,18 +501,15 @@ static int jffs2_scan_eraseblock (struct
+@@ -523,18 +506,15 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
 					sumptr = kmalloc(sumlen, GFP_KERNEL);
 					if (!sumptr)
 						return -ENOMEM;
@@ -5709,7 +5709,7 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 				}
 			}
 
-@@ -543,7 +520,7 @@ static int jffs2_scan_eraseblock (struct
+@@ -545,7 +525,7 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
 
 			if (buf_size && sumlen > buf_size)
 				kfree(sumptr);
@@ -5718,7 +5718,7 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 			   If it returns positive, that's a block classification
 			   (i.e. BLK_STATE_xxx) so return that too.
 			   If it returns zero, fall through to full scan. */
-@@ -605,7 +582,7 @@ full_scan:
+@@ -607,7 +587,7 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
 	/* Now ofs is a complete physical flash offset as it always was... */
 	ofs += jeb->offset;
 
@@ -5727,7 +5727,7 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 
 	dbg_summary("no summary found in jeb 0x%08x. Apply original scan.\n",jeb->offset);
 
-@@ -698,7 +675,7 @@ scan_more:
+@@ -700,7 +680,7 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
 				scan_end = buf_len;
 				goto more_empty;
 			}
@@ -5736,7 +5736,7 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 			/* See how much more there is to read in this eraseblock... */
 			buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
 			if (!buf_len) {
-@@ -948,7 +925,7 @@ scan_more:
+@@ -950,7 +930,7 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
 	jffs2_dbg(1, "Block at 0x%08x: free 0x%08x, dirty 0x%08x, unchecked 0x%08x, used 0x%08x, wasted 0x%08x\n",
 		  jeb->offset, jeb->free_size, jeb->dirty_size,
 		  jeb->unchecked_size, jeb->used_size, jeb->wasted_size);
@@ -5745,7 +5745,7 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 	/* mark_node_obsolete can add to wasted !! */
 	if (jeb->wasted_size) {
 		jeb->dirty_size += jeb->wasted_size;
-@@ -976,7 +953,6 @@ struct jffs2_inode_cache *jffs2_scan_mak
+@@ -978,7 +958,6 @@ struct jffs2_inode_cache *jffs2_scan_make_ino_cache(struct jffs2_sb_info *c, uin
 		pr_notice("%s(): allocation of inode cache failed\n", __func__);
 		return NULL;
 	}
@@ -5753,7 +5753,7 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 
 	ic->ino = ino;
 	ic->nodes = (void *)ic;
-@@ -1067,7 +1043,7 @@ static int jffs2_scan_dirent_node(struct
+@@ -1069,7 +1048,7 @@ static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblo
 	pseudo_random += je32_to_cpu(rd->version);
 
 	/* Should never happen. Did. (OLPC trac #4184)*/
@@ -5762,7 +5762,7 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 	if (checkedlen < rd->nsize) {
 		pr_err("Dirent at %08x has zeroes in name. Truncating to %d chars\n",
 		       ofs, checkedlen);
-@@ -1079,7 +1055,7 @@ static int jffs2_scan_dirent_node(struct
+@@ -1081,7 +1060,7 @@ static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblo
 	memcpy(&fd->name, rd->name, checkedlen);
 	fd->name[checkedlen] = 0;
 
@@ -5771,7 +5771,248 @@ diff -Nupr old/fs/jffs2/scan.c new/fs/jffs2/scan.c
 	if (crc != je32_to_cpu(rd->name_crc)) {
 		pr_notice("%s(): Name CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
 			  __func__, ofs, je32_to_cpu(rd->name_crc), crc);
-@@ -1104,7 +1080,7 @@ static int jffs2_scan_dirent_node(struct
+@@ -1106,7 +1085,7 @@ static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblo
+ 	fd->next = NULL;
+ 	fd->version = je32_to_cpu(rd->version);
+ 	fd->ino = je32_to_cpu(rd->ino);
+-	fd->nhash = full_name_hash(NULL, fd->name, checkedlen);
+	fd->nhash = full_name_hash(fd->name, checkedlen);
+ 	fd->type = rd->type;
+ 	jffs2_add_fd_to_list(c, fd, &ic->scan_dents);
+ 
+diff
+@@ -9,18 +9,17 @@
+  *
+  */
+ 
+-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+-
+ #include <linux/kernel.h>
+ #include <linux/sched.h>
+ #include <linux/slab.h>
+-#include <linux/mtd/mtd.h>
+ #include <linux/pagemap.h>
+-#include <linux/crc32.h>
+ #include <linux/compiler.h>
+ #include "nodelist.h"
+ #include "summary.h"
+ #include "debug.h"
+#include "mtd_dev.h"
+#include "los_typedef.h"
+#include "los_crc32.h"
+ 
+ #define DEFAULT_EMPTY_SCAN_SIZE 256
+ 
+@@ -74,7 +73,7 @@ static int file_dirty(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb)
+ 		return ret;
+ 	if ((ret = jffs2_scan_dirty_space(c, jeb, jeb->free_size)))
+ 		return ret;
+-	/* Turned wasted size into dirty, since we apparently 
+	/* Turned wasted size into dirty, since we apparently
+ 	   think it's recoverable now. */
+ 	jeb->dirty_size += jeb->wasted_size;
+ 	c->dirty_size += jeb->wasted_size;
+@@ -95,40 +94,26 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
+ 	unsigned char *flashbuf = NULL;
+ 	uint32_t buf_size = 0;
+ 	struct jffs2_summary *s = NULL; /* summary info collected by the scan process */
+-#ifndef __ECOS
+-	size_t pointlen, try_size;
+-
+-	ret = mtd_point(c->mtd, 0, c->mtd->size, &pointlen,
+-			(void **)&flashbuf, NULL);
+-	if (!ret && pointlen < c->mtd->size) {
+-		/* Don't muck about if it won't let us point to the whole flash */
+-		jffs2_dbg(1, "MTD point returned len too short: 0x%zx\n",
+-			  pointlen);
+-		mtd_unpoint(c->mtd, 0, pointlen);
+-		flashbuf = NULL;
+-	}
+-	if (ret && ret != -EOPNOTSUPP)
+-		jffs2_dbg(1, "MTD point failed %d\n", ret);
+-#endif
+	struct super_block *sb = NULL;
+	struct MtdNorDev *device = NULL;
+
+ 	if (!flashbuf) {
+ 		/* For NAND it's quicker to read a whole eraseblock at a time,
+ 		   apparently */
+ 		if (jffs2_cleanmarker_oob(c))
+-			try_size = c->sector_size;
+			buf_size = c->sector_size;
+ 		else
+-			try_size = PAGE_SIZE;
+			buf_size = PAGE_SIZE;
+ 
+ 		jffs2_dbg(1, "Trying to allocate readbuf of %zu "
+-			  "bytes\n", try_size);
+			  "bytes\n", buf_size);
+ 
+-		flashbuf = mtd_kmalloc_up_to(c->mtd, &try_size);
+		flashbuf = kmalloc(buf_size, GFP_KERNEL);
+ 		if (!flashbuf)
+ 			return -ENOMEM;
+ 
+ 		jffs2_dbg(1, "Allocated readbuf of %zu bytes\n",
+-			  try_size);
+-
+-		buf_size = (uint32_t)try_size;
+			  buf_size);
+ 	}
+ 
+ 	if (jffs2_sum_active()) {
+@@ -140,7 +125,9 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
+ 		}
+ 	}
+ 
+-	for (i=0; i<c->nr_blocks; i++) {
+	sb = OFNI_BS_2SFFJ(c);
+	device = (struct MtdNorDev*)(sb->s_dev);
+	for (i=device->blockStart; i<c->nr_blocks + device->blockStart; i++) {
+ 		struct jffs2_eraseblock *jeb = &c->blocks[i];
+ 
+ 		cond_resched();
+@@ -269,14 +256,10 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
+ 			ret = -EIO;
+ 			goto out;
+ 		}
+-		spin_lock(&c->erase_completion_lock);
+-		jffs2_garbage_collect_trigger(c);
+-		spin_unlock(&c->erase_completion_lock);
+ 	}
+ 	ret = 0;
+  out:
+-	jffs2_sum_reset_collected(s);
+-	kfree(s);
+	kfree(flashbuf);
+  out_buf:
+ 	if (buf_size)
+ 		kfree(flashbuf);
+@@ -413,7 +396,7 @@ static int jffs2_scan_xref_node(struct jffs2_sb_info *c, struct jffs2_eraseblock
+ 	if (!ref)
+ 		return -ENOMEM;
+ 
+-	/* BEFORE jffs2_build_xattr_subsystem() called, 
+	/* BEFORE jffs2_build_xattr_subsystem() called,
+ 	 * and AFTER xattr_ref is marked as a dead xref,
+ 	 * ref->xid is used to store 32bit xid, xd is not used
+ 	 * ref->ino is used to store 32bit inode-number, ic is not used
+@@ -486,10 +469,10 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
+ 		struct jffs2_sum_marker *sm;
+ 		void *sumptr = NULL;
+ 		uint32_t sumlen;
+-	      
+
+ 		if (!buf_size) {
+ 			/* XIP case. Just look, point at the summary if it's there */
+-			sm = (void *)buf + c->sector_size - sizeof(*sm);
+			sm = (struct jffs2_sum_marker *)((uint8_t *)buf + c->sector_size - sizeof(*sm));
+ 			if (je32_to_cpu(sm->magic) == JFFS2_SUM_MAGIC) {
+ 				sumptr = buf + je32_to_cpu(sm->offset);
+ 				sumlen = c->sector_size - je32_to_cpu(sm->offset);
+@@ -502,13 +485,13 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
+ 				buf_len = sizeof(*sm);
+ 
+ 			/* Read as much as we want into the _end_ of the preallocated buffer */
+-			err = jffs2_fill_scan_buf(c, buf + buf_size - buf_len, 
+			err = jffs2_fill_scan_buf(c, buf + buf_size - buf_len,
+ 						  jeb->offset + c->sector_size - buf_len,
+-						  buf_len);				
+						  buf_len);
+ 			if (err)
+ 				return err;
+ 
+-			sm = (void *)buf + buf_size - sizeof(*sm);
+			sm = (struct jffs2_sum_marker *)((uint8_t *)buf + buf_size - sizeof(*sm));
+ 			if (je32_to_cpu(sm->magic) == JFFS2_SUM_MAGIC) {
+ 				sumlen = c->sector_size - je32_to_cpu(sm->offset);
+ 				sumptr = buf + buf_size - sumlen;
+@@ -523,18 +506,15 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
+ 					sumptr = kmalloc(sumlen, GFP_KERNEL);
+ 					if (!sumptr)
+ 						return -ENOMEM;
+-					memcpy(sumptr + sumlen - buf_len, buf + buf_size - buf_len, buf_len);
+					memcpy((uint8_t *)sumptr + sumlen - buf_len, buf + buf_size - buf_len, buf_len);
+ 				}
+ 				if (buf_len < sumlen) {
+ 					/* Need to read more so that the entire summary node is present */
+-					err = jffs2_fill_scan_buf(c, sumptr, 
+					err = jffs2_fill_scan_buf(c, sumptr,
+ 								  jeb->offset + c->sector_size - sumlen,
+-								  sumlen - buf_len);				
+-					if (err) {
+-						if (sumlen > buf_size)
+-							kfree(sumptr);
+								  sumlen - buf_len);
+					if (err)
+ 						return err;
+-					}
+ 				}
+ 			}
+ 
+@@ -545,7 +525,7 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
+ 
+ 			if (buf_size && sumlen > buf_size)
+ 				kfree(sumptr);
+-			/* If it returns with a real error, bail. 
+			/* If it returns with a real error, bail.
+ 			   If it returns positive, that's a block classification
+ 			   (i.e. BLK_STATE_xxx) so return that too.
+ 			   If it returns zero, fall through to full scan. */
+@@ -607,7 +587,7 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
+ 	/* Now ofs is a complete physical flash offset as it always was... */
+ 	ofs += jeb->offset;
+ 
+-	noise = 10;
+	noise = 1;
+ 
+ 	dbg_summary("no summary found in jeb 0x%08x. Apply original scan.\n",jeb->offset);
+ 
+@@ -700,7 +680,7 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
+ 				scan_end = buf_len;
+ 				goto more_empty;
+ 			}
+-			
+
+ 			/* See how much more there is to read in this eraseblock... */
+ 			buf_len = min_t(uint32_t, buf_size, jeb->offset + c->sector_size - ofs);
+ 			if (!buf_len) {
+@@ -950,7 +930,7 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
+ 	jffs2_dbg(1, "Block at 0x%08x: free 0x%08x, dirty 0x%08x, unchecked 0x%08x, used 0x%08x, wasted 0x%08x\n",
+ 		  jeb->offset, jeb->free_size, jeb->dirty_size,
+ 		  jeb->unchecked_size, jeb->used_size, jeb->wasted_size);
+-	
+
+ 	/* mark_node_obsolete can add to wasted !! */
+ 	if (jeb->wasted_size) {
+ 		jeb->dirty_size += jeb->wasted_size;
+@@ -978,7 +958,6 @@ struct jffs2_inode_cache *jffs2_scan_make_ino_cache(struct jffs2_sb_info *c, uin
+ 		pr_notice("%s(): allocation of inode cache failed\n", __func__);
+ 		return NULL;
+ 	}
+-	memset(ic, 0, sizeof(*ic));
+ 
+ 	ic->ino = ino;
+ 	ic->nodes = (void *)ic;
+@@ -1069,7 +1048,7 @@ static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblo
+ 	pseudo_random += je32_to_cpu(rd->version);
+ 
+ 	/* Should never happen. Did. (OLPC trac #4184)*/
+-	checkedlen = strnlen(rd->name, rd->nsize);
+	checkedlen = strnlen((const char *)rd->name, rd->nsize);
+ 	if (checkedlen < rd->nsize) {
+ 		pr_err("Dirent at %08x has zeroes in name. Truncating to %d chars\n",
+ 		       ofs, checkedlen);
+@@ -1081,7 +1060,7 @@ static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblo
+ 	memcpy(&fd->name, rd->name, checkedlen);
+ 	fd->name[checkedlen] = 0;
+ 
+-	crc = crc32(0, fd->name, checkedlen);
+	crc = crc32(0, fd->name, rd->nsize);
+ 	if (crc != je32_to_cpu(rd->name_crc)) {
+ 		pr_notice("%s(): Name CRC failed on node at 0x%08x: Read 0x%08x, calculated 0x%08x\n",
+ 			  __func__, ofs, je32_to_cpu(rd->name_crc), crc);
+@@ -1106,7 +1085,7 @@ static int jffs2_scan_dirent_node(struct jffs2_sb_info *c, struct jffs2_eraseblo
 	fd->next = NULL;
 	fd->version = je32_to_cpu(rd->version);
 	fd->ino = je32_to_cpu(rd->ino);
--- a/fs/jffs2/src/vfs_jffs2.c
+++ b/fs/jffs2/src/vfs_jffs2.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2021-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -682,7 +682,6 @@ int VfsJffs2Rmdir(struct Vnode *parentVnode, struct Vnode *targetVnode, const ch
    LOS_MuxLock(&g_jffs2FsLock, (uint32_t)JFFS2_WAITING_FOREVER);

    ret = jffs2_rmdir(parentInode, targetInode, (const unsigned char *)path);
-
    if (ret == 0) {
        (void)jffs2_iput(targetInode);
    }
@@ -781,7 +780,6 @@ ssize_t VfsJffs2Readlink(struct Vnode *vnode, char *buffer, size_t bufLen)

    cnt = (bufLen - 1) < targetLen ? (bufLen - 1) : targetLen;
    if (LOS_CopyFromKernel(buffer, bufLen, (const char *)f->target, cnt) != 0) {
-        cnt = 0;
        LOS_MuxUnlock(&g_jffs2FsLock);
        return -EFAULT;
    }
@@ -809,7 +807,6 @@ int VfsJffs2Unlink(struct Vnode *parentVnode, struct Vnode *targetVnode, const c
    LOS_MuxLock(&g_jffs2FsLock, (uint32_t)JFFS2_WAITING_FOREVER);

    ret = jffs2_unlink(parentInode, targetInode, (const unsigned char *)path);
-
    if (ret == 0) {
        (void)jffs2_iput(targetInode);
    }
--- a/fs/proc/include/proc_fs.h
+++ b/fs/proc/include/proc_fs.h
@@ -137,7 +137,7 @@ struct ProcData {
 #define S_IALLUGO (S_ISUID | S_ISGID | S_ISVTX | S_IRWXU | S_IRWXG | S_IRWXO)

 /**
- * Interface for modules using proc below internal proc moudule;
+ * Interface for modules using proc below internal proc module;
 */
 /**
 * @ingroup  procfs
--- a/fs/proc/os_adapt/fs_cache_proc.c
+++ b/fs/proc/os_adapt/fs_cache_proc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2021-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -154,7 +154,8 @@ static int FsCacheInfoFill(struct SeqBuf *buf, void *arg)

    VnodeHold();
    LosBufPrintf(buf, "\n=================================================================\n");
-    LosBufPrintf(buf, "VnodeAddr     ParentAddr     DataAddr      VnodeOps      Hash          Ref    Type    Gid    Uid    Mode\n");
+    LosBufPrintf(buf,
+        "VnodeAddr     ParentAddr     DataAddr      VnodeOps      Hash           Ref    Type    Gid    Uid    Mode\n");
    vnodeVirtual = VnodeListProcess(buf, GetVnodeVirtualList());
    vnodeFree = VnodeListProcess(buf, GetVnodeFreeList());
    vnodeActive = VnodeListProcess(buf, GetVnodeActiveList());
--- a/fs/proc/src/proc_file.c
+++ b/fs/proc/src/proc_file.c
@@ -62,8 +62,9 @@ static struct ProcDirEntry g_procRootDirEntry = {

 int ProcMatch(unsigned int len, const char *name, struct ProcDirEntry *pn)
 {
-    if (len != pn->nameLen)
+    if (len != pn->nameLen) {
        return 0;
+    }
    return !strncmp(name, pn->name, len);
 }

@@ -387,8 +388,9 @@ static void FreeProcEntry(struct ProcDirEntry *entry)

 void ProcFreeEntry(struct ProcDirEntry *pn)
 {
-    if (atomic_dec_and_test(&pn->count))
+    if (atomic_dec_and_test(&pn->count)) {
        FreeProcEntry(pn);
+    }
 }

 static void RemoveProcEntryTravalsal(struct ProcDirEntry *pn)
--- a/fs/proc/src/proc_shellcmd.c
+++ b/fs/proc/src/proc_shellcmd.c
@@ -1,6 +1,6 @@
 /*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -62,8 +62,8 @@ int OsShellCmdWriteProc(int argc, char **argv)

    if (argc == WRITEPROC_ARGC) {
        value = argv[0];
-        path = argv[2];
-        len = strlen(value) + 1;  /* +1:add the \0 */
+        path = argv[2]; // 2: index of path
+        len = strlen(value) + 1;  /* + 1:add the \0 */
        if (strncmp(argv[1], ">>", strlen(">>")) == 0) {
            if ((realpath(path, realPath) == NULL) || (strncmp(realPath, rootProcDir, strlen(rootProcDir)) != 0)) {
                PRINT_ERR("No such file or directory\n");
--- a/fs/rootfs/Makefile
+++ b/fs/rootfs/Makefile
@@ -33,10 +33,6 @@ MODULE_NAME := rootfs

 LOCAL_SRCS := $(wildcard los_rootfs.c los_bootargs.c)

-ifeq ($(LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7), y)
-LOCAL_INCLUDE += -I $(LITEOSTOPDIR)/../../device/qemu/drivers/cfiflash
-endif
-
 LOCAL_FLAGS := $(LOCAL_INCLUDE)

 include $(MODULE)
--- a/fs/rootfs/los_bootargs.c
+++ b/fs/rootfs/los_bootargs.c
@@ -32,14 +32,10 @@
 #include "los_base.h"
 #include "string.h"

-#if defined(LOSCFG_STORAGE_SPINOR) || defined(LOSCFG_STORAGE_SPINAND) || defined(LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7)
+#if defined(LOSCFG_STORAGE_SPINOR) || defined(LOSCFG_STORAGE_SPINAND)
 #include "mtd_list.h"
 #endif

-#ifdef LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7
-#include "cfiflash.h"
-#endif
-
 #ifdef LOSCFG_STORAGE_EMMC
 #include "disk.h"
 #endif
@@ -98,19 +94,6 @@ INT32 LOS_GetCmdLine(VOID)
    }
 #endif

-#ifdef LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7
-    struct MtdDev *mtd = GetCfiMtdDev();
-    if (mtd == NULL) {
-        PRINT_ERR("Get CFI mtd failed!\n");
-        goto ERROUT;
-    }
-    g_alignSize = mtd->eraseSize;
-    ret = mtd->read(mtd, CFIFLASH_BOOTARGS_ADDR, COMMAND_LINE_SIZE, g_cmdLine);
-    if (ret == COMMAND_LINE_SIZE) {
-        return LOS_OK;
-    }
-#endif
-
    PRINT_ERR("Read cmdline error!\n");
 ERROUT:
    free(g_cmdLine);
--- a/fs/rootfs/los_rootfs.c
+++ b/fs/rootfs/los_rootfs.c
@@ -37,15 +37,11 @@
 #include "sys/stat.h"
 #include "sys/types.h"

-#if defined(LOSCFG_STORAGE_SPINOR) || defined(LOSCFG_STORAGE_SPINAND) || defined(LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7)
+#if defined(LOSCFG_STORAGE_SPINOR) || defined(LOSCFG_STORAGE_SPINAND)
 #include "mtd_list.h"
 #include "mtd_partition.h"
 #endif

-#ifdef LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7
-#include "cfiflash.h"
-#endif
-
 #ifdef LOSCFG_STORAGE_EMMC
 #include "disk.h"
 #include "ff.h"
@@ -128,14 +124,7 @@ STATIC INT32 AddEmmcParts(INT32 rootAddr, INT32 rootSize, INT32 userAddr, INT32

 STATIC INT32 AddPartitions(CHAR *dev, UINT64 rootAddr, UINT64 rootSize, UINT64 userAddr, UINT64 userSize)
 {
-#ifdef LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7
-    if ((strcmp(dev, "cfi-flash") == 0) && (rootAddr != CFIFLASH_ROOT_ADDR)) {
-        PRINT_ERR("Error rootAddr, must be %#0x!\n", CFIFLASH_ROOT_ADDR);
-        return LOS_NOK;
-    }
-#endif
-
-#if defined(LOSCFG_STORAGE_SPINOR) || defined(LOSCFG_STORAGE_SPINAND) || defined(LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7)
+#if defined(LOSCFG_STORAGE_SPINOR) || defined(LOSCFG_STORAGE_SPINAND)
    INT32 ret;
    INT32 blk0 = 0;
    INT32 blk2 = 2;
--- a/fs/rootfs/los_rootfs.h
+++ b/fs/rootfs/los_rootfs.h
@@ -59,12 +59,6 @@
 #define ROOTFS_ADDR             0x600000
 #define ROOTFS_SIZE             0x800000
 #define USERFS_SIZE             0x80000
-#elif defined (LOSCFG_PLATFORM_QEMU_ARM_VIRT_CA7)
-#define ROOT_DEV_NAME           "/dev/cfiflash0"
-#define USER_DEV_NAME           "/dev/cfiflash2"
-#define ROOTFS_ADDR             CFIFLASH_ROOT_ADDR
-#define ROOTFS_SIZE             0x1B00000
-#define USERFS_SIZE             (CFIFLASH_CAPACITY - ROOTFS_ADDR - ROOTFS_SIZE)
 #elif defined (LOSCFG_STORAGE_EMMC)
 #define ROOT_DEV_NAME           "/dev/mmcblk0p0"
 #ifdef LOSCFG_PLATFORM_PATCHFS
--- a/fs/vfs/bcache/src/bcache.c
+++ b/fs/vfs/bcache/src/bcache.c
@@ -581,8 +581,8 @@ static OsBcacheBlock *AllocNewBlock(OsBcache *bc, BOOL read, UINT64 num)
        DelBlock(bc, prefer);
    }

-    if (prefer->used) {
-        MergeSyncBlocks(bc, prefer);
+    if (prefer->used) { /* do not combine with next check */
+        MergeSyncBlocks(bc, prefer); /* prefer->used may be changed here */
    }

    if (prefer->used) {
--- a/fs/vfs/epoll/fs_epoll.c
+++ b/fs/vfs/epoll/fs_epoll.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2021-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -304,7 +304,7 @@ int epoll_wait(int epfd, FAR struct epoll_event *evs, int maxevents, int timeout
    int pollSize;

    epHead = EpollGetDataBuff(epfd);
-    if (epHead== NULL) {
+    if (epHead == NULL) {
        set_errno(EBADF);
        return -1;
    }
--- a/fs/vfs/include/vnode.h
+++ b/fs/vfs/include/vnode.h
@@ -160,7 +160,7 @@ typedef int VfsHashCmp(struct Vnode *vnode, void *arg);

 int VnodesInit(void);
 int VnodeDevInit(void);
-int VnodeAlloc(struct VnodeOps *vop, struct Vnode **vnode);
+int VnodeAlloc(struct VnodeOps *vop, struct Vnode **newVnode);
 int VnodeFree(struct Vnode *vnode);
 int VnodeLookup(const char *path, struct Vnode **vnode, uint32_t flags);
 int VnodeLookupFullpath(const char *fullpath, struct Vnode **vnode, uint32_t flags);
--- a/fs/vfs/operation/fullpath.c
+++ b/fs/vfs/operation/fullpath.c
@@ -1,6 +1,6 @@
 /*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -225,7 +225,6 @@ static char *vfs_normalize_fullpath(const char *directory, const char *filename,
        /* it's a absolute path, use it directly */

        fullpath = strdup(filename); /* copy string */
-
        if (fullpath == NULL) {
            *pathname = NULL;
            set_errno(ENOMEM);
@@ -258,11 +257,10 @@ int vfs_normalize_path(const char *directory, const char *filename, char **pathn
    }

 #ifdef VFS_USING_WORKDIR
-    if (directory == NULL)
-      {
+    if (directory == NULL) {
        spin_lock_irqsave(&curr->files->workdir_lock, lock_flags);
        directory = curr->files->workdir;
-      }
+    }
 #else
    if ((directory == NULL) && (filename[0] != '/')) {
        PRINT_ERR("NO_WORKING_DIR\n");
@@ -275,20 +273,18 @@ int vfs_normalize_path(const char *directory, const char *filename, char **pathn

    if ((filename[0] != '/') && (strlen(directory) + namelen + 2 > TEMP_PATH_MAX)) {
 #ifdef VFS_USING_WORKDIR
-        if (dir_flags == TRUE)
-          {
+        if (dir_flags == TRUE) {
            spin_unlock_irqrestore(&curr->files->workdir_lock, lock_flags);
-          }
+        }
 #endif
        return -ENAMETOOLONG;
    }

    fullpath = vfs_normalize_fullpath(directory, filename, pathname, namelen);
 #ifdef VFS_USING_WORKDIR
-    if (dir_flags == TRUE)
-      {
+    if (dir_flags == TRUE) {
        spin_unlock_irqrestore(&curr->files->workdir_lock, lock_flags);
-      }
+    }
 #endif
    if (fullpath == NULL) {
        return -get_errno();
@@ -308,7 +304,7 @@ int vfs_normalize_path(const char *directory, const char *filename, char **pathn

 int vfs_normalize_pathat(int dirfd, const char *filename, char **pathname)
 {
-    /* Get path by dirfd*/
+    /* Get path by dirfd */
    char *relativeoldpath = NULL;
    char *fullpath = NULL;
    int ret = 0;
--- a/fs/vfs/operation/vfs_force_umount.c
+++ b/fs/vfs/operation/vfs_force_umount.c
@@ -353,7 +353,7 @@ static struct file_operations_vfs g_errorFileOps = {
    .unlink = ErrorFopUnlink,
 };

-static struct Mount* GetDevMountPoint(struct Vnode *dev)
+static struct Mount* GetDevMountPoint(const struct Vnode *dev)
 {
    struct Mount *mnt = NULL;
    LIST_HEAD *mntList = GetMountList();
@@ -394,7 +394,7 @@ static void FilePreClose(struct file *filep, const struct file_operations_vfs *o
    }
 }

-static void FileDisableAndClean(struct Mount *mnt)
+static void FileDisableAndClean(const struct Mount *mnt)
 {
    struct filelist *flist = &tg_filelist;
    struct file *filep = NULL;
@@ -435,7 +435,7 @@ static void VnodeTryFree(struct Vnode *vnode)
    vnode->fop = &g_errorFileOps;
 }

-static void VnodeTryFreeAll(struct Mount *mount)
+static void VnodeTryFreeAll(const struct Mount *mount)
 {
    struct Vnode *vnode = NULL;
    struct Vnode *nextVnode = NULL;
--- a/fs/vfs/operation/vfs_other.c
+++ b/fs/vfs/operation/vfs_other.c
@@ -1,6 +1,6 @@
 /*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -132,19 +132,19 @@ int VfsPermissionCheck(uint fuid, uint fgid, uint fileMode, int accMode)
 #ifdef VFS_USING_WORKDIR
 static int SetWorkDir(const char *dir, size_t len)
 {
-  errno_t ret;
-  uint lock_flags;
-  LosProcessCB *curr = OsCurrProcessGet();
+    errno_t ret;
+    uint lock_flags;
+    LosProcessCB *curr = OsCurrProcessGet();

-  spin_lock_irqsave(&curr->files->workdir_lock, lock_flags);
-  ret = strncpy_s(curr->files->workdir, PATH_MAX, dir, len);
-  curr->files->workdir[PATH_MAX - 1] = '\0';
-  spin_unlock_irqrestore(&curr->files->workdir_lock, lock_flags);
-  if (ret != EOK) {
-      return -1;
-  }
+    spin_lock_irqsave(&curr->files->workdir_lock, lock_flags);
+    ret = strncpy_s(curr->files->workdir, PATH_MAX, dir, len);
+    curr->files->workdir[PATH_MAX - 1] = '\0';
+    spin_unlock_irqrestore(&curr->files->workdir_lock, lock_flags);
+    if (ret != EOK) {
+        return -1;
+    }

-  return 0;
+        return 0;
 }
 #endif

@@ -155,7 +155,6 @@ int chdir(const char *path)
    char *fullpath_bak = NULL;
    struct stat statBuff;

-
    if (!path) {
        set_errno(EFAULT);
        return -1;
--- a/fs/vfs/operation/vfs_utime.c
+++ b/fs/vfs/operation/vfs_utime.c
@@ -1,6 +1,6 @@
 /*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -57,7 +57,6 @@ int utime(const char *path, const struct utimbuf *ptimes)

    /* Sanity checks */

-
    if (path == NULL) {
        ret = -EINVAL;
        goto errout;
--- a/fs/vfs/operation/vfs_writev.c
+++ b/fs/vfs/operation/vfs_writev.c
@@ -66,7 +66,6 @@ static int iov_trans_to_buf(char *buf, ssize_t totallen, const struct iovec *iov
            } else {
                writepart = bytestowrite - ret;
                curbuf += writepart;
-                totallen -= writepart;
                break;
            }
        }
--- a/fs/vfs/vfs_cmd/vfs_shellcmd.c
+++ b/fs/vfs/vfs_cmd/vfs_shellcmd.c
--- a/fs/vfs/vnode.c
+++ b/fs/vfs/vnode.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2021-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -239,7 +239,7 @@ BOOL VnodeInUseIter(const struct Mount *mount)
    return FALSE;
 }

-int VnodeHold()
+int VnodeHold(void)
 {
    int ret = LOS_MuxLock(&g_vnodeMux, LOS_WAIT_FOREVER);
    if (ret != LOS_OK) {
@@ -248,7 +248,7 @@ int VnodeHold()
    return ret;
 }

-int VnodeDrop()
+int VnodeDrop(void)
 {
    int ret = LOS_MuxUnlock(&g_vnodeMux);
    if (ret != LOS_OK) {
@@ -583,7 +583,7 @@ int VnodeCreate(struct Vnode *parent, const char *name, int mode, struct Vnode *
    return 0;
 }

-int VnodeDevInit()
+int VnodeDevInit(void)
 {
    struct Vnode *devNode = NULL;
    struct Mount *devMount = NULL;
@@ -616,7 +616,7 @@ int VnodeGetattr(struct Vnode *vnode, struct stat *buf)
    return LOS_OK;
 }

-struct Vnode *VnodeGetRoot()
+struct Vnode *VnodeGetRoot(void)
 {
    return g_rootVnode;
 }
@@ -697,7 +697,7 @@ LIST_HEAD* GetVnodeActiveList()
    return &g_vnodeActiveList;
 }

-int VnodeClearCache()
+int VnodeClearCache(void)
 {
    struct Vnode *item = NULL;
    struct Vnode *nextItem = NULL;
--- a/kernel/base/include/los_sem_debug_pri.h
+++ b/kernel/base/include/los_sem_debug_pri.h
@@ -61,11 +61,11 @@ STATIC INLINE VOID OsSemDbgTimeUpdateHook(UINT32 semID)
    return;
 }
 /* Update the SEM_DEBUG_CB of the semaphore when created or deleted */
-extern VOID OsSemDbgUpdate(UINT32 semID, TSK_ENTRY_FUNC creater, UINT16 count);
-STATIC INLINE VOID OsSemDbgUpdateHook(UINT32 semID, TSK_ENTRY_FUNC creater, UINT16 count)
+extern VOID OsSemDbgUpdate(UINT32 semID, TSK_ENTRY_FUNC creator, UINT16 count);
+STATIC INLINE VOID OsSemDbgUpdateHook(UINT32 semID, TSK_ENTRY_FUNC creator, UINT16 count)
 {
 #ifdef LOSCFG_DEBUG_SEMAPHORE
-    OsSemDbgUpdate(semID, creater, count);
+    OsSemDbgUpdate(semID, creator, count);
 #endif
    return;
 }
--- a/kernel/base/include/los_vm_dump.h
+++ b/kernel/base/include/los_vm_dump.h
@@ -70,7 +70,7 @@ VOID OsVmPhysDump(VOID);
 VOID OsVmPhysUsedInfoGet(UINT32 *usedCount, UINT32 *totalCount);
 INT32 OsRegionOverlapCheck(LosVmSpace *space, LosVmMapRegion *region);
 VOID OsDumpPte(VADDR_T vaddr);
-LosProcessCB *OsGetPIDByAspace(LosVmSpace *space);
+LosProcessCB *OsGetPIDByAspace(const LosVmSpace *space);
 CHAR *OsArchFlagsToStr(const UINT32 archFlags);

 #ifdef __cplusplus
--- a/kernel/base/include/los_vm_filemap.h
+++ b/kernel/base/include/los_vm_filemap.h
@@ -193,7 +193,7 @@ VOID OsVmmFileRegionFree(struct file *filep, LosProcessCB *processCB);

 LosFilePage *OsPageCacheAlloc(struct page_mapping *mapping, VM_OFFSET_T pgoff);
 LosFilePage *OsFindGetEntry(struct page_mapping *mapping, VM_OFFSET_T pgoff);
-LosMapInfo *OsGetMapInfo(LosFilePage *page, LosArchMmu *archMmu, VADDR_T vaddr);
+LosMapInfo *OsGetMapInfo(const LosFilePage *page, const LosArchMmu *archMmu, VADDR_T vaddr);
 VOID OsAddMapInfo(LosFilePage *page, LosArchMmu *archMmu, VADDR_T vaddr);
 VOID OsDelMapInfo(LosVmMapRegion *region, LosVmPgFault *pgFault, BOOL cleanDirty);
 VOID OsFileCacheFlush(struct page_mapping *mapping);
@@ -208,7 +208,7 @@ VOID OsDeletePageCacheLru(LosFilePage *page);
 VOID OsPageRefDecNoLock(LosFilePage *page);
 VOID OsPageRefIncLocked(LosFilePage *page);
 int OsTryShrinkMemory(size_t nPage);
-VOID OsMarkPageDirty(LosFilePage *fpage, LosVmMapRegion *region, int off, int len);
+VOID OsMarkPageDirty(LosFilePage *fpage, const LosVmMapRegion *region, int off, int len);

 #ifdef LOSCFG_DEBUG_VERSION
 VOID ResetPageCacheHitInfo(int *try, int *hit);
--- a/kernel/base/ipc/los_queue_debug.c
+++ b/kernel/base/ipc/los_queue_debug.c
@@ -40,7 +40,7 @@
 #ifdef LOSCFG_DEBUG_QUEUE

 typedef struct {
-    TSK_ENTRY_FUNC creater; /* The task entry who created this queue */
+    TSK_ENTRY_FUNC creator; /* The task entry who created this queue */
    UINT64  lastAccessTime; /* The last access time */
 } QueueDebugCB;
 STATIC QueueDebugCB *g_queueDebugArray = NULL;
@@ -74,7 +74,7 @@ VOID OsQueueDbgTimeUpdate(UINT32 queueID)
 VOID OsQueueDbgUpdate(UINT32 queueID, TSK_ENTRY_FUNC entry)
 {
    QueueDebugCB *queueDebug = &g_queueDebugArray[GET_QUEUE_INDEX(queueID)];
-    queueDebug->creater = entry;
+    queueDebug->creator = entry;
    queueDebug->lastAccessTime = LOS_TickCountGet();
    return;
 }
@@ -91,8 +91,8 @@ STATIC INLINE VOID OsQueueInfoOutPut(const LosQueueCB *node)

 STATIC INLINE VOID OsQueueOpsOutput(const QueueDebugCB *node)
 {
-    PRINTK("TaskEntry of creater:0x%p, Latest operation time: 0x%llx\n",
-           node->creater, node->lastAccessTime);
+    PRINTK("TaskEntry of creator:0x%p, Latest operation time: 0x%llx\n",
+           node->creator, node->lastAccessTime);
 }

 STATIC VOID SortQueueIndexArray(UINT32 *indexArray, UINT32 count)
@@ -149,7 +149,7 @@ VOID OsQueueCheck(VOID)
                       &g_queueDebugArray[index], sizeof(QueueDebugCB));
        SCHEDULER_UNLOCK(intSave);
        if ((queueNode.queueState == OS_QUEUE_UNUSED) ||
-            ((queueNode.queueState == OS_QUEUE_INUSED) && (queueDebugNode.creater == NULL))) {
+            ((queueNode.queueState == OS_QUEUE_INUSED) && (queueDebugNode.creator == NULL))) {
            continue;
        }
        if ((queueNode.queueState == OS_QUEUE_INUSED) &&
--- a/kernel/base/ipc/los_rwlock.c
+++ b/kernel/base/ipc/los_rwlock.c
@@ -96,7 +96,7 @@ UINT32 LOS_RwlockDestroy(LosRwlock *rwlock)
    return LOS_OK;
 }

-STATIC UINT32 OsRwlockCheck(LosRwlock *rwlock)
+STATIC UINT32 OsRwlockCheck(const LosRwlock *rwlock)
 {
    if (rwlock == NULL) {
        return LOS_EINVAL;
--- a/kernel/base/ipc/los_sem_debug.c
+++ b/kernel/base/ipc/los_sem_debug.c
@@ -80,7 +80,7 @@ STATIC VOID OsSemPendedTaskNamePrint(LosSemCB *semNode)
 typedef struct {
    UINT16  origSemCount;   /* Number of original available semaphores */
    UINT64  lastAccessTime; /* The last operation time */
-    TSK_ENTRY_FUNC creater; /* The task entry who created this sem */
+    TSK_ENTRY_FUNC creator; /* The task entry who created this sem */
 } SemDebugCB;
 STATIC SemDebugCB *g_semDebugArray = NULL;

@@ -110,10 +110,10 @@ VOID OsSemDbgTimeUpdate(UINT32 semID)
    return;
 }

-VOID OsSemDbgUpdate(UINT32 semID, TSK_ENTRY_FUNC creater, UINT16 count)
+VOID OsSemDbgUpdate(UINT32 semID, TSK_ENTRY_FUNC creator, UINT16 count)
 {
    SemDebugCB *semDebug = &g_semDebugArray[GET_SEM_INDEX(semID)];
-    semDebug->creater = creater;
+    semDebug->creator = creator;
    semDebug->lastAccessTime = LOS_TickCountGet();
    semDebug->origSemCount = count;
    return;
@@ -133,7 +133,7 @@ STATIC VOID OsSemSort(UINT32 *semIndexArray, UINT32 usedCount)

    /* It will Print out ALL the Used Semaphore List. */
    PRINTK("Used Semaphore List: \n");
-    PRINTK("\r\n   SemID    Count    OriginalCount   Creater(TaskEntry)    LastAccessTime\n");
+    PRINTK("\r\n   SemID    Count    OriginalCount   Creator(TaskEntry)    LastAccessTime\n");
    PRINTK("   ------   ------   -------------   ------------------    --------------   \n");

    SCHEDULER_LOCK(intSave);
@@ -145,11 +145,11 @@ STATIC VOID OsSemSort(UINT32 *semIndexArray, UINT32 usedCount)
        (VOID)memcpy_s(&semNode, sizeof(LosSemCB), semCB, sizeof(LosSemCB));
        (VOID)memcpy_s(&semDebug, sizeof(SemDebugCB), &g_semDebugArray[semIndexArray[i]], sizeof(SemDebugCB));
        SCHEDULER_UNLOCK(intSave);
-        if ((semNode.semStat != OS_SEM_USED) || (semDebug.creater == NULL)) {
+        if ((semNode.semStat != OS_SEM_USED) || (semDebug.creator == NULL)) {
            continue;
        }
        PRINTK("   0x%-07x0x%-07u0x%-14u%-22p0x%llx\n", semNode.semID, semDebug.origSemCount,
-               semNode.semCount, semDebug.creater, semDebug.lastAccessTime);
+               semNode.semCount, semDebug.creator, semDebug.lastAccessTime);
        if (!LOS_ListEmpty(&semNode.semList)) {
            OsSemPendedTaskNamePrint(semCB);
        }
@@ -170,7 +170,7 @@ UINT32 OsSemInfoGetFullData(VOID)
    for (i = 0; i < LOSCFG_BASE_IPC_SEM_LIMIT; i++) {
        semNode = GET_SEM(i);
        semDebug = &g_semDebugArray[i];
-        if ((semNode->semStat == OS_SEM_USED) && (semDebug->creater != NULL)) {
+        if ((semNode->semStat == OS_SEM_USED) && (semDebug->creator != NULL)) {
            usedSemCnt++;
        }
    }
@@ -190,7 +190,7 @@ UINT32 OsSemInfoGetFullData(VOID)
        for (i = 0; i < LOSCFG_BASE_IPC_SEM_LIMIT; i++) {
            semNode = GET_SEM(i);
            semDebug = &g_semDebugArray[i];
-            if ((semNode->semStat != OS_SEM_USED) || (semDebug->creater == NULL)) {
+            if ((semNode->semStat != OS_SEM_USED) || (semDebug->creator == NULL)) {
                continue;
            }
            *(semIndexArray + count) = i;
--- a/kernel/base/ipc/los_signal.c
+++ b/kernel/base/ipc/los_signal.c
@@ -78,7 +78,6 @@ STATIC VOID OsMoveTmpInfoToUnbInfo(sig_cb *sigcb, INT32 signo)
            /* delete tmpinfo from tmpList. */
            *prevHook = tmpInfoNode->next;
            (VOID)LOS_MemFree(m_aucSysMem0, tmpInfoNode);
-            tmpInfoNode = *prevHook;
            break;
        }
        prevHook = &tmpInfoNode->next;
--- a/kernel/base/mem/tlsf/los_memory.c
+++ b/kernel/base/mem/tlsf/los_memory.c
@@ -498,7 +498,7 @@ STATIC INLINE VOID OsLmsReallocMergeNodeMark(struct OsMemNodeHead *node)
    }

    g_lms->simpleMark((UINTPTR)node + OS_MEM_NODE_HEAD_SIZE, (UINTPTR)OS_MEM_NEXT_NODE(node),
-        LMS_SHADOW_ACCESSABLE_U8);
+        LMS_SHADOW_ACCESSIBLE_U8);
 }

 STATIC INLINE VOID OsLmsReallocSplitNodeMark(struct OsMemNodeHead *node)
@@ -918,7 +918,7 @@ STATIC UINT32 OsMemPoolAdd(VOID *pool, UINT32 size)
    return LOS_OK;
 }

-STATIC UINT32 OsMemPoolDelete(VOID *pool)
+STATIC UINT32 OsMemPoolDelete(const VOID *pool)
 {
    UINT32 ret = LOS_NOK;
    VOID *nextPool = NULL;
--- a/kernel/base/mp/los_lockdep.c
+++ b/kernel/base/mp/los_lockdep.c
@@ -271,7 +271,7 @@ VOID OsLockDepCheckOut(SPIN_LOCK_S *lock)
 {
    UINT32 intSave;
    INT32 depth;
-    enum LockDepErrType checkResult = LOCKDEP_SUCCESS;
+    enum LockDepErrType checkResult;
    VOID *requestAddr = (VOID *)__builtin_return_address(1);
    LosTaskCB *current = OsCurrTaskGet();
    LosTaskCB *owner = NULL;
--- a/kernel/base/vm/los_vm_dump.c
+++ b/kernel/base/vm/los_vm_dump.c
@@ -146,7 +146,6 @@ UINT32 OsKProcessPmUsage(LosVmSpace *kSpace, UINT32 *actualPm)
    LosVmSpace *space = NULL;
    LOS_DL_LIST *spaceList = NULL;
    UINT32 UProcessUsed = 0;
-    UINT32 pmTmp;

    if (actualPm == NULL) {
        return 0;
@@ -167,8 +166,7 @@ UINT32 OsKProcessPmUsage(LosVmSpace *kSpace, UINT32 *actualPm)
        if (space == LOS_GetKVmSpace()) {
            continue;
        }
-        (VOID)OsUProcessPmUsage(space, NULL, &pmTmp);
-        UProcessUsed += pmTmp;
+        UProcessUsed += OsUProcessPmUsage(space, NULL, NULL);
    }
    (VOID)LOS_MuxRelease(vmSpaceListMux);

@@ -208,15 +206,12 @@ UINT32 OsUProcessPmUsage(LosVmSpace *space, UINT32 *sharePm, UINT32 *actualPm)
    PADDR_T paddr;
    STATUS_T ret;
    INT32 shareRef;
+    UINT32 pmSize = 0;

    if (sharePm != NULL) {
        *sharePm = 0;
    }

-    if (actualPm != NULL) {
-        *actualPm = 0;
-    }
-
    ret = LOS_MuxAcquire(&space->regionMux);
    if (ret != 0) {
        return 0;
@@ -240,22 +235,23 @@ UINT32 OsUProcessPmUsage(LosVmSpace *space, UINT32 *sharePm, UINT32 *actualPm)
                if (sharePm != NULL) {
                    *sharePm += PAGE_SIZE;
                }
-                if (actualPm != NULL) {
-                    *actualPm += PAGE_SIZE / shareRef;
-                }
+                pmSize += PAGE_SIZE / shareRef;
            } else {
-                if (actualPm != NULL) {
-                    *actualPm += PAGE_SIZE;
-                }
+                pmSize += PAGE_SIZE;
            }
        }
    RB_SCAN_SAFE_END(&oldVmSpace->regionRbTree, pstRbNode, pstRbNodeNext)

    (VOID)LOS_MuxRelease(&space->regionMux);
-    return *actualPm;
+
+    if (actualPm != NULL) {
+        *actualPm = pmSize;
+    }
+
+    return pmSize;
 }

-LosProcessCB *OsGetPIDByAspace(LosVmSpace *space)
+LosProcessCB *OsGetPIDByAspace(const LosVmSpace *space)
 {
    UINT32 pid;
    UINT32 intSave;
@@ -305,7 +301,7 @@ UINT32 OsCountRegionPages(LosVmSpace *space, LosVmMapRegion *region, UINT32 *pss
    }

    if (pssPages != NULL) {
-        *pssPages = (UINT32)(pss + 0.5);
+        *pssPages = (UINT32)(pss + 0.5);    /* 0.5, for page alignment */
    }

    return regionPages;
--- a/kernel/base/vm/los_vm_filemap.c
+++ b/kernel/base/vm/los_vm_filemap.c
@@ -125,10 +125,10 @@ VOID OsAddMapInfo(LosFilePage *page, LosArchMmu *archMmu, VADDR_T vaddr)
    page->n_maps++;
 }

-LosMapInfo *OsGetMapInfo(LosFilePage *page, LosArchMmu *archMmu, VADDR_T vaddr)
+LosMapInfo *OsGetMapInfo(const LosFilePage *page, const LosArchMmu *archMmu, VADDR_T vaddr)
 {
    LosMapInfo *info = NULL;
-    LOS_DL_LIST *immap = &page->i_mmap;
+    const LOS_DL_LIST *immap = &page->i_mmap;

    LOS_DL_LIST_FOR_EACH_ENTRY(info, immap, LosMapInfo, node) {
        if ((info->archMmu == archMmu) && (info->vaddr == vaddr) && (info->page == page)) {
@@ -214,7 +214,7 @@ VOID OsVmmFileRemove(LosVmMapRegion *region, LosArchMmu *archMmu, VM_OFFSET_T pg
    return;
 }

-VOID OsMarkPageDirty(LosFilePage *fpage, LosVmMapRegion *region, INT32 off, INT32 len)
+VOID OsMarkPageDirty(LosFilePage *fpage, const LosVmMapRegion *region, INT32 off, INT32 len)
 {
    if (region != NULL) {
        OsSetPageDirty(fpage->vmPage);
--- a/kernel/base/vm/los_vm_map.c
+++ b/kernel/base/vm/los_vm_map.c
@@ -233,7 +233,7 @@ LosVmSpace *OsCreateUserVmSpace(VOID)
    return space;
 }

-STATIC BOOL OsVmSpaceParamCheck(LosVmSpace *vmSpace)
+STATIC BOOL OsVmSpaceParamCheck(const LosVmSpace *vmSpace)
 {
    if (vmSpace == NULL) {
        return FALSE;
--- a/kernel/base/vm/los_vm_scan.c
+++ b/kernel/base/vm/los_vm_scan.c
@@ -297,7 +297,7 @@ int OsTryShrinkMemory(size_t nPage)
    LosFilePage *fpage = NULL;
    LosFilePage *fnext = NULL;

-    if (nPage <= 0) {
+    if (nPage == 0) {
        nPage = VM_FILEMAP_MIN_SCAN;
    }

--- a/kernel/base/vm/los_vm_syscall.c
+++ b/kernel/base/vm/los_vm_syscall.c
@@ -166,7 +166,7 @@ MMAP_DONE:

 STATUS_T LOS_UnMMap(VADDR_T addr, size_t size)
 {
-    if ((addr <= 0) || (size <= 0)) {
+    if ((addr <= 0) || (size == 0)) {
        return -EINVAL;
    }

--- a/kernel/base/vm/shm.c
+++ b/kernel/base/vm/shm.c
@@ -604,7 +604,7 @@ INT32 ShmCtl(INT32 shmid, INT32 cmd, struct shmid_ds *buf)
 {
    struct shmIDSource *seg = NULL;
    INT32 ret = 0;
-    struct shm_info shmInfo;
+    struct shm_info shmInfo = { 0 };
    struct ipc_perm shm_perm;

    cmd = ((UINT32)cmd & ~IPC_64);
--- a/kernel/common/console.c
+++ b/kernel/common/console.c
@@ -404,7 +404,7 @@ STATIC VOID EchoToTerminal(CONSOLE_CB *consoleCB, struct file *filep, const stru
 {
    if (consoleCB->consoleTermios.c_lflag & ECHO) {
        if (ch == '\b') {
-            (VOID)fops->write(filep, "\b \b", 3);
+            (VOID)fops->write(filep, "\b \b", 3); // 3: length of "\b \b"
        } else {
            (VOID)fops->write(filep, &ch, EACH_CHAR);
        }
@@ -709,7 +709,6 @@ STATIC ssize_t DoWrite(CirBufSendCB *cirBufSendCB, CHAR *buffer, size_t bufLen)
 {
    INT32 cnt;
    size_t written = 0;
-    size_t toWrite = bufLen;
    UINT32 intSave;

 #ifdef LOSCFG_SHELL_DMESG
@@ -730,7 +729,6 @@ STATIC ssize_t DoWrite(CirBufSendCB *cirBufSendCB, CHAR *buffer, size_t bufLen)
        if (cnt <= 0) {
            break;
        }
-        toWrite -= cnt;
        written += cnt;
    }
    LOS_SpinUnlockRestore(&g_consoleWriteSpinLock, intSave);
@@ -1536,7 +1534,15 @@ STATIC ssize_t WriteToTerminal(const CONSOLE_CB *consoleCB, const CHAR *buffer,

    fd = consoleCB->fd;
    ret = fs_getfilep(fd, &filep);
+    if (ret < 0) {
+        ret = -EPERM;
+        goto ERROUT;
+    }
    ret = GetFilepOps(filep, &privFilep, &fileOps);
+    if (ret != ENOERR) {
+        ret = -EINVAL;
+        goto ERROUT;
+    }

    if ((fileOps == NULL) || (fileOps->write == NULL)) {
        ret = EFAULT;
--- a/kernel/common/los_init.c
+++ b/kernel/common/los_init.c
@@ -87,7 +87,6 @@ STATIC VOID InitLevelCall(const CHAR *name, const UINT32 level, struct ModuleIni
        LOS_SpinUnlock(&g_initLock);
        if (module->hook != NULL) {
 #ifdef LOS_INIT_DEBUG
-            ret = LOS_OK;
            startNsec = LOS_CurrNanosec();
            ret = (UINT32)module->hook();
            endNsec = LOS_CurrNanosec();
--- a/kernel/extended/dynload/src/los_load_elf.c
+++ b/kernel/extended/dynload/src/los_load_elf.c
@@ -51,7 +51,7 @@ STATIC BOOL g_srandInit;

 STATIC INT32 OsELFOpen(const CHAR *fileName, INT32 oflags)
 {
-    INT32 ret = -LOS_NOK;
+    INT32 ret;
    INT32 procFd;

    procFd = AllocProcessFd();
--- a/kernel/extended/hilog/los_hilog.c
+++ b/kernel/extended/hilog/los_hilog.c
@@ -233,14 +233,8 @@ static int HiLogWriteRingBuffer(unsigned char *buffer, size_t bufLen)

 static void HiLogHeadInit(struct HiLogEntry *header, size_t len)
 {
-    struct timespec now;
-    int ret;
-
-    ret = clock_gettime(CLOCK_REALTIME, &now);
-    if (ret != 0) {
-        PRINTK("In %s line %d,clock_gettime fail\n", __FUNCTION__, __LINE__);
-        return;
-    }
+    struct timespec now = {0};
+    (void)clock_gettime(CLOCK_REALTIME, &now);

    header->len = len;
    header->pid = LOS_GetCurrProcessID();
--- a/kernel/extended/lms/los_lms.c
+++ b/kernel/extended/lms/los_lms.c
@@ -326,7 +326,7 @@ VOID OsLmsLosMallocMark(const VOID *curNodeStart, const VOID *nextNodeStart, UIN
    }

    OsLmsSetShadowValue(node, curNodeStartAddr, curNodeStartAddr + nodeHeadSize, LMS_SHADOW_REDZONE_U8);
-    OsLmsSetShadowValue(node, curNodeStartAddr + nodeHeadSize, nextNodeStartAddr, LMS_SHADOW_ACCESSABLE_U8);
+    OsLmsSetShadowValue(node, curNodeStartAddr + nodeHeadSize, nextNodeStartAddr, LMS_SHADOW_ACCESSIBLE_U8);
    OsLmsSetShadowValue(node, nextNodeStartAddr, nextNodeStartAddr + nodeHeadSize, LMS_SHADOW_REDZONE_U8);
    LMS_UNLOCK(intSave);
 }
@@ -344,7 +344,7 @@ VOID OsLmsCheckValid(UINTPTR checkAddr, BOOL isFreeCheck)

    OsLmsGetShadowValue(node, checkAddr, &shadowValue);
    LMS_UNLOCK(intSave);
-    if ((shadowValue == LMS_SHADOW_ACCESSABLE) || ((isFreeCheck) && (shadowValue == LMS_SHADOW_PAINT))) {
+    if ((shadowValue == LMS_SHADOW_ACCESSIBLE) || ((isFreeCheck) && (shadowValue == LMS_SHADOW_PAINT))) {
        return;
    }

@@ -367,7 +367,7 @@ VOID OsLmsLosFreeMark(const VOID *curNodeStart, const VOID *nextNodeStart, UINT3
    UINTPTR nextNodeStartAddr = (UINTPTR)nextNodeStart;

    OsLmsGetShadowValue(node, curNodeStartAddr + nodeHeadSize, &shadowValue);
-    if ((shadowValue != LMS_SHADOW_ACCESSABLE) && (shadowValue != LMS_SHADOW_PAINT)) {
+    if ((shadowValue != LMS_SHADOW_ACCESSIBLE) && (shadowValue != LMS_SHADOW_PAINT)) {
        LMS_UNLOCK(intSave);
        OsLmsReportError(curNodeStartAddr + nodeHeadSize, MEM_REGION_SIZE_1, FREE_ERRORMODE);
        return;
@@ -408,7 +408,7 @@ VOID LOS_LmsAddrDisableProtect(UINTPTR addrStart, UINTPTR addrEnd)
    LMS_LOCK(intSave);
    LmsMemListNode *node = OsLmsGetPoolNodeFromAddr(addrStart);
    if (node != NULL) {
-        OsLmsSetShadowValue(node, addrStart, addrEnd, LMS_SHADOW_ACCESSABLE_U8);
+        OsLmsSetShadowValue(node, addrStart, addrEnd, LMS_SHADOW_ACCESSIBLE_U8);
    }
    LMS_UNLOCK(intSave);
 }
@@ -426,7 +426,7 @@ STATIC UINT32 OsLmsCheckAddr(UINTPTR addr)
    LmsMemListNode *node = OsLmsGetPoolNodeFromAddr(addr);
    if (node == NULL) {
        LMS_UNLOCK(intSave);
-        return LMS_SHADOW_ACCESSABLE_U8;
+        return LMS_SHADOW_ACCESSIBLE_U8;
    }

    OsLmsGetShadowValue(node, addr, &shadowValue);
@@ -542,7 +542,7 @@ STATIC VOID OsLmsGetErrorInfo(UINTPTR addr, UINT32 size, LmsAddrInfo *info)
 {
    LmsMemListNode *node = OsLmsGetPoolNodeFromAddr(addr);
    OsLmsGetShadowInfo(node, addr, info);
-    if (info->shadowValue != LMS_SHADOW_ACCESSABLE_U8) {
+    if (info->shadowValue != LMS_SHADOW_ACCESSIBLE_U8) {
        return;
    } else {
        OsLmsGetShadowInfo(node, addr + size - 1, info);
@@ -558,7 +558,7 @@ STATIC VOID OsLmsPrintErrInfo(LmsAddrInfo *info, UINT32 errMod)
        case LMS_SHADOW_REDZONE:
            PRINT_ERR("Heap buffer overflow error detected\n");
            break;
-        case LMS_SHADOW_ACCESSABLE:
+        case LMS_SHADOW_ACCESSIBLE:
            PRINT_ERR("No error\n");
            break;
        default:
@@ -614,7 +614,7 @@ VOID OsLmsReportError(UINTPTR p, UINT32 size, UINT32 errMod)
 #ifdef LOSCFG_LMS_STORE_CHECK
 VOID __asan_store1_noabort(UINTPTR p)
 {
-    if (OsLmsCheckAddr(p) != LMS_SHADOW_ACCESSABLE_U8) {
+    if (OsLmsCheckAddr(p) != LMS_SHADOW_ACCESSIBLE_U8) {
        OsLmsReportError(p, MEM_REGION_SIZE_1, STORE_ERRMODE);
    }
 }
@@ -690,7 +690,7 @@ VOID __asan_storeN_noabort(UINTPTR p, UINT32 size)
 #ifdef LOSCFG_LMS_LOAD_CHECK
 VOID __asan_load1_noabort(UINTPTR p)
 {
-    if (OsLmsCheckAddr(p) != LMS_SHADOW_ACCESSABLE_U8) {
+    if (OsLmsCheckAddr(p) != LMS_SHADOW_ACCESSIBLE_U8) {
        OsLmsReportError(p, MEM_REGION_SIZE_1, LOAD_ERRMODE);
    }
 }
--- a/kernel/extended/lms/los_lms_pri.h
+++ b/kernel/extended/lms/los_lms_pri.h
@@ -59,13 +59,13 @@ extern "C" {
 #define LMS_POOL_RESIZE(size)          ((size) / (LMS_SHADOW_U8_REFER_BYTES + 1) * LMS_SHADOW_U8_REFER_BYTES)
 #define LMS_ADDR_ALIGN(p)              (((UINTPTR)(p) + sizeof(UINTPTR) - 1) & ~((UINTPTR)(sizeof(UINTPTR) - 1)))

-#define LMS_SHADOW_ACCESSABLE          0x00
+#define LMS_SHADOW_ACCESSIBLE          0x00
 #define LMS_SHADOW_AFTERFREE           0x03
 #define LMS_SHADOW_REDZONE             0x02
 #define LMS_SHADOW_PAINT               0x01
 #define LMS_SHADOW_MASK                0x03

-#define LMS_SHADOW_ACCESSABLE_U8       0x00
+#define LMS_SHADOW_ACCESSIBLE_U8       0x00
 #define LMS_SHADOW_AFTERFREE_U8        0xFF
 #define LMS_SHADOW_REDZONE_U8          0xAA
 #define LMS_SHADOW_MASK_U8             0xFF
--- a/kernel/extended/lms/usr/los_lms.c
+++ b/kernel/extended/lms/usr/los_lms.c
@@ -124,8 +124,8 @@ ATTRIBUTE_NO_SANITIZE_ADDRESS void LmsSetShadowValue(uintptr_t startAddr, uintpt
    uint32_t startOffset;
    uint32_t endOffset;

-    char shadowValueMask;
-    char shadowValue;
+    unsigned char shadowValueMask;
+    unsigned char shadowValue;

    /* endAddr - 1, then we mark [startAddr, endAddr) to value */
    LmsMem2Shadow(startAddr, &shadowStart, &startOffset);
@@ -174,7 +174,7 @@ ATTRIBUTE_NO_SANITIZE_ADDRESS void LmsGetShadowValue(uintptr_t addr, uint32_t *s
    LmsMem2Shadow(addr, &shadowAddr, &shadowOffset);
    /* If the shadow addr is not mapped then regarded as legal access */
    if (LmsIsShadowAddrMapped(shadowAddr, shadowAddr) != LMS_OK) {
-        *shadowValue = LMS_SHADOW_ACCESSABLE_U8;
+        *shadowValue = LMS_SHADOW_ACCESSIBLE_U8;
        return;
    }

@@ -185,7 +185,7 @@ ATTRIBUTE_NO_SANITIZE_ADDRESS void LmsMallocMark(uintptr_t preRzStart, uintptr_t
    uintptr_t RzEndAddr)
 {
    LmsSetShadowValue(preRzStart, accessMemStart, LMS_SHADOW_REDZONE_U8);
-    LmsSetShadowValue(accessMemStart, nextRzStart, LMS_SHADOW_ACCESSABLE_U8);
+    LmsSetShadowValue(accessMemStart, nextRzStart, LMS_SHADOW_ACCESSIBLE_U8);
    LmsSetShadowValue(nextRzStart, RzEndAddr, LMS_SHADOW_REDZONE_U8);
 }

@@ -266,7 +266,7 @@ ATTRIBUTE_NO_SANITIZE_ADDRESS void LmsPrintMemInfo(uintptr_t addr)
            }
        }

-        LMS_OUTPUT_INFO("|\t[0x%x | %2d]: ", shadowAddr, shadowOffset);
+        LMS_OUTPUT_INFO("|\t[0x%x | %2u]: ", shadowAddr, shadowOffset);

        for (int x = 0; x < printX; x += LMS_MEM_BYTES_PER_SHADOW_CELL) {
            LmsGetShadowValue(dumpAddr + x, &shadowValue);
@@ -300,7 +300,7 @@ ATTRIBUTE_NO_SANITIZE_ADDRESS static inline void LmsGetShadowInfo(uintptr_t memA
 ATTRIBUTE_NO_SANITIZE_ADDRESS static void LmsGetErrorInfo(uintptr_t addr, size_t size, LmsAddrInfo *info)
 {
    LmsGetShadowInfo(addr, info);
-    if (info->shadowValue != LMS_SHADOW_ACCESSABLE_U8) {
+    if (info->shadowValue != LMS_SHADOW_ACCESSIBLE_U8) {
        return;
    } else {
        LmsGetShadowInfo(addr + size - 1, info);
@@ -316,7 +316,7 @@ ATTRIBUTE_NO_SANITIZE_ADDRESS static void LmsPrintErrInfo(LmsAddrInfo *info, uin
        case LMS_SHADOW_REDZONE:
            LMS_OUTPUT_ERROR("Heap buffer overflow error detected!\n");
            break;
-        case LMS_SHADOW_ACCESSABLE:
+        case LMS_SHADOW_ACCESSIBLE:
            LMS_OUTPUT_ERROR("No error!\n");
            break;
        default:
@@ -339,11 +339,11 @@ ATTRIBUTE_NO_SANITIZE_ADDRESS static void LmsPrintErrInfo(LmsAddrInfo *info, uin
            break;
    }

-    LMS_OUTPUT_INFO("Shadow memory address: [0x%x : %d]  Shadow memory value: [%d] \n", info->shadowAddr,
+    LMS_OUTPUT_INFO("Shadow memory address: [0x%x : %u]  Shadow memory value: [%u] \n", info->shadowAddr,
        info->shadowOffset, info->shadowValue);

    LMS_OUTPUT_INFO("\n");
-    LMS_OUTPUT_INFO("%-25s%d\n", "Accessable heap addr", LMS_SHADOW_ACCESSABLE);
+    LMS_OUTPUT_INFO("%-25s%d\n", "Accessible heap addr", LMS_SHADOW_ACCESSIBLE);
    LMS_OUTPUT_INFO("%-25s%d\n", "Heap red zone", LMS_SHADOW_REDZONE);
    LMS_OUTPUT_INFO("%-25s%d\n", "Heap freed buffer", LMS_SHADOW_AFTERFREE);
    LMS_OUTPUT_INFO("\n");
@@ -373,23 +373,23 @@ ATTRIBUTE_NO_SANITIZE_ADDRESS void LmsReportError(uintptr_t p, size_t size, uint

 void LmsCheckValid(const char *dest, const char *src)
 {
-    if (LmsCheckAddr((uintptr_t)dest) != LMS_SHADOW_ACCESSABLE_U8) {
+    if (LmsCheckAddr((uintptr_t)dest) != LMS_SHADOW_ACCESSIBLE_U8) {
        LmsReportError((uintptr_t)dest, MEM_REGION_SIZE_1, STORE_ERRMODE);
        return;
    }

-    if (LmsCheckAddr((uintptr_t)src) != LMS_SHADOW_ACCESSABLE_U8) {
+    if (LmsCheckAddr((uintptr_t)src) != LMS_SHADOW_ACCESSIBLE_U8) {
        LmsReportError((uintptr_t)src, MEM_REGION_SIZE_1, LOAD_ERRMODE);
        return;
    }

    for (uint32_t i = 0; *(src + i) != '\0'; i++) {
-        if (LmsCheckAddr((uintptr_t)dest + i + 1) != LMS_SHADOW_ACCESSABLE_U8) {
+        if (LmsCheckAddr((uintptr_t)dest + i + 1) != LMS_SHADOW_ACCESSIBLE_U8) {
            LmsReportError((uintptr_t)dest + i + 1, MEM_REGION_SIZE_1, STORE_ERRMODE);
            return;
        }

-        if (LmsCheckAddr((uintptr_t)src + i + 1) != LMS_SHADOW_ACCESSABLE_U8) {
+        if (LmsCheckAddr((uintptr_t)src + i + 1) != LMS_SHADOW_ACCESSIBLE_U8) {
            LmsReportError((uintptr_t)src + i + 1, MEM_REGION_SIZE_1, LOAD_ERRMODE);
            return;
        }
@@ -398,7 +398,7 @@ void LmsCheckValid(const char *dest, const char *src)

 void __asan_store1_noabort(uintptr_t p)
 {
-    if (LmsCheckAddr(p) != LMS_SHADOW_ACCESSABLE_U8) {
+    if (LmsCheckAddr(p) != LMS_SHADOW_ACCESSIBLE_U8) {
        LmsReportError(p, MEM_REGION_SIZE_1, STORE_ERRMODE);
    }
 }
@@ -440,7 +440,7 @@ void __asan_storeN_noabort(uintptr_t p, size_t size)

 void __asan_load1_noabort(uintptr_t p)
 {
-    if (LmsCheckAddr(p) != LMS_SHADOW_ACCESSABLE_U8) {
+    if (LmsCheckAddr(p) != LMS_SHADOW_ACCESSIBLE_U8) {
        LmsReportError(p, MEM_REGION_SIZE_1, LOAD_ERRMODE);
    }
 }
--- a/kernel/extended/lms/usr/los_lms_pri.h
+++ b/kernel/extended/lms/usr/los_lms_pri.h
@@ -50,7 +50,7 @@ extern "C" {
 #define SANITIZER_INTERFACE_ATTRIBUTE
 #define ATTRIBUTE_NO_SANITIZE_ADDRESS   __attribute__((no_sanitize_address))

-#define LMS_SHADOW_ACCESSABLE           0x00
+#define LMS_SHADOW_ACCESSIBLE           0x00
 #define LMS_SHADOW_AFTERFREE            0x03
 #define LMS_SHADOW_REDZONE              0x02
 #define LMS_SHADOW_PAINT                0x01
@@ -61,7 +61,7 @@ extern "C" {
 #define LMS_SHADOW_U8_CELL_NUM          4
 #define LMS_SHADOW_U8_REFER_BYTES       16

-#define LMS_SHADOW_ACCESSABLE_U8        0x00
+#define LMS_SHADOW_ACCESSIBLE_U8        0x00
 #define LMS_SHADOW_AFTERFREE_U8         0xFF
 #define LMS_SHADOW_REDZONE_U8           0xAA
 #define LMS_SHADOW_MASK_U8              0xFF
--- a/kernel/extended/lms/usr/los_lmslibc.c
+++ b/kernel/extended/lms/usr/los_lmslibc.c
@@ -45,7 +45,7 @@ ATTRIBUTE_NO_SANITIZE_ADDRESS void LmsFree(void *ptr)
    if (LmsIsShadowAddrMapped(shadowAddr, shadowAddr) == LMS_OK) {
        uint32_t acShadowValue;
        LmsGetShadowValue((uintptr_t)ptr, &acShadowValue);
-        if (acShadowValue != LMS_SHADOW_ACCESSABLE) {
+        if (acShadowValue != LMS_SHADOW_ACCESSIBLE) {
            char erroMode = (acShadowValue == LMS_SHADOW_AFTERFREE ? FREE_ERRORMODE : UNKNOWN_ERROR);
            LmsReportError((uintptr_t)ptr, MEM_REGION_SIZE_1, erroMode);
            goto UNLOCK_OUT;
--- a/kernel/extended/perf/los_perf.c
+++ b/kernel/extended/perf/los_perf.c
@@ -289,7 +289,7 @@ STATIC UINT32 OsPerfCollectData(Event *event, PerfSampleData *data, PerfRegs *re
 * return TRUE if user haven't specified any taskId(which is supposed
 * to instrument the whole system)
 */
-STATIC INLINE BOOL OsFilterId(UINT32 id, UINT32 *ids, UINT8 idsNr)
+STATIC INLINE BOOL OsFilterId(UINT32 id, const UINT32 *ids, UINT8 idsNr)
 {
    UINT32 i;
    if (!idsNr) {
--- a/kernel/extended/power/los_pm.c
+++ b/kernel/extended/power/los_pm.c
@@ -300,7 +300,7 @@ UINT32 LOS_PmRegister(LOS_PmNodeType type, VOID *node)
    return LOS_EINVAL;
 }

-STATIC UINT32 OsPmDeviceUnregister(LosPmCB *pm, LosPmDevice *device)
+STATIC UINT32 OsPmDeviceUnregister(LosPmCB *pm, const LosPmDevice *device)
 {
    LOS_SpinLock(&g_pmSpin);
    if (pm->device == device) {
--- a/kernel/include/los_rwlock.h
+++ b/kernel/include/los_rwlock.h
@@ -1,6 +1,6 @@
 /*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -50,8 +50,8 @@ extern "C" {
 * Rwlock object.
 */
 typedef struct OsRwlock {
-    INT32 magic:24;        /**< Magic number */
-    INT32 rwCount:8;       /**< Times of locking the rwlock, rwCount > 0 when rwkick is read mode, rwCount < 0
+    INT32 magic : 24;        /**< Magic number */
+    INT32 rwCount : 8;       /**< Times of locking the rwlock, rwCount > 0 when rwkick is read mode, rwCount < 0
                                when the rwlock is write mode, rwCount = 0 when the lock is free. */
    VOID *writeOwner;      /**< The current write thread that is locking the rwlock */
    LOS_DL_LIST readList;  /**< Read waiting list */
--- a/net/lwip-2.1/enhancement/include/lwip/fixme.h
+++ b/net/lwip-2.1/enhancement/include/lwip/fixme.h
@@ -1,6 +1,6 @@
 /*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -58,7 +58,7 @@

 #define ip_addr_set_val(dest, src)  do { \
                                        IP_SET_TYPE_VAL(*dest, IP_GET_TYPE(src)); \
-                                        if(IP_IS_V6_VAL(*(src))) { \
+                                        if (IP_IS_V6_VAL(*(src))) { \
                                            ip6_addr_set(ip_2_ip6(dest), ip_2_ip6(src)); \
                                        } else { \
                                            ip4_addr_set(ip_2_ip4(dest), ip_2_ip4(src)); \
--- a/net/lwip-2.1/enhancement/src/api_shell.c
+++ b/net/lwip-2.1/enhancement/src/api_shell.c
@@ -1,6 +1,6 @@
 /*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -342,7 +342,7 @@ int print_netif(struct netif *netif, char *print_buf, unsigned int buf_len)
    buf_len -= (unsigned int)ret;

    ret = snprintf_s(tmp, buf_len, (buf_len - 1), " MTU:%d %s", netif->mtu,
-                     netif->flags & NETIF_FLAG_UP ? "Running" : "Stop");
+                     (netif->flags & NETIF_FLAG_UP) ? "Running" : "Stop");
    if ((ret <= 0) || ((unsigned int)ret >= buf_len))
        goto out;
    tmp += ret;
@@ -356,7 +356,8 @@ int print_netif(struct netif *netif, char *print_buf, unsigned int buf_len)
        buf_len -= (unsigned int)ret;
    }

-    ret = snprintf_s(tmp, buf_len, (buf_len - 1), " %s\n", netif->flags & NETIF_FLAG_LINK_UP ? "Link UP" : "Link Down");
+    ret = snprintf_s(tmp, buf_len, (buf_len - 1), " %s\n",
+                     (netif->flags & NETIF_FLAG_LINK_UP) ? "Link UP" : "Link Down");
    if ((ret <= 0) || ((unsigned int)ret >= buf_len))
        goto out;
    tmp += ret;
@@ -365,19 +366,19 @@ int print_netif(struct netif *netif, char *print_buf, unsigned int buf_len)
    ret = snprintf_s(tmp, buf_len, (buf_len - 1), "\tRX packets:%u ",
                     netif->mib2_counters.ifinucastpkts + netif->mib2_counters.ifinnucastpkts);
    if ((ret <= 0) || ((unsigned int)ret >= buf_len))
-      goto out;
+        goto out;
    tmp += ret;
    buf_len -= (unsigned int)ret;

    ret = snprintf_s(tmp, buf_len, (buf_len - 1), "errors:%u ", netif->mib2_counters.ifinerrors);
    if ((ret <= 0) || ((unsigned int)ret >= buf_len))
-      goto out;
+        goto out;
    tmp += ret;
    buf_len -= (unsigned int)ret;

    ret = snprintf_s(tmp, buf_len, (buf_len - 1), "dropped:%u ", netif->mib2_counters.ifindiscards);
    if ((ret <= 0) || ((unsigned int)ret >= buf_len))
-      goto out;
+        goto out;
    tmp += ret;
    buf_len -= (unsigned int)ret;

@@ -1031,12 +1032,12 @@ u32_t lwip_ifconfig(int argc, const char **argv)
 #if LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL
    if ((ifconfig_cmd.option & IFCONFIG_OPTION_SET_IP) && IP_IS_V4_VAL((ifconfig_cmd.ip_addr))) {
      /* Create the semaphore for ip conflict detection. */
-      if (sys_sem_new(&ip_conflict_detect, 0) != ERR_OK) {
-        sys_sem_free(&ifconfig_cmd.cb_completed);
-        PRINTK("ifconfig: internal error\n");
-        return 1;
-      }
-      is_ip_conflict_signal = 1;
+        if (sys_sem_new(&ip_conflict_detect, 0) != ERR_OK) {
+            sys_sem_free(&ifconfig_cmd.cb_completed);
+            PRINTK("ifconfig: internal error\n");
+            return 1;
+        }
+        is_ip_conflict_signal = 1;
    }
 #endif /* LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL */

@@ -1057,8 +1058,8 @@ u32_t lwip_ifconfig(int argc, const char **argv)
        sys_sem_free(&ifconfig_cmd.cb_completed);
 #if LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL
        if ((ifconfig_cmd.option & IFCONFIG_OPTION_SET_IP) && IP_IS_V4_VAL((ifconfig_cmd.ip_addr))) {
-          is_ip_conflict_signal = 0;
-          sys_sem_free(&ip_conflict_detect);
+            is_ip_conflict_signal = 0;
+            sys_sem_free(&ip_conflict_detect);
        }
 #endif /* LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL */

@@ -1076,37 +1077,37 @@ u32_t lwip_ifconfig(int argc, const char **argv)
    ifconfig_cmd.cb_print_buf[PRINT_BUF_LEN - 1] = '\0';
    PRINTK("%s", ifconfig_cmd.cb_print_buf);
 #if LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL
-    /* Pend 2 seconds for waiting the arp reply if the ip is already in use.*/
+    /* Pend 2 seconds for waiting the arp reply if the ip is already in use. */
    if ((ifconfig_cmd.option & IFCONFIG_OPTION_SET_IP) && IP_IS_V4_VAL((ifconfig_cmd.ip_addr))) {
-      err = (err_t)sys_arch_sem_wait(&ip_conflict_detect, DUP_ARP_DETECT_TIME);
-      is_ip_conflict_signal = 0;
-      sys_sem_free(&ip_conflict_detect);
-      if (err < 0) {
-        /* The result neither conflict nor timeout. */
-        PRINT_ERR("ifconfig: internal error\n");
-        sys_sem_free(&ifconfig_cmd.cb_completed);
-        return 1;
-      } else if (err < DUP_ARP_DETECT_TIME) {
-        /* Duplicate use of new ip, restore it to the old one. */
-        PRINT_ERR("ifconfig: ip conflict!\n");
-        ip_addr_set_ip4_u32_val(ifconfig_cmd.ip_addr, old_ip4addr);
-        ret = tcpip_callback(lwip_ifconfig_internal, &ifconfig_cmd);
-        if (ret != ERR_OK) {
-          sys_sem_free(&ifconfig_cmd.cb_completed);
-          PRINTK("%s : tcpip_callback failed in line %d : errnu %d", __FUNCTION__, __LINE__, ret);
-          return 1;
+        err = (err_t)sys_arch_sem_wait(&ip_conflict_detect, DUP_ARP_DETECT_TIME);
+        is_ip_conflict_signal = 0;
+        sys_sem_free(&ip_conflict_detect);
+        if (err < 0) {
+            /* The result neither conflict nor timeout. */
+            PRINT_ERR("ifconfig: internal error\n");
+            sys_sem_free(&ifconfig_cmd.cb_completed);
+            return 1;
+        } else if (err < DUP_ARP_DETECT_TIME) {
+            /* Duplicate use of new ip, restore it to the old one. */
+            PRINT_ERR("ifconfig: ip conflict!\n");
+            ip_addr_set_ip4_u32_val(ifconfig_cmd.ip_addr, old_ip4addr);
+            ret = tcpip_callback(lwip_ifconfig_internal, &ifconfig_cmd);
+            if (ret != ERR_OK) {
+                sys_sem_free(&ifconfig_cmd.cb_completed);
+                PRINTK("%s : tcpip_callback failed in line %d : errnu %d", __FUNCTION__, __LINE__, ret);
+                return 1;
+            }
+            (void)sys_arch_sem_wait(&ifconfig_cmd.cb_completed, 0);
+            sys_sem_free(&ifconfig_cmd.cb_completed);
+            ifconfig_cmd.cb_print_buf[PRINT_BUF_LEN - 1] = '\0';
+            PRINTK("%s", ifconfig_cmd.cb_print_buf);
+            return 1;
        }
-        (void)sys_arch_sem_wait(&ifconfig_cmd.cb_completed, 0);
-        sys_sem_free(&ifconfig_cmd.cb_completed);
-        ifconfig_cmd.cb_print_buf[PRINT_BUF_LEN - 1] = '\0';
-        PRINTK("%s", ifconfig_cmd.cb_print_buf);
-        return 1;
-      }
    }
 #endif /* LWIP_ARP && LWIP_ENABLE_IP_CONFLICT_SIGNAL */
 #if LWIP_IPV6
    if ((ifconfig_cmd.option & IFCONFIG_OPTION_SET_IP) && IP_IS_V6_VAL(ifconfig_cmd.ip_addr)) {
-        /* Pend 2 seconds for waiting the arp reply if the ip is already in use.*/
+        /* Pend 2 seconds for waiting the arp reply if the ip is already in use. */
        retval = sys_arch_sem_wait(&dup_addr_detect, DUP_ARP_DETECT_TIME);
        is_dup_detect_initialized = 0;
        sys_sem_free(&dup_addr_detect);
@@ -1191,7 +1192,6 @@ void lwip_arp_show_internal(struct netif *netif, char *printf_buf, unsigned int
                 || (state == ETHARP_STATE_STATIC)
 #endif /* ETHARP_SUPPORT_STATIC_ENTRIES */
                ) && arp_table[i].netif) {
-
                if (strcmp(netif_get_name(netif), netif_get_name(arp_table[i].netif)) != 0) {
                    continue;
                }
@@ -1305,7 +1305,7 @@ void lwip_arp_internal(void *arg)
                for (netif = netif_list; netif != NULL; netif = netif->next) {
                    ret = etharp_delete_arp_entry(netif, &ipaddr);
                    if (ret == ERR_OK) {
-                        /*only can del success one time*/
+                        /* only can del success one time */
                        break;
                    }
                }
@@ -1387,7 +1387,7 @@ u32_t lwip_arp(int argc, const char **argv)
                goto arp_error;
            }
            i += 2;
-            argc -= 2;
+            argc -= 2; // 2: number of used parameters
        } else if (strcmp("-d", argv[i]) == 0 && (argc > 1)) {
            /* arp delete */
            arp_cmd.option = ARP_OPTION_DEL;
@@ -1399,8 +1399,8 @@ u32_t lwip_arp(int argc, const char **argv)
            }

            i += 2;
-            argc -= 2;
-        } else if (strcmp("-s", argv[i]) == 0 && (argc > 2)) {
+            argc -= 2; // 2: number of used parameters
+        } else if (strcmp("-s", argv[i]) == 0 && (argc > 2)) { // 2: require more than 2 parameters
            /* arp add */
            char *digit = NULL;
            u32_t macaddrlen = strlen(argv[i + 2]) + 1;
@@ -1418,7 +1418,7 @@ u32_t lwip_arp(int argc, const char **argv)
                goto arp_error;
            }

-            /*cannot add an arp entry of 127.*.*.* */
+            /* cannot add an arp entry of 127.*.*.* */
            if ((arp_cmd.ipaddr & (u32_t)0x0000007fUL) == (u32_t)0x0000007fUL) {
                PRINTK("IP address is not correct!\n");
                goto arp_error;
@@ -1452,7 +1452,7 @@ u32_t lwip_arp(int argc, const char **argv)
            }

            i += 3;
-            argc -= 3;
+            argc -= 3; // 3: number of used parameters
        } else {
            goto arp_error;
        }
@@ -1727,7 +1727,7 @@ LWIP_STATIC int osPingFunc(u32_t destip, u32_t cnt, u32_t interval, u32_t data_l
                            break;
                        }
                        intrvl -= 1000;
-                        sys_msleep(1000);
+                        sys_msleep(1000); // 1000: delay 1 s
                        if (ping_kill == 1)
                            break;
                    } while (intrvl > 0);
@@ -1819,7 +1819,7 @@ u32_t osShellPing(int argc, const char **argv)
            count = ret;
            count_set = 1;
            i += 2;
-            argc -= 2;
+            argc -= 2; // 2: nuber of arguments that has been checked
        } else if (strcmp("-t", argv[i]) == 0) {
            count = 0; /* ping forerver */
            count_set = 1;
@@ -1834,7 +1834,7 @@ u32_t osShellPing(int argc, const char **argv)

            interval = ret;
            i += 2;
-            argc -= 2;
+            argc -= 2; // 2:number of arguments that has been checked
        } else if (strcmp("-l", argv[i]) == 0 && (argc > 1)) {
            ret = atoi(argv[i + 1]);
            if (ret < 0 || ret > (int)(LWIP_MAX_UDP_RAW_SEND_SIZE - sizeof(struct icmp_echo_hdr))) {
@@ -1844,7 +1844,7 @@ u32_t osShellPing(int argc, const char **argv)
            }
            data_len = ret;
            i += 2;
-            argc -= 2;
+            argc -= 2; // 2: number of elements has been checked
        } else if (strcmp("-k", argv[i]) == 0) {
            if (ping_taskid > 0) {
                ping_kill = 1; /* stop the current ping task */
@@ -1896,7 +1896,7 @@ u32_t osShellPing(int argc, const char **argv)
        stPingTask.auwArgs[0] = dst_ipaddr.addr; /* network order */
        stPingTask.auwArgs[1] = count;
        stPingTask.auwArgs[2] = interval;
-        stPingTask.auwArgs[3] = data_len;
+        stPingTask.auwArgs[3] = data_len; // 3: index of data length
        ret = LOS_TaskCreate((UINT32 *)(&ping_taskid), &stPingTask);
        if (ret != LOS_OK) {
            PRINTK("ping_task create failed 0x%08x.\n", ret);
@@ -1923,7 +1923,7 @@ ping_error:
 SHELLCMD_ENTRY(ping_shellcmd, CMD_TYPE_EX, "ping", XARGS, (CmdCallBackFunc)osShellPing);
 #endif /* LOSCFG_SHELL */

-#else /* LWIP_EXT_POLL_SUPPORT*/
+#else /* LWIP_EXT_POLL_SUPPORT */

 u32_t osShellPing(int argc, const char **argv)
 {
@@ -2076,7 +2076,7 @@ FAILURE:
 SHELLCMD_ENTRY(ping_shellcmd, CMD_TYPE_EX, "ping", XARGS, (CmdCallBackFunc)osShellPing);
 #endif /* LOSCFG_SHELL */

-#endif /* LWIP_EXT_POLL_SUPPORT*/
+#endif /* LWIP_EXT_POLL_SUPPORT */

 #if LWIP_IPV6
 u32_t osShellPing6(int argc, const char **argv)
@@ -2175,8 +2175,6 @@ u32_t osShellPing6(int argc, const char **argv)
    /* Setting the start time of the entire ping task for statistics */
    (void)clock_gettime(CLOCK_MONOTONIC_RAW, &first);

-    nsent = 0;
-
    for (nsent = 0; nsent < ping6_params.pingcount; nsent++) {
        /* capture the start tick to calculate rtt */
        (void)clock_gettime(CLOCK_MONOTONIC_RAW, &start);
@@ -2311,6 +2309,7 @@ REDUCE_SELECT_TIME:
    PRINTK("--- %s ping statistics ---\n", argv[ping6_params.host_index]);
    PRINTK("%d packets transmitted, %d received, %.2f%% packet loss, time %dms\n",
           nsent, nrecieve, (float)(((float)(nsent - nrecieve)) * ((float)(100)) / ((float)(nsent))),
+           /* 1000: convert seconds to milliseconds, 1000000: convert nanoseconds to milliseconds */
           ((last.tv_sec - first.tv_sec) * 1000 + (last.tv_nsec - first.tv_nsec) / 1000000));
    if (nrecieve) {
        /* Display rtt stats only if at least one packet is received */
@@ -2629,7 +2628,7 @@ usage:
 SHELLCMD_ENTRY(ntpdate_shellcmd, CMD_TYPE_EX, "ntpdate", XARGS, (CmdCallBackFunc)osShellNtpdate);
 #endif /* LOSCFG_SHELL_CMD_DEBUG */

-#endif /* LWIP_SNTP*/
+#endif /* LWIP_SNTP */

 #if LWIP_DNS
 u32_t osShellDns(int argc, const char **argv)
@@ -2866,7 +2865,7 @@ int netstat_tcp_recvq(struct tcp_pcb *tpcb)
            case NETCONN_UDP_IPV6:
 #endif
            case NETCONN_UDP:
-                SYS_ARCH_GET(((unsigned int)conn->recv_avail /*+ conn->lrcv_left*/), retVal);
+                SYS_ARCH_GET(((unsigned int)conn->recv_avail), retVal); // + conn->lrcv_left
                break;
            default:
                retVal = 0; /* ur... very ugly, damn DHCP DNS and SNTP */
@@ -2922,7 +2921,7 @@ int netstat_udp_sendq6(struct udp_pcb *upcb)
 #else
    ret = netstat_get_udp_sendQLen6(upcb, neighbor_cache[idx].q);
    if (ret >= 0) {
-      retLen += ret;
+        retLen += ret;
    }
 #endif
    return retLen;
@@ -2966,10 +2965,10 @@ int netstat_udp_sendq(struct udp_pcb *upcb)
 #else
        ret = netstat_get_udp_sendQLen(upcb, arp_table[arpidx].q);
        if (ret > 0) {
-          retLen += ret;
-          if (retLen <= 0) { // overflow, set rteLen = -1 to indicate
-            retLen = -1;
-          }
+            retLen += ret;
+            if (retLen <= 0) { // overflow, set rteLen = -1 to indicate
+                retLen = -1;
+            }
        }
 #endif
    }
@@ -2992,7 +2991,7 @@ int netstat_netconn_recvq(const struct netconn *conn)
        case NETCONN_PKT_RAW:
 #endif
        case NETCONN_UDP:
-            SYS_ARCH_GET(((unsigned int)conn->recv_avail /*+ conn->lrcv_left*/), retVal);
+            SYS_ARCH_GET(((unsigned int)conn->recv_avail), retVal); // + conn->lrcv_left
            break;
        default:
            retVal = 0; /* ur... very ugly, damn DHCP DNS and SNTP */
@@ -3019,8 +3018,8 @@ int netstat_netconn_sendq(struct netconn *conn)
 #if PF_PKT_SUPPORT
        case NETCONN_PKT_RAW:
            retVal = 0; /* always be 0 as frame send to driver directly */
-#endif
            break;
+#endif
        case NETCONN_UDP:
            retVal = netstat_udp_sendq(conn->pcb.udp);
            break;
@@ -3169,7 +3168,6 @@ void netstat_internal(void *ctx)
        }

        /* For listen PCBs */
-        recvQlen = 0;
        sendQlen = 0;

        for (lpcb = tcp_listen_pcbs.listen_pcbs; lpcb != NULL; lpcb = lpcb->next) {
@@ -3271,10 +3269,10 @@ void netstat_internal(void *ctx)
            recvQlen = netstat_netconn_recvq(rpcb->recv_arg);
            sendQlen = netstat_netconn_sendq(rpcb->recv_arg);

-            proto = rpcb->protocol;//raw_proto;
+            proto = rpcb->protocol; // raw_proto;
            iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
                              "%-8s%-12d%-12d%-20s%-20s%-16u%-16d\n",
-                              "raw", recvQlen, sendQlen, local_ip_port, remote_ip_port, proto, /*rpcb->hdrincl*/0);
+                              "raw", recvQlen, sendQlen, local_ip_port, remote_ip_port, proto, 0); // rpcb->hdrincl
            if ((iRet <= 0) || ((u32_t)(iRet) >= entry_buf_len)) {
                goto out;
            }
@@ -3297,7 +3295,8 @@ void netstat_internal(void *ctx)
            sendQlen = netstat_netconn_sendq(rpcb->recv_arg);

            for (netif = netif_list; netif != NULL; netif = netif->next) {
-                if (netif_get_index(netif)/*netif->ifindex*/ == rpcb->netif_idx/*index*/) {
+                /* netif->ifindex and index */
+                if (netif_get_index(netif) == rpcb->netif_idx) {
                    (void)snprintf_s((char *)netif_name, IFNAMSIZ, IFNAMSIZ - 1, "%s", netif_get_name(netif));
                    break;
                }
@@ -3307,7 +3306,7 @@ void netstat_internal(void *ctx)
                (void)snprintf_s((char *)netif_name, IFNAMSIZ, IFNAMSIZ - 1, "%s", "None");
            }

-            proto = rpcb->protocol;//ntohs(rpcb->proto.eth_proto);
+            proto = rpcb->protocol; // ntohs(rpcb->proto.eth_proto);

            iRet = snprintf_s((char *)(entry_buf + entry_buf_offset), entry_buf_len, entry_buf_len - 1,
                              "%-12s%-12d%-12d%-16x%-12s\n", "pkt-raw", recvQlen, sendQlen, proto, netif_name);
@@ -3668,7 +3667,7 @@ u32_t netdebug_sock(int argc, const char **argv)
    int idx;
    u32_t ret = LOS_NOK;

-    if (argc == 2) {
+    if (argc == 2) { /* 2: Number of command parameters */
        if (!strcmp("-i", argv[1])) {
            /* netdebug sock -i */
            for (idx = 0; idx < (int)LWIP_CONFIG_NUM_SOCKETS; idx++) {
@@ -3676,10 +3675,9 @@ u32_t netdebug_sock(int argc, const char **argv)
            }
            ret = LOS_OK;
        }
-    } else if (argc == 3) {
+    } else if (argc == 3) { /* 3: Number of command parameters */
        if (!strcmp("-d", argv[1])) {
-            /* netdebug sock -d <idx> */
-            idx = atoi(argv[2]);
+            idx = atoi(argv[2]); /* 2: netdebug sock -d <idx> */
            if (idx >= 0) {
                debug_socket_info(idx, 1, 1);
                ret = LOS_OK;
@@ -3796,8 +3794,9 @@ u32_t osShellIpDebug(int argc, const char **argv)
            PRINTK("%-50s ", acIPv6Addr);

            if (snprintf_s(aclladdr, sizeof(aclladdr), sizeof(aclladdr) - 1, "%02X:%02X:%02X:%02X:%02X:%02X",
-                           neighbor_cache[i].lladdr[0], neighbor_cache[i].lladdr[1], neighbor_cache[i].lladdr[2],
-                           neighbor_cache[i].lladdr[3], neighbor_cache[i].lladdr[4], neighbor_cache[i].lladdr[5]) < 0) {
+                           neighbor_cache[i].lladdr[0], neighbor_cache[i].lladdr[1], /* 0, 1, member number */
+                           neighbor_cache[i].lladdr[2], neighbor_cache[i].lladdr[3], /* 2, 3, member number */
+                           neighbor_cache[i].lladdr[4], neighbor_cache[i].lladdr[5]) < 0) { /* 4, 5, member number */
                return LOS_NOK;
            }
            PRINTK("%-25s ", aclladdr);
@@ -3884,4 +3883,4 @@ SHELLCMD_ENTRY(reboot_shellcmd, CMD_TYPE_EX, "reboot", XARGS, (CmdCallBackFunc)o
 #endif /* LOSCFG_SHELL_CMD_DEBUG */
 #endif

-#endif //LWIP_ENABLE_LOS_SHELL_CMD
+#endif // LWIP_ENABLE_LOS_SHELL_CMD
--- a/net/lwip-2.1/enhancement/src/dhcps.c
+++ b/net/lwip-2.1/enhancement/src/dhcps.c
@@ -1,6 +1,6 @@
 /*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -435,9 +435,9 @@ LWIP_STATIC void handle_discover(struct netif *netif, struct dhcps *dhcps,
    }
 #else
    else {
-      LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE,
-                  ("handle_discover: sendto(OFFER, IP_ADDR_BROADCAST, DHCP_CLIENT_PORT)\n"));
-      (void)udp_sendto_if_src(dhcps->pcb, out_msg, IP_ADDR_BROADCAST, DHCP_CLIENT_PORT, netif, &(netif->ip_addr));
+        LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE,
+                    ("handle_discover: sendto(OFFER, IP_ADDR_BROADCAST, DHCP_CLIENT_PORT)\n"));
+        (void)udp_sendto_if_src(dhcps->pcb, out_msg, IP_ADDR_BROADCAST, DHCP_CLIENT_PORT, netif, &(netif->ip_addr));
    }
 #endif

--- a/net/lwip-2.1/enhancement/src/fixme.c
+++ b/net/lwip-2.1/enhancement/src/fixme.c
@@ -1,6 +1,6 @@
 /*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -412,7 +412,7 @@ int ip6addr_aton(const char *cp, ip6_addr_t *addr)
    int squash_pos = ipv6_blocks;
    int i;
    const char *s = cp;
-    const char *ss = cp-1;
+    const char *ss = cp - 1;

    for (; ; s++) {
        if (current_block_index >= ipv6_blocks) {
--- a/net/lwip-2.1/porting/include/arch/perf.h
+++ b/net/lwip-2.1/porting/include/arch/perf.h
@@ -34,8 +34,8 @@

 #if LWIP_PERF

-#define PERF_START    do {/* something to do */} while (0)
-#define PERF_STOP(x)  do {/* something to do */} while (0)
+#define PERF_START    do {} while (0) /* something to do */
+#define PERF_STOP(x)  do {} while (0) /* something to do */

 #endif

--- a/net/lwip-2.1/porting/src/driverif.c
+++ b/net/lwip-2.1/porting/src/driverif.c
@@ -1,6 +1,6 @@
 /*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -98,10 +98,10 @@ driverif_output(struct netif *netif, struct pbuf *p)

 #if PF_PKT_SUPPORT
    if (all_pkt_raw_pcbs != NULL) {
-    p->flags = (u16_t)(p->flags & ~(PBUF_FLAG_LLMCAST | PBUF_FLAG_LLBCAST | PBUF_FLAG_HOST));
-    p->flags |= PBUF_FLAG_OUTGOING;
-    (void)raw_pkt_input(p, netif, NULL);
-  }
+        p->flags = (u16_t)(p->flags & ~(PBUF_FLAG_LLMCAST | PBUF_FLAG_LLBCAST | PBUF_FLAG_HOST));
+        p->flags |= PBUF_FLAG_OUTGOING;
+        (void)raw_pkt_input(p, netif, NULL);
+    }
 #endif

 #if ETH_PAD_SIZE
--- a/net/lwip-2.1/porting/src/sockets.c
+++ b/net/lwip-2.1/porting/src/sockets.c
@@ -1,6 +1,6 @@
 /*
 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
- * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
+ * Copyright (c) 2020-2022 Huawei Device Co., Ltd. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
@@ -803,12 +803,10 @@ static u8_t lwip_ioctl_internal_SIOCSIFHWADDR(struct ifreq *ifr)
    }
 #endif
    else {
-
        /* bring netif down to clear all Neighbor Cache Entry */
        (void)netif_set_down(netif);

        ret = netif_set_hwaddr(netif, (const unsigned char *)ifr->ifr_hwaddr.sa_data, netif->hwaddr_len);
-
        if (ret != ERR_OK) {
            (void)netif_set_up(netif);
            return err_to_errno(ret);
@@ -979,7 +977,6 @@ static u8_t lwip_ioctl_internal_SIOCGIFFLAGS(struct ifreq *ifr)
 #endif /* LWIP_IGMP || LWIP_IPV6_MLD */

 #if LWIP_DHCP
-        //if ((netif->flags & NETIF_FLAG_DHCP) != 0) {
        if (dhcp_supplied_address(netif)) {
            ifr->ifr_flags = (short)((unsigned short)ifr->ifr_flags | IFF_DYNAMIC);
        } else {
@@ -1090,7 +1087,6 @@ static u8_t lwip_ioctl_internal_SIOCSIFNAME(struct ifreq *ifr)
 #endif

    netif = netif_find(ifr->ifr_name);
-
    if (netif == NULL) {
        return ENODEV;
    } else if (netif->link_layer_type == LOOPBACK_IF) {
@@ -1165,7 +1161,6 @@ static u8_t lwip_ioctl_internal_SIOCGIFMTU(struct ifreq *ifr)

    /* get netif hw addr */
    netif = netif_find(ifr->ifr_name);
-
    if (netif == NULL) {
        return ENODEV;
    } else {
--- a/security/vid/vid.c
+++ b/security/vid/vid.c
@@ -116,8 +116,8 @@ static UINT16 GetFreeVid(VOID)
    for (i = 0; i < mapMaxNum; i++) {
        num = idMap->bitMap[i];
        for (j = 0; j < INT_BIT_COUNT; j++) {
-            if ((num & (1 << j)) == 0) {
-                num |= 1 << j;
+            if ((num & (1U << j)) == 0) {
+                num |= 1U << j;
                idMap->bitMap[i] = num;
                return (INT_BIT_COUNT * i + j);
            }
@@ -160,7 +160,7 @@ static VOID ReleaseVid(UINT16 vid)
    a = vid >> INT_BIT_SHIFT;
    b = vid & (INT_BIT_COUNT - 1);

-    idMap->bitMap[a] &= ~(1 << b);
+    idMap->bitMap[a] &= ~(1U << b);

    /* shrink bit map */
    if (mapMaxNum > 1) {
--- a/security/vid/vid_api.h
+++ b/security/vid/vid_api.h
@@ -34,9 +34,9 @@
 #include "los_typedef.h"
 #include "los_process_pri.h"

-#define INT_BIT_COUNT 32
-#define INT_BIT_SHIFT 5
-#define VID_MAP_MAX_NUM 32
+#define INT_BIT_COUNT 32U
+#define INT_BIT_SHIFT 5U
+#define VID_MAP_MAX_NUM 32U

 #define MAX_INVALID_TIMER_VID (VID_MAP_MAX_NUM * INT_BIT_COUNT)

--- a/shell/full/src/base/shell_lk.c
+++ b/shell/full/src/base/shell_lk.c
@@ -145,7 +145,7 @@ INT32 CmdLog(INT32 argc, const CHAR **argv)
        }
    } else if (!strncmp(argv[0], "module", strlen(argv[0]) + 1)) {
        module = strtoul(argv[1], &p, 0);
-        if ((*p != 0) || (module > MODULE4) || (module < MODULE0)) {
+        if ((*p != 0) || (module > MODULE4)) {
            PRINTK("log %s can't access %s\n", argv[0], argv[1]);
            PRINTK("not support yet\n");
            return -1;
--- a/shell/full/src/base/shmsg.c
+++ b/shell/full/src/base/shmsg.c
@@ -329,7 +329,7 @@ END:
 LITE_OS_SEC_TEXT_MINOR UINT32 ShellEntry(UINTPTR param)
 {
    CHAR ch;
-    INT32 n = 0;
+    INT32 n;
    ShellCB *shellCB = (ShellCB *)param;

    CONSOLE_CB *consoleCB = OsGetConsoleByID((INT32)shellCB->consoleID);
--- a/shell/full/src/cmds/dmesg.c
+++ b/shell/full/src/cmds/dmesg.c
@@ -425,7 +425,7 @@ STATIC VOID OsBufFullWrite(const CHAR *dst, UINT32 logLen)

 STATIC VOID OsWriteTailToHead(const CHAR *dst, UINT32 logLen)
 {
-    UINT32 writeLen = 0;
+    UINT32 writeLen;
    UINT32 bufSize = g_logBufSize;
    UINT32 logSize = g_dmesgInfo->logSize;
    UINT32 tail = g_dmesgInfo->logTail;
--- a/syscall/fs_syscall.c
+++ b/syscall/fs_syscall.c
@@ -1520,7 +1520,7 @@ ssize_t SysPread64(int fd, void *buf, size_t nbytes, off64_t offset)
    if (bufRet == NULL) {
        return -ENOMEM;
    }
-
+    (void)memset_s(bufRet, nbytes, 0, nbytes);
    ret = pread64(fd, (buf ? bufRet : NULL), nbytes, offset);
    if (ret < 0) {
        (void)LOS_MemFree(OS_SYS_MEM_ADDR, bufRet);
--- a/syscall/ipc_syscall.c
+++ b/syscall/ipc_syscall.c
@@ -106,7 +106,8 @@ int SysMqNotify(mqd_t personal, const struct sigevent *sigev)
 int SysMqGetSetAttr(mqd_t mqd, const struct mq_attr *new, struct mq_attr *old)
 {
    int ret;
-    struct mq_attr knew, kold;
+    struct mq_attr knew;
+    struct mq_attr kold = { 0 };

    if (new != NULL) {
        ret = LOS_ArchCopyFromUser(&knew, new, sizeof(struct mq_attr));
@@ -256,7 +257,7 @@ int SysSigTimedWait(const sigset_t_l *setl, siginfo_t *info, const struct timesp
    sigset_t set;
    unsigned int tick;
    int retVal, ret;
-    siginfo_t infoIntr;
+    siginfo_t infoIntr = { 0 };
    struct timespec timeoutIntr;

    retVal = LOS_ArchCopyFromUser(&set, &(setl->sig[0]), sizeof(sigset_t));
--- a/syscall/misc_syscall.c
+++ b/syscall/misc_syscall.c
@@ -208,7 +208,7 @@ long SysSysconf(int name)
 int SysUgetrlimit(int resource, unsigned long long k_rlim[2])
 {
    int ret;
-    struct rlimit lim;
+    struct rlimit lim = { 0 };

    ret = getrlimit(resource, &lim);
    if (ret < 0) {
--- a/syscall/process_syscall.c
+++ b/syscall/process_syscall.c
@@ -255,7 +255,7 @@ int SysSchedRRGetInterval(int pid, struct timespec *tp)
    int ret;
    SchedParam param = { 0 };
    time_t timeSlice = 0;
-    struct timespec tv;
+    struct timespec tv = { 0 };
    LosTaskCB *taskCB = NULL;
    LosProcessCB *processCB = NULL;

--- a/syscall/syscall_lookup.h
+++ b/syscall/syscall_lookup.h
@@ -263,7 +263,7 @@ SYSCALL_HAND_DEF(__NR_statx, SysStatx, int, ARG_NUM_5)
 SYSCALL_HAND_DEF(__NR_pthread_set_detach, SysUserThreadSetDetach, int, ARG_NUM_1)
 SYSCALL_HAND_DEF(__NR_pthread_join, SysThreadJoin, int, ARG_NUM_1)
 SYSCALL_HAND_DEF(__NR_pthread_deatch, SysUserThreadDetach, int, ARG_NUM_1)
-SYSCALL_HAND_DEF(__NR_creat_user_thread, SysCreateUserThread, unsigned int, ARG_NUM_3)
+SYSCALL_HAND_DEF(__NR_create_user_thread, SysCreateUserThread, unsigned int, ARG_NUM_3)
 SYSCALL_HAND_DEF(__NR_getrusage, SysGetrusage, int, ARG_NUM_2)
 SYSCALL_HAND_DEF(__NR_sysconf, SysSysconf, long, ARG_NUM_1)
 SYSCALL_HAND_DEF(__NR_ugetrlimit, SysUgetrlimit, int, ARG_NUM_2)
--- a/syscall/syscall_pub.c
+++ b/syscall/syscall_pub.c
@@ -83,6 +83,10 @@ int GetFullpath(int fd, const char *path, char **fullpath)
            fd = GetAssociatedSystemFd(fd);
        }
        ret = fs_getfilep(fd, &file);
+        if (ret < 0) {
+            ret = -EPERM;
+            goto OUT;
+        }
        if (file) {
            ret = stat(file->f_path, &bufRet);
            if (!ret) {
--- a/syscall/time_syscall.c
+++ b/syscall/time_syscall.c
@@ -109,7 +109,7 @@ int SysSetiTimer(int which, const struct itimerval *value, struct itimerval *ova
 {
    int ret;
    struct itimerval svalue;
-    struct itimerval sovalue;
+    struct itimerval sovalue = { 0 };

    if (value == NULL) {
        errno = EINVAL;
@@ -137,7 +137,7 @@ int SysSetiTimer(int which, const struct itimerval *value, struct itimerval *ova
 int SysGetiTimer(int which, struct itimerval *value)
 {
    int ret;
-    struct itimerval svalue;
+    struct itimerval svalue = { 0 };

    if (value == NULL) {
        errno = EINVAL;
@@ -189,7 +189,7 @@ int SysTimerCreate(clockid_t clockID, struct ksigevent *evp, timer_t *timerID)
 int SysTimerGettime(timer_t timerID, struct itimerspec *value)
 {
    int ret;
-    struct itimerspec svalue;
+    struct itimerspec svalue = { 0 };

    if (value == NULL) {
        errno = EINVAL;
@@ -213,7 +213,7 @@ int SysTimerSettime(timer_t timerID, int flags, const struct itimerspec *value,
 {
    int ret;
    struct itimerspec svalue;
-    struct itimerspec soldValue;
+    struct itimerspec soldValue = { 0 };

    if (value == NULL) {
        errno = EINVAL;
@@ -285,7 +285,7 @@ int SysClockSettime(clockid_t clockID, const struct timespec *tp)
 int SysClockGettime(clockid_t clockID, struct timespec *tp)
 {
    int ret;
-    struct timespec stp;
+    struct timespec stp = { 0 };

    if (tp == NULL) {
        errno = EINVAL;
@@ -308,7 +308,7 @@ int SysClockGettime(clockid_t clockID, struct timespec *tp)
 int SysClockGetres(clockid_t clockID, struct timespec *tp)
 {
    int ret;
-    struct timespec stp;
+    struct timespec stp = { 0 };

    if (tp == NULL) {
        errno = EINVAL;
@@ -356,7 +356,7 @@ int SysNanoSleep(const struct timespec *rqtp, struct timespec *rmtp)
 {
    int ret;
    struct timespec srqtp;
-    struct timespec srmtp;
+    struct timespec srmtp = { 0 };

    if (!rqtp || LOS_ArchCopyFromUser(&srqtp, rqtp, sizeof(struct timespec))) {
        errno = EFAULT;
@@ -384,7 +384,7 @@ int SysNanoSleep(const struct timespec *rqtp, struct timespec *rmtp)
 clock_t SysTimes(struct tms *buf)
 {
    clock_t ret;
-    struct tms sbuf;
+    struct tms sbuf = { 0 };

    if (buf == NULL) {
        errno = EFAULT;
@@ -436,7 +436,7 @@ int SysClockGettime64(clockid_t clockID, struct timespec64 *tp)
 {
    int ret;
    struct timespec t;
-    struct timespec64 stp;
+    struct timespec64 stp = { 0 };

    if (tp == NULL) {
        errno = EINVAL;
@@ -463,7 +463,7 @@ int SysClockGetres64(clockid_t clockID, struct timespec64 *tp)
 {
    int ret;
    struct timespec t;
-    struct timespec64 stp;
+    struct timespec64 stp = { 0 };

    if (tp == NULL) {
        errno = EINVAL;
@@ -525,7 +525,7 @@ int SysTimerGettime64(timer_t timerID, struct itimerspec64 *value)
 {
    int ret;
    struct itimerspec val;
-    struct itimerspec64 svalue;
+    struct itimerspec64 svalue = { 0 };

    if (value == NULL) {
        errno = EINVAL;
@@ -584,6 +584,7 @@ int SysTimerSettime64(timer_t timerID, int flags, const struct itimerspec64 *val
    }

    if (oldValue != NULL) {
+        (void)memset_s(&soldValue, sizeof(struct itimerspec64), 0, sizeof(struct itimerspec64));
        soldValue.it_interval.tv_sec = oldVal.it_interval.tv_sec;
        soldValue.it_interval.tv_nsec = oldVal.it_interval.tv_nsec;
        soldValue.it_value.tv_sec = oldVal.it_value.tv_sec;
--- a/testsuites/kernel/include/osTest.h
+++ b/testsuites/kernel/include/osTest.h
@@ -86,14 +86,14 @@ extern "C" {
 #endif /* __cpluscplus */
 #endif /* __cpluscplus */

-#define TEST_TASK_PARAM_INIT(testTask, task_name, entry, prio)     \
-    do {                                                           \
-        memset(&testTask, 0, sizeof(TSK_INIT_PARAM_S));            \
-        testTask.pfnTaskEntry = (TSK_ENTRY_FUNC)entry;             \
-        testTask.uwStackSize = 0x1000;                             \
-        testTask.pcName = task_name;                               \
-        testTask.usTaskPrio = prio;                                \
-        testTask.uwResved = LOS_TASK_STATUS_DETACHED;              \
+#define TEST_TASK_PARAM_INIT(testTask, task_name, entry, prio)                              \
+    do {                                                                                    \
+        (void)memset_s(&(testTask), sizeof(TSK_INIT_PARAM_S), 0, sizeof(TSK_INIT_PARAM_S)); \
+        testTask.pfnTaskEntry = (TSK_ENTRY_FUNC)entry;                                      \
+        testTask.uwStackSize = 0x1000;                                                      \
+        testTask.pcName = task_name;                                                        \
+        testTask.usTaskPrio = prio;                                                         \
+        testTask.uwResved = LOS_TASK_STATUS_DETACHED;                                       \
    } while (0);

 #ifdef LOSCFG_KERNEL_SMP
--- a/testsuites/kernel/sample/kernel_base/core/hwi_nesting/It_hwi_nesting.c
+++ b/testsuites/kernel/sample/kernel_base/core/hwi_nesting/It_hwi_nesting.c
@@ -50,7 +50,7 @@ VOID RecordIntrTrace(INT32 irq, INT32 direction)
 VOID ResetIntrTrace(VOID)
 {
    g_traceIdx = 0;
-    memset(g_intrTrace, 0, RECORD_SIZE);
+    (void)memset_s(g_intrTrace, RECORD_SIZE, 0, RECORD_SIZE);
 }

 UINT32 CheckIntrTrace(UINT32 *expect, UINT32 num)
--- a/testsuites/kernel/sample/kernel_base/core/hwi_nesting/full/It_los_hwi_nesting_006.c
+++ b/testsuites/kernel/sample/kernel_base/core/hwi_nesting/full/It_los_hwi_nesting_006.c
@@ -44,7 +44,7 @@ static VOID NestingPrioHigh(INT32 irq, VOID *data)
 {
    g_intrHandleEnd = 1;
    UINT32 temp[0x100][2] = {0};
-    memset(temp, 1, sizeof(UINT32) * 0x100 * 2); // 2, buffer size.
+    (void)memset_s(temp, sizeof(UINT32) * 0x100 * 2, 1, sizeof(UINT32) * 0x100 * 2); // 2, buffer size.
 }

 static VOID TaskF01(VOID)
--- a/testsuites/kernel/sample/kernel_base/core/hwi_nesting/full/It_los_hwi_nesting_007.c
+++ b/testsuites/kernel/sample/kernel_base/core/hwi_nesting/full/It_los_hwi_nesting_007.c
@@ -49,13 +49,13 @@ static VOID NestingPrioHigh(INT32 irq, VOID *data)
    UINT64 curTime;
    curTime = LOS_CurrNanosec();
    g_recordTime[g_saveIndex] = curTime - g_intPendTime;
-    if (g_saveIndex == MAX_RECORD_SIZE) {
-        g_saveIndex = 0;
-    }
    dprintf("curTime = %lld, pendTime = %lld \n", curTime, g_intPendTime);
    dprintf("%lld\n", curTime - g_intPendTime);
    dprintf("[swtmr] hwi response time : ##%lld \n", g_recordTime[g_saveIndex]);
    g_saveIndex++;
+    if (g_saveIndex == MAX_RECORD_SIZE) {
+        g_saveIndex = 0;
+    }
 }

 static VOID DumpResult()
--- a/testsuites/kernel/sample/kernel_base/core/task/full/It_los_task_040.c
+++ b/testsuites/kernel/sample/kernel_base/core/task/full/It_los_task_040.c
@@ -58,7 +58,7 @@ static UINT32 Testcase(void)
    // 32, number of cycles
    for (index = 0; index < 32; index++) {
        task1.usTaskPrio = index;
-        snprintf(acName, 10, "Tsk040A%2d", index); // 10, snprintf size.
+        (void)snprintf_s(acName, TASK_NAME_NUM, TASK_NAME_NUM - 1, "Tsk040A%2d", index);
        task1.pcName = acName;
        task1.uwResved = LOS_TASK_STATUS_DETACHED;

--- a/testsuites/kernel/sample/kernel_base/core/task/full/It_los_task_082.c
+++ b/testsuites/kernel/sample/kernel_base/core/task/full/It_los_task_082.c
@@ -58,9 +58,10 @@ EXIT:
 static UINT32 Testcase(void)
 {
    UINT32 ret;
-    TSK_INIT_PARAM_S task1;
+    TSK_INIT_PARAM_S task1 = {0};
+
    LOS_EventInit(&g_eventCb01);
-    memset(&task1, 0, sizeof(TSK_INIT_PARAM_S));
+
    task1.pfnTaskEntry = (TSK_ENTRY_FUNC)TaskF01;
    task1.pcName = "Tsk082A";
    task1.uwStackSize = TASK_STACK_SIZE_TEST;
--- a/testsuites/kernel/sample/kernel_base/core/task/full/It_los_task_118.c
+++ b/testsuites/kernel/sample/kernel_base/core/task/full/It_los_task_118.c
@@ -142,7 +142,8 @@ static UINT32 Testcase(void)
    ret = LOS_TaskCreate(&g_testTaskID01, &task1);
    ICUNIT_ASSERT_EQUAL(ret, LOS_OK, ret);

-    memset(&task1, 0, sizeof(TSK_INIT_PARAM_S));
+    ret = memset_s(&task1, sizeof(TSK_INIT_PARAM_S), 0, sizeof(TSK_INIT_PARAM_S));
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
    task1.pfnTaskEntry = (TSK_ENTRY_FUNC)TaskF02;
    task1.uwStackSize = TASK_STACK_SIZE_TEST;
    task1.pcName = "Tsk118B";
--- a/testsuites/kernel/sample/kernel_base/core/task/full/It_los_task_138.c
+++ b/testsuites/kernel/sample/kernel_base/core/task/full/It_los_task_138.c
@@ -142,7 +142,8 @@ static UINT32 Testcase(void)
    ret = LOS_TaskCreate(&g_testTaskID01, &task1);
    ICUNIT_ASSERT_EQUAL(ret, LOS_OK, ret);

-    memset(&task1, 0, sizeof(TSK_INIT_PARAM_S));
+    ret = memset_s(&task1, sizeof(TSK_INIT_PARAM_S), 0, sizeof(TSK_INIT_PARAM_S));
+    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
    task1.pfnTaskEntry = (TSK_ENTRY_FUNC)TaskF02;
    task1.uwStackSize = TASK_STACK_SIZE_TEST;
    task1.pcName = "Tsk118B";
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
openharmony_ci	3119d83a6a	!1087 feat: README添加内核编码规范指导 Merge pull request !1087 from zhushengle/README	2022-12-05 12:57:14 +00:00
zhushengle	8482c9d7be	feat: README新增内核编码规范 Close #I644XN Signed-off-by: zhushengle <zhushengle@huawei.com> Change-Id: I733a65111f7557e155b0bb7be87944aaa377e928	2022-12-01 16:08:38 +08:00
openharmony_ci	248e9f7089	!1082 fix: 修复README失效链接 Merge pull request !1082 from zhushengle/README	2022-11-29 11:43:57 +00:00
zhushengle	f2a35262bd	fix: 修复README失效链接 Close #I63RAH Signed-off-by: zhushengle <zhushengle@huawei.com> Change-Id: Iebff2bacd5d85ad126cf6039d4f9be1dab64815f	2022-11-29 17:42:07 +08:00
openharmony_ci	794cdae65f	!1080 feat: 更新PR模板, 添加对外变确认项 Merge pull request !1080 from zhushengle/pr	2022-11-29 01:53:25 +00:00
zhushengle	7975f5c8ef	feat: 更新PR模板, 添加对外变确认项 1.更新PR模板, 添加对外变确认项 2.添加历史版本的CHANGELOG Close #I63L3D Signed-off-by: zhushengle <zhushengle@huawei.com> Change-Id: I22f64cd0bc5ad083806edd4ff00d955cb81bef0e	2022-11-28 22:24:16 +08:00
openharmony_ci	fc4c694235	!1078 fix: codecheck问题清零 Merge pull request !1078 from zhushengle/codecheck	2022-11-28 13:36:55 +00:00
openharmony_ci	ead4da80ba	!1071 fix：增强对LOS_ArchCopyToUser接口的安全防护 Merge pull request !1071 from zhangdengyu/fix_kernelStack_1115	2022-11-28 09:07:57 +00:00
zhushengle	8d980ded54	fix: codecheck问题清零 1.shell初始化异常流程double free 2.los_disk_init中冗余初始化 3.OsKProcessPmUsage 中OsUProcessPmUsage异常退出时，存在使用未初始化的变量 4.HiLogHeadInit异常推出后，存在使用未初始化的变量 5.api_shell.c 中存在冗余初始化 fix #I63H5G Signed-off-by: zhushengle <zhushengle@huawei.com> Change-Id: If17d8ed1e6f2276e20fbce24b32de169bfd22e54	2022-11-28 16:09:10 +08:00
zhangdengyu	07e3feb456	fix: 增强对LOS_ArchCopyToUser接口的安全防护 Close: #I61CLY Signed-off-by: zhangdengyu <zhangdengyu2@huawei.com> Change-Id: I0faf8e5849c24b108f290e483124f3edaf70ef50	2022-11-25 11:47:56 +08:00
openharmony_ci	b5ce4d34df	!1058 更新liteos_a 内核架构图 Merge pull request !1058 from zhushengle/Arch	2022-11-25 01:52:49 +00:00
zhushengle	99c81c4ffa	feat: 更新liteos_a内核架构图 fix #I61OYY Signed-off-by: zhushengle <zhushengle@huawei.com> Change-Id: I038f1cae44f0138ef924bf4905f3a5b0dc24841e	2022-11-24 12:34:08 +08:00
openharmony_ci	4d1fd22b1c	!1060 LTS 补丁升级适配 Merge pull request !1060 from gaochao/master	2022-11-14 09:16:06 +00:00
openharmony_ci	efa336ab26	!1061 time相关系统调用内核栈信息泄露排查 Merge pull request !1061 from zhushengle/time	2022-11-11 06:44:21 +00:00
zhushengle	0b05a46691	task: time相关系统调用内核栈信息泄露排查解决方案: 在涉及从内核拷贝数据到用户态的场景时，先将内核的数据进行清零操作，再填充内核数据 Close #I60M1P Signed-off-by: zhushengle <zhushengle@huawei.com> Change-Id: Ia61d4e39b9e190accea477ff5b361e41d0eed2af	2022-11-11 14:24:07 +08:00
gaochao	177f32283f	LTS 补丁升级适配 Signed-off-by: gaochao <gaochao49@huawei.com>	2022-11-10 16:32:48 +08:00
openharmony_ci	6888193e3f	!1052 LTS 5.10 补丁升级适配 Merge pull request !1052 from gaochao/master	2022-11-04 07:23:25 +00:00
gc1202	6c352a7b10	LTS 补丁升级适配 Signed-off-by: gc1202 <gaochao49@huawei.com>	2022-11-02 14:23:47 +08:00
openharmony_ci	73a9587f02	!1046 Fix : 内核告警清理 Merge pull request !1046 from yinjiaming/fix	2022-10-27 12:50:29 +00:00
openharmony_ci	cbd03bd7e0	!913 删除PLATFORM_QEMU_ARM_VIRT_CA7侵入内核的所有代码 Merge pull request !913 from laokz/jffs2fat	2022-10-26 03:52:16 +00:00
yinjiaming	8d55bb1d8c	fix: 内核告警清理【背景】内核告警清理【修改方案】删去了多余的空格，更改了魔数字【影响】对现有的产品编译不会有影响。 Signed-off-by: yinjiaming <yinjiaming@huawei.com> Change-Id: Iba21be6cb23027dfb369576847d7d21e85f936b4	2022-10-26 10:57:08 +08:00
openharmony_ci	e7daa28200	!1025 清除一些静态检查工具发现的问题 Merge pull request !1025 from Far/master	2022-10-17 01:39:02 +00:00
Far	987a722d2d	fix: 修复一些静态检查工具发现的问题 Signed-off-by: Far <yesiyuan2@huawei.com> Change-Id: I2b93259d55a9eb1a9dfd5887fd7821c15274bb7f	2022-10-15 17:36:45 +08:00
openharmony_ci	ccdfa72431	!1016 修复执行测试用例执行时间过长等问题 Merge pull request !1016 from 夏不白/fix_unittest	2022-10-12 06:29:16 +00:00
openharmony_ci	557a71c1c3	!1020 jffs2.patch 文件适配LTS补丁升级 Merge pull request !1020 from 闻飞/master	2022-10-08 11:28:25 +00:00
wenfei	569aecb6ea	jffs2.patch update Signed-off-by: wenfei <wenfei9@huawei.com>	2022-09-30 11:23:29 +08:00
xiacong	8c0b7d0f38	<fix> 修复测试用例不过的问题 <body> 1.修复执行liteos_a_basic_unittest.bin时间过长的问题 2.修复测试shm系列系统调用函数用例失败的问题 Signed-off-by: xiacong <xiacong4@huawei.com> Change-Id: Iabc541cb1c0e97dac0fe13aaeb98e85404e5bf6f Signed-off-by: xiacong <xiacong4@huawei.com>	2022-09-28 17:24:14 +08:00
openharmony_ci	c488817b32	!1008 修复内核告警信息 Merge pull request !1008 from zhangdengyu/fix_preferused	2022-09-26 12:52:00 +00:00
openharmony_ci	43d47a27e3	!1011 fix: 修复shell_lk.c告警清零带来的逻辑修改 Merge pull request !1011 from 夏不白/module_fix	2022-09-26 11:22:57 +00:00
xiacong	a83f916298	<fix> 恢复告警清零带来的逻辑改变 Signed-off-by: xiacong <xiacong4@huawei.com> Change-Id: I8d34d2b9c43ea54e5474cbddcde0048658cbb891 Signed-off-by: xiacong <xiacong4@huawei.com>	2022-09-26 17:29:08 +08:00
zhangdengyu	8dbfd3846e	fix: 修复告警 Signed-off-by: zhangdengyu <zhangdengyu2@huawei.com>	2022-09-26 17:08:56 +08:00
openharmony_ci	f34762c105	!1001 修复函数返回错误等问题 Merge pull request !1001 from zhangdengyu/fix_tsacn	2022-09-25 06:42:18 +00:00
zhangdengyu	043e84dfcb	fix：修复函数返回错误等问题 Signed-off-by: zhangdengyu <zhangdengyu2@huawei.com>	2022-09-25 10:09:29 +08:00
openharmony_ci	453c376198	!997 Fix : 内核告警清理 Merge pull request !997 from yinjiaming/fix	2022-09-22 11:33:00 +00:00
yinjiaming	204d7a4abb	fix: 内核告警清理【背景】内核中经扫描有可以修改的告警之处【修改方案】优化了代码的格式【影响】对现有的产品编译不会有影响。 re #I5SHM2 Signed-off-by: yinjiaming <yinjiaming@huawei.com> Change-Id: I89be86a8317637f9eb54257131712b5b79f1e454	2022-09-22 16:53:11 +08:00
openharmony_ci	f2861a84bf	!987 Fix : 内核告警清理 Merge pull request !987 from yinjiaming/fix	2022-09-21 04:42:42 +00:00
yinjiaming	96b2d557ac	fix: 内核告警修复【背景】经代码扫描工具检测,内核代码中存在可以修复的告警【修改方案】 1.将单语句的if, while等加上括号 2.将C语言风格的类型转换变为C++风格【影响】对现有的产品编译不会有影响。 Signed-off-by: yinjiaming <yinjiaming@huawei.com> Change-Id: I7d4a04a8904abb3c33e843049bf15f4386d3efd8	2022-09-21 11:38:51 +08:00
openharmony_ci	ffa11535ca	!991 【OpenHarmony开源贡献者计划2022】fix warning: expression result unused Merge pull request !991 from xiwen1225/void	2022-09-19 03:19:16 +00:00
openharmony_ci	b581207045	!992 【OpenHarmony开源贡献者计划2022】fix warning for signal_test_016.cpp Merge pull request !992 from queuechen/warn	2022-09-19 02:44:00 +00:00
ookami78	5105249ecf	fix warning for signal_test_016.cpp Signed-off-by: ookami78 <ookami78@mymailcr.com>	2022-09-18 14:21:46 +08:00
cunwen	a61e2cf16e	fix warning: expression result unused Signed-off-by: cunwen <cunwen181168@liuxiuhai.cn>	2022-09-18 11:29:44 +08:00
openharmony_ci	39e25c5220	!989 Fix : 修复测试用例返回值问题 Merge pull request !989 from yinjiaming/dev	2022-09-13 12:38:03 +00:00
yinjiaming	5541965365	fix: 修复测试用例中函数返回值的问题【背景】测试用例中有函数的返回值不正确【修改方案】将返回值为VOID *的函数的返回值改为 retrun NULL 【影响】对现有的产品编译不会有影响。 re #I5O3LH Signed-off-by: yinjiaming <yinjiaming@huawei.com> Change-Id: I6d3ce9efbe9afe14b1e9dd12538b80e69928fd71	2022-09-09 15:28:22 +08:00
openharmony_ci	edd2223083	!983 【OpenHarmony开源贡献者计划2022】删除未使用的变量 count Merge pull request !983 from leijiawei/master	2022-09-06 06:20:52 +00:00
openharmony_ci	22392965b5	!947 Fix : 版权头时间更新 Merge pull request !947 from yinjiaming/dev	2022-09-06 02:55:30 +00:00
yinjiaming	d906bb91ea	fix: 版权头时间更新问题【背景】一些代码文件经过修改后需要更新版权头【修改方案】更新了需要更新的版权头时间【影响】对现有的产品编译不会有影响。 re #I5LG22 Signed-off-by: yinjiaming <yinjiaming@huawei.com> Change-Id: I7963bf6ce5746707bad688dd4c634ae9d72b3c04	2022-09-05 16:03:30 +08:00
leijiawei	51f6a20723	fix warning:unused variable 'count' & add return value Signed-off-by: leijiawei <18691361562@163.com>	2022-08-31 15:28:27 +08:00
leibanli	325ea29df3	fix warning:unused variable 'count' Signed-off-by: leijiawei <18691361562@163.com>	2022-08-31 15:01:32 +08:00
leibanli	c2f9f6705f	【openHarmony开源贡献者计划2022】18691361562@163.com Signed-off-by: leibanli <18691361562@163.com>	2022-08-30 21:53:58 +08:00
openharmony_ci	71e51d8813	!971 非安全函数告警清理 Merge pull request !971 from xuxinyu/function_s	2022-08-26 04:45:29 +00:00
xuxinyu	e0b4fcb23d	test: replace unsecure function with secure function Signed-off-by: xuxinyu <xuxinyu6@huawei.com> Change-Id: Ie120ffa529798f0f087ddfcd34f5d9c5802b6766	2022-08-25 23:08:58 +08:00
openharmony_ci	7d62d3d62b	!979 style: shell脚本中不同函数使用不同变量 Merge pull request !979 from Hongjin Li/dev	2022-08-25 03:32:45 +00:00
Hongjin Li	69f3bf3a2a	style: using different variable in different functions Signed-off-by: Hongjin Li <lihongjin1@huawei.com> Change-Id: I814dcccefcd6248ea32cae94bfde567f3077c7cd	2022-08-25 10:16:45 +08:00
openharmony_ci	2590e34346	!969 编译构建规范优化 Merge pull request !969 from Hongjin Li/dev	2022-08-23 12:55:42 +00:00
Hongjin Li	660b314f90	style: string format in python Signed-off-by: Hongjin Li <lihongjin1@huawei.com> Change-Id: Ie84a97ca5e0250991aa774b737eb7787e27d80af	2022-08-23 20:22:13 +08:00
openharmony_ci	44ec199465	!951 【OpenHarmony开源贡献者计划2022】fix moudule to module Merge pull request !951 from bingge88/module	2022-08-12 02:16:38 +00:00
openharmony_ci	7437408f65	!950 OpenHarmony开源贡献者计划2022】fix: change szie to size Merge pull request !950 from Dream_Liu/master	2022-08-12 02:15:42 +00:00
binge889	1134332a58	fix moudule to module Signed-off-by: binge889 <binge889@liuxiuhai.cn>	2022-08-11 23:31:52 +08:00
Dream_Liu	8099f6578d	fix:change szie to size Signed-off-by: Dream_Liu <lxm201x@163.com>	2022-08-11 23:14:20 +08:00
openharmony_ci	ba23a26f95	!928 Fix : 内核告警清理 Merge pull request !928 from yinjiaming/fix	2022-08-09 08:37:34 +00:00
yinjiaming	2dc24da826	fix: 内核告警清理【背景】内核代码经代码扫描工具发现存在一些关于代码格式的告警，现经修改解除掉告警. 【修改方案】修改了代码中格式不规范的地方，修改的点有： 1.代码中一行过长 2.没有合理的添加空格和空行 3.没有按照规范进行缩进 4.括号的格式没有按照规范 5.注释的格式不对以及存在魔数字 6.函数的声明与定义的格式不一致并更新了修改文件的版权头时间【影响】对现有的产品编译不会有影响。 re #I5H6F5 Signed-off-by: yinjiaming <yinjiaming@huawei.com> Change-Id: Ie46b5b3238fd88c25f99542b8ccd138b956c6458	2022-08-08 13:09:54 +00:00
openharmony_ci	6302c5f767	!938 修复用例告警 Merge pull request !938 from xuxinyu/master	2022-07-29 03:46:59 +00:00
xuxinyu	f0d5959576	fix: 修复用例告警问题 re #I5I21P Signed-off-by: xuxinyu <xuxinyu6@huawei.com> Change-Id: Iedab5b6fddafc2042c7fd23fbcd82061629f87d8	2022-07-26 11:07:02 +08:00
openharmony_ci	65790b67d5	!937 拼写错误修正 Merge pull request !937 from yinjiaming/dev	2022-07-25 11:06:35 +00:00
openharmony_ci	9eff5cff1d	!934 refactor: sysroot部件化 Merge pull request !934 from Zhaotianyu/20220716sysroot_lite	2022-07-22 08:57:25 +00:00
yinjiaming	99ea8d4ed2	fix: 拼写错误修正【背景】代码中存在拼写错误【修改方案】修改存在拼写错误的地方【影响】对现有的产品编译不会有影响。 re #I5IA7P Signed-off-by: yinjiaming <yinjiaming@huawei.com> Change-Id: Idd5d7fc9705e5ec661596aa6533402e8d4a8a117	2022-07-21 11:05:11 +00:00
arvinzzz	1568c317bb	refactor: sysroot部件化 close: #I5HF8S Signed-off-by: arvinzzz <zhaotianyu9@huawei.com> Change-Id: I727b10c3b419fc71e228f5ad92abc107e756bbac	2022-07-19 12:32:32 +08:00
openharmony_ci	5e70129199	!917 【OpenHarmony开源贡献者计划2022】fix warning: unused variable Merge pull request !917 from rtos_ming/unused	2022-07-04 01:24:28 +00:00
zhumingxian	089376994a	fix warning: unused variable Signed-off-by: zhumingxian <zhumingxian@ohos.com.cn>	2022-06-30 20:49:50 +08:00
openharmony_ci	12adfd5832	!915 【OpenHarmony开源贡献者计划2022】Fixed typos. Merge pull request !915 from Mr_YX/master	2022-06-30 06:11:01 +00:00
openharmony_ci	c46c5a640d	!905 「OpenHarmony贡献者计划2022」update signal_test_020.cpp Merge pull request !905 from Mr_YX/master	2022-06-30 06:09:18 +00:00
mr-yx	c812b0c27b	fixed typos Signed-off-by: mr-yx <496043997@qq.com>	2022-06-28 23:48:24 +08:00
laokz	059c1c22b1	fix(PLATFORM_QEMU_ARM_VIRT_CA7): remove all invasive code arm-virt emulation rootfs change to vfat from jffs2, root device change to eMMC from CFI flash Signed-off-by: laokz <laokz@foxmail.com> Change-Id: If284809b989918cf10f5d32803df42c8c57830b2	2022-06-25 18:25:39 +08:00
Mr_YX	0164461b33	Signed-off-by: mr-yx <496043997@qq.com>	2022-06-20 15:16:02 +00:00