From d9dff17aec4fa1e4f9f0e1a32d099a493f299862 Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Tue, 12 Mar 2024 20:38:23 +0100
Subject: [PATCH] handle incx < 0

---
 kernel/riscv64/nrm2_vector.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/riscv64/nrm2_vector.c b/kernel/riscv64/nrm2_vector.c
index 5c03fbec7..129dbba7a 100644
--- a/kernel/riscv64/nrm2_vector.c
+++ b/kernel/riscv64/nrm2_vector.c
@@ -104,7 +104,7 @@ FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x)
 {
 	BLASLONG i=0;
 
-	if (n <= 0 || inc_x <= 0) return(0.0);
+	if (n <= 0 || inc_x == 0) return(0.0);
         if(n == 1) return (ABS(x[0]));
 
         unsigned int gvl = 0;
@@ -193,7 +193,7 @@ FLOAT CNAME(BLASLONG n, FLOAT *x, BLASLONG inc_x)
         //finish any tail using scalar ops
         i*=gvl*inc_x;
         n*=inc_x;
-        while(i < n){
+        while(abs(i) < abs(n)){
                 if ( x[i] != 0.0 ){
                         FLOAT absxi = ABS( x[i] );
                         if ( scale < absxi ){