diff options
| author | Heiko Carstens <hca@linux.ibm.com> | 2025-04-24 11:27:11 +0200 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2025-04-30 11:41:28 +0200 |
| commit | de6b4f99010ad22f0242f1fc0f75c0752a56e9bb (patch) | |
| tree | b5b839e2369d266db5468cd86572839923bf1450 /arch/s390/lib/string.c | |
| parent | ed5eef1141a35551a56c9cc0c475f0e0b6291e77 (diff) | |
s390/string: Remove strcpy() implementation
Remove the optimized strcpy() library implementation. This doesn't make any
difference since gcc recognizes all strcpy() usages anyway and uses the
builtin variant. There is not a single branch to strcpy() within the
generated kernel image, which also seems to be the reason why most other
architectures don't have a strcpy() implementation anymore.
Reviewed-by: Mikhail Zaslonko <zaslonko@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'arch/s390/lib/string.c')
| -rw-r--r-- | arch/s390/lib/string.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/arch/s390/lib/string.c b/arch/s390/lib/string.c index cc00804c6dac..099de76e8b1a 100644 --- a/arch/s390/lib/string.c +++ b/arch/s390/lib/string.c @@ -78,30 +78,6 @@ EXPORT_SYMBOL(strnlen); #endif /** - * strcpy - Copy a %NUL terminated string - * @dest: Where to copy the string to - * @src: Where to copy the string from - * - * returns a pointer to @dest - */ -#ifdef __HAVE_ARCH_STRCPY -char *strcpy(char *dest, const char *src) -{ - char *ret = dest; - - asm volatile( - " lghi 0,0\n" - "0: mvst %[dest],%[src]\n" - " jo 0b\n" - : [dest] "+&a" (dest), [src] "+&a" (src) - : - : "cc", "memory", "0"); - return ret; -} -EXPORT_SYMBOL(strcpy); -#endif - -/** * strcat - Append one %NUL-terminated string to another * @dest: The string to be appended to * @src: The string to append to it |