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authorHeiko Carstens <hca@linux.ibm.com>2021-10-21 13:40:32 +0200
committerVasily Gorbik <gor@linux.ibm.com>2021-10-26 15:21:30 +0200
commiteec013bbf66fd17fc5671de6744913cb68036a00 (patch)
treec7a3bd600562d91b4735baeb4b3a9b7a45640cdf /arch/s390
parent132c1e74aa7f8f9d33552645d2c35d3d8f9f0cf1 (diff)
downloadlinux-eec013bbf66fd17fc5671de6744913cb68036a00.tar.bz2
s390/string: use generic strrchr
Use generic strrchr instead of an optimized architecture specific variant. Performance of strrchr is not relevant for real life workloads, since the only user which may call this more frequently would be kbasename(). Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Link: https://lore.kernel.org/lkml/CAHk-=whoe211F8ND-9hZvfnib0UA4gga8DZJ+YaBZNbE4fubdg@mail.gmail.com/ Signed-off-by: Heiko Carstens <hca@linux.ibm.com> Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390')
-rw-r--r--arch/s390/include/asm/string.h2
-rw-r--r--arch/s390/lib/string.c19
2 files changed, 0 insertions, 21 deletions
diff --git a/arch/s390/include/asm/string.h b/arch/s390/include/asm/string.h
index 4fd66c5e8934..4f418850bfd6 100644
--- a/arch/s390/include/asm/string.h
+++ b/arch/s390/include/asm/string.h
@@ -36,7 +36,6 @@ void *memmove(void *dest, const void *src, size_t n);
#define __HAVE_ARCH_STRNCAT /* arch function */
#define __HAVE_ARCH_STRNCPY /* arch function */
#define __HAVE_ARCH_STRNLEN /* inline & arch function */
-#define __HAVE_ARCH_STRRCHR /* arch function */
#define __HAVE_ARCH_STRSTR /* arch function */
/* Prototypes for non-inlined arch strings functions. */
@@ -46,7 +45,6 @@ size_t strlcat(char *dest, const char *src, size_t n);
size_t strlcpy(char *dest, const char *src, size_t size);
char *strncat(char *dest, const char *src, size_t n);
char *strncpy(char *dest, const char *src, size_t n);
-char *strrchr(const char *s, int c);
char *strstr(const char *s1, const char *s2);
#endif /* !CONFIG_KASAN */
diff --git a/arch/s390/lib/string.c b/arch/s390/lib/string.c
index a95ca6df4e5e..4c2d1a8949cc 100644
--- a/arch/s390/lib/string.c
+++ b/arch/s390/lib/string.c
@@ -251,25 +251,6 @@ int strcmp(const char *s1, const char *s2)
EXPORT_SYMBOL(strcmp);
#endif
-/**
- * strrchr - Find the last occurrence of a character in a string
- * @s: The string to be searched
- * @c: The character to search for
- */
-#ifdef __HAVE_ARCH_STRRCHR
-char *strrchr(const char *s, int c)
-{
- ssize_t len = __strend(s) - s;
-
- do {
- if (s[len] == (char)c)
- return (char *)s + len;
- } while (--len >= 0);
- return NULL;
-}
-EXPORT_SYMBOL(strrchr);
-#endif
-
static inline int clcle(const char *s1, unsigned long l1,
const char *s2, unsigned long l2)
{