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authorNick Desaulniers <ndesaulniers@google.com>2020-12-16 05:43:40 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2020-12-16 07:46:16 +0100
commitff72daa371f58fbf16999f4fb3d65d4f650555aa (patch)
tree9f04b68692cbc4033bba7a177f88e08b8daade80
parentilog2: improve ilog2 for constant arguments (diff)
downloadlinux-ff72daa371f58fbf16999f4fb3d65d4f650555aa.tar.xz
linux-ff72daa371f58fbf16999f4fb3d65d4f650555aa.zip
lib/string: remove unnecessary #undefs
A few architecture specific string.h functions used to be implemented in terms of preprocessor defines to the corresponding compiler builtins. Since this is no longer the case, remove unused #undefs. Only memcmp is still defined in terms of builtins for a few arches. Link: https://github.com/ClangBuiltLinux/linux/issues/428 Link: https://lkml.kernel.org/r/20201120041113.89382-1-ndesaulniers@google.com Fixes: 5f074f3e192f ("lib/string.c: implement a basic bcmp") Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Yury Norov <yury.norov@gmail.com> Cc: Alexandru Ardelean <alexandru.ardelean@analog.com> Cc: Nathan Chancellor <natechancellor@gmail.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--lib/string.c4
1 files changed, 0 insertions, 4 deletions
diff --git a/lib/string.c b/lib/string.c
index 4288e0158d47..7548eb715ddb 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -85,7 +85,6 @@ EXPORT_SYMBOL(strcasecmp);
* @dest: Where to copy the string to
* @src: Where to copy the string from
*/
-#undef strcpy
char *strcpy(char *dest, const char *src)
{
char *tmp = dest;
@@ -302,7 +301,6 @@ EXPORT_SYMBOL(stpcpy);
* @dest: The string to be appended to
* @src: The string to append to it
*/
-#undef strcat
char *strcat(char *dest, const char *src)
{
char *tmp = dest;
@@ -378,7 +376,6 @@ EXPORT_SYMBOL(strlcat);
* @cs: One string
* @ct: Another string
*/
-#undef strcmp
int strcmp(const char *cs, const char *ct)
{
unsigned char c1, c2;
@@ -958,7 +955,6 @@ EXPORT_SYMBOL(memcmp);
* while this particular implementation is a simple (tail) call to memcmp, do
* not rely on anything but whether the return value is zero or non-zero.
*/
-#undef bcmp
int bcmp(const void *a, const void *b, size_t len)
{
return memcmp(a, b, len);