The patch titled
Subject: lib/string.c: improve strrchr()
has been removed from the -mm tree. Its filename was
lib-stringc-improve-strrchr.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Subject: lib/string.c: improve strrchr()
Instead of potentially passing over the string twice in case c is not
found, just keep track of the last occurrence. According to
bloat-o-meter, this also cuts the generated code by a third (54 vs 36
bytes). Oh, and we get rid of those 7-space indented lines.
Signed-off-by: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/string.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff -puN lib/string.c~lib-stringc-improve-strrchr lib/string.c
--- a/lib/string.c~lib-stringc-improve-strrchr
+++ a/lib/string.c
@@ -313,12 +313,12 @@ EXPORT_SYMBOL(strchrnul);
*/
char *strrchr(const char *s, int c)
{
- const char *p = s + strlen(s);
- do {
- if (*p == (char)c)
- return (char *)p;
- } while (--p >= s);
- return NULL;
+ const char *last = NULL;
+ do {
+ if (*s == (char)c)
+ last = s;
+ } while (*s++);
+ return (char *)last;
}
EXPORT_SYMBOL(strrchr);
#endif
_
Patches currently in -mm which might be from linux@xxxxxxxxxxxxxxxxxx are
origin.patch
linux-next.patch
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