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ARM: boot: add strrchr function
author
Rob Herring
<robh@kernel.org>
Thu, 1 Mar 2018 15:18:22 +0000
(09:18 -0600)
committer
Rob Herring
<robh@kernel.org>
Thu, 1 Mar 2018 18:02:48 +0000
(12:02 -0600)
libfdt gained a new dependency on strrchr, so copy the implementation
from lib/string.c.
Cc: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
arch/arm/boot/compressed/string.c
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diff --git
a/arch/arm/boot/compressed/string.c
b/arch/arm/boot/compressed/string.c
index
13c90ab
..
ade5079
100644
(file)
--- a/
arch/arm/boot/compressed/string.c
+++ b/
arch/arm/boot/compressed/string.c
@@
-121,6
+121,16
@@
char *strchr(const char *s, int c)
return (char *)s;
}
+char *strrchr(const char *s, int c)
+{
+ const char *last = NULL;
+ do {
+ if (*s == (char)c)
+ last = s;
+ } while (*s++);
+ return (char *)last;
+}
+
#undef memset
void *memset(void *s, int c, size_t count)