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Subject[PATCH] powerpc: boot: add strrchr function
Date
libfdt gained a new dependency on strrchr, so copy the implementation
from lib/string.c. Most of the string functions are in assembly, but
stdio.c already has strnlen, so add strrchr there.

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Rob Herring <robh@kernel.org>
---
Please ack. This is a dependency for dtc/libfdt sync with upstream.

arch/powerpc/boot/stdio.c | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/arch/powerpc/boot/stdio.c b/arch/powerpc/boot/stdio.c
index a701261b1781..98042eff7b26 100644
--- a/arch/powerpc/boot/stdio.c
+++ b/arch/powerpc/boot/stdio.c
@@ -21,6 +21,16 @@ size_t strnlen(const char * s, size_t count)
return sc - s;
}

+char *strrchr(const char *s, int c)
+{
+ const char *last = NULL;
+ do {
+ if (*s == (char)c)
+ last = s;
+ } while (*s++);
+ return (char *)last;
+}
+
#ifdef __powerpc64__

# define do_div(n, base) ({ \
--
2.14.1
\
 
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