From: Rob Herring <robh@kernel.org>
Date: Thu, 1 Mar 2018 15:18:22 +0000 (-0600)
Subject: ARM: boot: add strrchr function
X-Git-Tag: v4.19~1284^2~8^2~5
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=60c03a0448c7144d01ef437aae0a1c7e2367b4ba;p=platform%2Fkernel%2Flinux-rpi.git

ARM: boot: add strrchr function

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>
---

diff --git a/arch/arm/boot/compressed/string.c b/arch/arm/boot/compressed/string.c
index 13c90ab..ade5079 100644
--- 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)