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>

parent f26e9381

arch/arm/boot/compressed/string.c

+10 −0

Original line number	Diff line number	Diff line
		@@ -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)