kernel: copy mips_decompressor_memmove patch to 3.18/3.19

Signed-off-by: John Crispin <blogic@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@44339 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 22 insertions, 0 deletions

diff --git a/target/linux/generic/patches-3.19/060-mips_decompressor_memmove.patch b/target/linux/generic/patches-3.19/060-mips_decompressor_memmove.patch
new file mode 100644
index 0000000000..d215b80ab2
--- /dev/null
+++ b/target/linux/generic/patches-3.19/060-mips_decompressor_memmove.patch
@@ -0,0 +1,22 @@
+--- a/arch/mips/boot/compressed/string.c
++++ b/arch/mips/boot/compressed/string.c
+@@ -26,3 +26,19 @@ void *memset(void *s, int c, size_t n)
+ 		ss[i] = c;
+ 	return s;
+ }
++
++void *memmove(void *__dest, __const void *__src, size_t count)
++{
++	unsigned char *d = __dest;
++	const unsigned char *s = __src;
++
++	if (__dest == __src)
++		return __dest;
++
++	if (__dest < __src)
++		return memcpy(__dest, __src, count);
++
++	while (count--)
++		d[count] = s[count];
++	return __dest;
++}