From: Michal Simek <monstr@monstr.eu>
Date: Fri, 28 Jan 2011 12:26:54 +0000 (+0100)
Subject: microblaze: Fix ASM optimized code for LE
X-Git-Tag: firefly_0821_release~7613^2~2530^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=de93c3c119382cb888ca8a94b642dbcf8035525e;p=firefly-linux-kernel-4.4.55.git

microblaze: Fix ASM optimized code for LE

Microblaze little-endian doesn't support ASM optimized library
functions(memcpy/memmove). Kconfig doens't contain
any information about endian that's why it is necessary to
check it in the source code.
The code is used with barrel shifter is used.

Signed-off-by: Michal Simek <monstr@monstr.eu>
---

diff --git a/arch/microblaze/lib/fastcopy.S b/arch/microblaze/lib/fastcopy.S
index fdc48bb065d8..62021d7e249e 100644
--- a/arch/microblaze/lib/fastcopy.S
+++ b/arch/microblaze/lib/fastcopy.S
@@ -29,6 +29,10 @@
  *	between mem locations with size of xfer spec'd in bytes
  */
 
+#ifdef __MICROBLAZEEL__
+#error Microblaze LE not support ASM optimized lib func. Disable OPT_LIB_ASM.
+#endif
+
 #include <linux/linkage.h>
 	.text
 	.globl	memcpy