From: John Williams <john.williams@petalogix.com>
Date: Tue, 24 Mar 2009 01:10:00 +0000 (+1000)
Subject: microblaze: Don't use access_ok for unaligned
X-Git-Tag: firefly_0821_release~13950^2
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=3447ef29a7f3b1fd0d8d58376950e695e04f6f8b;p=firefly-linux-kernel-4.4.55.git

microblaze: Don't use access_ok for unaligned

it assumes we have an unaligned exception handler which

 (a) may not be true
 (b) costs a lot of performance
 Instead we'll use struct/union method for big endian accesses,
  and byte-shifting for little endian.

Signed-off-by: John Williams <john.williams@petalogix.com>
---

diff --git a/arch/microblaze/include/asm/unaligned.h b/arch/microblaze/include/asm/unaligned.h
index 9d66b640c910..3658d91ac0fb 100644
--- a/arch/microblaze/include/asm/unaligned.h
+++ b/arch/microblaze/include/asm/unaligned.h
@@ -12,7 +12,8 @@
 
 # ifdef __KERNEL__
 
-# include <linux/unaligned/access_ok.h>
+# include <linux/unaligned/be_struct.h>
+# include <linux/unaligned/le_byteshift.h>
 # include <linux/unaligned/generic.h>
 
 # define get_unaligned	__get_unaligned_be