From: Victor Kamensky <victor.kamensky@linaro.org>
Date: Tue, 21 Jan 2014 05:45:11 +0000 (+0100)
Subject: ARM: 7946/1: asm: __und_usr_thumb need byteswap instructions in BE case
X-Git-Tag: v3.14-rc1~58^2~1^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f8fe23ec4e89b58e63085ea92348aff3bcca3e14;p=pandora-kernel.git

ARM: 7946/1: asm: __und_usr_thumb need byteswap instructions in BE case

__und_usr_thumb function deals with thumb2 opcodes. In case of BE
image, it needs to byteswap half word thumb2 encoded instructions
before further processing them.

Without this fix BE image user-land thread executing first VFP
instruction encoded in thumb2 fails with SIGILL, because kernel
does not recognize instruction and does not enable VFP.

Reported-by: Corey Melton <comelton@cisco.com>
Signed-off-by: Victor Kamensky <victor.kamensky@linaro.org>
Tested-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

Reading git-diff-tree failed