From: Michal Simek <monstr@monstr.eu>
Date: Mon, 13 Jul 2009 14:46:54 +0000 (+0200)
Subject: microblaze: Fix put_user macro for 64bits arguments
X-Git-Tag: v2.6.31-rc5~86^2~9
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7bcb63b21327427b130edeb6e6ad44ee260b3043;p=pandora-kernel.git

microblaze: Fix put_user macro for 64bits arguments

For 64bits arguments gcc caused that put_user macro
works with wrong value because of optimalization.
Adding volatile caused that gcc not optimized it.

It is possible to use (as Blackfin do) two put_user
macros with 32bits arguments but there is one more
instruction which is due to duplication zero return
value which is called put_user_asm macro.

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