From: Heiko Carstens <heiko.carstens@de.ibm.com>
Date: Tue, 29 May 2012 05:33:59 +0000 (+0200)
Subject: s390/uaccess: fix access_ok compile warnings
X-Git-Tag: v3.5-rc1~30^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=491af9903b858ee7c36735dc31708fe4074ce56f;p=pandora-kernel.git

s390/uaccess: fix access_ok compile warnings

On s390 access_ok is a macro which discards all parameters and always
returns 1. This can result in compile warnings which warn about unused
variables like this:

fs/read_write.c: In function 'rw_copy_check_uvector':
fs/read_write.c:684:16: warning: unused variable 'buf' [-Wunused-variable]

Fix this by adding a __range_ok() function which consumes all parameters
but still always returns 1.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
---

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