From: Arnd Bergmann <arnd@arndb.de>
Date: Mon, 30 Apr 2012 13:18:46 +0000 (+0000)
Subject: ARM: warnings in arch/arm/include/asm/uaccess.h
X-Git-Tag: v3.7-rc3~28^2^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8e7fc18b5eacc37b6e6fcf486ec4eafbfef91738;p=pandora-kernel.git

ARM: warnings in arch/arm/include/asm/uaccess.h

On NOMMU ARM, the __addr_ok() and __range_ok() macros do not evaluate
their arguments, which may lead to harmless build warnings in some
code where the variables are not used otherwise. Adding a cast to void
gets rid of the warning and does not make any semantic changes.

Without this patch, building at91x40_defconfig results in:

fs/read_write.c: In function 'rw_copy_check_uvector':
fs/read_write.c:684:9: warning: unused variable 'buf' [-Wunused-variable]

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Greg Ungerer <gerg@uclinux.org>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
---

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