MIPS: Fix GCC-4.6 'set but not used' warning in signal*.c
authorDavid Daney <ddaney@caviumnetworks.com>
Mon, 24 Jan 2011 22:51:34 +0000 (14:51 -0800)
committerRalf Baechle <ralf@linux-mips.org>
Mon, 14 Mar 2011 20:07:25 +0000 (21:07 +0100)
commitc726b822131e7fdb62745a5585449e6a159395e8
treef71f25b0444db1a00eca9985f19956eb18fe2aa5
parenta18059ace1eee8c4755bcce22163d137425db607
MIPS: Fix GCC-4.6 'set but not used' warning in signal*.c

GCC-4.6 can find more unused code than previous versions could.

In the case of protected_restore_fp_context{,32}, the variable tmp is
really used.  Its use is tricky in that we really care about the side
effects of the __put_user() calls.  So we must mark tmp with
__maybe_unused to quiet the warning.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
To: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/2035/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
arch/mips/kernel/signal.c
arch/mips/kernel/signal32.c