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| author | David Daney <ddaney@caviumnetworks.com> | 2011-01-24 14:51:34 -0800 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2011-03-14 21:07:25 +0100 |
| commit | c726b822131e7fdb62745a5585449e6a159395e8 (patch) | |
| tree | f71f25b0444db1a00eca9985f19956eb18fe2aa5 | |
| parent | a18059ace1eee8c4755bcce22163d137425db607 (diff) | |
| download | blackbird-op-linux-c726b822131e7fdb62745a5585449e6a159395e8.tar.gz blackbird-op-linux-c726b822131e7fdb62745a5585449e6a159395e8.zip | |
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>
| -rw-r--r-- | arch/mips/kernel/signal.c | 2 | ||||
| -rw-r--r-- | arch/mips/kernel/signal32.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c index 5922342bca39..dbbe0ce48d89 100644 --- a/arch/mips/kernel/signal.c +++ b/arch/mips/kernel/signal.c @@ -84,7 +84,7 @@ static int protected_save_fp_context(struct sigcontext __user *sc) static int protected_restore_fp_context(struct sigcontext __user *sc) { - int err, tmp; + int err, tmp __maybe_unused; while (1) { lock_fpu_owner(); own_fpu_inatomic(0); diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c index a0ed0e052b2e..aae986613795 100644 --- a/arch/mips/kernel/signal32.c +++ b/arch/mips/kernel/signal32.c @@ -115,7 +115,7 @@ static int protected_save_fp_context32(struct sigcontext32 __user *sc) static int protected_restore_fp_context32(struct sigcontext32 __user *sc) { - int err, tmp; + int err, tmp __maybe_unused; while (1) { lock_fpu_owner(); own_fpu_inatomic(0); |
