diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-02-15 08:05:18 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-02-27 10:25:53 -0800 |
| commit | 0a7ea9d5aa1e2cab84a48c0380f7f8c305006224 (patch) | |
| tree | 58214ad108c4981450351000223d0364a15a19ec | |
| parent | 42f2560ed6e9b040ef64e18a5030bf2d2cb05d7f (diff) | |
i387: fix sense of sanity check
commit c38e23456278e967f094b08247ffc3711b1029b2 upstream.
The check for save_init_fpu() (introduced in commit 5b1cbac37798: "i387:
make irq_fpu_usable() tests more robust") was the wrong way around, but
I hadn't noticed, because my "tests" were bogus: the FPU exceptions are
disabled by default, so even doing a divide by zero never actually
triggers this code at all unless you do extra work to enable them.
So if anybody did enable them, they'd get one spurious warning.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/x86/include/asm/i387.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/include/asm/i387.h b/arch/x86/include/asm/i387.h index a4365829e386..262bea981aa5 100644 --- a/arch/x86/include/asm/i387.h +++ b/arch/x86/include/asm/i387.h @@ -404,7 +404,7 @@ static inline void irq_ts_restore(int TS_state) */ static inline void save_init_fpu(struct task_struct *tsk) { - WARN_ON_ONCE(task_thread_info(tsk)->status & TS_USEDFPU); + WARN_ON_ONCE(!(task_thread_info(tsk)->status & TS_USEDFPU)); preempt_disable(); __save_init_fpu(tsk); stts(); |