Commit c38e2345 authored by Linus Torvalds's avatar Linus Torvalds

i387: fix sense of sanity check

The check for save_init_fpu() (introduced in commit 5b1cbac3: "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: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 7ada1dd6
...@@ -404,7 +404,7 @@ static inline void irq_ts_restore(int TS_state) ...@@ -404,7 +404,7 @@ static inline void irq_ts_restore(int TS_state)
*/ */
static inline void save_init_fpu(struct task_struct *tsk) 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(); preempt_disable();
__save_init_fpu(tsk); __save_init_fpu(tsk);
stts(); stts();
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment