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authorIngo Molnar <mingo@kernel.org>2016-02-29 08:42:07 (GMT)
committerIngo Molnar <mingo@kernel.org>2016-02-29 08:42:07 (GMT)
commit6aa447bcbb444cd1b738613a20627f288d631665 (patch)
tree62030bb14be0006248181305ac1fe377a99e5b65 /arch/mips/include/asm/fpu.h
parentabedf8e2419fb873d919dd74de2e84b510259339 (diff)
parent48be3a67da7413d62e5efbcf2c73a9dddf61fb96 (diff)
downloadlinux-6aa447bcbb444cd1b738613a20627f288d631665.tar.xz
Merge branch 'sched/urgent' into sched/core, to pick up fixes before applying new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/mips/include/asm/fpu.h')
-rw-r--r--arch/mips/include/asm/fpu.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/mips/include/asm/fpu.h b/arch/mips/include/asm/fpu.h
index 9cbf383..f06f97b 100644
--- a/arch/mips/include/asm/fpu.h
+++ b/arch/mips/include/asm/fpu.h
@@ -179,6 +179,10 @@ static inline void lose_fpu_inatomic(int save, struct task_struct *tsk)
if (save)
_save_fp(tsk);
__disable_fpu();
+ } else {
+ /* FPU should not have been left enabled with no owner */
+ WARN(read_c0_status() & ST0_CU1,
+ "Orphaned FPU left enabled");
}
KSTK_STATUS(tsk) &= ~ST0_CU1;
clear_tsk_thread_flag(tsk, TIF_USEDFPU);