From 9cc719ab3f4f639d629ac8ff09e9b998bc006f68 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Sat, 23 May 2015 01:20:19 +0200 Subject: [PATCH] MIPS: MSA: bugfix - disable MSA correctly for new threads/processes. Due to the slightly odd way that new threads and processes start execution when scheduled for the very first time they were bypassing the required disable_msa call. Signed-off-by: Ralf Baechle --- arch/mips/include/asm/switch_to.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/include/asm/switch_to.h b/arch/mips/include/asm/switch_to.h index e92d6c4b5ed1..7163cd7fdd69 100644 --- a/arch/mips/include/asm/switch_to.h +++ b/arch/mips/include/asm/switch_to.h @@ -104,7 +104,6 @@ do { \ if (test_and_clear_tsk_thread_flag(prev, TIF_USEDMSA)) \ __fpsave = FP_SAVE_VECTOR; \ (last) = resume(prev, next, task_thread_info(next), __fpsave); \ - disable_msa(); \ } while (0) #define finish_arch_switch(prev) \ @@ -122,6 +121,7 @@ do { \ if (cpu_has_userlocal) \ write_c0_userlocal(current_thread_info()->tp_value); \ __restore_watch(); \ + disable_msa(); \ } while (0) #endif /* _ASM_SWITCH_TO_H */