There's no way _switch_to can produce double exceptions now, don't enter/leave EXC_TABLE_FIXUP critical section.
Signed-off-by: Max Filippov <[email protected]> --- arch/xtensa/kernel/entry.S | 4 ---- 1 file changed, 4 deletions(-) diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S index 5771d5c..309e71b 100644 --- a/arch/xtensa/kernel/entry.S +++ b/arch/xtensa/kernel/entry.S @@ -1883,9 +1883,7 @@ ENTRY(_switch_to) /* Disable ints while we manipulate the stack pointer. */ rsil a14, LOCKLEVEL - rsr a3, excsave1 rsync - s32i a3, a3, EXC_TABLE_FIXUP /* enter critical section */ /* Switch CPENABLE */ @@ -1906,9 +1904,7 @@ ENTRY(_switch_to) */ rsr a3, excsave1 # exc_table - movi a6, 0 addi a7, a5, PT_REGS_OFFSET - s32i a6, a3, EXC_TABLE_FIXUP s32i a7, a3, EXC_TABLE_KSTK /* restore context of the task 'next' */ -- 1.8.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
