xtensa: don't touch EXC_TABLE_FIXUP in _switch_to

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 <jcmvbkbc@gmail.com>

1 files changed, 0 insertions, 4 deletions

diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S
index 3d9d221d2f0f..5703bc13a9ba 100644
--- a/arch/xtensa/kernel/entry.S
+++ b/arch/xtensa/kernel/entry.S
@@ -1868,9 +1868,7 @@ 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 */
 
@@ -1891,9 +1889,7 @@ 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' */