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| author | Max Filippov <jcmvbkbc@gmail.com> | 2015-07-17 04:24:49 +0200 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2015-08-17 06:33:37 +0200 |
| commit | 98e298329e7b391293da5097817437292c842dc9 (patch) | |
| tree | 665980a8f5b58b75bc4d8c5a6be9e665fec4aaca /arch/xtensa/kernel/entry.S | |
| parent | xtensa: fix kernel register spilling (diff) | |
| download | linux-98e298329e7b391293da5097817437292c842dc9.tar.xz linux-98e298329e7b391293da5097817437292c842dc9.zip | |
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>
Diffstat (limited to 'arch/xtensa/kernel/entry.S')
| -rw-r--r-- | arch/xtensa/kernel/entry.S | 4 |
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' */ |