diff options
| author |   Anton Blanchard <anton@samba.org> | 2015-10-29 11:43:56 +1100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2015-12-01 13:52:24 +1100 |
| commit | 68bfa962bff5783ad65de9dc7f3b9e16ea466766 (patch) | |
| tree | d6721d3280eeab4a3e7e220581335098e1bf3fd6 /arch/powerpc/kernel/entry_64.S | |
| parent | powerpc: Create context switch helpers save_sprs() and restore_sprs() (diff) | |
| download | linux-dev-68bfa962bff5783ad65de9dc7f3b9e16ea466766.tar.xz linux-dev-68bfa962bff5783ad65de9dc7f3b9e16ea466766.zip | |
powerpc: Remove redundant mflr in _switch
No need to execute mflr twice.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to '')
| -rw-r--r-- | arch/powerpc/kernel/entry_64.S | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index e84e5bc7fe34..c8b4225a0095 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -452,9 +452,7 @@ _GLOBAL(_switch) /* r3-r13 are caller saved -- Cort */ SAVE_8GPRS(14, r1) SAVE_10GPRS(22, r1) - mflr r20 /* Return to switch caller */ - - std r20,_NIP(r1) + std r0,_NIP(r1) /* Return to switch caller */ mfcr r23 std r23,_CCR(r1) std r1,KSP(r3) /* Set old stack pointer */ |