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powerpc/tm: Remove unnecessary r1 save

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We save r1 to the scratch SPR and restore it from there after the trechkpt so
saving r1 to the paca is not needed.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Michael Neuling
2014-03-28 16:40:33 +11:00
committed by Benjamin Herrenschmidt
parent fb5153d05a
commit ce0ac1fc32
1 changed files with 0 additions and 2 deletions
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arch/powerpc/kernel/tm.S
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@@ -320,8 +320,6 @@ _GLOBAL(__tm_recheckpoint)
*/ */
SAVE_NVGPRS(r1) SAVE_NVGPRS(r1)
std r1, PACAR1(r13)
/* Load complete register state from ts_ckpt* registers */ /* Load complete register state from ts_ckpt* registers */
addi r7, r3, PT_CKPT_REGS /* Thread's ckpt_regs */ addi r7, r3, PT_CKPT_REGS /* Thread's ckpt_regs */