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powerpc: Remove NULL task struct pointer checks in FP and vector code

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We used to allow giveup_*() to be called with a NULL task struct
pointer. Now those cases are handled in the caller we can remove
the checks. We can also remove giveup_altivec_notask() which is also
unused.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Anton Blanchard
2015-10-29 11:44:00 +11:00
committed by Michael Ellerman
parent 611b0e5c19
commit b51b1153d0
4 changed files with 0 additions and 19 deletions
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arch/powerpc/kernel/fpu.S
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@@ -173,8 +173,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_VSX)
MTMSRD(r5) /* enable use of fpu now */
SYNC_601
isync
PPC_LCMPI 0,r3,0
beqlr- /* if no previous owner, done */
addi r3,r3,THREAD /* want THREAD of task */
PPC_LL r6,THREAD_FPSAVEAREA(r3)
PPC_LL r5,PT_REGS(r3)