perf: Drop the skip argument from perf_arch_fetch_regs_caller

[net-next-2.6.git] / arch / powerpc / kernel / misc.S

diff --git a/arch/powerpc/kernel/misc.S b/arch/powerpc/kernel/misc.S
index 22e507c8a5566d1f4dfcfe9db67482e3c0e83e35..2d29752cbe169ea9398fbd1381cd9eff64ec28c8 100644 (file)
--- a/arch/powerpc/kernel/misc.S
+++ b/arch/powerpc/kernel/misc.S
@@ -127,29 +127,3 @@ _GLOBAL(__setup_cpu_power7)
 _GLOBAL(__restore_cpu_power7)
        /* place holder */
        blr
-
-/*
- * Get a minimal set of registers for our caller's nth caller.
- * r3 = regs pointer, r5 = n.
- *
- * We only get R1 (stack pointer), NIP (next instruction pointer)
- * and LR (link register).  These are all we can get in the
- * general case without doing complicated stack unwinding, but
- * fortunately they are enough to do a stack backtrace, which
- * is all we need them for.
- */
-_GLOBAL(perf_arch_fetch_caller_regs)
-       mr      r6,r1
-       cmpwi   r5,0
-       mflr    r4
-       ble     2f
-       mtctr   r5
-1:     PPC_LL  r6,0(r6)
-       bdnz    1b
-       PPC_LL  r4,PPC_LR_STKOFF(r6)
-2:     PPC_LL  r7,0(r6)
-       PPC_LL  r7,PPC_LR_STKOFF(r7)
-       PPC_STL r6,GPR1-STACK_FRAME_OVERHEAD(r3)
-       PPC_STL r4,_NIP-STACK_FRAME_OVERHEAD(r3)
-       PPC_STL r7,_LINK-STACK_FRAME_OVERHEAD(r3)
-       blr