[POWERPC] Clean up misc_64.S

* Removed get_msr(), get_srr0(), and get_srr1() - not used anywhere
* Use STACK_FRAME_OVERHEAD instead of magic number

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>

diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index a3c491e..942951e 100644 (file)
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -27,23 +27,11 @@
 
        .text
 
-_GLOBAL(get_msr)
-       mfmsr   r3
-       blr
-
-_GLOBAL(get_srr0)
-       mfsrr0  r3
-       blr
-
-_GLOBAL(get_srr1)
-       mfsrr1  r3
-       blr
-
 #ifdef CONFIG_IRQSTACKS
 _GLOBAL(call_do_softirq)
        mflr    r0
        std     r0,16(r1)
-       stdu    r1,THREAD_SIZE-112(r3)
+       stdu    r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r3)
        mr      r1,r3
        bl      .__do_softirq
        ld      r1,0(r1)
@@ -56,7 +44,7 @@ _GLOBAL(call_handle_irq)
        mflr    r0
        std     r0,16(r1)
        mtctr   r8
-       stdu    r1,THREAD_SIZE-112(r5)
+       stdu    r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r5)
        mr      r1,r5
        bctrl
        ld      r1,0(r1)
@@ -599,7 +587,7 @@ _GLOBAL(kexec_sequence)
        std     r0,16(r1)
 
        /* switch stacks to newstack -- &kexec_stack.stack */
-       stdu    r1,THREAD_SIZE-112(r3)
+       stdu    r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r3)
        mr      r1,r3
 
        li      r0,0
@@ -616,7 +604,7 @@ _GLOBAL(kexec_sequence)
        std     r26,-48(r1)
        std     r25,-56(r1)
 
-       stdu    r1,-112-64(r1)
+       stdu    r1,-STACK_FRAME_OVERHEAD-64(r1)
 
        /* save args into preserved regs */
        mr      r31,r3                  /* newstack (both) */