powerpc/32: Remove CLR_TOP32

CLR_TOP32() is defined as blank. Last useful instance of CLR_TOP32()
was removed by commit 40ef8cbc6d360 ("powerpc: Get 64-bit configs to
compile with ARCH=powerpc") in 2005.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h
index bb56685..c73750b 100644 (file)
--- a/arch/powerpc/include/asm/ppc_asm.h
+++ b/arch/powerpc/include/asm/ppc_asm.h
@@ -511,7 +511,6 @@ END_FTR_SECTION_IFCLR(CPU_FTR_601)
 #endif
 #define MTMSRD(r)      mtmsr   r
 #define MTMSR_EERI(reg)        mtmsr   reg
-#define CLR_TOP32(r)
 #endif
 
 #endif /* __KERNEL__ */

diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 9899032..83428a2 100644 (file)
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -654,7 +654,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_SPE)
 #endif /* CONFIG_SMP */
 
        tophys(r0,r4)
-       CLR_TOP32(r0)
        mtspr   SPRN_SPRG_THREAD,r0     /* Update current THREAD phys addr */
        lwz     r1,KSP(r4)      /* Load new stack pointer */
 

diff --git a/arch/powerpc/kernel/head_32.S b/arch/powerpc/kernel/head_32.S
index dc0488b..a3f821e 100644 (file)
--- a/arch/powerpc/kernel/head_32.S
+++ b/arch/powerpc/kernel/head_32.S
@@ -266,7 +266,6 @@ __secondary_hold_acknowledge:
 
 
 #define EXCEPTION_PROLOG_2     \
-       CLR_TOP32(r11);         \
        stw     r10,_CCR(r11);          /* save registers */ \
        stw     r12,GPR12(r11); \
        stw     r9,GPR9(r11);   \
@@ -862,7 +861,6 @@ __secondary_start:
        /* ptr to phys current thread */
        tophys(r4,r2)
        addi    r4,r4,THREAD    /* phys address of our thread_struct */
-       CLR_TOP32(r4)
        mtspr   SPRN_SPRG_THREAD,r4
        li      r3,0
        mtspr   SPRN_SPRG_RTAS,r3       /* 0 => not in RTAS */
@@ -949,7 +947,6 @@ start_here:
        /* ptr to phys current thread */
        tophys(r4,r2)
        addi    r4,r4,THREAD    /* init task's THREAD */
-       CLR_TOP32(r4)
        mtspr   SPRN_SPRG_THREAD,r4
        li      r3,0
        mtspr   SPRN_SPRG_RTAS,r3       /* 0 => not in RTAS */

diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index 43ddaae..3a185c5 100644 (file)
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -151,7 +151,6 @@ turn_on_mmu:
 
 
 #define EXCEPTION_PROLOG_2     \
-       CLR_TOP32(r11);         \
        stw     r10,_CCR(r11);          /* save registers */ \
        stw     r12,GPR12(r11); \
        stw     r9,GPR9(r11);   \