From fc48bad53142c991a5280940fd7ee8d226697b2c Mon Sep 17 00:00:00 2001 From: Benjamin Herrenschmidt Date: Fri, 19 Aug 2016 14:22:35 +0530 Subject: [PATCH] powerpc/64/kexec: NULL check "clear_all" in kexec_sequence With Radix, it can be NULL even on !BOOKE these days so replace the ifdef with a NULL check which is cleaner anyway. Signed-off-by: Benjamin Herrenschmidt Signed-off-by: Aneesh Kumar K.V Acked-by: Balbir Singh Signed-off-by: Michael Ellerman --- arch/powerpc/kernel/misc_64.S | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S index 5d7e583..939e3f5 100644 --- a/arch/powerpc/kernel/misc_64.S +++ b/arch/powerpc/kernel/misc_64.S @@ -660,7 +660,9 @@ _GLOBAL(kexec_sequence) li r6,1 stw r6,kexec_flag-1b(5) -#ifndef CONFIG_PPC_BOOK3E + cmpdi r27,0 + beq 1f + /* clear out hardware hash page table and tlb */ #ifdef PPC64_ELF_ABI_v1 ld r12,0(r27) /* deref function descriptor */ @@ -669,7 +671,6 @@ _GLOBAL(kexec_sequence) #endif mtctr r12 bctrl /* mmu_hash_ops.hpte_clear_all(void); */ -#endif /* !CONFIG_PPC_BOOK3E */ /* * kexec image calling is: @@ -696,7 +697,7 @@ _GLOBAL(kexec_sequence) * are the boot cpu ????? * other device tree differences (prop sizes, va vs pa, etc)... */ - mr r3,r25 # my phys cpu +1: mr r3,r25 # my phys cpu mr r4,r30 # start, aka phys mem offset mtlr 4 li r5,0 -- 2.7.4