From 18217da36103c25d87870624dfa569e6b9906a90 Mon Sep 17 00:00:00 2001 From: Stephen Rothwell Date: Mon, 30 Sep 2019 10:13:42 +1000 Subject: [PATCH] powerpc/64s/radix: Fix build failure with RADIX_MMU=n After merging the powerpc tree, today's linux-next build (powerpc64 allnoconfig) failed like this: arch/powerpc/mm/book3s64/pgtable.c:216:3: error: implicit declaration of function 'radix__flush_all_lpid_guest' radix__flush_all_lpid_guest() is only declared for CONFIG_PPC_RADIX_MMU which is not set for this build. Fix it by adding an empty version for the RADIX_MMU=n case, which should never be called. Fixes: 99161de3a283 ("powerpc/64s/radix: tidy up TLB flushing code") Signed-off-by: Stephen Rothwell [mpe: Munge change log] Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20190930101342.36c1afa0@canb.auug.org.au --- arch/powerpc/include/asm/book3s/64/tlbflush-radix.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h index 4ce795d30377..ca8db193ae38 100644 --- a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h +++ b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h @@ -35,6 +35,10 @@ static inline void radix__flush_all_lpid(unsigned int lpid) { WARN_ON(1); } +static inline void radix__flush_all_lpid_guest(unsigned int lpid) +{ + WARN_ON(1); +} #endif extern void radix__flush_hugetlb_tlb_range(struct vm_area_struct *vma,