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| author | Michael Ellerman <mpe@ellerman.id.au> | 2018-01-30 20:37:21 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-01-30 20:41:30 +1100 |
| commit | 015eb1b89e959c9349f0a01803fb8ed1ced36f09 (patch) | |
| tree | 999a8d4d585617dcfd3637100bbf9d883369c4d1 | |
| parent | 516c32f64f144721ca05b881737e4425932827c5 (diff) | |
| download | linux-015eb1b89e959c9349f0a01803fb8ed1ced36f09.tar.bz2 | |
powerpc/mm/radix: Fix build error when RADIX_MMU=n
The recent TLB flush rework broke the build when the Radix MMU is
disabled at build time, eg:
(.text+0x264): undefined reference to `.radix__tlbiel_all'
We could add an empty version, but if we ever called it by accident
that would indicate a bad bug, so add a stub that just WARNs if we do.
Fixes: d4748276ae14 ("powerpc/64s: Improve local TLB flush for boot and MCE on POWER9")
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/powerpc/include/asm/book3s/64/tlbflush-radix.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h index b8f9ad587087..8eea90f80e45 100644 --- a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h +++ b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h @@ -11,7 +11,11 @@ static inline int mmu_get_ap(int psize) return mmu_psize_defs[psize].ap; } +#ifdef CONFIG_PPC_RADIX_MMU extern void radix__tlbiel_all(unsigned int action); +#else +static inline void radix__tlbiel_all(unsigned int action) { WARN_ON(1); }; +#endif extern void radix__flush_hugetlb_tlb_range(struct vm_area_struct *vma, unsigned long start, unsigned long end); |