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authorWill Deacon <will.deacon@arm.com>2015-07-16 20:26:02 +0200
committerWill Deacon <will.deacon@arm.com>2015-07-27 12:08:39 +0200
commitcba3574fd56be8132a19e4aa6b1d41a12c56d990 (patch)
tree8cf0134b9f3111964fc9eaa88ffdb5e16448f4da /arch/arm64/include/asm/tlbflush.h
parentarm64: consolidate __swiotlb_mmap (diff)
downloadlinux-cba3574fd56be8132a19e4aa6b1d41a12c56d990.tar.xz
linux-cba3574fd56be8132a19e4aa6b1d41a12c56d990.zip
arm64: move update_mmu_cache() into asm/pgtable.h
Mark Brown reported an allnoconfig build failure in -next: Today's linux-next fails to build an arm64 allnoconfig due to "mm: make GUP handle pfn mapping unless FOLL_GET is requested" which causes: > arm64-allnoconfig > ../mm/gup.c:51:4: error: implicit declaration of function 'update_mmu_cache' [-Werror=implicit-function-declaration] Fix the error by moving the function to asm/pgtable.h, as is the case for most other architectures. Reported-by: Mark Brown <broonie@kernel.org> Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/include/asm/tlbflush.h')
-rw-r--r--arch/arm64/include/asm/tlbflush.h14
1 files changed, 0 insertions, 14 deletions
diff --git a/arch/arm64/include/asm/tlbflush.h b/arch/arm64/include/asm/tlbflush.h
index 934815d45eda..7fedfa787a64 100644
--- a/arch/arm64/include/asm/tlbflush.h
+++ b/arch/arm64/include/asm/tlbflush.h
@@ -154,20 +154,6 @@ static inline void __flush_tlb_pgtable(struct mm_struct *mm,
asm("tlbi vae1is, %0" : : "r" (addr));
dsb(ish);
}
-/*
- * On AArch64, the cache coherency is handled via the set_pte_at() function.
- */
-static inline void update_mmu_cache(struct vm_area_struct *vma,
- unsigned long addr, pte_t *ptep)
-{
- /*
- * set_pte() does not have a DSB for user mappings, so make sure that
- * the page table write is visible.
- */
- dsb(ishst);
-}
-
-#define update_mmu_cache_pmd(vma, address, pmd) do { } while (0)
#endif