diff options
| author | Ryan Roberts <ryan.roberts@arm.com> | 2024-05-09 15:28:42 +0300 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2024-05-09 17:45:02 +0300 |
| commit | cb67ea121cdd3e4ecea306fbb0058d031d5ad950 (patch) | |
| tree | 6ae5af554b5c82d0e66fb7b81760a941bad6005d /arch/arm64/include | |
| parent | 5b32510af77bdb275b022dc0d6d5b9c61751065b (diff) | |
| download | linux-cb67ea121cdd3e4ecea306fbb0058d031d5ad950.tar.xz | |
arm64/mm: Fix pud_user_accessible_page() for PGTABLE_LEVELS <= 2
The recent change to use pud_valid() as part of the implementation of
pud_user_accessible_page() fails to build when PGTABLE_LEVELS <= 2
because pud_valid() is not defined in that case.
Fix this by defining pud_valid() to false for this case. This means that
pud_user_accessible_page() will correctly always return false for this
config.
Fixes: f0f5863a0fb0 ("arm64/mm: Remove PTE_PROT_NONE bit")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202405082221.43rfWxz5-lkp@intel.com/
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Link: https://lore.kernel.org/r/20240509122844.563320-1-ryan.roberts@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/include')
| -rw-r--r-- | arch/arm64/include/asm/pgtable.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 78fd3e2ef8c6..bde9fd179388 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -814,6 +814,7 @@ static inline pmd_t *pud_pgtable(pud_t pud) #else +#define pud_valid(pud) false #define pud_page_paddr(pud) ({ BUILD_BUG(); 0; }) #define pud_user_exec(pud) pud_user(pud) /* Always 0 with folding */ |