diff options
| author | Tong Tiangen <tongtiangen@huawei.com> | 2022-05-17 07:45:48 +0000 |
|---|---|---|
| committer | akpm <akpm@linux-foundation.org> | 2022-05-19 14:08:48 -0700 |
| commit | ed928a3402d8a24a70c242c63109c069a7b1f3ab (patch) | |
| tree | 2fbbec1249799a33f8c26e59361eb3ea5096ad67 /arch/arm64/include/asm/pgtable.h | |
| parent | 2c8a81dc0cc533c666c64f4139a608b0ae55d96f (diff) | |
arm64/mm: fix page table check compile error for CONFIG_PGTABLE_LEVELS=2
If CONFIG_PGTABLE_LEVELS=2 and CONFIG_ARCH_SUPPORTS_PAGE_TABLE_CHECK=y,
then we trigger a compile error:
error: implicit declaration of function 'pte_user_accessible_page'
Move the definition of page table check helper out of branch
CONFIG_PGTABLE_LEVELS > 2
Link: https://lkml.kernel.org/r/20220517074548.2227779-3-tongtiangen@huawei.com
Fixes: daf214c14dbe ("arm64/mm: enable ARCH_SUPPORTS_PAGE_TABLE_CHECK")
Signed-off-by: Tong Tiangen <tongtiangen@huawei.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Pasha Tatashin <pasha.tatashin@soleen.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Guohanjun <guohanjun@huawei.com>
Cc: Xie XiuQi <xiexiuqi@huawei.com>
Cc: kernel test robot <lkp@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/arm64/include/asm/pgtable.h')
| -rw-r--r-- | arch/arm64/include/asm/pgtable.h | 33 |
1 files changed, 17 insertions, 16 deletions
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h index 4e61cde27f9f..979601528f1e 100644 --- a/arch/arm64/include/asm/pgtable.h +++ b/arch/arm64/include/asm/pgtable.h @@ -667,22 +667,6 @@ static inline unsigned long pmd_page_vaddr(pmd_t pmd) #define pud_valid(pud) pte_valid(pud_pte(pud)) #define pud_user(pud) pte_user(pud_pte(pud)) -#ifdef CONFIG_PAGE_TABLE_CHECK -static inline bool pte_user_accessible_page(pte_t pte) -{ - return pte_present(pte) && (pte_user(pte) || pte_user_exec(pte)); -} - -static inline bool pmd_user_accessible_page(pmd_t pmd) -{ - return pmd_present(pmd) && (pmd_user(pmd) || pmd_user_exec(pmd)); -} - -static inline bool pud_user_accessible_page(pud_t pud) -{ - return pud_present(pud) && pud_user(pud); -} -#endif static inline void set_pud(pud_t *pudp, pud_t pud) { @@ -855,6 +839,23 @@ static inline int pgd_devmap(pgd_t pgd) } #endif +#ifdef CONFIG_PAGE_TABLE_CHECK +static inline bool pte_user_accessible_page(pte_t pte) +{ + return pte_present(pte) && (pte_user(pte) || pte_user_exec(pte)); +} + +static inline bool pmd_user_accessible_page(pmd_t pmd) +{ + return pmd_present(pmd) && (pmd_user(pmd) || pmd_user_exec(pmd)); +} + +static inline bool pud_user_accessible_page(pud_t pud) +{ + return pud_present(pud) && pud_user(pud); +} +#endif + /* * Atomic pte/pmd modifications. */ |