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Peter Anvin" , "Liang, Kan" , Yoshinori Sato , x86@kernel.org, Steven Price , Ingo Molnar , Arnd Bergmann , =?UTF-8?q?J=C3=A9r=C3=B4me=20Glisse?= , Borislav Petkov , Andy Lutomirski , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Ard Biesheuvel , linux-kernel@vger.kernel.org, James Morse Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org walk_page_range() is going to be allowed to walk page tables other than those of user space. For this it needs to know when it has reached a 'leaf' entry in the page tables. This information is provided by the p?d_large() functions/macros. For sh, we don't support large pages, so add stubs returning 0. CC: Yoshinori Sato CC: Rich Felker CC: linux-sh@vger.kernel.org Signed-off-by: Steven Price --- arch/sh/include/asm/pgtable-3level.h | 1 + arch/sh/include/asm/pgtable_32.h | 1 + arch/sh/include/asm/pgtable_64.h | 1 + 3 files changed, 3 insertions(+) diff --git a/arch/sh/include/asm/pgtable-3level.h b/arch/sh/include/asm/pgtable-3level.h index 7d8587eb65ff..9d8b2b002582 100644 --- a/arch/sh/include/asm/pgtable-3level.h +++ b/arch/sh/include/asm/pgtable-3level.h @@ -48,6 +48,7 @@ static inline pmd_t *pmd_offset(pud_t *pud, unsigned long address) #define pud_present(x) (pud_val(x)) #define pud_clear(xp) do { set_pud(xp, __pud(0)); } while (0) #define pud_bad(x) (pud_val(x) & ~PAGE_MASK) +#define pud_large(x) (0) /* * (puds are folded into pgds so this doesn't get actually called, diff --git a/arch/sh/include/asm/pgtable_32.h b/arch/sh/include/asm/pgtable_32.h index 29274f0e428e..61186aa11021 100644 --- a/arch/sh/include/asm/pgtable_32.h +++ b/arch/sh/include/asm/pgtable_32.h @@ -329,6 +329,7 @@ static inline void set_pte(pte_t *ptep, pte_t pte) #define pmd_present(x) (pmd_val(x)) #define pmd_clear(xp) do { set_pmd(xp, __pmd(0)); } while (0) #define pmd_bad(x) (pmd_val(x) & ~PAGE_MASK) +#define pmd_large(x) (0) #define pages_to_mb(x) ((x) >> (20-PAGE_SHIFT)) #define pte_page(x) pfn_to_page(pte_pfn(x)) diff --git a/arch/sh/include/asm/pgtable_64.h b/arch/sh/include/asm/pgtable_64.h index 1778bc5971e7..80fe9264babf 100644 --- a/arch/sh/include/asm/pgtable_64.h +++ b/arch/sh/include/asm/pgtable_64.h @@ -64,6 +64,7 @@ static __inline__ void set_pte(pte_t *pteptr, pte_t pteval) #define pmd_clear(pmd_entry_p) (set_pmd((pmd_entry_p), __pmd(_PMD_EMPTY))) #define pmd_none(pmd_entry) (pmd_val((pmd_entry)) == _PMD_EMPTY) #define pmd_bad(pmd_entry) ((pmd_val(pmd_entry) & (~PAGE_MASK & ~_PAGE_USER)) != _KERNPG_TABLE) +#define pmd_large(pmd_entry) (0) #define pmd_page_vaddr(pmd_entry) \ ((unsigned long) __va(pmd_val(pmd_entry) & PAGE_MASK)) -- 2.20.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel