[PATCH 2/3] arm64: simplify pmd_special and pmd_mkspecial
COLD23d
From: Jinjiang Tu <hidden>
Date: 2026-09-09 09:28:47
Also in:
linux-mm
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
Use pte_special() and pte_mkspecial() helper to simplify pmd_special() and pmd_mkspecial(), and kill unused set_pmd_bit() and clear_pmd_bit() helper. Signed-off-by: Jinjiang Tu <redacted> --- arch/arm64/include/asm/pgtable.h | 19 ++----------------- 1 file changed, 2 insertions(+), 17 deletions(-)
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 6000905a2e86..427ea3d2bac7 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h@@ -243,18 +243,6 @@ static inline pte_t set_pte_bit(pte_t pte, pgprot_t prot) return pte; } -static inline pmd_t clear_pmd_bit(pmd_t pmd, pgprot_t prot) -{ - pmd_val(pmd) &= ~pgprot_val(prot); - return pmd; -} - -static inline pmd_t set_pmd_bit(pmd_t pmd, pgprot_t prot) -{ - pmd_val(pmd) |= pgprot_val(prot); - return pmd; -} - static inline pte_t pte_mkwrite_novma(pte_t pte) { pte = set_pte_bit(pte, __pgprot(PTE_WRITE));
@@ -619,11 +607,8 @@ static inline pmd_t pmd_mkhuge(pmd_t pmd) } #ifdef CONFIG_ARCH_SUPPORTS_PMD_PFNMAP -#define pmd_special(pte) (!!((pmd_val(pte) & PTE_SPECIAL))) -static inline pmd_t pmd_mkspecial(pmd_t pmd) -{ - return set_pmd_bit(pmd, __pgprot(PTE_SPECIAL)); -} +#define pmd_special(pmd) pte_special(pmd_pte(pmd)) +#define pmd_mkspecial(pmd) pte_pmd(pte_mkspecial(pmd_pte(pmd))) #endif #define __pmd_to_phys(pmd) __pte_to_phys(pmd_pte(pmd))
--
2.43.0