From 0b1c524caaae2428b20e714297243e5551251eb5 Mon Sep 17 00:00:00 2001 From: Christophe Leroy Date: Thu, 9 Jan 2020 08:25:25 +0000 Subject: powerpc/32: refactor pmd_offset(pud_offset(pgd_offset... At several places pmd pointer is retrieved through the same action: pmd = pmd_offset(pud_offset(pgd_offset(mm, addr), addr), addr); or pmd = pmd_offset(pud_offset(pgd_offset_k(addr), addr), addr); Refactor this by implementing two helpers pmd_ptr() and pmd_ptr_k() This will help when adding the p4d level. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/7b065c5be35726af4066cab238ee35cabceda1fa.1578558199.git.christophe.leroy@c-s.fr --- arch/powerpc/include/asm/pgtable.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'arch/powerpc/include/asm/pgtable.h') diff --git a/arch/powerpc/include/asm/pgtable.h b/arch/powerpc/include/asm/pgtable.h index 8cc543ed114c..22bf7bb666a7 100644 --- a/arch/powerpc/include/asm/pgtable.h +++ b/arch/powerpc/include/asm/pgtable.h @@ -41,6 +41,18 @@ struct mm_struct; #ifndef __ASSEMBLY__ +#ifdef CONFIG_PPC32 +static inline pmd_t *pmd_ptr(struct mm_struct *mm, unsigned long va) +{ + return pmd_offset(pud_offset(pgd_offset(mm, va), va), va); +} + +static inline pmd_t *pmd_ptr_k(unsigned long va) +{ + return pmd_offset(pud_offset(pgd_offset_k(va), va), va); +} +#endif + #include /* Keep these as a macros to avoid include dependency mess */ -- cgit