From: Christophe Leroy Date: Tue, 9 Oct 2018 13:51:47 +0000 (+0000) Subject: powerpc/mm: don't use _PAGE_EXEC in book3s/32 X-Git-Tag: v4.20-rc1~97^2~84 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=d81e6f8b7c6600c891cd133312061d23d4e6690c;p=linux.git powerpc/mm: don't use _PAGE_EXEC in book3s/32 book3s/32 doesn't define _PAGE_EXEC, so no need to use it. All other platforms define _PAGE_EXEC so no need to check it is not NUL when not book3s/32. Reviewed-by: Aneesh Kumar K.V Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman --- diff --git a/arch/powerpc/include/asm/book3s/32/pgtable.h b/arch/powerpc/include/asm/book3s/32/pgtable.h index 7a9f0ed599ff..3127cc529aa1 100644 --- a/arch/powerpc/include/asm/book3s/32/pgtable.h +++ b/arch/powerpc/include/asm/book3s/32/pgtable.h @@ -234,7 +234,7 @@ static inline void __ptep_set_access_flags(struct vm_area_struct *vma, int psize) { unsigned long set = pte_val(entry) & - (_PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_RW | _PAGE_EXEC); + (_PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_RW); unsigned long clr = ~pte_val(entry) & _PAGE_RO; pte_update(ptep, clr, set); diff --git a/arch/powerpc/mm/pgtable.c b/arch/powerpc/mm/pgtable.c index aee04b209b51..f97d9c3760e3 100644 --- a/arch/powerpc/mm/pgtable.c +++ b/arch/powerpc/mm/pgtable.c @@ -73,7 +73,7 @@ static struct page *maybe_pte_to_page(pte_t pte) return page; } -#if defined(CONFIG_PPC_STD_MMU) || _PAGE_EXEC == 0 +#ifdef CONFIG_PPC_BOOK3S /* Server-style MMU handles coherency when hashing if HW exec permission * is supposed per page (currently 64-bit only). If not, then, we always @@ -106,7 +106,7 @@ static pte_t set_access_flags_filter(pte_t pte, struct vm_area_struct *vma, return pte; } -#else /* defined(CONFIG_PPC_STD_MMU) || _PAGE_EXEC == 0 */ +#else /* CONFIG_PPC_BOOK3S */ /* Embedded type MMU with HW exec support. This is a bit more complicated * as we don't have two bits to spare for _PAGE_EXEC and _PAGE_HWEXEC so @@ -179,7 +179,7 @@ static pte_t set_access_flags_filter(pte_t pte, struct vm_area_struct *vma, return __pte(pte_val(pte) | _PAGE_EXEC); } -#endif /* !(defined(CONFIG_PPC_STD_MMU) || _PAGE_EXEC == 0) */ +#endif /* CONFIG_PPC_BOOK3S */ /* * set_pte stores a linux PTE into the linux page table.