From mboxrd@z Thu Jan 1 00:00:00 1970 From: lauraa@codeaurora.org (Laura Abbott) Date: Mon, 17 Jun 2013 10:29:12 -0700 Subject: [PATCHv2 1/3] arm: Add definitions for pte_mkexec/pte_mknexec In-Reply-To: <1371490154-11041-1-git-send-email-lauraa@codeaurora.org> References: <1371490154-11041-1-git-send-email-lauraa@codeaurora.org> Message-ID: <1371490154-11041-2-git-send-email-lauraa@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Other architectures define pte_mkexec to mark a pte as executable. Add pte_mkexec for ARM to get the same functionality. Although no other architectures currently define it, also add pte_mknexec to explicitly allow a pte to be marked as non executable. Signed-off-by: Laura Abbott --- arch/arm/include/asm/pgtable.h | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h index 9bcd262..135381b 100644 --- a/arch/arm/include/asm/pgtable.h +++ b/arch/arm/include/asm/pgtable.h @@ -251,6 +251,8 @@ PTE_BIT_FUNC(mkclean, &= ~L_PTE_DIRTY); PTE_BIT_FUNC(mkdirty, |= L_PTE_DIRTY); PTE_BIT_FUNC(mkold, &= ~L_PTE_YOUNG); PTE_BIT_FUNC(mkyoung, |= L_PTE_YOUNG); +PTE_BIT_FUNC(mkexec, &= ~L_PTE_XN); +PTE_BIT_FUNC(mknexec, |= L_PTE_XN); static inline pte_t pte_mkspecial(pte_t pte) { return pte; } -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation