From 24e988c7fd1ee701ea78fd138ed309e5f5f207b4 Mon Sep 17 00:00:00 2001
From: Anshuman Khandual <anshuman.khandual@arm.com>
Date: Thu, 24 Mar 2022 18:14:05 -0700
Subject: [PATCH] mm: generalize ARCH_HAS_FILTER_PGPROT

References: jsc#PED-1981
Patch-mainline: v5.18-rc1
Git-commit: 24e988c7fd1ee701ea78fd138ed309e5f5f207b4

ARCH_HAS_FILTER_PGPROT config has duplicate definitions on platforms that
subscribe it.  Instead make it a generic config option which can be
selected on applicable platforms when required.

Link: https://lkml.kernel.org/r/1643004823-16441-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Acked-by: Michal Suchanek <msuchanek@suse.de>
---
 arch/x86/Kconfig | 3 ---
 mm/Kconfig       | 3 +++
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -337,9 +337,6 @@ config GENERIC_CALIBRATE_DELAY
 config ARCH_HAS_CPU_RELAX
 	def_bool y
 
-config ARCH_HAS_FILTER_PGPROT
-	def_bool y
-
 config HAVE_SETUP_PER_CPU_AREA
 	def_bool y
 
diff --git a/mm/Kconfig b/mm/Kconfig
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -762,6 +762,9 @@ config ARCH_HAS_CURRENT_STACK_POINTER
 config ARCH_HAS_CACHE_LINE_SIZE
 	bool
 
+config ARCH_HAS_FILTER_PGPROT
+	bool
+
 config ARCH_HAS_PTE_DEVMAP
 	bool
 
-- 
2.35.3