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From: Anshuman Khandual <anshuman.khandual@arm.com>
To: linux-mm@kvack.org
Cc: Anshuman Khandual <anshuman.khandual@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-arm-kernel@lists.infradead.org, x86@kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH] mm: Generalize ARCH_HAS_FILTER_PGPROT
Date: Mon, 24 Jan 2022 11:43:43 +0530	[thread overview]
Message-ID: <1643004823-16441-1-git-send-email-anshuman.khandual@arm.com> (raw)

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.

Cc: 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>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-arm-kernel@lists.infradead.org
Cc: x86@kernel.org
Cc: linux-mm@kvack.org
Cc: linux-kernel@vger.kernel.org
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
---
This applies on v5.17-rc1

 arch/arm64/Kconfig | 4 +---
 arch/x86/Kconfig   | 3 ---
 mm/Kconfig         | 3 +++
 3 files changed, 4 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 6978140edfa4..cad609528e58 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -23,6 +23,7 @@ config ARM64
 	select ARCH_HAS_DMA_PREP_COHERENT
 	select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
 	select ARCH_HAS_FAST_MULTIPLIER
+	select ARCH_HAS_FILTER_PGPROT
 	select ARCH_HAS_FORTIFY_SOURCE
 	select ARCH_HAS_GCOV_PROFILE_ALL
 	select ARCH_HAS_GIGANTIC_PAGE
@@ -1166,9 +1167,6 @@ config HW_PERF_EVENTS
 	def_bool y
 	depends on ARM_PMU
 
-config ARCH_HAS_FILTER_PGPROT
-	def_bool y
-
 # Supported by clang >= 7.0
 config CC_HAVE_SHADOW_CALL_STACK
 	def_bool $(cc-option, -fsanitize=shadow-call-stack -ffixed-x18)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index ebe8fc76949a..5f33a10d3dcc 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -332,9 +332,6 @@ config GENERIC_CALIBRATE_DELAY
 config ARCH_HAS_CPU_RELAX
 	def_bool y
 
-config ARCH_HAS_FILTER_PGPROT
-	def_bool y
-
 config ARCH_HIBERNATION_POSSIBLE
 	def_bool y
 
diff --git a/mm/Kconfig b/mm/Kconfig
index 3326ee3903f3..257ed9c86de3 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -744,6 +744,9 @@ config IDLE_PAGE_TRACKING
 config ARCH_HAS_CACHE_LINE_SIZE
 	bool
 
+config ARCH_HAS_FILTER_PGPROT
+	bool
+
 config ARCH_HAS_PTE_DEVMAP
 	bool
 
-- 
2.25.1


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             reply	other threads:[~2022-01-24  6:15 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-24  6:13 Anshuman Khandual [this message]
  -- strict thread matches above, loose matches on Subject: below --
2022-01-10  6:41 [PATCH] mm: Generalize ARCH_HAS_FILTER_PGPROT Anshuman Khandual
2022-01-10 10:52 ` Catalin Marinas
2022-01-10 10:52   ` Catalin Marinas
2022-01-10 11:43   ` Anshuman Khandual
2022-01-10 11:43     ` Anshuman Khandual
2022-01-11 10:19 ` Catalin Marinas
2022-01-11 10:19   ` Catalin Marinas

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