mm: generalize ARCH_HAS_FILTER_PGPROT

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>

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index b037fe7..10e4c33 100644 (file)
--- 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 ARCH_HIBERNATION_POSSIBLE
        def_bool y
 

diff --git a/mm/Kconfig b/mm/Kconfig
index 761f502..034d879 100644 (file)
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -762,6 +762,9 @@ config ARCH_HAS_CURRENT_STACK_POINTER
          register alias named "current_stack_pointer", this config can be
          selected.
 
+config ARCH_HAS_FILTER_PGPROT
+       bool
+
 config ARCH_HAS_PTE_DEVMAP
        bool