The patch titled
Subject: mm: make DEBUG_WX depdendent on GENERIC_PTDUMP
has been added to the -mm mm-unstable branch. Its filename is
mm-make-debug_wx-depdendent-on-generic_ptdump.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-make-debug_wx-depdendent-on-generic_ptdump.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Subject: mm: make DEBUG_WX depdendent on GENERIC_PTDUMP
Date: Mon, 17 Feb 2025 09:52:19 +0530
DEBUG_WX selects PTDUMP_CORE without even ensuring that the given platform
implements GENERIC_PTDUMP. This problem has been latent until now, as all
the platforms subscribing ARCH_HAS_DEBUG_WX also subscribe GENERIC_PTDUMP.
Link: https://lkml.kernel.org/r/20250217042220.32920-5-anshuman.khandual@xxxxxxx
Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx>
Reviewed-by: Steven Price <steven.price@xxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Cc: Heiko Carstens <hca@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Cc: Madhavan Srinivasan <maddy@xxxxxxxxxxxxx>
Cc: Marc Zyngier <maz@xxxxxxxxxx>
Cc: Mark Rutland <mark.rutland@xxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Nicholas Piggin <npiggin@xxxxxxxxx>
Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx>
Cc: Paul Walmsley <paul.walmsley@xxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/Kconfig.debug | 1 +
1 file changed, 1 insertion(+)
--- a/mm/Kconfig.debug~mm-make-debug_wx-depdendent-on-generic_ptdump
+++ a/mm/Kconfig.debug
@@ -186,6 +186,7 @@ config ARCH_HAS_DEBUG_WX
config DEBUG_WX
bool "Warn on W+X mappings at boot"
depends on ARCH_HAS_DEBUG_WX
+ depends on GENERIC_PTDUMP
depends on MMU
select PTDUMP_CORE
help
_
Patches currently in -mm which might be from anshuman.khandual@xxxxxxx are
configs-drop-generic_ptdump-from-debugconfig.patch
arch-powerpc-drop-generic_ptdump-from-mpc885_ads_defconfig.patch
docs-arm64-drop-ptdump-config-options-from-ptdumprst.patch
mm-make-debug_wx-depdendent-on-generic_ptdump.patch
mm-rename-generic_ptdump-and-ptdump_core.patch
