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Message-Id: <1479431816-5028-2-git-send-email-labbott@redhat.com>
Date: Thu, 17 Nov 2016 17:16:51 -0800
From: Laura Abbott <labbott@...hat.com>
To: Thomas Gleixner <tglx@...utronix.de>,
Ingo Molnar <mingo@...hat.com>,
"H. Peter Anvin" <hpa@...or.com>,
Mark Rutland <mark.rutland@....com>,
Ard Biesheuvel <ard.biesheuvel@...aro.org>,
Will Deacon <will.deacon@....com>,
Catalin Marinas <catalin.marinas@....com>
Cc: Laura Abbott <labbott@...hat.com>, x86@...nel.org,
linux-kernel@...r.kernel.org, linux-mm@...ck.org,
Andrew Morton <akpm@...ux-foundation.org>,
Marek Szyprowski <m.szyprowski@...sung.com>,
Joonsoo Kim <iamjoonsoo.kim@....com>,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCHv3 1/6] lib/Kconfig.debug: Add ARCH_HAS_DEBUG_VIRTUAL
DEBUG_VIRTUAL currently depends on DEBUG_KERNEL && X86. arm64 is getting
the same support. Rather than add a list of architectures, switch this
to ARCH_HAS_DEBUG_VIRTUAL and let architectures select it as
appropriate.
Suggested-by: Mark Rutland <mark.rutland@....com>
Signed-off-by: Laura Abbott <labbott@...hat.com>
---
v3: No change, x86 maintainers please ack if you are okay with this.
---
arch/x86/Kconfig | 1 +
lib/Kconfig.debug | 5 ++++-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index bada636..f533321 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -23,6 +23,7 @@ config X86
select ARCH_CLOCKSOURCE_DATA
select ARCH_DISCARD_MEMBLOCK
select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI
+ select ARCH_HAS_DEBUG_VIRTUAL
select ARCH_HAS_DEVMEM_IS_ALLOWED
select ARCH_HAS_ELF_RANDOMIZE
select ARCH_HAS_FAST_MULTIPLIER
diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index b01e547..5050530 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -603,9 +603,12 @@ config DEBUG_VM_PGFLAGS
If unsure, say N.
+config ARCH_HAS_DEBUG_VIRTUAL
+ bool
+
config DEBUG_VIRTUAL
bool "Debug VM translations"
- depends on DEBUG_KERNEL && X86
+ depends on DEBUG_KERNEL && ARCH_HAS_DEBUG_VIRTUAL
help
Enable some costly sanity checks in virtual to page code. This can
catch mistakes with virt_to_page() and friends.
--
2.7.4
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