[PATCHv3 1/6] lib/Kconfig.debug: Add ARCH_HAS_DEBUG_VIRTUAL
From: Laura Abbott <hidden>
Date: 2016-11-18 01:17:09
Also in:
linux-mm, lkml
Subsystem:
library code, the rest, x86 architecture (32-bit and 64-bit) · Maintainers:
Andrew Morton, Linus Torvalds, Thomas Gleixner, Ingo Molnar, Borislav Petkov, Dave Hansen
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@arm.com> Signed-off-by: Laura Abbott <redacted> --- 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