summaryrefslogtreecommitdiff
path: root/arch/arm64
diff options
context:
space:
mode:
authorAndrey Ryabinin <aryabinin@virtuozzo.com>2015-11-17 18:47:08 +0300
committerCatalin Marinas <catalin.marinas@arm.com>2015-11-26 15:27:09 +0000
commitf1b9032f61c0412082a240cb7245f8b79e09ae8d (patch)
tree02f0f098843bb7fa3511e6967dd862e9db16b7c5 /arch/arm64
parent3b12acf4c999abaf93023af4bd78d931bce2520c (diff)
arm64: KASAN depends on !(ARM64_16K_PAGES && ARM64_VA_BITS_48)
On KASAN + 16K_PAGES + 48BIT_VA arch/arm64/mm/kasan_init.c: In function ‘kasan_early_init’: include/linux/compiler.h:484:38: error: call to ‘__compiletime_assert_95’ declared with attribute error: BUILD_BUG_ON failed: !IS_ALIGNED(KASAN_SHADOW_END, PGDIR_SIZE) _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) Currently KASAN will not work on 16K_PAGES and 48BIT_VA, so forbid such configuration to avoid above build failure. Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com> Reported-by: Suzuki K. Poulose <Suzuki.Poulose@arm.com> Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64')
-rw-r--r--arch/arm64/Kconfig2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 9ac16a482ff1..bf7de69a4126 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -49,7 +49,7 @@ config ARM64
select HAVE_ARCH_AUDITSYSCALL
select HAVE_ARCH_BITREVERSE
select HAVE_ARCH_JUMP_LABEL
- select HAVE_ARCH_KASAN if SPARSEMEM_VMEMMAP
+ select HAVE_ARCH_KASAN if SPARSEMEM_VMEMMAP && !(ARM64_16K_PAGES && ARM64_VA_BITS_48)
select HAVE_ARCH_KGDB
select HAVE_ARCH_SECCOMP_FILTER
select HAVE_ARCH_TRACEHOOK