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authorDaniel Borkmann <daniel@iogearbox.net>2017-02-21 16:09:33 +0100
committerDavid S. Miller <davem@davemloft.net>2017-02-21 13:30:13 -0500
commitd2852a2240509e512712e25de2d0796cda435ecb (patch)
tree1a7b8c0311150eb57ab62857001f1895560200c8 /arch/arm64/Kconfig
parentnet: napi_watchdog() can use napi_schedule_irqoff() (diff)
downloadlinux-dev-d2852a2240509e512712e25de2d0796cda435ecb.tar.xz
linux-dev-d2852a2240509e512712e25de2d0796cda435ecb.zip
arch: add ARCH_HAS_SET_MEMORY config
Currently, there's no good way to test for the presence of set_memory_ro/rw/x/nx() helpers implemented by archs such as x86, arm, arm64 and s390. There's DEBUG_SET_MODULE_RONX and DEBUG_RODATA, however both don't really reflect that: set_memory_*() are also available even when DEBUG_SET_MODULE_RONX is turned off, and DEBUG_RODATA is set by parisc, but doesn't implement above functions. Thus, add ARCH_HAS_SET_MEMORY that is selected by mentioned archs, where generic code can test against this. This also allows later on to move DEBUG_SET_MODULE_RONX out of the arch specific Kconfig to define it only once depending on ARCH_HAS_SET_MEMORY. Suggested-by: Laura Abbott <labbott@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/arm64/Kconfig')
-rw-r--r--arch/arm64/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 111742126897..1853405a897e 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -12,6 +12,7 @@ config ARM64
select ARCH_HAS_GCOV_PROFILE_ALL
select ARCH_HAS_GIGANTIC_PAGE
select ARCH_HAS_KCOV
+ select ARCH_HAS_SET_MEMORY
select ARCH_HAS_SG_CHAIN
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
select ARCH_USE_CMPXCHG_LOCKREF