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    Subject[RFC PATCH 3/3] Change DEBUG_PAGEALLOC dependency on ARCH_SUPPORTS_DEBUG_PAGEALLOC
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    DEBUG_PAGEALLOC currently depends on ARCH_SUPPORTS_DEBUG_PAGEALLOC.
    However, it is selected by PAGE_POISONING which depends on
    !ARCH_SUPPORTS_DEBUG_PAGEALLOC.

    This patch changes the DEBUG_PAGEALLOC entry so that the dependency is
    moved to the definition line rather than having an explicit "depends on"
    line.

    Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
    Cc: Akinobu Mita <akinobu.mita@gmail.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Linus Torvalds <torvalds@linux-foundation.org>
    ---
    mm/Kconfig.debug | 4 ++--
    1 files changed, 2 insertions(+), 2 deletions(-)

    diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug
    index af7cfb4..983375d 100644
    --- a/mm/Kconfig.debug
    +++ b/mm/Kconfig.debug
    @@ -1,6 +1,6 @@
    config DEBUG_PAGEALLOC
    - bool "Debug page memory allocations"
    - depends on DEBUG_KERNEL && ARCH_SUPPORTS_DEBUG_PAGEALLOC
    + bool "Debug page memory allocations" if ARCH_SUPPORTS_DEBUG_PAGEALLOC
    + depends on DEBUG_KERNEL
    depends on !HIBERNATION || !PPC && !SPARC
    depends on !KMEMCHECK
    ---help---


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