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SubjectRe: [RESEND PATCH v10 1/6] arm: arm64: introduce CONFIG_HAVE_MEMBLOCK_PFN_VALID
On Fri, Jul 06, 2018 at 05:01:10PM +0800, Jia He wrote:
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index 42c090c..26d75f4 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -778,6 +778,10 @@ config ARCH_SELECT_MEMORY_MODEL
> config HAVE_ARCH_PFN_VALID
> def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
>
> +config HAVE_MEMBLOCK_PFN_VALID
> + def_bool y
> + depends on HAVE_ARCH_PFN_VALID
> +
> config HW_PERF_EVENTS
> def_bool y
> depends on ARM_PMU
> diff --git a/mm/Kconfig b/mm/Kconfig
> index 94af022..28fcf54 100644
> --- a/mm/Kconfig
> +++ b/mm/Kconfig
> @@ -137,6 +137,9 @@ config HAVE_MEMBLOCK_NODE_MAP
> config HAVE_MEMBLOCK_PHYS_MAP
> bool
>
> +config HAVE_MEMBLOCK_PFN_VALID
> + bool

Since you defined HAVE_MEMBLOCK_PFN_VALID here, do we need to define it
in the arch code as well? If kept it in the mm/Kconfig only, you could
just select it in the arch HAVE_ARCH_PFN_VALID entry:

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index d0a53cc6293a..cd230c77e122 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -787,6 +787,7 @@ config ARCH_FLATMEM_ENABLE

config HAVE_ARCH_PFN_VALID
def_bool ARCH_HAS_HOLES_MEMORYMODEL || !SPARSEMEM
+ select HAVE_MEMBLOCK_PFN_VALID

config HW_PERF_EVENTS
def_bool y
(similarly for arch/arm)

--
Catalin

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