On Fri, Jul 24, 2015 at 09:27:53AM -0700, Jim Davis wrote:
> warning: (HWPOISON_INJECT && MEM_SOFT_DIRTY && IDLE_PAGE_TRACKING)
> selects PROC_PAGE_MONITOR which has unmet direct dependencies (PROC_FS
> && MMU)
>
> mm/built-in.o: In function `page_ext_init_flatmem':
> (.init.text+0x30ef): undefined reference to `page_idle_ops'
> mm/built-in.o: In function `page_ext_init_flatmem':
> (.init.text+0x3172): undefined reference to `page_idle_ops'
This has already been reported by the kbuild test robot, see:
[mmotm:master 260/385] warning: (HWPOISON_INJECT && ..) selects
PROC_PAGE_MONITOR which has unmet direct dependencies (PROC_FS && ..)
It should be fixed by:
From: Vladimir Davydov <vdavy...@parallels.com>
Subject: [PATCH] mm/Kconfig: fix IDLE_PAGE_TRACKING dependencies
Fixes: proc-add-kpageidle-file
Signed-off-by: Vladimir Davydov <vdavy...@parallels.com>
diff --git a/mm/Kconfig b/mm/Kconfig
index db817e2c2ec8..a1de09926171 100644
--- a/mm/Kconfig
+++ b/mm/Kconfig
@@ -657,6 +657,7 @@ config DEFERRED_STRUCT_PAGE_INIT
config IDLE_PAGE_TRACKING
bool "Enable idle page tracking"
+ depends on PROC_FS && MMU
select PROC_PAGE_MONITOR
select PAGE_EXTENSION if !64BIT
help
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