(.init.text+0x2a48): undefined reference to `memcg_init_kmem_cache

Hi Glauber,

FYI, kernel build failed on

tree:   git://git.kernel.org/pub/scm/linux/kernel/git/glommer/memcg.git kmemcg-slab
head:   a1fe65d2214cd61722cf29f35822c94b1d2d7c09
commit: a1fe65d2214cd61722cf29f35822c94b1d2d7c09 [63/63] temporary fix to get the benchmark in place.
config: m32r-m32104ut_defconfig

All related error/warning messages:

mm/built-in.o: In function `kmem_cache_init_late':
(.init.text+0x2a48): undefined reference to `memcg_init_kmem_cache' --
mm/slab.c:815:13: warning: '__slab_error' defined but not used [-Wunused-function]

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0-DAY kernel build testing backend Open Source Technology Centre
Fengguang Wu <[email protected]> Intel Corporation