Hi Pekka,

This build error will go away after the later commit 9b030cb.

tree:   git://github.com/penberg/linux.git for-next
head:   da9f26dd9bdbee60e0fd95eeb1ca2bffa5280709
commit: 208c4358dc4a8f0fe99e49eb8d21a869b01e7d34 [16/30] mm/slub: Use kmem_cache for the kmem_cache structure
config: i386-randconfig-k917 (attached as .config)

All related error/warning messages:

mm/slub.c: In function 'sysfs_slab_remove':
mm/slub.c:216:18: error: 'kmem_cache' undeclared (first use in this function)
mm/slub.c:216:18: note: each undeclared identifier is reported only once for each function it appears in

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0-DAY kernel build testing backend         Open Source Technology Centre
Fengguang Wu <wfg@linux.intel.com>                     Intel Corporation