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Date:   Wed, 12 May 2021 15:28:06 +1000
From:   Stephen Rothwell <sfr@canb.auug.org.au>
To:     Andrew Morton <akpm@linux-foundation.org>
Cc:     Randy Dunlap <rdunlap@infradead.org>,
        Waiman Long <longman@redhat.com>,
        Vlastimil Babka <vbabka@suse.cz>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux Next Mailing List <linux-next@vger.kernel.org>
Subject: linux-next: build failure after merge of the akpm-current tree
Message-ID: <20210512152806.2492ca42@canb.auug.org.au>
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Hi all,

As Randy also reported ...

After merging the akpm-current tree, today's linux-next build (powerpc
ppc64_defconfig) failed like this:

mm/slab_common.c:764:8: error: array index in initializer exceeds array bou=
nds
  764 |  .name[KMALLOC_RECLAIM] =3D "kmalloc-rcl-" #__short_size, \
      |        ^~~~~~~~~~~~~~~
mm/slab_common.c:776:2: note: in expansion of macro 'INIT_KMALLOC_INFO'
  776 |  INIT_KMALLOC_INFO(0, 0),
      |  ^~~~~~~~~~~~~~~~~
mm/slab_common.c:756:39: error: array index in initializer exceeds array bo=
unds
  756 | #define KMALLOC_CGROUP_NAME(sz) .name[KMALLOC_CGROUP] =3D "kmalloc-=
cg-" #sz,
      |                                       ^~~~~~~~~~~~~~
mm/slab_common.c:765:2: note: in expansion of macro 'KMALLOC_CGROUP_NAME'
  765 |  KMALLOC_CGROUP_NAME(__short_size)   \
      |  ^~~~~~~~~~~~~~~~~~~

and more

Caused by commits

  4d57437a3d3c ("mm: memcg/slab: create a new set of kmalloc-cg-<n> caches")
  0727bf117622 ("mm: memcg/slab: don't create kmalloc-cg caches with cgroup=
.memory=3Dnokmem")
  d795c307bd3a ("mm: memcg/slab: disable cache merging for KMALLOC_NORMAL c=
aches")

At least they are the commits I have reverted to fix this.

--=20
Cheers,
Stephen Rothwell

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