linux-next: build failure after merge of the final tree (tip/s390trees related)

From: Stephen Rothwell
Date: Thu Oct 18 2012 - 02:22:05 EST


Hi all,

After merging the final tree, today's linux-next build (s390 allyesconfig)
failed like this:

mm/huge_memory.c:1424:2: error: implicit declaration of function 'pmd_pgprot' [-Werror=implicit-function-declaration]
mm/huge_memory.c:1424:7: error: incompatible types when assigning to type 'pgprot_t' from type 'int'

(see http://kisskb.ellerman.id.au/kisskb/buildresult/7383823/)

Caused by commit 35d3d3427314 ("s390/thp: select
HAVE_ARCH_TRANSPARENT_HUGEPAGE") from the s390 tree interacting with
commit 93c9d633bd9e ("mm/thp: Preserve pgprot across huge page split")
from the tip tree.

N.B. Mips also selects HAVE_ARCH_TRANSPARENT_HUGEPAGE as of commit
e21a828a1bba ("MIPS: Transparent Huge Pages support") from the mips tree
and so will be broken in some configs now as well.

Anyone have suggested merge fix patches I can apply?
--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx

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