Hi Paul,

On Wednesday, June 27, 2012 9:46 PM Paul Gortmaker wrote:

This commit in linux-next:

commit feb930cb9beb75cbe1d1e798870599c3aa1b93ec
Author: Marek Szyprowski [off-list ref]
Date:   Fri Jun 8 12:08:32 2012 +0200

    ARM: dma-mapping: remove custom consistent dma region

seems to break the at91x40_defconfig (according to git bisect).

  CC      arch/arm/mm/dma-mapping.o
arch/arm/mm/dma-mapping.c: In function '__dma_alloc':
arch/arm/mm/dma-mapping.c:575: error: macro "__alloc_from_pool" requires 4 arguments, but only
2 given
arch/arm/mm/dma-mapping.c:575: error: '__alloc_from_pool' undeclared (first use in this
function)
arch/arm/mm/dma-mapping.c:575: error: (Each undeclared identifier is reported only once
arch/arm/mm/dma-mapping.c:575: error: for each function it appears in.)
make[2]: *** [arch/arm/mm/dma-mapping.o] Error 1
make[1]: *** [arch/arm/mm/dma-mapping.o] Error 2

See http://kisskb.ellerman.id.au/kisskb/buildresult/6596769/ for a full log.

Please have a look when you get a chance.

Thanks for the report! I've added a fix to my dma-mapping-next branch, the issue should go 
away with the next update of linus-next tree.

Best regards
-- 
Marek Szyprowski
Samsung Poland R&D Center