linux-kernel - Re: linux-next: origin tree build warning

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Date:	Mon, 22 Jun 2009 12:11:12 +0900
From:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
To:	sfr@...b.auug.org.au
Cc:	rdreier@...co.com, general@...ts.openfabrics.org,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	fujita.tomonori@....ntt.co.jp
Subject: Re: linux-next: origin tree build warning

On Mon, 22 Jun 2009 11:01:13 +1000
Stephen Rothwell <sfr@...b.auug.org.au> wrote:

> Hi all,
> 
> Today's linux-next build (powerpc ppc64_defconfig) produced this warning:
> 
> drivers/infiniband/hw/mthca/mthca_mr.c: In function 'mthca_arbel_write_mtt_seg':
> drivers/infiniband/hw/mthca/mthca_mr.c:358: warning: 'dma_sync_single' is deprecated (declared at /scratch/sfr/next/include/linux/dma-mapping.h:113)
> drivers/infiniband/hw/mthca/mthca_mr.c: In function 'mthca_arbel_map_phys_fmr':
> drivers/infiniband/hw/mthca/mthca_mr.c:810: warning: 'dma_sync_single' is deprecated (declared at /scratch/sfr/next/include/linux/dma-mapping.h:113)
> 
> Introduced by commit dbe6f1869188b6e04e38aa861dd198befb08bcd7
> ("dma-mapping: mark dma_sync_single and dma_sync_sg as deprecated").

Thanks, here's a fix for this:

http://marc.info/?l=linux-kernel&m=124347325819016&w=2


The patch doesn't change the driver functionally but the driver looks
broken wrt DMA synchronization. I guess that this issue is on Roland's
todo list:

http://marc.info/?l=linux-kernel&m=124354923710600&w=2
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