From: Matthew Wilcox <matthew.r.wilcox@intel.com>
Date: Tue, 28 May 2013 20:46:46 +0000 (-0400)
Subject: NVMe: Use dma_set_mask() correctly
X-Git-Tag: v3.10-rc6~26^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cf9f123b38345b2c2777e642eb9bb561f4b7de91;p=pandora-kernel.git

NVMe: Use dma_set_mask() correctly

In some circumstances setting a 64-bit DMA mask can fail, as explained
in Documentation/DMA-API-HOWTO.txt.  Use the recommended code sequence
to set a 32-bit DMA mask if setting a 64-bit DMA mask fails.

Reported-by: Chayan Biswas <Chayan.Biswas@sandisk.com>
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
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