From: Sreekanth Reddy <sreekanth.reddy@avagotech.com>
Date: Fri, 12 Sep 2014 10:05:21 +0000 (+0530)
Subject: mpt2sas: Avoid type casting for direct I/O commands
X-Git-Tag: fixes-for-v3.18-merge-window~25^2^2~126
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=daeaa9df92bd742f4e6d4d6039d689277a8e31bd;p=pandora-kernel.git

mpt2sas: Avoid type casting for direct I/O commands

A type casting error caused the max volume LBA to be truncated from 64
to 32 bits. The virtual LBA would also get truncated to 32 bits in the
case of a 16-byte READ/WRITE command.

Rewrite entire function to get rid of code duplication and type casts.
Use get/put_unaligned wrappers to extract and replace the LBA field in
the MPI request CDB.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Tested-by: Sreekanth Reddy <Sreekanth.Reddy@avagotech.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---

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