From: Martin K. Petersen <martin.petersen@oracle.com>
Date: Tue, 18 Sep 2012 16:19:30 +0000 (-0400)
Subject: [SCSI] Add a report opcode helper
X-Git-Tag: v3.7-rc7~19^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3c6bdaeab4fda6c9fdd5f3f5c610dea97bddf7d6;p=pandora-kernel.git

[SCSI] Add a report opcode helper

The REPORT SUPPORTED OPERATION CODES command can be used to query
whether a given opcode is supported by a device. Add a helper function
that allows us to look up commands.

We only issue RSOC if the device reports compliance with SPC-3 or
later. But to err on the side of caution we disable the command for ATA,
FireWire and USB.

Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---

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