From: Tejun Heo <htejun@gmail.com>
Date: Sun, 12 Mar 2006 03:34:35 +0000 (+0900)
Subject: [PATCH] libata: check Word 88 validity in ata_id_xfer_mask()
X-Git-Tag: v2.6.17-rc1~1182^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fb21f0d0ec7e31cc814165e1a9d2662d9c9dd980;p=pandora-kernel.git

[PATCH] libata: check Word 88 validity in ata_id_xfer_mask()

Check bit 2 of Word 53 for Word 88 validity before using Word 88 to
determine UDMA mask.  Note that the original xfer mask implementation
using ata_get_mode_mask() didn't consider bit 2 of Word 53.  This
patch introduces different (correct) behavior.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
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