From: Dave Hansen <dave@linux.vnet.ibm.com>
Date: Tue, 21 Apr 2009 23:43:27 +0000 (-0700)
Subject: [SCSI] fix sign extension with 1.5TB usb-storage LBD=y
X-Git-Tag: v2.6.30-rc5~53^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8f76d151b010980d137bfdc736d1d8f64b489165;p=pandora-kernel.git

[SCSI] fix sign extension with 1.5TB usb-storage LBD=y

Shifting an unsigned char implicitly casts it to a signed int.  This
caused 'lba' to sign-extend and Linux would then try READ CAPACITY 16
which was not supported by at least one drive.  Using the
get_unaligned_be*() helpers keeps us from having to worry about how the
extension might occur.

Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
Reviewed-by: Matthew Wilcox <willy@linux.intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---

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