From: Borislav Petkov <petkovbb@gmail.com>
Date: Sat, 2 May 2009 08:26:12 +0000 (+0200)
Subject: ide-atapi: add a buffer-arg to ide_queue_pc_tail
X-Git-Tag: v2.6.31-rc1~103^2~19^2~10
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b13345f39dadbabdabaf8819cf6df26913da9e8d;p=pandora-kernel.git

ide-atapi: add a buffer-arg to ide_queue_pc_tail

This is in preparation of removing ide_atapi_pc. Expose the buffer as an
argument to ide_queue_pc_tail with later replacing it with local buffer
or even kmalloc'ed one if needed due to stack usage constraints.

Also, add the possibility of passing a NULL-ptr buffer for cmds which
don't transfer data besides the cdb. While at it, switch to local buffer
in idetape_get_mode_sense_results().

There should be no functional change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
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