From: Samuel Ortiz <sameo@linux.intel.com>
Date: Tue, 10 Apr 2012 17:43:18 +0000 (+0200)
Subject: NFC: pn533 Rx chaining support
X-Git-Tag: v3.5-rc1~109^2~410^2~86
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6ff73fd239ff5d6f1ebfe5b5f7f560d9fad7d749;p=pandora-kernel.git

NFC: pn533 Rx chaining support

When buffers on the receiption path exceed 262 bytes, the pn533 uses
a chaining mechanism where the initiator has to send NULL data frames
to fetch the remaining frames.
We do that from a workqueue context while holding the cmd lock. Once the
MI bit is gone, we aggregate the queued received skbs.

Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
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