From: Tejun Heo <tj@kernel.org>
Date: Fri, 7 Mar 2014 15:24:50 +0000 (-0500)
Subject: staging/fwserial: don't use PREPARE_WORK
X-Git-Tag: v3.15-rc1~162^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6c256cb6467e60b54f41170076c7f625e231c282;p=pandora-kernel.git

staging/fwserial: don't use PREPARE_WORK

PREPARE_[DELAYED_]WORK() are being phased out.  They have few users
and a nasty surprise in terms of reentrancy guarantee as workqueue
considers work items to be different if they don't have the same work
function.

fwtty_peer->work is multiplexed with multiple work functions.
Introduce fwserial_peer_workfn() which invokes fwtty_peer->workfn and
always use it as the work function and update the users to set the
->workfn field instead of overriding the work function using
PREPARE_WORK().

It would probably be best to route this with other related updates
through the workqueue tree.

Compile tested.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Peter Hurley <peter@hurleysoftware.com>
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