From: Russ Gorby <russ.gorby@intel.com>
Date: Mon, 13 Aug 2012 12:43:36 +0000 (+0100)
Subject: n_gsm: uplink SKBs accumulate on list
X-Git-Tag: v3.2.32~139
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=5c6bb8b0c87d472cce008255db25c0ae61e86d52;p=pandora-kernel.git

n_gsm: uplink SKBs accumulate on list

commit 192b6041e75bb4a2aae73834037038cea139a92d upstream.

gsm_dlci_data_kick will not call any output function if tx_bytes > THRESH_LO
furthermore it will call the output function only once if tx_bytes == 0
If the size of the IP writes are on the order of THRESH_LO
we can get into a situation where skbs accumulate on the outbound list
being starved for events to call the output function.

gsm_dlci_data_kick now calls the sweep function when tx_bytes==0

Signed-off-by: Russ Gorby <russ.gorby@intel.com>
Tested-by: Kappel, LaurentX <laurentx.kappel@intel.com>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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