From: Russell King <rmk+kernel@arm.linux.org.uk>
Date: Tue, 8 Jul 2014 11:40:38 +0000 (+0100)
Subject: net: fec: quiesce packet processing when taking link down in fec_enet_adjust_link()
X-Git-Tag: omap-for-v3.17/fixes-against-rc2~149^2~202^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f208ce10046888052d3a5e9fc88b7c1b819877d2;p=pandora-kernel.git

net: fec: quiesce packet processing when taking link down in fec_enet_adjust_link()

When the link goes down, the adjust_link method will be called, but
there is no synchronisation to ensure that we won't be processing some
last remaining packets via the NAPI handlers while performing a reset of
the device.

Add the necessary synchronisation to ensure that packet processing
is complete before we stop and reset the FEC.

Acked-by: Fugang Duan <B38611@freescale.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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