From: Vlad Yasevich <vyasevic@redhat.com>
Date: Tue, 2 Apr 2013 21:10:07 +0000 (-0400)
Subject: net: count hw_addr syncs so that unsync works properly.
X-Git-Tag: v3.9-rc6~9^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4543fbefe6e06a9e40d9f2b28d688393a299f079;p=pandora-kernel.git

net: count hw_addr syncs so that unsync works properly.

A few drivers use dev_uc_sync/unsync to synchronize the
address lists from master down to slave/lower devices.  In
some cases (bond/team) a single address list is synched down
to multiple devices.  At the time of unsync, we have a leak
in these lower devices, because "synced" is treated as a
boolean and the address will not be unsynced for anything after
the first device/call.

Treat "synced" as a count (same as refcount) and allow all
unsync calls to work.

Signed-off-by: Vlad Yasevich <vyasevic@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

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