From: Florian Fainelli <florian@openwrt.org>
Date: Wed, 7 Apr 2010 23:50:58 +0000 (-0700)
Subject: r6040: fix r6040_multicast_list
X-Git-Tag: v2.6.27.55~8
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1ad2b6fea2210ab7ddd3e9e48dfad01ce8e84a11;p=pandora-kernel.git

r6040: fix r6040_multicast_list

commit 3bcf8229a8c49769e48d3e0bd1e20d8e003f8106 upstream.

As reported in <https://bugzilla.kernel.org/show_bug.cgi?id=15355>, r6040_
multicast_list currently crashes. This is due a wrong maximum of multicast
entries. This patch fixes the following issues with multicast:

- number of maximum entries if off-by-one (4 instead of 3)

- the writing of the hash table index is not necessary and leads to invalid
values being written into the MCR1 register, so the MAC is simply put in a non
coherent state

- when we exceed the maximum number of mutlticast address, writing the
broadcast address should be done in registers MID_1{L,M,H} instead of
MID_O{L,M,H}, otherwise we would loose the adapter's MAC address

[bwh: Adjust for 2.6.32; should also apply to 2.6.27]

Signed-off-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---

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