netdev - [PATCH net v2 1/3] net: systemport: do not clear IFF

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Date:	Thu, 26 Jun 2014 10:06:44 -0700
From:	Florian Fainelli <f.fainelli@...il.com>
To:	netdev@...r.kernel.org
Cc:	davem@...emloft.net, Florian Fainelli <f.fainelli@...il.com>
Subject: [PATCH net v2 1/3] net: systemport: do not clear IFF_MULTICAST flag

The SYSTEMPORT Ethernet MAC supports multicast just fine, it just lacks
any sort of Unicast/Broadcast/Multicasting filtering at the Ethernet MAC
level since that is handled by the front end Ethernet switch, but that
is properly handled by bcm_sysport_set_rx_mode().

Some user-space applications might be relying on the presence of this
flag to prevent using multicast sockets, this also prevents that
interface from joining the IPv6 all-router mcast group.

Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
---
Changes in v2:
- rebased

 drivers/net/ethernet/broadcom/bcmsysport.c | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c
index 141160ef249a..f6bccd847ee6 100644
--- a/drivers/net/ethernet/broadcom/bcmsysport.c
+++ b/drivers/net/ethernet/broadcom/bcmsysport.c
@@ -1589,12 +1589,6 @@ static int bcm_sysport_probe(struct platform_device *pdev)
 	BUILD_BUG_ON(sizeof(struct bcm_tsb) != 8);
 	dev->needed_headroom += sizeof(struct bcm_tsb);
 
-	/* We are interfaced to a switch which handles the multicast
-	 * filtering for us, so we do not support programming any
-	 * multicast hash table in this Ethernet MAC.
-	 */
-	dev->flags &= ~IFF_MULTICAST;
-
 	/* libphy will adjust the link state accordingly */
 	netif_carrier_off(dev);
 
-- 
1.9.1

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