Messages in this thread Patch in this message | | | From | Mariusz Ceier <> | Subject | [PATCH] davinci_emac.c: Fix IFF_ALLMULTI setup | Date | Mon, 21 Oct 2013 18:59:37 +0200 |
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When IFF_ALLMULTI flag is set on interface and IFF_PROMISC isn't, emac_dev_mcast_set should only enable RX of multicasts and reset MACHASH registers.
It does this, but afterwards it either sets up multicast MACs filtering or disables RX of multicasts and resets MACHASH registers again, rendering IFF_ALLMULTI flag useless.
This patch fixes emac_dev_mcast_set, so that multicast MACs filtering and disabling of RX of multicasts are skipped when IFF_ALLMULTI flag is set.
Tested with kernel 2.6.37.
Signed-off-by: Mariusz Ceier <mceier+kernel@gmail.com> --- drivers/net/ethernet/ti/davinci_emac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/ti/davinci_emac.c b/drivers/net/ethernet/ti/davinci_emac.c index 67df09e..ff3bf0e 100644 --- a/drivers/net/ethernet/ti/davinci_emac.c +++ b/drivers/net/ethernet/ti/davinci_emac.c @@ -876,7 +876,7 @@ static void emac_dev_mcast_set(struct net_device *ndev) netdev_mc_count(ndev) > EMAC_DEF_MAX_MULTICAST_ADDRESSES) { mbp_enable = (mbp_enable | EMAC_MBP_RXMCAST); emac_add_mcast(priv, EMAC_ALL_MULTI_SET, NULL); - } + } else if (!netdev_mc_empty(ndev)) { struct netdev_hw_addr *ha; -- 1.8.4
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