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net: arc_emac: don't pass multicast packets to kernel in non-multicast mode 

The patch disable capturing multicast packets when multicast mode
disabled for ethernet ('ifconfig eth0 -multicast'). In that case
no multicast packet will be passed to kernel.

Signed-off-by: Alexander Kochetkov <al.kochet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Alexander Kochetkov 2016-11-14 16:32:53 +03:00 committed by David S. Miller
parent c7a4e3d8c0
commit d0e3f65b34
1 changed files with 4 additions and 1 deletions
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5
drivers/net/ethernet/arc/emac_main.c
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@ -460,7 +460,7 @@ static void arc_emac_set_rx_mode(struct net_device *ndev)
if (ndev->flags & IFF_ALLMULTI) {
arc_reg_set(priv, R_LAFL, ~0);
arc_reg_set(priv, R_LAFH, ~0);
} else {
} else if (ndev->flags & IFF_MULTICAST) {
struct netdev_hw_addr *ha;
unsigned int filter[2] = { 0, 0 };
int bit;
@ -472,6 +472,9 @@ static void arc_emac_set_rx_mode(struct net_device *ndev)
arc_reg_set(priv, R_LAFL, filter[0]);
arc_reg_set(priv, R_LAFH, filter[1]);
} else {
arc_reg_set(priv, R_LAFL, 0);
arc_reg_set(priv, R_LAFH, 0);
}
}
}