enic: minimize pkt filter updates to firmware

In set_multicast(), only push pkt filter changes down to firmware if
pkt filter actually changes.

Signed-off-by: Vasanthy Kolluri <vkolluri@cisco.com>
Signed-off-by: Scott Feldman <scofeldm@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/net/enic/enic.h b/drivers/net/enic/enic.h
index 8dd0105a8d9c..b090d65ad0c8 100644
--- a/drivers/net/enic/enic.h
+++ b/drivers/net/enic/enic.h
@@ -89,6 +89,7 @@ struct enic {
         spinlock_t devcmd_lock;
         u8 mac_addr[ETH_ALEN];
         u8 mc_addr[ENIC_MULTICAST_PERFECT_FILTERS][ETH_ALEN];
+        unsigned int flags;
         unsigned int mc_count;
         int csum_rx_enabled;
         u32 port_mtu;