[PATCH 1/2] ixgbe: Avoid to write the RETA table when unnecessary.

[Tonghao Zhang]

If indir == 0 in the ixgbe_set_rxfh(), it is unnecessary
to write the HW. Because redirection table is not changed.

Signed-off-by: Tonghao Zhang <xiangxia.m....@gmail.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c 
b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index 0aaf70b..0f1d642 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -3060,6 +3060,8 @@ static int ixgbe_set_rxfh(struct net_device *netdev, 
const u32 *indir,
 
                for (i = 0; i < reta_entries; i++)
                        adapter->rss_indir_tbl[i] = indir[i];
+
+               ixgbe_store_reta(adapter);
        }
 
        /* Fill out the rss hash key */
@@ -3068,7 +3070,6 @@ static int ixgbe_set_rxfh(struct net_device *netdev, 
const u32 *indir,
                ixgbe_store_key(adapter);
        }
 
-       ixgbe_store_reta(adapter);
 
        return 0;
 }
-- 
1.8.3.1