From c7258d8637be2ac1e4cbf276ac5145da456303d0 Mon Sep 17 00:00:00 2001 From: Thomas Richter Date: Mon, 18 May 2015 14:27:52 +0200 Subject: [PATCH] qeth: fix rx checksum offload handling ethtool is used to change some device driver features such as RX/TX hardware checksum offloading. The qeth device driver callback function to turn on/off RX hardware check sum handling never changes the hardware configuration. The NETIF_F_RXCSUM bit is cleared when the feature bitset type netdev_features_t(64bit) is assigned to 32 a bit variable. This patch fixes the NETIF_F_RXCSUM handling. Also there is no need to manipulate the device's features bit set as this is done by the caller when no error occurs. Signed-off-by: Thomas Richter Signed-off-by: Ursula Braun Signed-off-by: David S. Miller --- drivers/s390/net/qeth_l3_main.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c index 04e42c6..70eb2f61 100644 --- a/drivers/s390/net/qeth_l3_main.c +++ b/drivers/s390/net/qeth_l3_main.c @@ -3198,8 +3198,7 @@ static int qeth_l3_set_features(struct net_device *dev, netdev_features_t features) { struct qeth_card *card = dev->ml_priv; - u32 changed = dev->features ^ features; - int err; + netdev_features_t changed = dev->features ^ features; if (!(changed & NETIF_F_RXCSUM)) return 0; @@ -3208,11 +3207,7 @@ static int qeth_l3_set_features(struct net_device *dev, card->state == CARD_STATE_RECOVER) return 0; - err = qeth_l3_set_rx_csum(card, features & NETIF_F_RXCSUM); - if (err) - dev->features = features ^ NETIF_F_RXCSUM; - - return err; + return qeth_l3_set_rx_csum(card, features & NETIF_F_RXCSUM ? 1 : 0); } static const struct ethtool_ops qeth_l3_ethtool_ops = { -- 2.7.4