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ethtool: fix incorrect tx-checksumming settings reporting 

Currently, ethtool feature mask for checksum command is ORed with
NETIF_F_FCOE_CRC_BIT, which is bit's position number, instead of the
actual feature bit - NETIF_F_FCOE_CRC.

The invalid bitmask here might affect unrelated features when toggling
TX checksumming. For example, TX checksumming is always mistakenly
reported as enabled on the netdevs tested (mlx5, virtio_net).

Fixes: f70bb06563 ("ethtool: update mapping of features to legacy ioctl requests")
Signed-off-by: Vladyslav Tarasiuk <vladyslavt@mellanox.com>
Reviewed-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: hongrongxuan <hongrongxuan@huawei.com>
This commit is contained in:
Vladyslav Tarasiuk 2020-03-24 13:57:08 +02:00 committed by Jianping Liu
parent 6987b01929
commit 82d979b95e
1 changed files with 1 additions and 1 deletions
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2
net/ethtool/ioctl.c
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@ -196,7 +196,7 @@ static netdev_features_t ethtool_get_feature_mask(u32 eth_cmd)
switch (eth_cmd) {
case ETHTOOL_GTXCSUM:
case ETHTOOL_STXCSUM:
return NETIF_F_CSUM_MASK | NETIF_F_FCOE_CRC_BIT |
return NETIF_F_CSUM_MASK | NETIF_F_FCOE_CRC |
NETIF_F_SCTP_CRC;
case ETHTOOL_GRXCSUM:
case ETHTOOL_SRXCSUM: