[PATCH net-next] net: ethernet: mlx4: Avoid assigning a value to ring_cons but not used it anymore in mlx4_en_xmit()

e398 ("net/mlx4_en: Wake TX queues only when there's enough room") Signed-off-by: Luo Jiaxing --- drivers/net/ethernet/mellanox/mlx4/en_tx.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_tx.c b/drivers/net/ethernet/mellanox/mlx4/en_tx

[PATCH net-next] net: stmmac: set get_rx_header_len() as void for it didn't have any error code to return

() and dwxgmac2_get_rx_header_len() return 0 only, without any error code to report. Therefore, it's better to define get_rx_header_len() as void. Signed-off-by: Luo Jiaxing --- drivers/net/ethernet/stmicro/stmmac/dwmac4_descs.c | 3 +-- drivers/net/ethernet/stmicro/stmmac/dwxgmac2_

[PATCH net-next] net: smc91x: Remove set but not used variable 'status' in smc_phy_configure()

Fixes the following warning when using W=1 to build kernel: drivers/net/ethernet/smsc/smc91x.c: In function ‘smc_phy_configure’: drivers/net/ethernet/smsc/smc91x.c:1039:6: warning: variable ‘status’ set but not used [-Wunused-but-set-variable] int status; Signed-off-by: Luo Jiaxing

[PATCH net-next] net: stmmac: Remove unused variable 'ret' at stmmac_rx_buf1_len()

() and dwxgmac2_get_rx_header_len() return 0 by default. Therefore, ret do not need to check the error value and can be directly deleted. Signed-off-by: Luo Jiaxing --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drive