diff options
| author | Zheng Zengkai <zhengzengkai@huawei.com> | 2020-03-16 14:05:24 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-03-16 23:00:56 +0100 |
| commit | 10ee4b87f5f94c8e6dce4be95f5e56c445d45dbf (patch) | |
| tree | d6c53413de26c9333c2528c7b67c403753554f35 /drivers/net/ethernet/qlogic/qede/qede_ethtool.c | |
| parent | net: sched: set the hw_stats_type in pedit loop (diff) | |
| download | linux-10ee4b87f5f94c8e6dce4be95f5e56c445d45dbf.tar.xz linux-10ee4b87f5f94c8e6dce4be95f5e56c445d45dbf.zip | |
qede: remove some unused code in function qede_selftest_receive_traffic
Remove set but not used variables 'sw_comp_cons' and 'hw_comp_cons'
to fix gcc '-Wunused-but-set-variable' warning:
drivers/net/ethernet/qlogic/qede/qede_ethtool.c: In function qede_selftest_receive_traffic:
drivers/net/ethernet/qlogic/qede/qede_ethtool.c:1569:20:
warning: variable sw_comp_cons set but not used [-Wunused-but-set-variable]
drivers/net/ethernet/qlogic/qede/qede_ethtool.c: In function qede_selftest_receive_traffic:
drivers/net/ethernet/qlogic/qede/qede_ethtool.c:1569:6:
warning: variable hw_comp_cons set but not used [-Wunused-but-set-variable]
After removing 'hw_comp_cons',the memory barrier 'rmb()' and its comments become useless,
so remove them as well.
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/qlogic/qede/qede_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/qlogic/qede/qede_ethtool.c | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c index 4f7676f4e624..812c7766e096 100644 --- a/drivers/net/ethernet/qlogic/qede/qede_ethtool.c +++ b/drivers/net/ethernet/qlogic/qede/qede_ethtool.c @@ -1566,7 +1566,7 @@ static int qede_selftest_transmit_traffic(struct qede_dev *edev, static int qede_selftest_receive_traffic(struct qede_dev *edev) { - u16 hw_comp_cons, sw_comp_cons, sw_rx_index, len; + u16 sw_rx_index, len; struct eth_fast_path_rx_reg_cqe *fp_cqe; struct qede_rx_queue *rxq = NULL; struct sw_rx_data *sw_rx_data; @@ -1596,17 +1596,6 @@ static int qede_selftest_receive_traffic(struct qede_dev *edev) continue; } - hw_comp_cons = le16_to_cpu(*rxq->hw_cons_ptr); - sw_comp_cons = qed_chain_get_cons_idx(&rxq->rx_comp_ring); - - /* Memory barrier to prevent the CPU from doing speculative - * reads of CQE/BD before reading hw_comp_cons. If the CQE is - * read before it is written by FW, then FW writes CQE and SB, - * and then the CPU reads the hw_comp_cons, it will use an old - * CQE. - */ - rmb(); - /* Get the CQE from the completion ring */ cqe = (union eth_rx_cqe *)qed_chain_consume(&rxq->rx_comp_ring); |