2018-08-07 23:12:06

by Gustavo A. R. Silva

Subject: [PATCH 00/33] net: ethernet: Mark expected switch fall-throughs

Hi all,

In preparation to enabling -Wimplicit-fallthrough, this patchset aims
to add some annotations in order to mark switch cases where we are
expecting to fall through.

Thanks

Gustavo A. R. Silva (33):
8390: axnet_cs: Mark expected switch fall-through
alteon: acenic: mark expected switch fall-through
bnx2x: Mark expected switch fall-thoughs
net: macb: Mark expected switch fall-through
liquidio: mark expected switch fall-through
cxgb4/l2t: Mark expected switch fall-through
cxgb4/t4_hw: mark expected switch fall-throughs
cxgb3/l2t: Mark expected switch fall-through
net: thunderx: mark expected switch fall-through
net: tulip_core: mark expected switch fall-through
net: tulip: de4x5: mark expected switch fall-throughs
be2net: Mark expected switch fall-through
net: hns: Mark expected switch fall-through
net: hns3: Mark expected switch fall-through
i40e_main: mark expected switch fall-through
i40e_txrx: mark expected switch fall-through
net/mlx4/mcg: Mark expected switch fall-throughs
net/mlx4/en_rx: Mark expected switch fall-throughs
igb_main: Mark expected switch fall-throughs
igb: e1000_82575: Mark expected switch fall-through
igb: e1000_phy: Mark expected switch fall-through
igbvf: netdev: Mark expected switch fall-through
vxge: Mark expected switch fall-throughs
net/mlx5e: Mark expected switch fall-throughs
qed: qed_dev: Mark expected switch fall-throughs
netxen_nic: Mark expected switch fall-throughs
qede: qede_fp: Mark expected switch fall-through
qlcnic: Mark expected switch fall-througs
qlge: mark expected switch fall-through
net: ethernet: sxgbe: mark expected switch fall-throughs
net: sfc: falcon: mark expected switch fall-through
net: tlan: Mark expected switch fall-through
net: ethernet: ti: cpts: mark expected switch fall-through

drivers/net/ethernet/8390/axnet_cs.c | 1 +
drivers/net/ethernet/alteon/acenic.c | 1 +
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +-
drivers/net/ethernet/cadence/macb_ptp.c | 1 +
drivers/net/ethernet/cavium/liquidio/lio_main.c | 1 +
drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c | 1 +
drivers/net/ethernet/chelsio/cxgb3/l2t.c | 1 +
drivers/net/ethernet/chelsio/cxgb4/l2t.c | 1 +
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 3 +++
drivers/net/ethernet/dec/tulip/de4x5.c | 6 ++++++
drivers/net/ethernet/dec/tulip/tulip_core.c | 1 +
drivers/net/ethernet/emulex/benet/be_ethtool.c | 1 +
drivers/net/ethernet/hisilicon/hns/hns_ethtool.c | 1 +
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 1 +
drivers/net/ethernet/intel/i40e/i40e_main.c | 1 +
drivers/net/ethernet/intel/i40e/i40e_txrx.c | 3 ++-
drivers/net/ethernet/intel/igb/e1000_82575.c | 1 +
drivers/net/ethernet/intel/igb/e1000_phy.c | 1 +
drivers/net/ethernet/intel/igb/igb_main.c | 2 ++
drivers/net/ethernet/intel/igbvf/netdev.c | 1 +
drivers/net/ethernet/mellanox/mlx4/en_rx.c | 2 ++
drivers/net/ethernet/mellanox/mlx4/mcg.c | 2 ++
drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c | 2 ++
drivers/net/ethernet/neterion/vxge/vxge-config.c | 3 +++
drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c | 3 ++-
drivers/net/ethernet/qlogic/qed/qed_dev.c | 4 ++--
drivers/net/ethernet/qlogic/qede/qede_fp.c | 2 ++
drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c | 3 ++-
drivers/net/ethernet/qlogic/qlge/qlge_mpi.c | 1 +
drivers/net/ethernet/samsung/sxgbe/sxgbe_ethtool.c | 2 ++
drivers/net/ethernet/sfc/falcon/ethtool.c | 1 +
drivers/net/ethernet/ti/cpts.c | 1 +
drivers/net/ethernet/ti/tlan.c | 1 +
33 files changed, 52 insertions(+), 6 deletions(-)

--
2.7.4

2018-08-07 23:10:25

by Gustavo A. R. Silva

Subject: [PATCH 01/33] 8390: axnet_cs: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114889 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/8390/axnet_cs.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/8390/axnet_cs.c b/drivers/net/ethernet/8390/axnet_cs.c
index d422a12..0b6bbf6 100644
--- a/drivers/net/ethernet/8390/axnet_cs.c
+++ b/drivers/net/ethernet/8390/axnet_cs.c
@@ -610,6 +610,7 @@ static int axnet_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
switch (cmd) {
case SIOCGMIIPHY:
data->phy_id = info->phy_id;
+ /* Fall through */
case SIOCGMIIREG: /* Read MII PHY register. */
data->val_out = mdio_read(mii_addr, data->phy_id, data->reg_num & 0x1f);
return 0;
--
2.7.4

2018-08-07 23:14:48

by Gustavo A. R. Silva

Subject: [PATCH 05/33] liquidio: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 143135 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/cavium/liquidio/lio_main.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/cavium/liquidio/lio_main.c b/drivers/net/ethernet/cavium/liquidio/lio_main.c
index 8ef87a7..6fb13fa 100644
--- a/drivers/net/ethernet/cavium/liquidio/lio_main.c
+++ b/drivers/net/ethernet/cavium/liquidio/lio_main.c
@@ -2209,6 +2209,7 @@ static int liquidio_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
case SIOCSHWTSTAMP:
if (lio->oct_dev->ptp_enable)
return hwtstamp_ioctl(netdev, ifr);
+ /* fall through */
default:
return -EOPNOTSUPP;
}
--
2.7.4

2018-08-07 23:15:01

by Gustavo A. R. Silva

Subject: [PATCH 07/33] cxgb4/t4_hw: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114777 ("Missing break in switch")
Addresses-Coverity-ID: 114778 ("Missing break in switch")
Addresses-Coverity-ID: 114779 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 2d9943f..5fe5d16 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -7504,10 +7504,13 @@ int t4_alloc_vi(struct adapter *adap, unsigned int mbox, unsigned int port,
switch (nmac) {
case 5:
memcpy(mac + 24, c.nmac3, sizeof(c.nmac3));
+ /* Fall through */
case 4:
memcpy(mac + 18, c.nmac2, sizeof(c.nmac2));
+ /* Fall through */
case 3:
memcpy(mac + 12, c.nmac1, sizeof(c.nmac1));
+ /* Fall through */
case 2:
memcpy(mac + 6, c.nmac0, sizeof(c.nmac0));
}
--
2.7.4

2018-08-07 23:16:14

by Gustavo A. R. Silva

Subject: [PATCH 08/33] cxgb3/l2t: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114780 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/chelsio/cxgb3/l2t.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/chelsio/cxgb3/l2t.c b/drivers/net/ethernet/chelsio/cxgb3/l2t.c
index 248e40c..0e9182d 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/l2t.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/l2t.c
@@ -136,6 +136,7 @@ int t3_l2t_send_slow(struct t3cdev *dev, struct sk_buff *skb,
if (e->state == L2T_STATE_STALE)
e->state = L2T_STATE_VALID;
spin_unlock_bh(&e->lock);
+ /* fall through */
case L2T_STATE_VALID: /* fast-path, send the packet on */
return cxgb3_ofld_send(dev, skb);
case L2T_STATE_RESOLVING:
--
2.7.4

2018-08-07 23:16:14

by Gustavo A. R. Silva

Subject: [PATCH 06/33] cxgb4/l2t: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114910 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/chelsio/cxgb4/l2t.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/l2t.c b/drivers/net/ethernet/chelsio/cxgb4/l2t.c
index 77c2c53..301c4df 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/l2t.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/l2t.c
@@ -231,6 +231,7 @@ int cxgb4_l2t_send(struct net_device *dev, struct sk_buff *skb,
if (e->state == L2T_STATE_STALE)
e->state = L2T_STATE_VALID;
spin_unlock_bh(&e->lock);
+ /* fall through */
case L2T_STATE_VALID: /* fast-path, send the packet on */
return t4_ofld_send(adap, skb);
case L2T_STATE_RESOLVING:
--
2.7.4

2018-08-07 23:16:49

by Gustavo A. R. Silva

Subject: [PATCH 10/33] net: tulip_core: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114782 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/dec/tulip/tulip_core.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/dec/tulip/tulip_core.c b/drivers/net/ethernet/dec/tulip/tulip_core.c
index 00d02a0..3e3e086 100644
--- a/drivers/net/ethernet/dec/tulip/tulip_core.c
+++ b/drivers/net/ethernet/dec/tulip/tulip_core.c
@@ -923,6 +923,7 @@ static int private_ioctl (struct net_device *dev, struct ifreq *rq, int cmd)
data->phy_id = 1;
else
return -ENODEV;
+ /* Fall through */

case SIOCGMIIREG: /* Read MII PHY register. */
if (data->phy_id == 32 && (tp->flags & HAS_NWAY)) {
--
2.7.4

2018-08-07 23:17:16

by Gustavo A. R. Silva

Subject: [PATCH 09/33] net: thunderx: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114781 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c b/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
index 5603f5a..92ba958 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_ethtool.c
@@ -527,6 +527,7 @@ static int nicvf_get_rss_hash_opts(struct nicvf *nic,
case SCTP_V4_FLOW:
case SCTP_V6_FLOW:
info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ /* Fall through */
case IPV4_FLOW:
case IPV6_FLOW:
info->data |= RXH_IP_SRC | RXH_IP_DST;
--
2.7.4

2018-08-07 23:17:58

by Gustavo A. R. Silva

Subject: [PATCH 11/33] net: tulip: de4x5: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114784 ("Missing break in switch")
Addresses-Coverity-ID: 114785 ("Missing break in switch")
Addresses-Coverity-ID: 114786 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/dec/tulip/de4x5.c | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/dec/tulip/de4x5.c b/drivers/net/ethernet/dec/tulip/de4x5.c
index a31b4df..66535d1 100644
--- a/drivers/net/ethernet/dec/tulip/de4x5.c
+++ b/drivers/net/ethernet/dec/tulip/de4x5.c
@@ -3204,6 +3204,8 @@ srom_map_media(struct net_device *dev)
case SROM_10BASETF:
if (!lp->params.fdx) return -1;
lp->fdx = true;
+ /* fall through */
+
case SROM_10BASET:
if (lp->params.fdx && !lp->fdx) return -1;
if ((lp->chipset == DC21140) || ((lp->chipset & ~0x00ff) == DC2114x)) {
@@ -3224,6 +3226,8 @@ srom_map_media(struct net_device *dev)
case SROM_100BASETF:
if (!lp->params.fdx) return -1;
lp->fdx = true;
+ /* fall through */
+
case SROM_100BASET:
if (lp->params.fdx && !lp->fdx) return -1;
lp->media = _100Mb;
@@ -3236,6 +3240,8 @@ srom_map_media(struct net_device *dev)
case SROM_100BASEFF:
if (!lp->params.fdx) return -1;
lp->fdx = true;
+ /* fall through */
+
case SROM_100BASEF:
if (lp->params.fdx && !lp->fdx) return -1;
lp->media = _100Mb;
--
2.7.4

2018-08-07 23:19:00

by Gustavo A. R. Silva

Subject: [PATCH 12/33] be2net: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114787 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/emulex/benet/be_ethtool.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/emulex/benet/be_ethtool.c b/drivers/net/ethernet/emulex/benet/be_ethtool.c
index 7f7e206..3f6749f 100644
--- a/drivers/net/ethernet/emulex/benet/be_ethtool.c
+++ b/drivers/net/ethernet/emulex/benet/be_ethtool.c
@@ -575,6 +575,7 @@ static u32 convert_to_et_setting(struct be_adapter *adapter, u32 if_speeds)
break;
}
}
+ /* fall through */
case PHY_TYPE_SFP_PLUS_10GB:
case PHY_TYPE_XFP_10GB:
case PHY_TYPE_SFP_1GB:
--
2.7.4

2018-08-07 23:19:03

by Gustavo A. R. Silva

Subject: [PATCH 13/33] net: hns: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114788 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/hisilicon/hns/hns_ethtool.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
index 3957205..08f3c47 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
@@ -307,6 +307,7 @@ static int __lb_setup(struct net_device *ndev,
break;
case MAC_LOOP_PHY_NONE:
ret = hns_nic_config_phy_loopback(phy_dev, 0x0);
+ /* fall through */
case MAC_LOOP_NONE:
if (!ret && h->dev->ops->set_loopback) {
if (priv->ae_handle->phy_if != PHY_INTERFACE_MODE_XGMII)
--
2.7.4

2018-08-07 23:20:12

by Gustavo A. R. Silva

Subject: [PATCH 14/33] net: hns3: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114789 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index bd031af..a64d69c 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -2104,6 +2104,7 @@ static void hns3_rx_checksum(struct hns3_enet_ring *ring, struct sk_buff *skb,
case HNS3_OL4_TYPE_MAC_IN_UDP:
case HNS3_OL4_TYPE_NVGRE:
skb->csum_level = 1;
+ /* fall through */
case HNS3_OL4_TYPE_NO_TUN:
/* Can checksum ipv4 or ipv6 + UDP/TCP/SCTP packets */
if ((l3_type == HNS3_L3_TYPE_IPV4 ||
--
2.7.4

2018-08-07 23:21:05

by Gustavo A. R. Silva

Subject: [PATCH 15/33] i40e_main: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114790 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/intel/i40e/i40e_main.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 5176242..a1a274d 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -1800,6 +1800,7 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
num_tc_qps);
break;
}
+ /* fall through */
case I40E_VSI_FDIR:
case I40E_VSI_SRIOV:
case I40E_VSI_VMDQ2:
--
2.7.4

2018-08-07 23:22:08

by Gustavo A. R. Silva

Subject: [PATCH 16/33] i40e_txrx: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114791 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/intel/i40e/i40e_txrx.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index b151ae3..b5042d1 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -2253,9 +2253,10 @@ static struct sk_buff *i40e_run_xdp(struct i40e_ring *rx_ring,
break;
default:
bpf_warn_invalid_xdp_action(act);
+ /* fall through */
case XDP_ABORTED:
trace_xdp_exception(rx_ring->netdev, xdp_prog, act);
- /* fallthrough -- handle aborts by dropping packet */
+ /* fall through -- handle aborts by dropping packet */
case XDP_DROP:
result = I40E_XDP_CONSUMED;
break;
--
2.7.4

2018-08-07 23:22:18

by Gustavo A. R. Silva

Subject: [PATCH 17/33] net/mlx4/mcg: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114792 ("Missing break in switch")
Addresses-Coverity-ID: 114793 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/mellanox/mlx4/mcg.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx4/mcg.c b/drivers/net/ethernet/mellanox/mlx4/mcg.c
index 4c5306d..ffed2d4 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mcg.c
+++ b/drivers/net/ethernet/mellanox/mlx4/mcg.c
@@ -1412,6 +1412,7 @@ int mlx4_multicast_attach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
case MLX4_STEERING_MODE_A0:
if (prot == MLX4_PROT_ETH)
return 0;
+ /* fall through */

case MLX4_STEERING_MODE_B0:
if (prot == MLX4_PROT_ETH)
@@ -1441,6 +1442,7 @@ int mlx4_multicast_detach(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
case MLX4_STEERING_MODE_A0:
if (prot == MLX4_PROT_ETH)
return 0;
+ /* fall through */

case MLX4_STEERING_MODE_B0:
if (prot == MLX4_PROT_ETH)
--
2.7.4

2018-08-07 23:23:04

by Gustavo A. R. Silva

Subject: [PATCH 18/33] net/mlx4/en_rx: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114794 ("Missing break in switch")
Addresses-Coverity-ID: 114795 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/mellanox/mlx4/en_rx.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx4/en_rx.c b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
index 3360f7b..a1aeeb8 100644
--- a/drivers/net/ethernet/mellanox/mlx4/en_rx.c
+++ b/drivers/net/ethernet/mellanox/mlx4/en_rx.c
@@ -795,8 +795,10 @@ int mlx4_en_process_rx_cq(struct net_device *dev, struct mlx4_en_cq *cq, int bud
goto xdp_drop_no_cnt; /* Drop on xmit failure */
default:
bpf_warn_invalid_xdp_action(act);
+ /* fall through */
case XDP_ABORTED:
trace_xdp_exception(dev, xdp_prog, act);
+ /* fall through */
case XDP_DROP:
ring->xdp_drop++;
xdp_drop_no_cnt:
--
2.7.4

2018-08-07 23:23:32

by Gustavo A. R. Silva

Subject: [PATCH 19/33] igb_main: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 200521 ("Missing break in switch")
Addresses-Coverity-ID: 114797 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/intel/igb/igb_main.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 636d805..d03c2f0 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -5175,6 +5175,7 @@ bool igb_has_link(struct igb_adapter *adapter)
case e1000_media_type_copper:
if (!hw->mac.get_link_status)
return true;
+ /* fall through */
case e1000_media_type_internal_serdes:
hw->mac.ops.check_for_link(hw);
link_active = !hw->mac.get_link_status;
@@ -5835,6 +5836,7 @@ static void igb_tx_csum(struct igb_ring *tx_ring, struct igb_tx_buffer *first)
type_tucmd = E1000_ADVTXD_TUCMD_L4T_SCTP;
break;
}
+ /* fall through */
default:
skb_checksum_help(skb);
goto csum_failed;
--
2.7.4

2018-08-07 23:24:03

by Gustavo A. R. Silva

Subject: [PATCH 20/33] igb: e1000_82575: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114799 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/intel/igb/e1000_82575.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c
index a795c07..bafdcf7 100644
--- a/drivers/net/ethernet/intel/igb/e1000_82575.c
+++ b/drivers/net/ethernet/intel/igb/e1000_82575.c
@@ -1708,6 +1708,7 @@ static s32 igb_setup_serdes_link_82575(struct e1000_hw *hw)
case E1000_CTRL_EXT_LINK_MODE_1000BASE_KX:
/* disable PCS autoneg and support parallel detect only */
pcs_autoneg = false;
+ /* fall through */
default:
if (hw->mac.type == e1000_82575 ||
hw->mac.type == e1000_82576) {
--
2.7.4

2018-08-07 23:25:13

by Gustavo A. R. Silva

Subject: [PATCH 21/33] igb: e1000_phy: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114800 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/intel/igb/e1000_phy.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/intel/igb/e1000_phy.c b/drivers/net/ethernet/intel/igb/e1000_phy.c
index 2be0e76..ad2125e 100644
--- a/drivers/net/ethernet/intel/igb/e1000_phy.c
+++ b/drivers/net/ethernet/intel/igb/e1000_phy.c
@@ -659,6 +659,7 @@ s32 igb_copper_link_setup_m88_gen2(struct e1000_hw *hw)
phy_data |= M88E1000_PSCR_AUTO_X_1000T;
break;
}
+ /* fall through */
case 0:
default:
phy_data |= M88E1000_PSCR_AUTO_X_MODE;
--
2.7.4

2018-08-07 23:25:17

by Gustavo A. R. Silva

Subject: [PATCH 22/33] igbvf: netdev: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114801 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/intel/igbvf/netdev.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c
index f818f06..e0c989f 100644
--- a/drivers/net/ethernet/intel/igbvf/netdev.c
+++ b/drivers/net/ethernet/intel/igbvf/netdev.c
@@ -2102,6 +2102,7 @@ static bool igbvf_tx_csum(struct igbvf_ring *tx_ring, struct sk_buff *skb,
type_tucmd = E1000_ADVTXD_TUCMD_L4T_SCTP;
break;
}
+ /* fall through */
default:
skb_checksum_help(skb);
goto csum_failed;
--
2.7.4

2018-08-07 23:25:49

by Gustavo A. R. Silva

Subject: [PATCH 23/33] vxge: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114796 ("Missing break in switch")
Addresses-Coverity-ID: 114804 ("Missing break in switch")
Addresses-Coverity-ID: 114806 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/neterion/vxge/vxge-config.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/net/ethernet/neterion/vxge/vxge-config.c b/drivers/net/ethernet/neterion/vxge/vxge-config.c
index a2c0a93..ae81498 100644
--- a/drivers/net/ethernet/neterion/vxge/vxge-config.c
+++ b/drivers/net/ethernet/neterion/vxge/vxge-config.c
@@ -3783,17 +3783,20 @@ vxge_hw_rts_rth_data0_data1_get(u32 j, u64 *data0, u64 *data1,
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_ENTRY_EN |
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM0_BUCKET_DATA(
itable[j]);
+ /* fall through */
case 2:
*data0 |=
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_BUCKET_NUM(j)|
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_ENTRY_EN |
VXGE_HW_RTS_ACCESS_STEER_DATA0_RTH_ITEM1_BUCKET_DATA(
itable[j]);
+ /* fall through */
case 3:
*data1 = VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_BUCKET_NUM(j)|
VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_ENTRY_EN |
VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM0_BUCKET_DATA(
itable[j]);
+ /* fall through */
case 4:
*data1 |=
VXGE_HW_RTS_ACCESS_STEER_DATA1_RTH_ITEM1_BUCKET_NUM(j)|
--
2.7.4

2018-08-07 23:26:37

by Gustavo A. R. Silva

Subject: [PATCH 24/33] net/mlx5e: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114808 ("Missing break in switch")
Addresses-Coverity-ID: 114802 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
index 1881468..ad6d471 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
@@ -91,9 +91,11 @@ bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct mlx5e_dma_info *di,
return true;
default:
bpf_warn_invalid_xdp_action(act);
+ /* fall through */
case XDP_ABORTED:
xdp_abort:
trace_xdp_exception(rq->netdev, prog, act);
+ /* fall through */
case XDP_DROP:
rq->stats->xdp_drop++;
return true;
--
2.7.4

2018-08-07 23:27:02

by Gustavo A. R. Silva

Subject: [PATCH 25/33] qed: qed_dev: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Notice that in this particular case, I replaced the code comments with
a proper "fall through" annotation, which is what GCC is expecting
to find.

Addresses-Coverity-ID: 114809 ("Missing break in switch")
Addresses-Coverity-ID: 114810 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/qlogic/qed/qed_dev.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/qlogic/qed/qed_dev.c b/drivers/net/ethernet/qlogic/qed/qed_dev.c
index 6a0b46f..2f42df3 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_dev.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_dev.c
@@ -1709,14 +1709,14 @@ int qed_hw_init(struct qed_dev *cdev, struct qed_hw_init_params *p_params)
p_hwfn->hw_info.hw_mode);
if (rc)
break;
- /* Fall into */
+ /* Fall through */
case FW_MSG_CODE_DRV_LOAD_PORT:
rc = qed_hw_init_port(p_hwfn, p_hwfn->p_main_ptt,
p_hwfn->hw_info.hw_mode);
if (rc)
break;

- /* Fall into */
+ /* Fall through */
case FW_MSG_CODE_DRV_LOAD_FUNCTION:
rc = qed_hw_init_pf(p_hwfn, p_hwfn->p_main_ptt,
p_params->p_tunn,
--
2.7.4

2018-08-07 23:28:07

by Gustavo A. R. Silva

Subject: [PATCH 26/33] netxen_nic: Mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1410182 ("Missing break in switch")
Addresses-Coverity-ID: 1410183 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c
index 3157f97..3c1be87 100644
--- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_ethtool.c
@@ -167,9 +167,9 @@ netxen_nic_get_link_ksettings(struct net_device *dev,
case NETXEN_BRDTYPE_P3_REF_QG:
case NETXEN_BRDTYPE_P3_4_GB:
case NETXEN_BRDTYPE_P3_4_GB_MM:
-
supported |= SUPPORTED_Autoneg;
advertising |= ADVERTISED_Autoneg;
+ /* fall through */
case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
case NETXEN_BRDTYPE_P3_10G_CX4:
case NETXEN_BRDTYPE_P3_10G_CX4_LP:
@@ -198,6 +198,7 @@ netxen_nic_get_link_ksettings(struct net_device *dev,
supported |= SUPPORTED_TP;
check_sfp_module = netif_running(dev) &&
adapter->has_link_events;
+ /* fall through */
case NETXEN_BRDTYPE_P2_SB31_10G:
case NETXEN_BRDTYPE_P3_10G_XFP:
supported |= SUPPORTED_FIBRE;
--
2.7.4

2018-08-07 23:28:44

by Gustavo A. R. Silva

Subject: [PATCH 27/33] qede: qede_fp: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1384501 ("Missing break in switch")
Addresses-Coverity-ID: 1398869 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/qlogic/qede/qede_fp.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/qlogic/qede/qede_fp.c b/drivers/net/ethernet/qlogic/qede/qede_fp.c
index 6c70239..8c9e95b 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_fp.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_fp.c
@@ -1119,8 +1119,10 @@ static bool qede_rx_xdp(struct qede_dev *edev,

default:
bpf_warn_invalid_xdp_action(act);
+ /* Fall through */
case XDP_ABORTED:
trace_xdp_exception(edev->ndev, prog, act);
+ /* Fall through */
case XDP_DROP:
qede_recycle_rx_bd_ring(rxq, cqe->bd_num);
}
--
2.7.4

2018-08-07 23:29:58

by Gustavo A. R. Silva

Subject: [PATCH 28/33] qlcnic: Mark expected switch fall-througs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1410181 ("Missing break in switch")
Addresses-Coverity-ID: 1410184 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
index 7f7deea..3b0adda 100644
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_ethtool.c
@@ -351,9 +351,9 @@ static int qlcnic_82xx_get_link_ksettings(struct qlcnic_adapter *adapter,
case QLCNIC_BRDTYPE_P3P_REF_QG:
case QLCNIC_BRDTYPE_P3P_4_GB:
case QLCNIC_BRDTYPE_P3P_4_GB_MM:
-
supported |= SUPPORTED_Autoneg;
advertising |= ADVERTISED_Autoneg;
+ /* fall through */
case QLCNIC_BRDTYPE_P3P_10G_CX4:
case QLCNIC_BRDTYPE_P3P_10G_CX4_LP:
case QLCNIC_BRDTYPE_P3P_10000_BASE_T:
@@ -377,6 +377,7 @@ static int qlcnic_82xx_get_link_ksettings(struct qlcnic_adapter *adapter,
supported |= SUPPORTED_TP;
check_sfp_module = netif_running(adapter->netdev) &&
ahw->has_link_events;
+ /* fall through */
case QLCNIC_BRDTYPE_P3P_10G_XFP:
supported |= SUPPORTED_FIBRE;
advertising |= ADVERTISED_FIBRE;
--
2.7.4

2018-08-07 23:30:34

by Gustavo A. R. Silva

Subject: [PATCH 29/33] qlge: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114811 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/qlogic/qlge/qlge_mpi.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_mpi.c b/drivers/net/ethernet/qlogic/qlge/qlge_mpi.c
index 4be65d6..957c729 100644
--- a/drivers/net/ethernet/qlogic/qlge/qlge_mpi.c
+++ b/drivers/net/ethernet/qlogic/qlge/qlge_mpi.c
@@ -1176,6 +1176,7 @@ void ql_mpi_idc_work(struct work_struct *work)
case MB_CMD_PORT_RESET:
case MB_CMD_STOP_FW:
ql_link_off(qdev);
+ /* Fall through */
case MB_CMD_SET_PORT_CFG:
/* Signal the resulting link up AEN
* that the frame routing and mac addr
--
2.7.4

2018-08-07 23:31:34

by Gustavo A. R. Silva

Subject: [PATCH 02/33] alteon: acenic: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114891 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/alteon/acenic.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/alteon/acenic.c b/drivers/net/ethernet/alteon/acenic.c
index 08945ba..4f11f98 100644
--- a/drivers/net/ethernet/alteon/acenic.c
+++ b/drivers/net/ethernet/alteon/acenic.c
@@ -551,6 +551,7 @@ static int acenic_probe_one(struct pci_dev *pdev,
ap->name);
break;
}
+ /* Fall through */
case PCI_VENDOR_ID_SGI:
printk(KERN_INFO "%s: SGI AceNIC ", ap->name);
break;
--
2.7.4

2018-08-07 23:31:42

by Gustavo A. R. Silva

Subject: [PATCH 30/33] net: ethernet: sxgbe: mark expected switch fall-throughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1357414 ("Missing break in switch")
Addresses-Coverity-ID: 1357415 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/samsung/sxgbe/sxgbe_ethtool.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/samsung/sxgbe/sxgbe_ethtool.c b/drivers/net/ethernet/samsung/sxgbe/sxgbe_ethtool.c
index 542b67d..c9aad0e 100644
--- a/drivers/net/ethernet/samsung/sxgbe/sxgbe_ethtool.c
+++ b/drivers/net/ethernet/samsung/sxgbe/sxgbe_ethtool.c
@@ -319,6 +319,7 @@ static int sxgbe_get_rss_hash_opts(struct sxgbe_priv_data *priv,
case TCP_V4_FLOW:
case UDP_V4_FLOW:
cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ /* Fall through */
case SCTP_V4_FLOW:
case AH_ESP_V4_FLOW:
case AH_V4_FLOW:
@@ -329,6 +330,7 @@ static int sxgbe_get_rss_hash_opts(struct sxgbe_priv_data *priv,
case TCP_V6_FLOW:
case UDP_V6_FLOW:
cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ /* Fall through */
case SCTP_V6_FLOW:
case AH_ESP_V6_FLOW:
case AH_V6_FLOW:
--
2.7.4

2018-08-07 23:32:44

by Gustavo A. R. Silva

Subject: [PATCH 31/33] net: sfc: falcon: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 1384500 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/sfc/falcon/ethtool.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/sfc/falcon/ethtool.c b/drivers/net/ethernet/sfc/falcon/ethtool.c
index 5604915..1ccdb7a 100644
--- a/drivers/net/ethernet/sfc/falcon/ethtool.c
+++ b/drivers/net/ethernet/sfc/falcon/ethtool.c
@@ -963,6 +963,7 @@ ef4_ethtool_get_rxnfc(struct net_device *net_dev,
switch (info->flow_type) {
case TCP_V4_FLOW:
info->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
+ /* Fall through */
case UDP_V4_FLOW:
case SCTP_V4_FLOW:
case AH_ESP_V4_FLOW:
--
2.7.4

2018-08-07 23:33:49

by Gustavo A. R. Silva

Subject: [PATCH 33/33] net: ethernet: ti: cpts: mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114813 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/ti/cpts.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/ti/cpts.c b/drivers/net/ethernet/ti/cpts.c
index b4ea58d..b96b93c 100644
--- a/drivers/net/ethernet/ti/cpts.c
+++ b/drivers/net/ethernet/ti/cpts.c
@@ -161,6 +161,7 @@ static int cpts_fifo_read(struct cpts *cpts, int match)
*/
break;
}
+ /* fall through */
case CPTS_EV_PUSH:
case CPTS_EV_RX:
list_del_init(&event->list);
--
2.7.4

2018-08-07 23:34:07

by Gustavo A. R. Silva

Subject: [PATCH 32/33] net: tlan: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 141440 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/ti/tlan.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/ti/tlan.c b/drivers/net/ethernet/ti/tlan.c
index c769cd9..93d1428 100644
--- a/drivers/net/ethernet/ti/tlan.c
+++ b/drivers/net/ethernet/ti/tlan.c
@@ -966,6 +966,7 @@ static int tlan_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
switch (cmd) {
case SIOCGMIIPHY: /* get address of MII PHY in use. */
data->phy_id = phy;
+ /* fall through */


case SIOCGMIIREG: /* read MII PHY register. */
--
2.7.4

2018-08-07 23:36:28

by Gustavo A. R. Silva

Subject: [PATCH 03/33] bnx2x: Mark expected switch fall-thoughs

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Addresses-Coverity-ID: 114878 ("Missing break in switch")
Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/broadcom/bnxt/bnxt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index d7f51ab..8bb1e38 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -1729,8 +1729,8 @@ static int bnxt_async_event_process(struct bnxt *bp,
speed);
}
set_bit(BNXT_LINK_SPEED_CHNG_SP_EVENT, &bp->sp_event);
- /* fall through */
}
+ /* fall through */
case ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
set_bit(BNXT_LINK_CHNG_SP_EVENT, &bp->sp_event);
break;
--
2.7.4

2018-08-07 23:36:34

by Gustavo A. R. Silva

Subject: [PATCH 04/33] net: macb: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <[email protected]>
---
drivers/net/ethernet/cadence/macb_ptp.c | 1 +
1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/cadence/macb_ptp.c b/drivers/net/ethernet/cadence/macb_ptp.c
index 6788351..cd5296b8 100644
--- a/drivers/net/ethernet/cadence/macb_ptp.c
+++ b/drivers/net/ethernet/cadence/macb_ptp.c
@@ -466,6 +466,7 @@ int gem_set_hwtst(struct net_device *dev, struct ifreq *ifr, int cmd)
case HWTSTAMP_TX_ONESTEP_SYNC:
if (gem_ptp_set_one_step_sync(bp, 1) != 0)
return -ERANGE;
+ /* fall through */
case HWTSTAMP_TX_ON:
tx_bd_control = TSTAMP_ALL_FRAMES;
break;
--
2.7.4

2018-08-08 01:00:42

by David Miller

Subject: Re: [PATCH 00/33] net: ethernet: Mark expected switch fall-throughs

From: "Gustavo A. R. Silva" <[email protected]>
Date: Tue, 7 Aug 2018 18:09:00 -0500

> In preparation to enabling -Wimplicit-fallthrough, this patchset aims
> to add some annotations in order to mark switch cases where we are
> expecting to fall through.

Ok, I went through all of these and they look good.

If any are not correct we can revert/fix.

Series applied, thanks.

2018-08-08 16:29:37

by Gustavo A. R. Silva

Subject: Re: [PATCH 00/33] net: ethernet: Mark expected switch fall-throughs

On 8/7/18 7:59 PM, David Miller wrote:
> From: "Gustavo A. R. Silva" <[email protected]>
> Date: Tue, 7 Aug 2018 18:09:00 -0500
>
>> In preparation to enabling -Wimplicit-fallthrough, this patchset aims
>> to add some annotations in order to mark switch cases where we are
>> expecting to fall through.
>
> Ok, I went through all of these and they look good.
>
> If any are not correct we can revert/fix.
>

Yep. If anything is reported, I'll take a look right away.

> Series applied, thanks.
>

Thanks
--
Gustavo

2018-08-08 22:27:55

by Saeed Mahameed

Subject: Re: [PATCH 24/33] net/mlx5e: Mark expected switch fall-throughs

On Tue, Aug 7, 2018 at 4:25 PM, Gustavo A. R. Silva
<[email protected]> wrote:
> In preparation to enabling -Wimplicit-fallthrough, mark switch cases
> where we are expecting to fall through.
>
> Addresses-Coverity-ID: 114808 ("Missing break in switch")
> Addresses-Coverity-ID: 114802 ("Missing break in switch")
> Signed-off-by: Gustavo A. R. Silva <[email protected]>

Acked-by: Saeed Mahameed <[email protected]>

> ---
> drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
> index 1881468..ad6d471 100644
> --- a/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
> +++ b/drivers/net/ethernet/mellanox/mlx5/core/en/xdp.c
> @@ -91,9 +91,11 @@ bool mlx5e_xdp_handle(struct mlx5e_rq *rq, struct mlx5e_dma_info *di,
> return true;
> default:
> bpf_warn_invalid_xdp_action(act);
> + /* fall through */
> case XDP_ABORTED:
> xdp_abort:
> trace_xdp_exception(rq->netdev, prog, act);
> + /* fall through */
> case XDP_DROP:
> rq->stats->xdp_drop++;
> return true;
> --
> 2.7.4
>