From: Tony Nguyen <anthony.l.nguyen@intel.com>
Date: Wed, 31 May 2017 04:43:47 -0700
Subject: ixgbe: Resolve warnings for -Wimplicit-fallthrough
Patch-mainline: v4.13-rc1
Git-commit: 93df9465c93e634c49f18271218076ab0b9aaf75
References: bsc#1056657 FATE#322189 bsc#1056653 FATE#322190
This patch adds/changes fall through comments to address new warnings
produced by gcc 7.
Fixed formatting on a couple of comments in the function.
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Benjamin Poirier <bpoirier@suse.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c | 9 ++++++---
drivers/net/ethernet/intel/ixgbe/ixgbe_common.c | 4 ++--
drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 1 +
drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 8 ++++++--
drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c | 7 +++----
5 files changed, 18 insertions(+), 11 deletions(-)
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_82599.c
@@ -1589,15 +1589,17 @@ s32 ixgbe_fdir_set_input_mask_82599(stru
switch (ntohs(input_mask->formatted.vlan_id) & 0xEFFF) {
case 0x0000:
- /* mask VLAN ID, fall through to mask VLAN priority */
+ /* mask VLAN ID */
fdirm |= IXGBE_FDIRM_VLANID;
+ /* fall through */
case 0x0FFF:
/* mask VLAN priority */
fdirm |= IXGBE_FDIRM_VLANP;
break;
case 0xE000:
- /* mask VLAN ID only, fall through */
+ /* mask VLAN ID only */
fdirm |= IXGBE_FDIRM_VLANID;
+ /* fall through */
case 0xEFFF:
/* no VLAN fields masked */
break;
@@ -1608,8 +1610,9 @@ s32 ixgbe_fdir_set_input_mask_82599(stru
switch (input_mask->formatted.flex_bytes & 0xFFFF) {
case 0x0000:
- /* Mask Flex Bytes, fall through */
+ /* Mask Flex Bytes */
fdirm |= IXGBE_FDIRM_FLEX;
+ /* fall through */
case 0xFFFF:
break;
default:
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_common.c
@@ -155,7 +155,7 @@ s32 ixgbe_setup_fc_generic(struct ixgbe_
if (ret_val)
return ret_val;
- /* only backplane uses autoc so fall though */
+ /* fall through - only backplane uses autoc */
case ixgbe_media_type_fiber:
reg = IXGBE_READ_REG(hw, IXGBE_PCS1GANA);
@@ -3549,7 +3549,7 @@ void ixgbe_set_rxpba_generic(struct ixgb
rxpktsize <<= IXGBE_RXPBSIZE_SHIFT;
for (; i < (num_pb / 2); i++)
IXGBE_WRITE_REG(hw, IXGBE_RXPBSIZE(i), rxpktsize);
- /* Fall through to configure remaining packet buffers */
+ /* fall through - configure remaining packet buffers */
case (PBA_STRATEGY_EQUAL):
/* Divide the remaining Rx packet buffer evenly among the TCs */
rxpktsize = (pbsize / (num_pb - i)) << IXGBE_RXPBSIZE_SHIFT;
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -2668,6 +2668,7 @@ static int ixgbe_flowspec_to_flow_type(s
*flow_type = IXGBE_ATR_FLOW_TYPE_IPV4;
break;
}
+ /* fall through */
default:
return 0;
}
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -1452,7 +1452,7 @@ static int __ixgbe_notify_dca(struct dev
IXGBE_DCA_CTRL_DCA_MODE_CB2);
break;
}
- /* Fall Through since DCA is disabled. */
+ /* fall through - DCA is disabled. */
case DCA_PROVIDER_REMOVE:
if (adapter->flags & IXGBE_FLAG_DCA_ENABLED) {
dca_remove_requester(dev);
@@ -2233,6 +2233,7 @@ static struct sk_buff *ixgbe_run_xdp(str
break;
default:
bpf_warn_invalid_xdp_action(act);
+ /* fallthrough */
case XDP_ABORTED:
trace_xdp_exception(rx_ring->netdev, xdp_prog, act);
/* fallthrough -- handle aborts by dropping packet */
@@ -4177,7 +4178,7 @@ static void ixgbe_setup_rdrxctl(struct i
case ixgbe_mac_x550em_a:
if (adapter->num_vfs)
rdrxctl |= IXGBE_RDRXCTL_PSP;
- /* fall through for older HW */
+ /* fall through */
case ixgbe_mac_82599EB:
case ixgbe_mac_X540:
/* Disable RSC for ACK packets */
@@ -6885,6 +6886,7 @@ void ixgbe_update_stats(struct ixgbe_ada
hwstats->o2bspc += IXGBE_READ_REG(hw, IXGBE_O2BSPC);
hwstats->b2ospc += IXGBE_READ_REG(hw, IXGBE_B2OSPC);
hwstats->b2ogprc += IXGBE_READ_REG(hw, IXGBE_B2OGPRC);
+ /* fall through */
case ixgbe_mac_82599EB:
for (i = 0; i < 16; i++)
adapter->hw_rx_no_dma_resources +=
@@ -8207,6 +8209,7 @@ static u16 ixgbe_select_queue(struct net
if (adapter->flags & IXGBE_FLAG_FCOE_ENABLED)
break;
+ /* fall through */
default:
return fallback(dev, skb);
}
@@ -9931,6 +9934,7 @@ bool ixgbe_wol_supported(struct ixgbe_ad
/* only support first port */
if (hw->bus.func != 0)
break;
+ /* fall through */
case IXGBE_SUBDEV_ID_82599_SP_560FLR:
case IXGBE_SUBDEV_ID_82599_SFP:
case IXGBE_SUBDEV_ID_82599_RNDC:
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_sriov.c
@@ -540,16 +540,15 @@ static s32 ixgbe_set_vf_lpe(struct ixgbe
case ixgbe_mbox_api_11:
case ixgbe_mbox_api_12:
case ixgbe_mbox_api_13:
- /*
- * Version 1.1 supports jumbo frames on VFs if PF has
+ /* Version 1.1 supports jumbo frames on VFs if PF has
* jumbo frames enabled which means legacy VFs are
* disabled
*/
if (pf_max_frame > ETH_FRAME_LEN)
break;
+ /* fall through */
default:
- /*
- * If the PF or VF are running w/ jumbo frames enabled
+ /* If the PF or VF are running w/ jumbo frames enabled
* we need to shut down the VF Rx path as we cannot
* support jumbo frames on legacy VFs
*/