[net-next 10/15] ixgbevf: Resolve warnings for -Wimplicit-fallthrough

[Jeff Kirsher]

From: Tony Nguyen <anthony.l.ngu...@intel.com>

Additions to gcc 7 now warn whenever a switch statement falls through
implicitly.  This patch adds explicit fall through comments to address the
following warnings:

drivers/net/ethernet/intel/ixgbevf/vf.c: In function ‘ixgbevf_get_reta_locked’:
drivers/net/ethernet/intel/ixgbevf/vf.c:336:6: warning: this statement may fall 
through [-Wimplicit-fallthrough=]
   if (hw->mac.type < ixgbe_mac_X550_vf)
      ^
drivers/net/ethernet/intel/ixgbevf/vf.c:338:2: note: here
  default:
  ^~~~~~~
drivers/net/ethernet/intel/ixgbevf/vf.c: In function 
‘ixgbevf_get_rss_key_locked’:
drivers/net/ethernet/intel/ixgbevf/vf.c:402:6: warning: this statement may fall 
through [-Wimplicit-fallthrough=]
   if (hw->mac.type < ixgbe_mac_X550_vf)
      ^
drivers/net/ethernet/intel/ixgbevf/vf.c:404:2: note: here
  default:
  ^~~~~~~

Signed-off-by: Tony Nguyen <anthony.l.ngu...@intel.com>
Tested-by: Andrew Bowers <andrewx.bow...@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirs...@intel.com>
---
 drivers/net/ethernet/intel/ixgbevf/vf.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/intel/ixgbevf/vf.c 
b/drivers/net/ethernet/intel/ixgbevf/vf.c
index b6d0c01eab10..0c25006ce9af 100644
--- a/drivers/net/ethernet/intel/ixgbevf/vf.c
+++ b/drivers/net/ethernet/intel/ixgbevf/vf.c
@@ -335,6 +335,7 @@ int ixgbevf_get_reta_locked(struct ixgbe_hw *hw, u32 *reta, 
int num_rx_queues)
        case ixgbe_mbox_api_12:
                if (hw->mac.type < ixgbe_mac_X550_vf)
                        break;
+               /* fall through */
        default:
                return -EOPNOTSUPP;
        }
@@ -401,6 +402,7 @@ int ixgbevf_get_rss_key_locked(struct ixgbe_hw *hw, u8 
*rss_key)
        case ixgbe_mbox_api_12:
                if (hw->mac.type < ixgbe_mac_X550_vf)
                        break;
+               /* fall through */
        default:
                return -EOPNOTSUPP;
        }
-- 
2.12.2