From: Tony Nguyen <anthony.l.nguyen@intel.com>
Date: Fri, 12 May 2017 11:38:10 -0700
Subject: ixgbevf: Resolve warnings for -Wimplicit-fallthrough
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Patch-mainline: v4.13-rc1
Git-commit: 80666035c70bc8def691b4cb98fa39da3d6fdee1
References: bsc#1056657 FATE#322189 bsc#1056653 FATE#322190

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.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/ixgbevf/vf.c |    2 ++
 1 file changed, 2 insertions(+)

--- 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
 	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 ix
 	case ixgbe_mbox_api_12:
 		if (hw->mac.type < ixgbe_mac_X550_vf)
 			break;
+		/* fall through */
 	default:
 		return -EOPNOTSUPP;
 	}