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Date:   Tue, 19 Feb 2019 14:27:11 -0600
From:   "Gustavo A. R. Silva" <>
To:     Jeff Kirsher <>,
        "David S. Miller" <>
        "Gustavo A. R. Silva" <>,
        Kees Cook <>
Subject: [PATCH net-next] igb: e1000_82575: mark expected switch fall-through

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

This patch fixes the following warning:

drivers/net/ethernet/intel/igb/e1000_82575.c: In function ‘igb_get_invariants_82575’:
drivers/net/ethernet/intel/igb/e1000_82575.c:636:6: warning: this statement may fall through [-Wimplicit-fallthrough=]
   if (igb_sgmii_uses_mdio_82575(hw)) {
drivers/net/ethernet/intel/igb/e1000_82575.c:642:2: note: here

Warning level 3 was used: -Wimplicit-fallthrough=3

Notice that, in this particular case, the code comment is modified
in accordance with what GCC is expecting to find.

This patch is part of the ongoing efforts to enable

Signed-off-by: Gustavo A. R. Silva <>
 drivers/net/ethernet/intel/igb/e1000_82575.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c
index bafdcf70a353..3ec2ce0725d5 100644
--- a/drivers/net/ethernet/intel/igb/e1000_82575.c
+++ b/drivers/net/ethernet/intel/igb/e1000_82575.c
@@ -638,7 +638,7 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
 			dev_spec->sgmii_active = true;
-		/* fall through for I2C based SGMII */
+		/* fall through - for I2C based SGMII */
 		/* read media type from SFP EEPROM */
 		ret_val = igb_set_sfp_media_type_82575(hw);

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