diff mbox

[4/4] ixgbevf: Resolve warnings for -Wimplicit-fallthrough

Message ID 20170512183810.26185-4-anthony.l.nguyen@intel.com
State Accepted
Delegated to: Jeff Kirsher
Headers show

Commit Message

Tony Nguyen May 12, 2017, 6:38 p.m. UTC
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>
---
 drivers/net/ethernet/intel/ixgbevf/vf.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

Bowers, AndrewX May 17, 2017, 9:51 p.m. UTC | #1
> -----Original Message-----

> From: Intel-wired-lan [mailto:intel-wired-lan-bounces@osuosl.org] On

> Behalf Of Tony Nguyen

> Sent: Friday, May 12, 2017 11:38 AM

> To: intel-wired-lan@lists.osuosl.org

> Subject: [Intel-wired-lan] [PATCH 4/4] ixgbevf: Resolve warnings for -

> Wimplicit-fallthrough

> 

> 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>

> ---

>  drivers/net/ethernet/intel/ixgbevf/vf.c | 2 ++

>  1 file changed, 2 insertions(+)


Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
diff mbox

Patch

diff --git a/drivers/net/ethernet/intel/ixgbevf/vf.c b/drivers/net/ethernet/intel/ixgbevf/vf.c
index b6d0c01..0c25006 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;
 	}