diff mbox series

[jkirsher/next-queue,08/16] ixgbe: Assume provided MAC filter has been verified by macvlan

Message ID 20171122185658.29785.82075.stgit@localhost.localdomain
State Accepted
Delegated to: Jeff Kirsher
Headers show
Series ixgbe/fm10k: macvlan fixes | expand

Commit Message

Alexander H Duyck Nov. 22, 2017, 6:56 p.m. UTC 
From: Alexander Duyck <alexander.h.duyck@intel.com>

The macvlan driver itself will validate the MAC address that is configured
for a given interface. There is no need for us to verify it again.

Instead we should be checking to verify that we actuall allocate the filter
and have not run out of resources to configure a MAC rule in our filter
table.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |   12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

Comments

Bowers, AndrewX Nov. 29, 2017, 5:06 p.m. UTC | #1 
> -----Original Message-----
> From: Intel-wired-lan [mailto:intel-wired-lan-bounces@osuosl.org] On
> Behalf Of Alexander Duyck
> Sent: Wednesday, November 22, 2017 10:57 AM
> To: intel-wired-lan@lists.osuosl.org
> Subject: [Intel-wired-lan] [jkirsher/next-queue PATCH 08/16] ixgbe: Assume
> provided MAC filter has been verified by macvlan
> 
> From: Alexander Duyck <alexander.h.duyck@intel.com>
> 
> The macvlan driver itself will validate the MAC address that is configured for a
> given interface. There is no need for us to verify it again.
> 
> Instead we should be checking to verify that we actuall allocate the filter and
> have not run out of resources to configure a MAC rule in our filter table.
> 
> Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
> ---
>  drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |   12 ++++++++----
>  1 file changed, 8 insertions(+), 4 deletions(-)

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

Patch

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 09754519a0d9..6b553f96ead9 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -5404,12 +5404,16 @@  static int ixgbe_fwd_ring_up(struct net_device *vdev,
 	if (err)
 		goto fwd_queue_err;
 
-	if (is_valid_ether_addr(vdev->dev_addr))
-		ixgbe_add_mac_filter(adapter, vdev->dev_addr,
-				     VMDQ_P(accel->pool));
+	/* ixgbe_add_mac_filter will return an index if it succeeds, so we
+	 * need to only treat it as an error value if it is negative.
+	 */
+	err = ixgbe_add_mac_filter(adapter, vdev->dev_addr,
+				   VMDQ_P(accel->pool));
+	if (err < 0)
+		goto fwd_queue_err;
 
 	ixgbe_macvlan_set_rx_mode(vdev, VMDQ_P(accel->pool), adapter);
-	return err;
+	return 0;
 fwd_queue_err:
 	ixgbe_fwd_ring_down(vdev, accel);
 	return err;