[PATCH net-next,2/2] virtio_net: replace RSS key size max check with BUILD_BUG_ON

[Srujana Challa <schalla@marvell.com>]

Since NETDEV_RSS_KEY_LEN was increased to 256 in net-next, use
BUILD_BUG_ON to enforce the limit at compile time and remove the
redundant runtime max check.

Signed-off-by: Srujana Challa <schalla@marvell.com>
---
 drivers/net/virtio_net.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index eeefe8abc122..3092d5d9d3e4 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -6639,13 +6639,7 @@ static int virtnet_validate(struct virtio_device *vdev)
 			__virtio_clear_bit(vdev, VIRTIO_NET_F_RSS);
 			__virtio_clear_bit(vdev, VIRTIO_NET_F_HASH_REPORT);
 		}
-		if (key_sz > NETDEV_RSS_KEY_LEN) {
-			dev_warn(&vdev->dev,
-				 "rss_max_key_size=%u exceeds driver limit %u, disabling RSS\n",
-				 key_sz, NETDEV_RSS_KEY_LEN);
-			__virtio_clear_bit(vdev, VIRTIO_NET_F_RSS);
-			__virtio_clear_bit(vdev, VIRTIO_NET_F_HASH_REPORT);
-		}
+		BUILD_BUG_ON(type_max(vi->rss_key_size) >= NETDEV_RSS_KEY_LEN);
 	}
 
 	return 0;
-- 
2.25.1