tree 99610de8cfed12e7be3ad2b7f03996e66b7ca8a0
parent c8c40b7f32abe0878ee693480fb2f7453d80add5
author Yevgeny Petrilin <yevgenyp@mellanox.co.il> 1343954317 +0000
committer David S. Miller <davem@davemloft.net> 1344037742 -0700

net/mlx4_en: Fixing TX queue stop/wake flow

Removing the ring->blocked flag, it is redundant and leads to a race:

We close the TX queue and then set the "blocked" flag.
Between those 2 operations the completion function can check the "blocked"
flag, sees that it is 0, and wouldn't open the TX queue.

Using netif_tx_queue_stopped to check the state of the queue to avoid this race.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>