Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 2d99cf16 authored by Stanislaw Gruszka's avatar Stanislaw Gruszka Committed by David S. Miller
Browse files

bnx2x: use smp_mb() to keep ordering of read write operations 



Since we want to keep ordering of write to fp->bd_tx_cons and
netif_tx_queue_stopped(txq), what is read of txq->state, we have to use
general memory barrier.

Signed-off-by: default avatarStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d4a2ac3e

drivers/net/bnx2x_main.c

+1 −1
Original line number Diff line number Diff line
@@ -963,7 +963,7 @@ static int bnx2x_tx_int(struct bnx2x_fastpath *fp) 
	 * start_xmit() will miss it and cause the queue to be stopped

	 * forever.

	 */

	smp_wmb();

	smp_mb();



	/* TBD need a thresh? */

	if (unlikely(netif_tx_queue_stopped(txq))) {