[PATCH 1/2] net/tg3.c: use mmiowb in tg3_rx, tg3_start_xmit
From: <hidden>
Date: 2004-10-12 23:34:30
Using mmiowb() prevents an occasional oops in tg3_tx() resulting from a NULL skb pointer in the tx_ring_info structure. Signed-off-by: Greg Banks <redacted> ---
--- linux.1/drivers/net/tg3.c 2004-10-12 13:50:39.000000000 -0700
+++ linux/drivers/net/tg3.c 2004-10-12 13:55:37.000000000 -0700@@ -2729,6 +2729,7 @@ tw32_rx_mbox(MAILBOX_RCV_JUMBO_PROD_IDX + TG3_64BIT_REG_LOW, sw_idx); } + mmiowb(); return received; }
@@ -3176,6 +3177,7 @@ netif_stop_queue(dev); out_unlock: + mmiowb(); spin_unlock_irqrestore(&tp->tx_lock, flags); dev->trans_start = jiffies;