---

yaml --- r: 184311 b: refs/heads/master c: 61e800c h: refs/heads/master i: 184309: 4d1c090 184307: 73394cd 184303: 9f14555 v: v3
git-mirror · Feb 18, 2010 · 7dd20b4 · 7dd20b4
1 parent 715009b
commit 7dd20b4
Show file tree

Hide file tree

Showing 2 changed files with 8 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 99405162598176e830d17ae6d4f3d9e070ad900c
+refs/heads/master: 61e800cf949926b3d463ca3cf3025d964872774b
diff --git a/trunk/drivers/net/tg3.c b/trunk/drivers/net/tg3.c
@@ -4659,11 +4659,16 @@ static int tg3_rx(struct tg3_napi *tnapi, int budget)
 			if (skb_size < 0)
 				goto drop_it;
 
-			ri->skb = NULL;
-
 			pci_unmap_single(tp->pdev, dma_addr, skb_size,
 					 PCI_DMA_FROMDEVICE);
 
+			/* Ensure that the update to the skb happens
+			 * after the usage of the old DMA mapping.
+			 */
+			smp_wmb();
+
+			ri->skb = NULL;
+
 			skb_put(skb, len);
 		} else {
 			struct sk_buff *copy_skb;