openwrt-xburst/target/linux/ixp4xx/patches-3.3/600-skb_avoid_dmabounce.patch

--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -177,6 +177,10 @@ struct sk_buff *__alloc_skb(unsigned int
 	struct sk_buff *skb;
 	u8 *data;
 
+#ifdef CONFIG_ARCH_IXP4XX
+	gfp_mask |= GFP_DMA;
+#endif
+
 	cache = fclone ? skbuff_fclone_cache : skbuff_head_cache;
 
 	/* Get the HEAD */
@@ -946,6 +950,10 @@ int pskb_expand_head(struct sk_buff *skb
 	if (skb_shared(skb))
 		BUG();
 
+#ifdef CONFIG_ARCH_IXP4XX
+	gfp_mask |= GFP_DMA;
+#endif
+
 	size = SKB_DATA_ALIGN(size);
 
 	/* Check if we can avoid taking references on fragments if we own