ixp4xx: add back the patch for avoiding dma bounce buffers for network buffers, which...

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@20708 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/ixp4xx/patches-2.6.32/600-skb_avoid_dmabounce.patch b/target/linux/ixp4xx/patches-2.6.32/600-skb_avoid_dmabounce.patch
new file mode 100644 (file)
index 0000000..21be828
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.32/600-skb_avoid_dmabounce.patch
@@ -0,0 +1,13 @@
+--- a/net/core/skbuff.c
++++ b/net/core/skbuff.c
+@@ -264,6 +264,10 @@ struct sk_buff *__alloc_skb(unsigned int
+       if (!skb)
+               goto out;
+ 
++#ifdef CONFIG_ARCH_IXP4XX
++      gfp_mask |= GFP_DMA;
++#endif
++
+       size = SKB_DATA_ALIGN(size);
+       data = kmalloc_node_track_caller(size + sizeof(struct skb_shared_info),
+                       gfp_mask, node);