openwrtv3/target/linux/ixp4xx/patches-4.9/600-skb_avoid_dmabounce.patch
Ted Hess 358df5e4fc ixp4xx: Update to 4.9 kernel, refresh patches. Remove kmod-spi-gpio-old usage.
Signed-off-by: Ted Hess <thess@kitschensync.net>
2017-11-18 08:21:38 -05:00

23 lines
562 B
Diff

--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -215,6 +215,9 @@ struct sk_buff *__alloc_skb(unsigned int
if (sk_memalloc_socks() && (flags & SKB_ALLOC_RX))
gfp_mask |= __GFP_MEMALLOC;
+#ifdef CONFIG_ARCH_IXP4XX
+ gfp_mask |= GFP_DMA;
+#endif
/* Get the HEAD */
skb = kmem_cache_alloc_node(cache, gfp_mask & ~__GFP_DMA, node);
@@ -1222,6 +1225,10 @@ 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);
if (skb_pfmemalloc(skb))