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net: Add SKB DMA mapping helper functions.

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2008-09-11 04:51:14 -07:00
parent 271bff7afb
commit a40c24a133
3 changed files with 75 additions and 0 deletions
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8
include/linux/skbuff.h
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@@ -359,6 +359,14 @@ struct sk_buff {
#include <asm/system.h>
#ifdef CONFIG_HAS_DMA
#include <linux/dma-mapping.h>
extern int skb_dma_map(struct device *dev, struct sk_buff *skb,
enum dma_data_direction dir);
extern void skb_dma_unmap(struct device *dev, struct sk_buff *skb,
enum dma_data_direction dir);
#endif
extern void kfree_skb(struct sk_buff *skb);
extern void __kfree_skb(struct sk_buff *skb);
extern struct sk_buff *__alloc_skb(unsigned int size,