diff options
-rw-r--r-- | include/linux/skbuff.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 08670d017479..5eba4007e07f 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h | |||
@@ -1287,7 +1287,7 @@ static inline int skb_network_offset(const struct sk_buff *skb) | |||
1287 | * The networking layer reserves some headroom in skb data (via | 1287 | * The networking layer reserves some headroom in skb data (via |
1288 | * dev_alloc_skb). This is used to avoid having to reallocate skb data when | 1288 | * dev_alloc_skb). This is used to avoid having to reallocate skb data when |
1289 | * the header has to grow. In the default case, if the header has to grow | 1289 | * the header has to grow. In the default case, if the header has to grow |
1290 | * 16 bytes or less we avoid the reallocation. | 1290 | * 32 bytes or less we avoid the reallocation. |
1291 | * | 1291 | * |
1292 | * Unfortunately this headroom changes the DMA alignment of the resulting | 1292 | * Unfortunately this headroom changes the DMA alignment of the resulting |
1293 | * network packet. As for NET_IP_ALIGN, this unaligned DMA is expensive | 1293 | * network packet. As for NET_IP_ALIGN, this unaligned DMA is expensive |
@@ -1295,11 +1295,11 @@ static inline int skb_network_offset(const struct sk_buff *skb) | |||
1295 | * perhaps setting it to a cacheline in size (since that will maintain | 1295 | * perhaps setting it to a cacheline in size (since that will maintain |
1296 | * cacheline alignment of the DMA). It must be a power of 2. | 1296 | * cacheline alignment of the DMA). It must be a power of 2. |
1297 | * | 1297 | * |
1298 | * Various parts of the networking layer expect at least 16 bytes of | 1298 | * Various parts of the networking layer expect at least 32 bytes of |
1299 | * headroom, you should not reduce this. | 1299 | * headroom, you should not reduce this. |
1300 | */ | 1300 | */ |
1301 | #ifndef NET_SKB_PAD | 1301 | #ifndef NET_SKB_PAD |
1302 | #define NET_SKB_PAD 16 | 1302 | #define NET_SKB_PAD 32 |
1303 | #endif | 1303 | #endif |
1304 | 1304 | ||
1305 | extern int ___pskb_trim(struct sk_buff *skb, unsigned int len); | 1305 | extern int ___pskb_trim(struct sk_buff *skb, unsigned int len); |