diff options
| author |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2007-04-19 20:43:29 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@sunset.davemloft.net> | 2007-04-25 22:26:29 -0700 |
| commit | 4305b541357ddbd205aa145dc378926b7cb12283 (patch) | |
| tree | 9b1f57ee4ee757a9324c48a7dea84bc8c279ad82 /include | |
| parent | [SK_BUFF]: Convert skb->tail to sk_buff_data_t (diff) | |
| download | linux-dev-4305b541357ddbd205aa145dc378926b7cb12283.tar.xz linux-dev-4305b541357ddbd205aa145dc378926b7cb12283.zip | |
[SK_BUFF]: Convert skb->end to sk_buff_data_t
Now to convert the last one, skb->data, that will allow many simplifications
and removal of some of the offset helpers.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/skbuff.h | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index e1c2392ecb56..656dc0e901cc 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -305,9 +305,9 @@ struct sk_buff { sk_buff_data_t mac_header; /* These elements must be at the end, see alloc_skb() for details. */ sk_buff_data_t tail; + sk_buff_data_t end; unsigned char *head, - *data, - *end; + *data; unsigned int truesize; atomic_t users; }; @@ -392,8 +392,20 @@ extern unsigned int skb_find_text(struct sk_buff *skb, unsigned int from, unsigned int to, struct ts_config *config, struct ts_state *state); +#ifdef NET_SKBUFF_DATA_USES_OFFSET +static inline unsigned char *skb_end_pointer(const struct sk_buff *skb) +{ + return skb->head + skb->end; +} +#else +static inline unsigned char *skb_end_pointer(const struct sk_buff *skb) +{ + return skb->end; +} +#endif + /* Internal */ -#define skb_shinfo(SKB) ((struct skb_shared_info *)((SKB)->end)) +#define skb_shinfo(SKB) ((struct skb_shared_info *)(skb_end_pointer(SKB))) /** * skb_queue_empty - check if a queue is empty @@ -843,6 +855,7 @@ static inline void skb_set_tail_pointer(struct sk_buff *skb, const int offset) { skb->tail = skb->data + offset; } + #endif /* NET_SKBUFF_DATA_USES_OFFSET */ /* @@ -872,7 +885,7 @@ static inline unsigned char *skb_put(struct sk_buff *skb, unsigned int len) SKB_LINEAR_ASSERT(skb); skb->tail += len; skb->len += len; - if (unlikely(skb_tail_pointer(skb) > skb->end)) + if (unlikely(skb->tail > skb->end)) skb_over_panic(skb, len, current_text_addr()); return tmp; } @@ -968,7 +981,7 @@ static inline int skb_headroom(const struct sk_buff *skb) */ static inline int skb_tailroom(const struct sk_buff *skb) { - return skb_is_nonlinear(skb) ? 0 : skb->end - skb_tail_pointer(skb); + return skb_is_nonlinear(skb) ? 0 : skb->end - skb->tail; } /** |