mirror of https://gitee.com/openkylin/linux.git
689be43945
Many drivers use skb->tail unnecessarily. In these situations, the code roughly looks like: dev = dev_alloc_skb(...); [optional] skb_reserve(skb, ...); ... skb->tail ... But even if the skb_reserve() happens, skb->data equals skb->tail. So it doesn't make any sense to use anything other than skb->data in these cases. Another case was the s2io.c driver directly mucking with the skb->data and skb->tail pointers. It really just wanted to do an skb_reserve(), so that's what the code was changed to do instead. Another reason I'm making this change as it allows some SKB cleanups I have planned simpler to merge. In those cleanups, skb->head, skb->tail, and skb->end pointers are removed, and replaced with skb->head_room and skb->tail_room integers. Signed-off-by: David S. Miller <davem@davemloft.net> Acked-by: Jeff Garzik <jgarzik@pobox.com> |
||
|---|---|---|
| .. | ||
| 21142.c | ||
| Kconfig | ||
| Makefile | ||
| de4x5.c | ||
| de4x5.h | ||
| de2104x.c | ||
| dmfe.c | ||
| eeprom.c | ||
| interrupt.c | ||
| media.c | ||
| pnic.c | ||
| pnic2.c | ||
| timer.c | ||
| tulip.h | ||
| tulip_core.c | ||
| winbond-840.c | ||
| xircom_cb.c | ||
| xircom_tulip_cb.c | ||