diff options
Diffstat (limited to 'net/packet')
| -rw-r--r-- | net/packet/af_packet.c | 37 |
1 files changed, 15 insertions, 22 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index d711ecbbb9d3..59fb3db2e713 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -2009,19 +2009,20 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, sll->sll_ifindex = dev->ifindex; smp_mb(); + #if ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE == 1 - { + if (po->tp_version <= TPACKET_V2) { u8 *start, *end; - if (po->tp_version <= TPACKET_V2) { - end = (u8 *)PAGE_ALIGN((unsigned long)h.raw - + macoff + snaplen); - for (start = h.raw; start < end; start += PAGE_SIZE) - flush_dcache_page(pgv_to_page(start)); - } - smp_wmb(); + end = (u8 *) PAGE_ALIGN((unsigned long) h.raw + + macoff + snaplen); + + for (start = h.raw; start < end; start += PAGE_SIZE) + flush_dcache_page(pgv_to_page(start)); } + smp_wmb(); #endif + if (po->tp_version <= TPACKET_V2) __packet_set_status(po, h.raw, status); else @@ -2050,9 +2051,9 @@ ring_is_full: static void tpacket_destruct_skb(struct sk_buff *skb) { struct packet_sock *po = pkt_sk(skb->sk); - void *ph; if (likely(po->tx_ring.pg_vec)) { + void *ph; __u32 ts; ph = skb_shinfo(skb)->destructor_arg; @@ -3649,34 +3650,26 @@ static void free_pg_vec(struct pgv *pg_vec, unsigned int order, static char *alloc_one_pg_vec_page(unsigned long order) { - char *buffer = NULL; + char *buffer; gfp_t gfp_flags = GFP_KERNEL | __GFP_COMP | __GFP_ZERO | __GFP_NOWARN | __GFP_NORETRY; buffer = (char *) __get_free_pages(gfp_flags, order); - if (buffer) return buffer; - /* - * __get_free_pages failed, fall back to vmalloc - */ + /* __get_free_pages failed, fall back to vmalloc */ buffer = vzalloc((1 << order) * PAGE_SIZE); - if (buffer) return buffer; - /* - * vmalloc failed, lets dig into swap here - */ + /* vmalloc failed, lets dig into swap here */ gfp_flags &= ~__GFP_NORETRY; - buffer = (char *)__get_free_pages(gfp_flags, order); + buffer = (char *) __get_free_pages(gfp_flags, order); if (buffer) return buffer; - /* - * complete and utter failure - */ + /* complete and utter failure */ return NULL; } |