Messages in this thread Patch in this message | | | Subject | [PATCH 5/6] packet: Add needed_tailroom to packet_sendmsg_spkt | From | Herbert Xu <> | Date | Fri, 18 Nov 2011 20:20:05 +0800 |
| |
packet: Add needed_tailroom to packet_sendmsg_spkt
While auditing LL_ALLOCATED_SPACE I noticed that packet_sendmsg_spkt did not include needed_tailroom when allocating an skb. This isn't a fatal error as we should always tolerate inadequate tail room but it isn't optimal.
This patch fixes that.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> ---
net/packet/af_packet.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 71c1a75..0da505c 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1499,10 +1499,11 @@ retry: if (!skb) { size_t reserved = LL_RESERVED_SPACE(dev); + int tlen = dev->needed_tailroom; unsigned int hhlen = dev->header_ops ? dev->hard_header_len : 0; rcu_read_unlock(); - skb = sock_wmalloc(sk, len + reserved, 0, GFP_KERNEL); + skb = sock_wmalloc(sk, len + reserved + tlen, 0, GFP_KERNEL); if (skb == NULL) return -ENOBUFS; /* FIXME: Save some space for broken drivers that write a hard
| |