From f08269d3ecbb9300aeeb2d4272580f660afe9db9 Mon Sep 17 00:00:00 2001 From: Allan Stephens Date: Thu, 8 May 2008 21:38:24 -0700 Subject: tipc: Increase buffer header to support worst-case device This patch increases the headroom TIPC reserves in each sk_buff to accommodate the largest possible link level device header. Signed-off-by: Allan Stephens Signed-off-by: David S. Miller --- net/tipc/core.h | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) (limited to 'net') diff --git a/net/tipc/core.h b/net/tipc/core.h index 325404fd4eb5..5a0e4878d3b7 100644 --- a/net/tipc/core.h +++ b/net/tipc/core.h @@ -279,15 +279,14 @@ static inline void k_term_timer(struct timer_list *timer) /* * TIPC message buffer code * - * TIPC message buffer headroom reserves space for a link-level header - * (in case the message is sent off-node), - * while ensuring TIPC header is word aligned for quicker access + * TIPC message buffer headroom reserves space for the worst-case + * link-level device header (in case the message is sent off-node). * - * The largest header currently supported is 18 bytes, which is used when - * the standard 14 byte Ethernet header has 4 added bytes for VLAN info + * Note: Headroom should be a multiple of 4 to ensure the TIPC header fields + * are word aligned for quicker access */ -#define BUF_HEADROOM 20u +#define BUF_HEADROOM LL_MAX_HEADER struct tipc_skb_cb { void *handle; -- cgit v1.2.3-58-ga151