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Commit f08269d3 authored by Allan Stephens's avatar Allan Stephens Committed by David S. Miller
Browse files

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: default avatarAllan Stephens <allan.stephens@windriver.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e46b66bc

net/tipc/core.h

+5 −6
Original line number Diff line number Diff line
@@ -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;