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net/skbuff: add macros for VLAN_PRESENT bit 

Wrap VLAN_PRESENT bit using macro like PKT_TYPE_* and CLONED_*,
as used by BPF code.

Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michał Mirosław 2018-11-10 19:58:34 +01:00 committed by David S. Miller
parent 5aa25c05be
commit 5109f9fd6a
1 changed files with 6 additions and 0 deletions
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6
include/linux/skbuff.h
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@ -816,6 +816,12 @@ struct sk_buff {
__u32 priority;
int skb_iif;
__u32 hash;
#define PKT_VLAN_PRESENT_BIT 4 // CFI (12-th bit) in TCI
#ifdef __BIG_ENDIAN
#define PKT_VLAN_PRESENT_OFFSET() offsetof(struct sk_buff, vlan_tci)
#else
#define PKT_VLAN_PRESENT_OFFSET() (offsetof(struct sk_buff, vlan_tci) + 1)
#endif
__be16 vlan_proto;
__u16 vlan_tci;
#if defined(CONFIG_NET_RX_BUSY_POLL) || defined(CONFIG_XPS)