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authorMichał Mirosław <mirq-linux@rere.qmqm.pl>2018-11-10 21:58:34 +0300
committerDavid S. Miller <davem@davemloft.net>2018-11-17 06:25:28 +0300
commit5109f9fd6a76116090b34a192d4a957d2ad0621e (patch)
treea383afa11092adc24f6cf472aa44cb97b4b9547b /include/linux/skbuff.h
parent5aa25c05be0223aea170385484b0965c9fd90144 (diff)
downloadlinux-5109f9fd6a76116090b34a192d4a957d2ad0621e.tar.xz
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>
Diffstat (limited to 'include/linux/skbuff.h')
-rw-r--r--include/linux/skbuff.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 7dcfb5591dc3..99f38779332c 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -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)