718 struct sk_buff {  struct
722 			struct sk_buff		*next;  argument
758 			void		(*destructor)(struct sk_buff *skb);  argument
782 #define CLONED_OFFSET()		offsetof(struct sk_buff, __cloned_offset)  argument
785 	__u8			__cloned_offset[0];
809 #define PKT_TYPE_OFFSET()	offsetof(struct sk_buff, __pkt_type_offset)  argument
835 #define PKT_VLAN_PRESENT_OFFSET()	offsetof(struct sk_buff, __pkt_vlan_present_offset)  argument
837 	__u8			__pkt_vlan_present_offset[0];
839 	__u8			vlan_present:1;
840 	__u8			csum_complete_sw:1;
841 	__u8			csum_level:2;
842 	__u8			csum_not_inet:1;
843 	__u8			dst_pending_confirm:1;
845 	__u8			ndisc_nodetype:2;
848 	__u8			ipvs_property:1;
849 	__u8			inner_protocol_type:1;
850 	__u8			remcsum_offload:1;
852 	__u8			offload_fwd_mark:1;
853 	__u8			offload_l3_fwd_mark:1;
856 	__u8			tc_skip_classify:1;
857 	__u8			tc_at_ingress:1;
860 	__u8			redirected:1;
861 	__u8			from_ingress:1;
864 	__u8			decrypted:1;
868 	__u16			tc_index;	/* traffic control index */
871 	union {
878 	__u32			priority;
879 	int			skb_iif;
880 	__u32			hash;
881 	__be16			vlan_proto;
882 	__u16			vlan_tci;
884 	union {
890 	__u32		secmark;
893 	union {
898 	union {
903 	__u16			inner_transport_header;
904 	__u16			inner_network_header;
905 	__u16			inner_mac_header;
907 	__be16			protocol;
908 	__u16			transport_header;
909 	__u16			network_header;
910 	__u16			mac_header;
934 	sk_buff_data_t		tail;  argument
935 	sk_buff_data_t		end;  argument
936 	unsigned char		*head,
960 static inline bool skb_pfmemalloc(const struct sk_buff *skb)  in skb_pfmemalloc()  argument