igmp_mcf_iter_state
#define igmp_mcf_seq_private(seq) ((struct igmp_mcf_iter_state *)(seq)->private)
struct igmp_mcf_iter_state *state = igmp_mcf_seq_private(seq);
struct igmp_mcf_iter_state *state = igmp_mcf_seq_private(seq);
struct igmp_mcf_iter_state *state = igmp_mcf_seq_private(seq);
struct igmp_mcf_iter_state *state = igmp_mcf_seq_private(seq);
&igmp_mcf_seq_ops, sizeof(struct igmp_mcf_iter_state));