Extern or forward variable declaration at include/linux/bpf.h, line 974 References: include/linux/bpf.h, line 974 include/linux/bpf.h, line 975 include/linux/bpf.h, line 977 include/linux/bpf.h, line 980 include/linux/bpf.h, line 981 include/linux/bpf.h, line 988 include/net/xdp_sock.h, line 53 include/net/xdp_sock.h, line 82 include/net/xdp_sock.h, line 83 include/net/xdp_sock.h, line 84 include/net/xdp_sock.h, line 85 include/net/xdp_sock.h, line 148 include/net/xdp_sock.h, line 153 include/net/xdp_sock.h, line 158 include/net/xdp_sock.h, line 162 kernel/bpf/xskmap.c, line 14 kernel/bpf/xskmap.c, line 38 kernel/bpf/xskmap.c, line 56 kernel/bpf/xskmap.c, line 80 kernel/bpf/xskmap.c, line 111 kernel/bpf/xskmap.c, line 114 kernel/bpf/xskmap.c, line 124 kernel/bpf/xskmap.c, line 144 kernel/bpf/xskmap.c, line 168 kernel/bpf/xskmap.c, line 188 kernel/bpf/xskmap.c, line 208 net/core/filter.c, line 3537 net/core/filter.c, line 3665 net/core/filter.c, line 5763 net/core/filter.c, line 5765 net/core/filter.c, line 5767 net/xdp/xdp_umem.c, line 25 net/xdp/xdp_umem.c, line 34 net/xdp/xdp_umem.h, line 17 net/xdp/xdp_umem.h, line 18 net/xdp/xsk.c, line 34 net/xdp/xsk.c, line 58 net/xdp/xsk.c, line 95 net/xdp/xsk.c, line 105 net/xdp/xsk.c, line 118 net/xdp/xsk.c, line 124 net/xdp/xsk.c, line 177 net/xdp/xsk.c, line 189 net/xdp/xsk.c, line 212 net/xdp/xsk.c, line 221 net/xdp/xsk.c, line 235 net/xdp/xsk.c, line 302 net/xdp/xsk.c, line 321 net/xdp/xsk.c, line 349 net/xdp/xsk.c, line 368 net/xdp/xsk.c, line 419 net/xdp/xsk.c, line 454 net/xdp/xsk.c, line 527 net/xdp/xsk.c, line 617 net/xdp/xsk.c, line 710 net/xdp/xsk.c, line 761 net/xdp/xsk.c, line 785 net/xdp/xsk.c, line 811 net/xdp/xsk.c, line 825 net/xdp/xsk_diag.c, line 17 net/xdp/xsk_diag.c, line 35 net/xdp/xsk_diag.c, line 47 net/xdp/xsk_diag.c, line 84