9159 			  struct bpf_prog *old_prog, u32 flags)  in dev_xdp_attach()  argument
9172 	if (link && (new_prog || old_prog))  in dev_xdp_attach()
9191 	if (old_prog && !(flags & XDP_FLAGS_REPLACE)) {  in dev_xdp_attach()
9217 	if ((flags & XDP_FLAGS_REPLACE) && cur_prog != old_prog) {  in dev_xdp_attach()
9362 			       struct bpf_prog *old_prog)  in bpf_xdp_link_update()  argument
9377 	if (old_prog && link->prog != old_prog) {  in bpf_xdp_link_update()
9381 	old_prog = link->prog;  in bpf_xdp_link_update()
9382 	if (old_prog->type != new_prog->type ||  in bpf_xdp_link_update()
9383 	    old_prog->expected_attach_type != new_prog->expected_attach_type) {  in bpf_xdp_link_update()
9388 	if (old_prog == new_prog) {  in bpf_xdp_link_update()
9401 	old_prog = xchg(&link->prog, new_prog);  in bpf_xdp_link_update()
9402 	bpf_prog_put(old_prog);  in bpf_xdp_link_update()
9485 	struct bpf_prog *new_prog = NULL, *old_prog = NULL;  in dev_change_xdp_fd()  local
9498 		old_prog = bpf_prog_get_type_dev(expected_fd, BPF_PROG_TYPE_XDP,  in dev_change_xdp_fd()
9500 		if (IS_ERR(old_prog)) {  in dev_change_xdp_fd()
9501 			err = PTR_ERR(old_prog);  in dev_change_xdp_fd()
9502 			old_prog = NULL;  in dev_change_xdp_fd()
9507 	err = dev_xdp_attach(dev, extack, NULL, new_prog, old_prog, flags);  in dev_change_xdp_fd()
9512 	if (old_prog)  in dev_change_xdp_fd()
9513 		bpf_prog_put(old_prog);  in dev_change_xdp_fd()