2323 			   struct bpf_prog *dst_prog)  in bpf_prog_load_check_attach()  argument
2329 		if (!attach_btf && !dst_prog)  in bpf_prog_load_check_attach()
2343 	if (attach_btf && (!btf_id || dst_prog))  in bpf_prog_load_check_attach()
2346 	if (dst_prog && prog_type != BPF_PROG_TYPE_TRACING &&  in bpf_prog_load_check_attach()
2472 	struct bpf_prog *prog, *dst_prog = NULL;  in bpf_prog_load()  local
2521 		dst_prog = bpf_prog_get(attr->attach_prog_fd);  in bpf_prog_load()
2522 		if (IS_ERR(dst_prog)) {  in bpf_prog_load()
2523 			dst_prog = NULL;  in bpf_prog_load()
2548 				       dst_prog)) {  in bpf_prog_load()
2549 		if (dst_prog)  in bpf_prog_load()
2550 			bpf_prog_put(dst_prog);  in bpf_prog_load()
2559 		if (dst_prog)  in bpf_prog_load()
2560 			bpf_prog_put(dst_prog);  in bpf_prog_load()
2569 	prog->aux->dst_prog = dst_prog;  in bpf_prog_load()
3100 		tgt_prog = prog->aux->dst_prog;  in bpf_tracing_prog_attach()
3121 	if (prog->aux->dst_prog &&  in bpf_tracing_prog_attach()
3124 		bpf_prog_put(prog->aux->dst_prog);  in bpf_tracing_prog_attach()
3129 	prog->aux->dst_prog = NULL;  in bpf_tracing_prog_attach()