bpf: Clean up individual BTF_ID code

Use BTF_ID_LIST_SINGLE(a, b, c) instead of
BTF_ID_LIST(a)
BTF_ID(b, c)

Signed-off-by: Feng Yang <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Alexei Starovoitov <[e-mail]>

kernel/bpf/btf.c

···
 	return kctx_type_id;
 }
 
-BTF_ID_LIST(bpf_ctx_convert_btf_id)
-BTF_ID(struct, bpf_ctx_convert)
+BTF_ID_LIST_SINGLE(bpf_ctx_convert_btf_id, struct, bpf_ctx_convert)
 
 static struct btf *btf_parse_base(struct btf_verifier_env *env, const char *name,
 				  void *data, unsigned int data_size)

kernel/bpf/link_iter.c

···
 	.show	= bpf_link_seq_show,
 };
 
-BTF_ID_LIST(btf_bpf_link_id)
-BTF_ID(struct, bpf_link)
+BTF_ID_LIST_SINGLE(btf_bpf_link_id, struct, bpf_link)
 
 static const struct bpf_iter_seq_info bpf_link_seq_info = {
 	.seq_ops		= &bpf_link_seq_ops,

kernel/bpf/prog_iter.c

···
 	.show	= bpf_prog_seq_show,
 };
 
-BTF_ID_LIST(btf_bpf_prog_id)
-BTF_ID(struct, bpf_prog)
+BTF_ID_LIST_SINGLE(btf_bpf_prog_id, struct, bpf_prog)
 
 static const struct bpf_iter_seq_info bpf_prog_seq_info = {
 	.seq_ops		= &bpf_prog_seq_ops,

kernel/kallsyms.c

···
 	.seq_info		= &ksym_iter_seq_info,
 };
 
-BTF_ID_LIST(btf_ksym_iter_id)
-BTF_ID(struct, kallsym_iter)
+BTF_ID_LIST_SINGLE(btf_ksym_iter_id, struct, kallsym_iter)
 
 static int __init bpf_ksym_iter_register(void)
 {

kernel/trace/bpf_trace.c

···
 	return (unsigned long) task_pt_regs(task);
 }
 
-BTF_ID_LIST(bpf_task_pt_regs_ids)
-BTF_ID(struct, pt_regs)
+BTF_ID_LIST_SINGLE(bpf_task_pt_regs_ids, struct, pt_regs)
 
 const struct bpf_func_proto bpf_task_pt_regs_proto = {
 	.func		= bpf_task_pt_regs,

net/ipv6/route.c

···
 #if defined(CONFIG_BPF_SYSCALL) && defined(CONFIG_PROC_FS)
 DEFINE_BPF_ITER_FUNC(ipv6_route, struct bpf_iter_meta *meta, struct fib6_info *rt)
 
-BTF_ID_LIST(btf_fib6_info_id)
-BTF_ID(struct, fib6_info)
+BTF_ID_LIST_SINGLE(btf_fib6_info_id, struct, fib6_info)
 
 static const struct bpf_iter_seq_info ipv6_route_seq_info = {
 	.seq_ops		= &ipv6_route_seq_ops,

net/netlink/af_netlink.c

···
 };
 
 #if defined(CONFIG_BPF_SYSCALL) && defined(CONFIG_PROC_FS)
-BTF_ID_LIST(btf_netlink_sock_id)
-BTF_ID(struct, netlink_sock)
+BTF_ID_LIST_SINGLE(btf_netlink_sock_id, struct, netlink_sock)
 
 static const struct bpf_iter_seq_info netlink_seq_info = {
 	.seq_ops		= &netlink_seq_ops,

net/sched/bpf_qdisc.c

···
 	return 0;
 }
 
-BTF_ID_LIST(bpf_qdisc_init_prologue_ids)
-BTF_ID(func, bpf_qdisc_init_prologue)
+BTF_ID_LIST_SINGLE(bpf_qdisc_init_prologue_ids, func, bpf_qdisc_init_prologue)
 
 static int bpf_qdisc_gen_prologue(struct bpf_insn *insn_buf, bool direct_write,
 				  const struct bpf_prog *prog)
···
 	return insn - insn_buf;
 }
 
-BTF_ID_LIST(bpf_qdisc_reset_destroy_epilogue_ids)
-BTF_ID(func, bpf_qdisc_reset_destroy_epilogue)
+BTF_ID_LIST_SINGLE(bpf_qdisc_reset_destroy_epilogue_ids, func, bpf_qdisc_reset_destroy_epilogue)
 
 static int bpf_qdisc_gen_epilogue(struct bpf_insn *insn_buf, const struct bpf_prog *prog,
 				  s16 ctx_stack_off)
···
 	.owner = THIS_MODULE,
 };
 
-BTF_ID_LIST(bpf_sk_buff_dtor_ids)
-BTF_ID(func, bpf_kfree_skb)
+BTF_ID_LIST_SINGLE(bpf_sk_buff_dtor_ids, func, bpf_kfree_skb)
 
 static int __init bpf_qdisc_kfunc_init(void)
 {