linux-kernel - [PATCH bpf-next] bpf: Clean up individual BTF

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Message-Id: <20250709082038.103249-1-yangfeng59949@163.com>
Date: Wed,  9 Jul 2025 16:20:38 +0800
From: Feng Yang <yangfeng59949@....com>
To: martin.lau@...ux.dev,
	ast@...nel.org,
	daniel@...earbox.net,
	andrii@...nel.org,
	eddyz87@...il.com,
	song@...nel.org,
	yonghong.song@...ux.dev,
	john.fastabend@...il.com,
	kpsingh@...nel.org,
	sdf@...ichev.me,
	haoluo@...gle.com,
	jolsa@...nel.org,
	mattbobrowski@...gle.com,
	rostedt@...dmis.org,
	mhiramat@...nel.org
Cc: bpf@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-trace-kernel@...r.kernel.org
Subject: [PATCH bpf-next] bpf: Clean up individual BTF_ID code

From: Feng Yang <yangfeng@...inos.cn>

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

Signed-off-by: Feng Yang <yangfeng@...inos.cn>
---
 kernel/bpf/btf.c         | 3 +--
 kernel/bpf/link_iter.c   | 3 +--
 kernel/bpf/prog_iter.c   | 3 +--
 kernel/trace/bpf_trace.c | 3 +--
 4 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 2dd13eea7b0e..0aff814cb53a 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -6200,8 +6200,7 @@ int get_kern_ctx_btf_id(struct bpf_verifier_log *log, enum bpf_prog_type prog_ty
 	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)
diff --git a/kernel/bpf/link_iter.c b/kernel/bpf/link_iter.c
index fec8005a121c..8158e9c1af7b 100644
--- a/kernel/bpf/link_iter.c
+++ b/kernel/bpf/link_iter.c
@@ -78,8 +78,7 @@ static const struct seq_operations bpf_link_seq_ops = {
 	.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,
diff --git a/kernel/bpf/prog_iter.c b/kernel/bpf/prog_iter.c
index 53a73c841c13..85d8fcb56fb7 100644
--- a/kernel/bpf/prog_iter.c
+++ b/kernel/bpf/prog_iter.c
@@ -78,8 +78,7 @@ static const struct seq_operations bpf_prog_seq_ops = {
 	.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,
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index e7f97a9a8bbd..c8162dc89dc3 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -781,8 +781,7 @@ BPF_CALL_1(bpf_task_pt_regs, struct task_struct *, task)
 	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,
-- 
2.43.0