linux-kernel - [PATCH] bpf: Replace 8 seq_puts() calls by seq

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Message-ID: <e26b7df9-cd63-491f-85e8-8cabe60a85e5@web.de>
Date: Sun, 14 Jul 2024 16:30:38 +0200
From: Markus Elfring <Markus.Elfring@....de>
To: bpf@...r.kernel.org, kernel-janitors@...r.kernel.org,
 Alexei Starovoitov <ast@...nel.org>, Andrii Nakryiko <andrii@...nel.org>,
 Daniel Borkmann <daniel@...earbox.net>, Eduard Zingerman
 <eddyz87@...il.com>, Hao Luo <haoluo@...gle.com>,
 Jiri Olsa <jolsa@...nel.org>, John Fastabend <john.fastabend@...il.com>,
 KP Singh <kpsingh@...nel.org>, Martin KaFai Lau <martin.lau@...ux.dev>,
 Song Liu <song@...nel.org>, Stanislav Fomichev <sdf@...ichev.me>,
 Yonghong Song <yonghong.song@...ux.dev>
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH] bpf: Replace 8 seq_puts() calls by seq_putc() calls

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sun, 14 Jul 2024 16:15:34 +0200

Single line breaks should occasionally be put into a sequence.
Thus use the corresponding function “seq_putc”.

This issue was transformed by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 kernel/bpf/arraymap.c       | 6 +++---
 kernel/bpf/bpf_struct_ops.c | 2 +-
 kernel/bpf/hashtab.c        | 4 ++--
 kernel/bpf/local_storage.c  | 4 ++--
 4 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/kernel/bpf/arraymap.c b/kernel/bpf/arraymap.c
index feabc0193852..188e3c2effb2 100644
--- a/kernel/bpf/arraymap.c
+++ b/kernel/bpf/arraymap.c
@@ -494,7 +494,7 @@ static void array_map_seq_show_elem(struct bpf_map *map, void *key,
 	if (map->btf_key_type_id)
 		seq_printf(m, "%u: ", *(u32 *)key);
 	btf_type_seq_show(map->btf, map->btf_value_type_id, value, m);
-	seq_puts(m, "\n");
+	seq_putc(m, '\n');

 	rcu_read_unlock();
 }
@@ -515,7 +515,7 @@ static void percpu_array_map_seq_show_elem(struct bpf_map *map, void *key,
 		seq_printf(m, "\tcpu%d: ", cpu);
 		btf_type_seq_show(map->btf, map->btf_value_type_id,
 				  per_cpu_ptr(pptr, cpu), m);
-		seq_puts(m, "\n");
+		seq_putc(m, '\n');
 	}
 	seq_puts(m, "}\n");

@@ -993,7 +993,7 @@ static void prog_array_map_seq_show_elem(struct bpf_map *map, void *key,
 			prog_id = prog_fd_array_sys_lookup_elem(ptr);
 			btf_type_seq_show(map->btf, map->btf_value_type_id,
 					  &prog_id, m);
-			seq_puts(m, "\n");
+			seq_putc(m, '\n');
 		}
 	}

diff --git a/kernel/bpf/bpf_struct_ops.c b/kernel/bpf/bpf_struct_ops.c
index 0d515ec57aa5..bb3eabc0dc76 100644
--- a/kernel/bpf/bpf_struct_ops.c
+++ b/kernel/bpf/bpf_struct_ops.c
@@ -837,7 +837,7 @@ static void bpf_struct_ops_map_seq_show_elem(struct bpf_map *map, void *key,
 		btf_type_seq_show(st_map->btf,
 				  map->btf_vmlinux_value_type_id,
 				  value, m);
-		seq_puts(m, "\n");
+		seq_putc(m, '\n');
 	}

 	kfree(value);
diff --git a/kernel/bpf/hashtab.c b/kernel/bpf/hashtab.c
index 06115f8728e8..be1f64c20125 100644
--- a/kernel/bpf/hashtab.c
+++ b/kernel/bpf/hashtab.c
@@ -1586,7 +1586,7 @@ static void htab_map_seq_show_elem(struct bpf_map *map, void *key,
 	btf_type_seq_show(map->btf, map->btf_key_type_id, key, m);
 	seq_puts(m, ": ");
 	btf_type_seq_show(map->btf, map->btf_value_type_id, value, m);
-	seq_puts(m, "\n");
+	seq_putc(m, '\n');

 	rcu_read_unlock();
 }
@@ -2450,7 +2450,7 @@ static void htab_percpu_map_seq_show_elem(struct bpf_map *map, void *key,
 		seq_printf(m, "\tcpu%d: ", cpu);
 		btf_type_seq_show(map->btf, map->btf_value_type_id,
 				  per_cpu_ptr(pptr, cpu), m);
-		seq_puts(m, "\n");
+		seq_putc(m, '\n');
 	}
 	seq_puts(m, "}\n");

diff --git a/kernel/bpf/local_storage.c b/kernel/bpf/local_storage.c
index a04f505aefe9..3969eb0382af 100644
--- a/kernel/bpf/local_storage.c
+++ b/kernel/bpf/local_storage.c
@@ -431,7 +431,7 @@ static void cgroup_storage_seq_show_elem(struct bpf_map *map, void *key,
 		seq_puts(m, ": ");
 		btf_type_seq_show(map->btf, map->btf_value_type_id,
 				  &READ_ONCE(storage->buf)->data[0], m);
-		seq_puts(m, "\n");
+		seq_putc(m, '\n');
 	} else {
 		seq_puts(m, ": {\n");
 		for_each_possible_cpu(cpu) {
@@ -439,7 +439,7 @@ static void cgroup_storage_seq_show_elem(struct bpf_map *map, void *key,
 			btf_type_seq_show(map->btf, map->btf_value_type_id,
 					  per_cpu_ptr(storage->percpu_buf, cpu),
 					  m);
-			seq_puts(m, "\n");
+			seq_putc(m, '\n');
 		}
 		seq_puts(m, "}\n");
 	}
--
2.45.2