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From: Jiayuan Chen <jiayuan.chen@linux.dev>
To: bpf@vger.kernel.org, qmo@kernel.org
Cc: daniel@iogearbox.net, linux-kernel@vger.kernel.org,
	ast@kernel.org, davem@davemloft.net, kuba@kernel.org,
	hawk@kernel.org, john.fastabend@gmail.com, andrii@kernel.org,
	martin.lau@linux.dev, eddyz87@gmail.com, song@kernel.org,
	yonghong.song@linux.dev, kpsingh@kernel.org, sdf@fomichev.me,
	haoluo@google.com, jolsa@kernel.org, mrpre@163.com,
	Jiayuan Chen <jiayuan.chen@linux.dev>
Subject: [PATCH bpf-next v1 0/2] bpftool: Using the right format specifiers
Date: Mon, 10 Mar 2025 22:20:35 +0800	[thread overview]
Message-ID: <20250310142037.45932-1-jiayuan.chen@linux.dev> (raw)

This patch adds the -Wformat-signedness compiler flag to detect and
prevent format string errors, where signed or unsigned types are
mismatched with format specifiers. Additionally, it fixes some format
string errors that were not fully addressed by the previous patch [1].


[1] https://lore.kernel.org/bpf/20250207123706.727928-1-mrpre@163.com/T/#u

Jiayuan Chen (2):
  bpftool: Add -Wformat-signedness flag to detect format errors
  bpftool: Using the right format specifiers

 kernel/bpf/disasm.c                |  4 ++--
 tools/bpf/bpftool/Makefile         |  2 +-
 tools/bpf/bpftool/btf.c            | 14 +++++++-------
 tools/bpf/bpftool/btf_dumper.c     |  2 +-
 tools/bpf/bpftool/cgroup.c         |  2 +-
 tools/bpf/bpftool/common.c         |  4 ++--
 tools/bpf/bpftool/jit_disasm.c     |  3 ++-
 tools/bpf/bpftool/map_perf_ring.c  |  6 +++---
 tools/bpf/bpftool/net.c            |  4 ++--
 tools/bpf/bpftool/netlink_dumper.c |  5 ++---
 tools/bpf/bpftool/prog.c           | 12 ++++++------
 tools/bpf/bpftool/tracelog.c       |  2 +-
 tools/bpf/bpftool/xlated_dumper.c  |  6 +++---
 13 files changed, 33 insertions(+), 33 deletions(-)

-- 
2.47.1


             reply	other threads:[~2025-03-10 14:20 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-03-10 14:20 Jiayuan Chen [this message]
2025-03-10 14:20 ` [PATCH bpf-next v1 1/2] bpftool: Add -Wformat-signedness flag to detect format errors Jiayuan Chen
2025-03-10 15:49   ` Quentin Monnet
2025-03-11  2:41     ` Jiayuan Chen
2025-03-10 14:20 ` [PATCH bpf-next v1 2/2] bpftool: Using the right format specifiers Jiayuan Chen
2025-03-10 15:49   ` Quentin Monnet

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