linux-kernel - [PATCH bpf-next v1 0/2] bpftool: Using the right format specifiers

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Message-ID: <20250310142037.45932-1-jiayuan.chen@linux.dev>
Date: Mon, 10 Mar 2025 22:20:35 +0800
From: Jiayuan Chen <jiayuan.chen@...ux.dev>
To: bpf@...r.kernel.org,
	qmo@...nel.org
Cc: daniel@...earbox.net,
	linux-kernel@...r.kernel.org,
	ast@...nel.org,
	davem@...emloft.net,
	kuba@...nel.org,
	hawk@...nel.org,
	john.fastabend@...il.com,
	andrii@...nel.org,
	martin.lau@...ux.dev,
	eddyz87@...il.com,
	song@...nel.org,
	yonghong.song@...ux.dev,
	kpsingh@...nel.org,
	sdf@...ichev.me,
	haoluo@...gle.com,
	jolsa@...nel.org,
	mrpre@....com,
	Jiayuan Chen <jiayuan.chen@...ux.dev>
Subject: [PATCH bpf-next v1 0/2] bpftool: Using the right format specifiers

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