linux-kernel - [PATCH] bpftool: Cast variable `var` to long long

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Message-Id: <20241112073701.283362-1-luoyifan@cmss.chinamobile.com>
Date: Tue, 12 Nov 2024 15:37:01 +0800
From: Luo Yifan <luoyifan@...s.chinamobile.com>
To: andrii.nakryiko@...il.com,
	qmo@...nel.org
Cc: andrii@...nel.org,
	ast@...nel.org,
	bpf@...r.kernel.org,
	daniel@...earbox.net,
	eddyz87@...il.com,
	haoluo@...gle.com,
	john.fastabend@...il.com,
	jolsa@...nel.org,
	kpsingh@...nel.org,
	linux-kernel@...r.kernel.org,
	luoyifan@...s.chinamobile.com,
	martin.lau@...ux.dev,
	sdf@...ichev.me,
	song@...nel.org,
	yonghong.song@...ux.dev
Subject: [PATCH] bpftool: Cast variable `var` to long long

When the SIGNED condition is met, the variable `var` should be cast to
`long long` instead of `unsigned long long`.

Signed-off-by: Luo Yifan <luoyifan@...s.chinamobile.com>
---
 tools/bpf/bpftool/btf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/bpf/bpftool/btf.c b/tools/bpf/bpftool/btf.c
index 547c1ccdc..d005e4fd6 100644
--- a/tools/bpf/bpftool/btf.c
+++ b/tools/bpf/bpftool/btf.c
@@ -289,7 +289,7 @@ static int dump_btf_type(const struct btf *btf, __u32 id,
 			} else {
 				if (btf_kflag(t))
 					printf("\n\t'%s' val=%lldLL", name,
-					       (unsigned long long)val);
+					       (long long)val);
 				else
 					printf("\n\t'%s' val=%lluULL", name,
 					       (unsigned long long)val);
-- 
2.27.0