linux-kernel - [PATCH bpf-next] bpf: make btf_check_func_type

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Message-ID: <20200210011441.147102-1-yaohongbo@huawei.com>
Date:   Mon, 10 Feb 2020 09:14:41 +0800
From:   Hongbo Yao <yaohongbo@...wei.com>
To:     <ast@...nel.org>, <daniel@...earbox.net>
CC:     <yaohongbo@...wei.com>, <chenzhou10@...wei.com>, <kafai@...com>,
        <songliubraving@...com>, <yhs@...com>, <andriin@...com>,
        <netdev@...r.kernel.org>, <bpf@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <clang-built-linux@...glegroups.com>
Subject: [PATCH bpf-next] bpf: make btf_check_func_type_match() static

Fix sparse warning:
kernel/bpf/btf.c:4131:5: warning: symbol 'btf_check_func_type_match' was
not declared. Should it be static?

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Hongbo Yao <yaohongbo@...wei.com>
---
 kernel/bpf/btf.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c
index 8c9d8f266bef..f24868a4176a 100644
--- a/kernel/bpf/btf.c
+++ b/kernel/bpf/btf.c
@@ -4144,9 +4144,9 @@ int btf_distill_func_proto(struct bpf_verifier_log *log,
  * EFAULT - verifier bug
  * 0 - 99% match. The last 1% is validated by the verifier.
  */
-int btf_check_func_type_match(struct bpf_verifier_log *log,
-			      struct btf *btf1, const struct btf_type *t1,
-			      struct btf *btf2, const struct btf_type *t2)
+static int btf_check_func_type_match(struct bpf_verifier_log *log,
+				     struct btf *btf1, const struct btf_type *t1,
+				     struct btf *btf2, const struct btf_type *t2)
 {
 	const struct btf_param *args1, *args2;
 	const char *fn1, *fn2, *s1, *s2;
-- 
2.20.1