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From: Andrii Nakryiko <andrii@kernel.org>
To: <bpf@vger.kernel.org>, <ast@kernel.org>, <daniel@iogearbox.net>
Cc: <andrii@kernel.org>, <kernel-team@fb.com>
Subject: [PATCH bpf-next] libbpf: fix non-C89 loop variable declaration in gen_loader.c
Date: Fri, 5 Nov 2021 12:10:55 -0700	[thread overview]
Message-ID: <20211105191055.3324874-1-andrii@kernel.org> (raw)

Fix the `int i` declaration inside the for statement. This is non-C89
compliant. See [0] for user report breaking BCC build.

  [0] https://github.com/libbpf/libbpf/issues/403

Fixes: 18f4fccbf314 ("libbpf: Update gen_loader to emit BTF_KIND_FUNC relocations")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
---
 tools/lib/bpf/gen_loader.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/lib/bpf/gen_loader.c b/tools/lib/bpf/gen_loader.c
index 502dea53a742..2e10776b6d85 100644
--- a/tools/lib/bpf/gen_loader.c
+++ b/tools/lib/bpf/gen_loader.c
@@ -584,8 +584,9 @@ void bpf_gen__record_extern(struct bpf_gen *gen, const char *name, bool is_weak,
 static struct ksym_desc *get_ksym_desc(struct bpf_gen *gen, struct ksym_relo_desc *relo)
 {
 	struct ksym_desc *kdesc;
+	int i;
 
-	for (int i = 0; i < gen->nr_ksyms; i++) {
+	for (i = 0; i < gen->nr_ksyms; i++) {
 		if (!strcmp(gen->ksyms[i].name, relo->name)) {
 			gen->ksyms[i].ref++;
 			return &gen->ksyms[i];
-- 
2.30.2


             reply	other threads:[~2021-11-05 19:11 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-05 19:10 Andrii Nakryiko [this message]
2021-11-05 20:40 ` [PATCH bpf-next] libbpf: fix non-C89 loop variable declaration in gen_loader.c Kumar Kartikeya Dwivedi
2021-11-05 21:49   ` Andrii Nakryiko
2021-11-05 22:04     ` Kumar Kartikeya Dwivedi
2021-11-05 22:20       ` Andrii Nakryiko
2021-11-05 22:26         ` Kumar Kartikeya Dwivedi
2021-11-06 16:37 ` Alexei Starovoitov
2021-11-06 19:56   ` Andrii Nakryiko
2021-11-06 23:18     ` Alexei Starovoitov

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