1dcf95dee0
backport-libbpf-Add-NULL-checks-to-bpf_object__prev_map,next_.patch backport-libbpf-Apply-map_set_def_max_entries-for-inner_maps-.patch backport-libbpf-Fix-uninitialized-warning-in-btf_dump_dump_ty.patch Signed-off-by: zhang-mingyi66 <zhangmingyi5@huawei.com>
43 lines
1.5 KiB
Diff
43 lines
1.5 KiB
Diff
From c975797ebecb07934d1399e1595db8e0d55bec04 Mon Sep 17 00:00:00 2001
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From: David Michael <fedora.dm0@gmail.com>
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Date: Sun, 13 Nov 2022 15:52:17 -0500
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Subject: [PATCH] libbpf: Fix uninitialized warning in btf_dump_dump_type_data
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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GCC 11.3.0 fails to compile btf_dump.c due to the following error,
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which seems to originate in btf_dump_struct_data where the returned
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value would be uninitialized if btf_vlen returns zero.
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btf_dump.c: In function ‘btf_dump_dump_type_data’:
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btf_dump.c:2363:12: error: ‘err’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
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2363 | if (err < 0)
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| ^
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Fixes: 920d16af9b42 ("libbpf: BTF dumper support for typed data")
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Signed-off-by: David Michael <fedora.dm0@gmail.com>
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Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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Acked-by: Stanislav Fomichev <sdf@google.com>
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Acked-by: Alan Maguire <alan.maguire@oracle.com>
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Link: https://lore.kernel.org/bpf/87zgcu60hq.fsf@gmail.com
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---
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src/btf_dump.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/src/btf_dump.c b/src/btf_dump.c
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index 12f7039e0..e9f849d82 100644
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--- a/src/btf_dump.c
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+++ b/src/btf_dump.c
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@@ -1989,7 +1989,7 @@ static int btf_dump_struct_data(struct btf_dump *d,
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{
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const struct btf_member *m = btf_members(t);
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__u16 n = btf_vlen(t);
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- int i, err;
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+ int i, err = 0;
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/* note that we increment depth before calling btf_dump_print() below;
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* this is intentional. btf_dump_data_newline() will not print a
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--
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2.33.0
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