[PATCH bpf-next] libbpf: fix false unused variable warning

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Some versions of GCC falsely detect that vi might not be initialized. That's
not true, but let's silence it with NULL initialization.

Signed-off-by: Andrii Nakryiko <andriin@xxxxxx>
---
 tools/lib/bpf/libbpf.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/lib/bpf/libbpf.c b/tools/lib/bpf/libbpf.c
index d86ff8214b96..977add1b73e2 100644
--- a/tools/lib/bpf/libbpf.c
+++ b/tools/lib/bpf/libbpf.c
@@ -5003,8 +5003,8 @@ static int bpf_object__collect_map_relos(struct bpf_object *obj,
 					 GElf_Shdr *shdr, Elf_Data *data)
 {
 	int i, j, nrels, new_sz, ptr_sz = sizeof(void *);
+	const struct btf_var_secinfo *vi = NULL;
 	const struct btf_type *sec, *var, *def;
-	const struct btf_var_secinfo *vi;
 	const struct btf_member *member;
 	struct bpf_map *map, *targ_map;
 	const char *name, *mname;
-- 
2.24.1





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