From: Florian Fainelli <f.fainelli@xxxxxxxxx>
[ Upstream commit 3045f42a64324d339125a8a1a1763bb9e1e08300 ]
GCC-11 warns about the possibly unitialized err variable in
probe_map_create:
libbpf_probes.c: In function 'probe_map_create':
libbpf_probes.c:361:38: error: 'err' may be used uninitialized in this function [-Werror=maybe-uninitialized]
361 | return fd < 0 && err == exp_err ? 1 : 0;
| ~~~~^~~~~~~~~~
Fixes: 878d8def0603 ("libbpf: Rework feature-probing APIs")
Signed-off-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx>
Acked-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Link: https://lore.kernel.org/bpf/20220801025109.1206633-1-f.fainelli@xxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
tools/lib/bpf/libbpf_probes.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/lib/bpf/libbpf_probes.c b/tools/lib/bpf/libbpf_probes.c
index 0b5398786bf3..6d495656f554 100644
--- a/tools/lib/bpf/libbpf_probes.c
+++ b/tools/lib/bpf/libbpf_probes.c
@@ -193,7 +193,7 @@ static int probe_map_create(enum bpf_map_type map_type)
LIBBPF_OPTS(bpf_map_create_opts, opts);
int key_size, value_size, max_entries;
__u32 btf_key_type_id = 0, btf_value_type_id = 0;
- int fd = -1, btf_fd = -1, fd_inner = -1, exp_err = 0, err;
+ int fd = -1, btf_fd = -1, fd_inner = -1, exp_err = 0, err = 0;
key_size = sizeof(__u32);
value_size = sizeof(__u32);
--
2.35.1
