diff options
| author |   Andrii Nakryiko <andrii@kernel.org> | 2021-03-13 13:09:18 -0800 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2021-03-16 12:26:49 -0700 |
| commit | 4bbb3583687051ef99966ddaeb1730441b777d40 (patch) | |
| tree | ee9896e092716aa1b7ea36756f4417102ecc3d12 /tools/bpf | |
| parent | libbpf: Add explicit padding to bpf_xdp_set_link_opts (diff) | |
| download | linux-dev-4bbb3583687051ef99966ddaeb1730441b777d40.tar.xz linux-dev-4bbb3583687051ef99966ddaeb1730441b777d40.zip | |
bpftool: Fix maybe-uninitialized warnings
Somehow when bpftool is compiled in -Og mode, compiler produces new warnings
about possibly uninitialized variables. Fix all the reported problems.
Fixes: 2119f2189df1 ("bpftool: add C output format option to btf dump subcommand")
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20210313210920.1959628-3-andrii@kernel.org
Diffstat (limited to 'tools/bpf')
| -rw-r--r-- | tools/bpf/bpftool/btf.c | 3 | ||||
| -rw-r--r-- | tools/bpf/bpftool/main.c | 3 | ||||
| -rw-r--r-- | tools/bpf/bpftool/map.c | 2 |
3 files changed, 5 insertions, 3 deletions
diff --git a/tools/bpf/bpftool/btf.c b/tools/bpf/bpftool/btf.c index 985610c3f193..62953bbf68b4 100644 --- a/tools/bpf/bpftool/btf.c +++ b/tools/bpf/bpftool/btf.c @@ -546,6 +546,7 @@ static int do_dump(int argc, char **argv) NEXT_ARG(); if (argc < 1) { p_err("expecting value for 'format' option\n"); + err = -EINVAL; goto done; } if (strcmp(*argv, "c") == 0) { @@ -555,11 +556,13 @@ static int do_dump(int argc, char **argv) } else { p_err("unrecognized format specifier: '%s', possible values: raw, c", *argv); + err = -EINVAL; goto done; } NEXT_ARG(); } else { p_err("unrecognized option: '%s'", *argv); + err = -EINVAL; goto done; } } diff --git a/tools/bpf/bpftool/main.c b/tools/bpf/bpftool/main.c index b86f450e6fce..d9afb730136a 100644 --- a/tools/bpf/bpftool/main.c +++ b/tools/bpf/bpftool/main.c @@ -276,7 +276,7 @@ static int do_batch(int argc, char **argv) int n_argc; FILE *fp; char *cp; - int err; + int err = 0; int i; if (argc < 2) { @@ -370,7 +370,6 @@ static int do_batch(int argc, char **argv) } else { if (!json_output) printf("processed %d commands\n", lines); - err = 0; } err_close: if (fp != stdin) diff --git a/tools/bpf/bpftool/map.c b/tools/bpf/bpftool/map.c index b400364ee054..09ae0381205b 100644 --- a/tools/bpf/bpftool/map.c +++ b/tools/bpf/bpftool/map.c @@ -100,7 +100,7 @@ static int do_dump_btf(const struct btf_dumper *d, void *value) { __u32 value_id; - int ret; + int ret = 0; /* start of key-value pair */ jsonw_start_object(d->jw); |