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| author | Daniel T. Lee <danieltimlee@gmail.com> | 2022-12-18 15:14:52 +0900 |
|---|---|---|
| committer | Martin KaFai Lau <martin.lau@kernel.org> | 2022-12-19 14:21:05 -0800 |
| commit | 71135b77aac75769f6dae81ac4725405f1015d22 (patch) | |
| tree | a6635a80c7e1ac3eb5bba64a534532084650ed6a /samples | |
| parent | 13aa2a92840dd49a64362ddd1e4d16084a4b9e0f (diff) | |
| download | linux-71135b77aac75769f6dae81ac4725405f1015d22.tar.gz | |
samples/bpf: replace meaningless counter with tracex4
Currently, compiling samples/bpf with LLVM warns about the unused but
set variable with tracex4_user.
./samples/bpf/tracex4_user.c:54:14:
warning: variable 'i' set but not used [-Wunused-but-set-variable]
int map_fd, i, j = 0;
^
1 warning generated.
This commit resolve this compiler warning by replacing the meaningless
counter.
Signed-off-by: Daniel T. Lee <danieltimlee@gmail.com>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20221218061453.6287-3-danieltimlee@gmail.com
Signed-off-by: Martin KaFai Lau <martin.lau@kernel.org>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/bpf/tracex4_user.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/samples/bpf/tracex4_user.c b/samples/bpf/tracex4_user.c index 227b05a0bc8833..dee8f0a091ba6a 100644 --- a/samples/bpf/tracex4_user.c +++ b/samples/bpf/tracex4_user.c @@ -51,7 +51,7 @@ int main(int ac, char **argv) struct bpf_program *prog; struct bpf_object *obj; char filename[256]; - int map_fd, i, j = 0; + int map_fd, j = 0; snprintf(filename, sizeof(filename), "%s_kern.o", argv[0]); obj = bpf_object__open_file(filename, NULL); @@ -82,7 +82,7 @@ int main(int ac, char **argv) j++; } - for (i = 0; ; i++) { + while (1) { print_old_objects(map_fd); sleep(1); } |