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authorDaniel T. Lee <danieltimlee@gmail.com>2022-12-18 09:14:52 +0300
committerMartin KaFai Lau <martin.lau@kernel.org>2022-12-20 01:21:05 +0300
commit71135b77aac75769f6dae81ac4725405f1015d22 (patch)
treea6635a80c7e1ac3eb5bba64a534532084650ed6a /samples
parent13aa2a92840dd49a64362ddd1e4d16084a4b9e0f (diff)
downloadlinux-71135b77aac75769f6dae81ac4725405f1015d22.tar.xz
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.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/samples/bpf/tracex4_user.c b/samples/bpf/tracex4_user.c
index 227b05a0bc88..dee8f0a091ba 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);
}