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| author | David Yang <davidcomponentone@gmail.com> | 2021-10-12 19:16:49 +0800 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2021-10-20 10:55:33 -0700 |
| commit | b599015f044df53e93ad0a2957b615bc1a26bf73 (patch) | |
| tree | b92e5ce1f819c075ab3a0f4b84355649aba640bb /samples/bpf | |
| parent | efc36d6c642a753c2880d97b8e8c3c7cfaf64ad1 (diff) | |
| download | lwn-b599015f044df53e93ad0a2957b615bc1a26bf73.tar.gz lwn-b599015f044df53e93ad0a2957b615bc1a26bf73.zip | |
samples/bpf: Fix application of sizeof to pointer
The coccinelle check report:
"./samples/bpf/xdp_redirect_cpu_user.c:397:32-38:
ERROR: application of sizeof to pointer"
Using the "strlen" to fix it.
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: David Yang <davidcomponentone@gmail.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211012111649.983253-1-davidcomponentone@gmail.com
Diffstat (limited to 'samples/bpf')
| -rw-r--r-- | samples/bpf/xdp_redirect_cpu_user.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/samples/bpf/xdp_redirect_cpu_user.c b/samples/bpf/xdp_redirect_cpu_user.c index 6e25fba64c72..d84e6949007c 100644 --- a/samples/bpf/xdp_redirect_cpu_user.c +++ b/samples/bpf/xdp_redirect_cpu_user.c @@ -325,7 +325,6 @@ int main(int argc, char **argv) int add_cpu = -1; int ifindex = -1; int *cpu, i, opt; - char *ifname; __u32 qsize; int n_cpus; @@ -393,9 +392,8 @@ int main(int argc, char **argv) fprintf(stderr, "-d/--dev name too long\n"); goto end_cpu; } - ifname = (char *)&ifname_buf; - safe_strncpy(ifname, optarg, sizeof(ifname)); - ifindex = if_nametoindex(ifname); + safe_strncpy(ifname_buf, optarg, strlen(ifname_buf)); + ifindex = if_nametoindex(ifname_buf); if (!ifindex) ifindex = strtoul(optarg, NULL, 0); if (!ifindex) { |