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samples/bpf: Fix application of sizeof to pointer

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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 <[email protected]>
Signed-off-by: David Yang <[email protected]>
Signed-off-by: Andrii Nakryiko <[email protected]>
Link: https://lore.kernel.org/bpf/[email protected]
This commit is contained in:
David Yang authored and Andrii Nakryiko committed 2021-10-20 10:55:33 -07:00
1 parent efc36d6c64
commit b599015f04
1 file changed
+2 -4
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samples/bpf/xdp_redirect_cpu_user.c
+2 -4
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@@ -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) {