samples/bpf: correct comment in sock_example.c

shhuiw · borkmann · commit 97c33610acc5 · 2018-04-18T14:45:26.000+02:00
The program run against loopback interace "lo", not "eth0".
Correct the comment.

Signed-off-by: Wang Sheng-Hui &lt;shhuiw@foxmail.com&gt;
Acked-by: Alexei Starovoitov &lt;ast@kernel.org&gt;
Signed-off-by: Daniel Borkmann &lt;daniel@iogearbox.net&gt;
diff --git a/samples/bpf/sock_example.c b/samples/bpf/sock_example.c
@@ -9,10 +9,10 @@
  *   if (value)
  *        (*(u64*)value) += 1;
  *
- * - attaches this program to eth0 raw socket
+ * - attaches this program to loopback interface "lo" raw socket
  *
  * - every second user space reads map[tcp], map[udp], map[icmp] to see
- *   how many packets of given protocol were seen on eth0
+ *   how many packets of given protocol were seen on "lo"
  */
 #include <stdio.h>
 #include <unistd.h>

Original file line number	Diff line number	Diff line change
`@@ -9,10 +9,10 @@`
`9`	`9`	`* if (value)`
`10`	`10`	`* ((u64)value) += 1;`
`11`	`11`	`*`
`12`		`- * - attaches this program to eth0 raw socket`
	`12`	`+ * - attaches this program to loopback interface "lo" raw socket`
`13`	`13`	`*`
`14`	`14`	`* - every second user space reads map[tcp], map[udp], map[icmp] to see`
`15`		`- * how many packets of given protocol were seen on eth0`
	`15`	`+ * how many packets of given protocol were seen on "lo"`
`16`	`16`	`*/`
`17`	`17`	`#include <stdio.h>`
`18`	`18`	`#include <unistd.h>`