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samples/bpf: correct comment in sock_example.c

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The program run against loopback interace "lo", not "eth0".
Correct the comment.

Signed-off-by: Wang Sheng-Hui <shhuiw@foxmail.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Wang Sheng-Hui 2018-04-17 10:25:20 +08:00 committed by Daniel Borkmann
parent 0934dfa6d3
commit 97c33610ac
1 changed files with 2 additions and 2 deletions
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4
samples/bpf/sock_example.c
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@ -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>