samples/bpf: correct comment in sock_example.c
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>
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@ -9,10 +9,10 @@
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* if (value)
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* (*(u64*)value) += 1;
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*
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* - attaches this program to eth0 raw socket
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* - attaches this program to loopback interface "lo" raw socket
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*
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* - every second user space reads map[tcp], map[udp], map[icmp] to see
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* how many packets of given protocol were seen on eth0
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* how many packets of given protocol were seen on "lo"
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*/
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#include <stdio.h>
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#include <unistd.h>
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