diff options
| author | Martin KaFai Lau <kafai@fb.com> | 2021-07-01 23:05:54 +0300 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2021-07-24 02:44:41 +0300 |
| commit | 62001372c2b6cdf2346afb2cf94ed3d950eee64c (patch) | |
| tree | ef12a6c8652a2000e09ad50d748d811cef758475 /include/net/tcp.h | |
| parent | ad2d61376a0517f19f49fc23de9e12d2b06484fc (diff) | |
| download | linux-62001372c2b6cdf2346afb2cf94ed3d950eee64c.tar.xz | |
bpf: tcp: seq_file: Remove bpf_seq_afinfo from tcp_iter_state
A following patch will create a separate struct to store extra
bpf_iter state and it will embed the existing tcp_iter_state like this:
struct bpf_tcp_iter_state {
struct tcp_iter_state state;
/* More bpf_iter specific states here ... */
}
As a prep work, this patch removes the
"struct tcp_seq_afinfo *bpf_seq_afinfo" where its purpose is
to tell if it is iterating from bpf_iter instead of proc fs.
Currently, if "*bpf_seq_afinfo" is not NULL, it is iterating from
bpf_iter. The kernel should not filter by the addr family and
leave this filtering decision to the bpf prog.
Instead of adding a "*bpf_seq_afinfo" pointer, this patch uses the
"seq->op == &bpf_iter_tcp_seq_ops" test to tell if it is iterating
from the bpf iter.
The bpf_iter_(init|fini)_tcp() is left here to prepare for
the change of a following patch.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Kuniyuki Iwashima <kuniyu@amazon.co.jp>
Acked-by: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/bpf/20210701200554.1034982-1-kafai@fb.com
Diffstat (limited to 'include/net/tcp.h')
| -rw-r--r-- | include/net/tcp.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index 17df9b047ee4..ba3034123e1d 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1959,7 +1959,6 @@ struct tcp_iter_state { struct seq_net_private p; enum tcp_seq_states state; struct sock *syn_wait_sk; - struct tcp_seq_afinfo *bpf_seq_afinfo; int bucket, offset, sbucket, num; loff_t last_pos; }; |