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authorMartin KaFai Lau <kafai@fb.com>2021-07-01 23:05:54 +0300
committerAndrii Nakryiko <andrii@kernel.org>2021-07-24 02:44:41 +0300
commit62001372c2b6cdf2346afb2cf94ed3d950eee64c (patch)
treeef12a6c8652a2000e09ad50d748d811cef758475 /include/net/tcp.h
parentad2d61376a0517f19f49fc23de9e12d2b06484fc (diff)
downloadlinux-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.h1
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;
};