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bpf: Clean up sockmap related Kconfigs

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As suggested by John, clean up sockmap related Kconfigs:

Reduce the scope of CONFIG_BPF_STREAM_PARSER down to TCP stream
parser, to reflect its name.

Make the rest sockmap code simply depend on CONFIG_BPF_SYSCALL
and CONFIG_INET, the latter is still needed at this point because
of TCP/UDP proto update. And leave CONFIG_NET_SOCK_MSG untouched,
as it is used by non-sockmap cases.

Signed-off-by: Cong Wang <cong.wang@bytedance.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Lorenz Bauer <lmb@cloudflare.com>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Acked-by: Jakub Sitnicki <jakub@cloudflare.com>
Link: https://lore.kernel.org/bpf/20210223184934.6054-2-xiyou.wangcong@gmail.com
This commit is contained in:
Cong Wang
2021-02-23 10:49:26 -08:00
committed by Alexei Starovoitov
parent a83586a7dd
commit 887596095e
12 changed files with 133 additions and 103 deletions
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6
net/Kconfig
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@@ -317,13 +317,9 @@ config BPF_STREAM_PARSER
select STREAM_PARSER
select NET_SOCK_MSG
help
Enabling this allows a stream parser to be used with
Enabling this allows a TCP stream parser to be used with
BPF_MAP_TYPE_SOCKMAP.
BPF_MAP_TYPE_SOCKMAP provides a map type to use with network sockets.
It can be used to enforce socket policy, implement socket redirects,
etc.
config NET_FLOW_LIMIT
bool
depends on RPS