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| author | Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> | 2016-04-08 16:41:27 -0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-04-13 23:04:44 -0400 |
| commit | 250eb1f8815303f71c94a5680f8e4f2dcfa25cf5 (patch) | |
| tree | 191740a5260e9b7f554b80f0116f1f354af6d776 | |
| parent | ea019649c37b8aa0d1ac5727d122b2e8ed74f536 (diff) | |
| download | lwn-250eb1f8815303f71c94a5680f8e4f2dcfa25cf5.tar.gz lwn-250eb1f8815303f71c94a5680f8e4f2dcfa25cf5.zip | |
sctp: compress bit-wide flags to a bitfield on sctp_sock
It wastes space and gets worse as we add new flags, so convert bit-wide
flags to a bitfield.
Currently it already saves 4 bytes in sctp_sock, which are left as holes
in it for now. The whole struct needs packing, which should be done in
another patch.
Note that do_auto_asconf cannot be merged, as explained in the comment
before it.
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/sctp/structs.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 6df1ce7a411c..1a6a626904bb 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -210,14 +210,14 @@ struct sctp_sock { int user_frag; __u32 autoclose; - __u8 nodelay; - __u8 disable_fragments; - __u8 v4mapped; - __u8 frag_interleave; __u32 adaptation_ind; __u32 pd_point; - __u8 recvrcvinfo; - __u8 recvnxtinfo; + __u16 nodelay:1, + disable_fragments:1, + v4mapped:1, + frag_interleave:1, + recvrcvinfo:1, + recvnxtinfo:1; atomic_t pd_mode; /* Receive to here while partial delivery is in effect. */ |