From 250eb1f8815303f71c94a5680f8e4f2dcfa25cf5 Mon Sep 17 00:00:00 2001 From: Marcelo Ricardo Leitner Date: Fri, 8 Apr 2016 16:41:27 -0300 Subject: [PATCH] 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 Acked-by: Neil Horman Signed-off-by: David S. Miller --- include/net/sctp/structs.h | 12 ++++++------ 1 file 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. */ -- 2.20.1