Please find below the revised patch set, addressing earlier review.
Changes relative to revision 1

------------------------------

 * [1/5] streamlined field layout reducing the size per each entry;

 * [2/5] migration of function 'dccp_default_value' to a later in the set

         where it is first used.
Commit summary

--------------

This is the first set of the feature negotiation patches. These provide a

self-contained feature negotiation API for the DCCP protocol (RFC 4340-2).
The whole set is structured into 3 main blocks - (1) basis, (2) core,

(3) integration and cleanup. Within these blocks, this is the first,

self-contained, set and its purpose is to provide

 (a) the underlying datastructures

 (b) initialisation and cleanup routines for the new datastructures.
List of patches in this set:

----------------------------

Patch #1: Provides the basic datastructure for feature negotiation. It gets

          around the problem that feature-negotiation values have no uniform

	  type - they can be 48-bit numbers, single characters, 2-byte integers

	  or a list of unsigned chars.

Patch #2: Provides a lookup-table for the different negotiable features.

Patch #3: Adds list management for the list keeping the negotiation-options.

Patch #4: Initialisation routines (for request sockets and normal sockets).

Patch #5: Analogous to #4, this provides the cleanup routines.	  
Patch stats:

------------

 include/linux/dccp.h |   13 +-

 net/dccp/dccp.h      |    5

 net/dccp/feat.c      |  270 +++++++++++++++++++++++++++++++++++++++++++++++++++

 net/dccp/feat.h      |   62 +++++++++++

 net/dccp/input.c     |    2

 net/dccp/ipv4.c      |    4

 net/dccp/ipv6.c      |    4

 net/dccp/minisocks.c |    7 +

 net/dccp/proto.c     |    3

 9 files changed, 359 insertions(+), 11 deletions(-)
The set is also available for viewing online, beginning at

http://eden-feed.erg.abdn.ac.uk/cgi-bin/gitweb.cgi?p=dccp_exp.git;a=comm...
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