xfrm_state_afinfo is a very large struct; its over 4kbyte on 64bit systems.
The size comes from two arrays to store the l4 protocol type pointers
(esp, ah, ipcomp and so on).
There are only a handful of those, so just use pointers for protocols
that we implement instead of mostly-empty arrays.
This also removes the template init/sort related indirections.
Structure size goes down to 120 bytes on x86_64.
include/net/xfrm.h | 49 ++---
net/ipv4/ah4.c | 3
net/ipv4/esp4.c | 3
net/ipv4/esp4_offload.c | 4
net/ipv4/ipcomp.c | 3
net/ipv4/xfrm4_state.c | 45 -----
net/ipv4/xfrm4_tunnel.c | 3
net/ipv6/ah6.c | 4
net/ipv6/esp6.c | 3
net/ipv6/esp6_offload.c | 4
net/ipv6/ipcomp6.c | 3
net/ipv6/mip6.c | 6
net/ipv6/xfrm6_state.c | 137 ----------------
net/xfrm/xfrm_input.c | 24 +-
net/xfrm/xfrm_policy.c | 2
net/xfrm/xfrm_state.c | 400 +++++++++++++++++++++++++++++++++++-------------
16 files changed, 343 insertions(+), 350 deletions(-)
Florian Westphal (6):
xfrm: remove init_tempsel indirection from xfrm_state_afinfo
xfrm: remove init_temprop indirection from xfrm_state_afinfo
xfrm: remove init_flags indirection from xfrm_state_afinfo
xfrm: remove state and template sort indirections from xfrm_state_afinfo
xfrm: remove eth_proto value from xfrm_state_afinfo
xfrm: remove type and offload_type map from xfrm_state_afinfo
