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Commit a5e73c29 authored Jan 14, 2008 by Patrick McHardy Committed by David S. Miller Jan 28, 2008

[NETFILTER]: nf_conntrack_{tcp,sctp}: shrink state table



The TCP and SCTP conntrack state transition tables only holds
small numbers, but gcc uses 4 byte per entry for the enum. Switching
to an u8 reduces the size from 480 to 120 bytes for TCP and from
576 to 144 bytes for SCTP.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent 77e2420b

net/netfilter/nf_conntrack_proto_sctp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -110,7 +110,7 @@ cookie echoed to closed.
		*/

		/* SCTP conntrack state transitions */
		static const enum sctp_conntrack sctp_conntracks[2][9][SCTP_CONNTRACK_MAX] = {
		static const u8 sctp_conntracks[2][9][SCTP_CONNTRACK_MAX] = {
		{
		/* ORIGINAL */
		/* sNO, sCL, sCW, sCE, sES, sSS, sSR, sSA */

net/netfilter/nf_conntrack_proto_tcp.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -149,7 +149,7 @@ enum tcp_bit_set {
		* if they are invalid
		* or we do not support the request (simultaneous open)
		*/
		static const enum tcp_conntrack tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = {
		static const u8 tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = {
		{
		/* ORIGINAL */
		/* sNO, sSS, sSR, sES, sFW, sCW, sLA, sTW, sCL, sLI */