commit b7cfcd113ac2a1e6b02afc7d283295729fc178a9
author Thomas Pedersen <thomas@cozybit.com> Mon Dec 17 18:41:57 2012 -0800
committer Johannes Berg <johannes.berg@intel.com> Thu Jan 03 12:59:59 2013 +0100
tree ae679e6b42aff435ddf2c8d8276ae0ab228d9588
parent 4d76d21bd700fcf72a030ad75c71c816707039b8

mac80211: RMC buckets are just list heads

The array of rmc_entrys is redundant since only the
list_head is used. Make this an array of list_heads
instead and save ~6k per vif at runtime :D

Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

net/mac80211/mesh.c

diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
index 1bf03f9..649ad51 100644
--- a/net/mac80211/mesh.c
+++ b/net/mac80211/mesh.c
@@ -163,7 +163,7 @@
 		return -ENOMEM;
 	sdata->u.mesh.rmc->idx_mask = RMC_BUCKETS - 1;
 	for (i = 0; i < RMC_BUCKETS; i++)
-		INIT_LIST_HEAD(&sdata->u.mesh.rmc->bucket[i].list);
+		INIT_LIST_HEAD(&sdata->u.mesh.rmc->bucket[i]);
 	return 0;
 }
 
@@ -177,7 +177,7 @@
 		return;
 
 	for (i = 0; i < RMC_BUCKETS; i++)
-		list_for_each_entry_safe(p, n, &rmc->bucket[i].list, list) {
+		list_for_each_entry_safe(p, n, &rmc->bucket[i], list) {
 			list_del(&p->list);
 			kmem_cache_free(rm_cache, p);
 		}
@@ -210,7 +210,7 @@
 	/* Don't care about endianness since only match matters */
 	memcpy(&seqnum, &mesh_hdr->seqnum, sizeof(mesh_hdr->seqnum));
 	idx = le32_to_cpu(mesh_hdr->seqnum) & rmc->idx_mask;
-	list_for_each_entry_safe(p, n, &rmc->bucket[idx].list, list) {
+	list_for_each_entry_safe(p, n, &rmc->bucket[idx], list) {
 		++entries;
 		if (time_after(jiffies, p->exp_time) ||
 				(entries == RMC_QUEUE_MAX_LEN)) {
@@ -229,7 +229,7 @@
 	p->seqnum = seqnum;
 	p->exp_time = jiffies + RMC_TIMEOUT;
 	memcpy(p->sa, sa, ETH_ALEN);
-	list_add(&p->list, &rmc->bucket[idx].list);
+	list_add(&p->list, &rmc->bucket[idx]);
 	return 0;
 }
 

net/mac80211/mesh.h

diff --git a/net/mac80211/mesh.h b/net/mac80211/mesh.h
index 7c9215f..84c28c6 100644
--- a/net/mac80211/mesh.h
+++ b/net/mac80211/mesh.h
@@ -184,7 +184,7 @@
 };
 
 struct mesh_rmc {
-	struct rmc_entry bucket[RMC_BUCKETS];
+	struct list_head bucket[RMC_BUCKETS];
 	u32 idx_mask;
 };