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ap_list: Remove unused iteration list pointers

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This iter_next/iter_prev pointers were not really used for anything, so
get rid of the unnecessary complexity in the AP list maintenance.

Signed-hostap: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2013-03-30 17:02:06 +02:00
parent 6b16917f39
commit 08c99cafd2
3 changed files with 1 additions and 37 deletions
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30
src/ap/ap_list.c
View File

@ -87,34 +87,6 @@ static void ap_ap_list_del(struct hostapd_iface *iface, struct ap_info *ap)
} }
static void ap_ap_iter_list_add(struct hostapd_iface *iface,
struct ap_info *ap)
{
if (iface->ap_iter_list) {
ap->iter_prev = iface->ap_iter_list->iter_prev;
iface->ap_iter_list->iter_prev = ap;
} else
ap->iter_prev = ap;
ap->iter_next = iface->ap_iter_list;
iface->ap_iter_list = ap;
}
static void ap_ap_iter_list_del(struct hostapd_iface *iface,
struct ap_info *ap)
{
if (iface->ap_iter_list == ap)
iface->ap_iter_list = ap->iter_next;
else
ap->iter_prev->iter_next = ap->iter_next;
if (ap->iter_next)
ap->iter_next->iter_prev = ap->iter_prev;
else if (iface->ap_iter_list)
iface->ap_iter_list->iter_prev = ap->iter_prev;
}
static void ap_ap_hash_add(struct hostapd_iface *iface, struct ap_info *ap) static void ap_ap_hash_add(struct hostapd_iface *iface, struct ap_info *ap)
{ {
ap->hnext = iface->ap_hash[STA_HASH(ap->addr)]; ap->hnext = iface->ap_hash[STA_HASH(ap->addr)];
@ -148,7 +120,6 @@ static void ap_free_ap(struct hostapd_iface *iface, struct ap_info *ap)
{ {
ap_ap_hash_del(iface, ap); ap_ap_hash_del(iface, ap);
ap_ap_list_del(iface, ap); ap_ap_list_del(iface, ap);
ap_ap_iter_list_del(iface, ap);
iface->num_ap--; iface->num_ap--;
os_free(ap); os_free(ap);
@ -203,7 +174,6 @@ static struct ap_info * ap_ap_add(struct hostapd_iface *iface, const u8 *addr)
ap_ap_list_add(iface, ap); ap_ap_list_add(iface, ap);
iface->num_ap++; iface->num_ap++;
ap_ap_hash_add(iface, ap); ap_ap_hash_add(iface, ap);
ap_ap_iter_list_add(iface, ap);
if (iface->num_ap > iface->conf->ap_table_max_size && ap != ap->prev) { if (iface->num_ap > iface->conf->ap_table_max_size && ap != ap->prev) {
wpa_printf(MSG_DEBUG, "Removing the least recently used AP " wpa_printf(MSG_DEBUG, "Removing the least recently used AP "

7
src/ap/ap_list.h
View File

@ -14,15 +14,10 @@
struct ap_info { struct ap_info {
/* Note: next/prev pointers are updated whenever a new beacon is /* Note: next/prev pointers are updated whenever a new beacon is
* received because these are used to find the least recently used * received because these are used to find the least recently used
* entries. iter_next/iter_prev are updated only when adding new BSSes * entries. */
* and when removing old ones. These should be used when iterating
* through the table in a manner that allows beacons to be received
* during the iteration. */
struct ap_info *next; /* next entry in AP list */ struct ap_info *next; /* next entry in AP list */
struct ap_info *prev; /* previous entry in AP list */ struct ap_info *prev; /* previous entry in AP list */
struct ap_info *hnext; /* next entry in hash table list */ struct ap_info *hnext; /* next entry in hash table list */
struct ap_info *iter_next; /* next entry in AP iteration list */
struct ap_info *iter_prev; /* previous entry in AP iteration list */
u8 addr[6]; u8 addr[6];
u8 supported_rates[WLAN_SUPP_RATES_MAX]; u8 supported_rates[WLAN_SUPP_RATES_MAX];
int erp; /* ERP Info or -1 if ERP info element not present */ int erp; /* ERP Info or -1 if ERP info element not present */

1
src/ap/hostapd.h
View File

@ -220,7 +220,6 @@ struct hostapd_iface {
int num_ap; /* number of entries in ap_list */ int num_ap; /* number of entries in ap_list */
struct ap_info *ap_list; /* AP info list head */ struct ap_info *ap_list; /* AP info list head */
struct ap_info *ap_hash[STA_HASH_SIZE]; struct ap_info *ap_hash[STA_HASH_SIZE];
struct ap_info *ap_iter_list;
unsigned int drv_flags; unsigned int drv_flags;