[PATCH] hostap: Use list_for_each_entry

Use list_for_each_entry() instead of manual iteration and
substitute some list_for_each() loops with list_for_each_entry().

Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com>
Signed-off-by: Jouni Malinen <j@w1.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/hostap/hostap_ap.c b/drivers/net/wireless/hostap/hostap_ap.c
index d169529..9090052 100644 (file)
--- a/drivers/net/wireless/hostap/hostap_ap.c
+++ b/drivers/net/wireless/hostap/hostap_ap.c
@@ -326,7 +326,6 @@ static int ap_control_proc_read(char *page, char **start, off_t off,
        char *p = page;
        struct ap_data *ap = (struct ap_data *) data;
        char *policy_txt;
-       struct list_head *ptr;
        struct mac_entry *entry;
 
        if (off != 0) {
@@ -352,14 +351,12 @@ static int ap_control_proc_read(char *page, char **start, off_t off,
        p += sprintf(p, "MAC entries: %u\n", ap->mac_restrictions.entries);
        p += sprintf(p, "MAC list:\n");
        spin_lock_bh(&ap->mac_restrictions.lock);
-       for (ptr = ap->mac_restrictions.mac_list.next;
-            ptr != &ap->mac_restrictions.mac_list; ptr = ptr->next) {
+       list_for_each_entry(entry, &ap->mac_restrictions.mac_list, list) {
                if (p - page > PAGE_SIZE - 80) {
                        p += sprintf(p, "All entries did not fit one page.\n");
                        break;
                }
 
-               entry = list_entry(ptr, struct mac_entry, list);
                p += sprintf(p, MACSTR "\n", MAC2STR(entry->addr));
        }
        spin_unlock_bh(&ap->mac_restrictions.lock);
@@ -413,7 +410,6 @@ int ap_control_del_mac(struct mac_restrictions *mac_restrictions, u8 *mac)
 static int ap_control_mac_deny(struct mac_restrictions *mac_restrictions,
                               u8 *mac)
 {
-       struct list_head *ptr;
        struct mac_entry *entry;
        int found = 0;
 
@@ -421,10 +417,7 @@ static int ap_control_mac_deny(struct mac_restrictions *mac_restrictions,
                return 0;
 
        spin_lock_bh(&mac_restrictions->lock);
-       for (ptr = mac_restrictions->mac_list.next;
-            ptr != &mac_restrictions->mac_list; ptr = ptr->next) {
-               entry = list_entry(ptr, struct mac_entry, list);
-
+       list_for_each_entry(entry, &mac_restrictions->mac_list, list) {
                if (memcmp(entry->addr, mac, ETH_ALEN) == 0) {
                        found = 1;
                        break;
@@ -519,7 +512,7 @@ static int prism2_ap_proc_read(char *page, char **start, off_t off,
 {
        char *p = page;
        struct ap_data *ap = (struct ap_data *) data;
-       struct list_head *ptr;
+       struct sta_info *sta;
        int i;
 
        if (off > PROC_LIMIT) {
@@ -529,9 +522,7 @@ static int prism2_ap_proc_read(char *page, char **start, off_t off,
 
        p += sprintf(p, "# BSSID CHAN SIGNAL NOISE RATE SSID FLAGS\n");
        spin_lock_bh(&ap->sta_table_lock);
-       for (ptr = ap->sta_list.next; ptr != &ap->sta_list; ptr = ptr->next) {
-               struct sta_info *sta = (struct sta_info *) ptr;
-
+       list_for_each_entry(sta, &ap->sta_list, list) {
                if (!sta->ap)
                        continue;
 
@@ -861,7 +852,7 @@ void hostap_init_ap_proc(local_info_t *local)
 
 void hostap_free_data(struct ap_data *ap)
 {
-       struct list_head *n, *ptr;
+       struct sta_info *n, *sta;
 
        if (ap == NULL || !ap->initialized) {
                printk(KERN_DEBUG "hostap_free_data: ap has not yet been "
@@ -875,8 +866,7 @@ void hostap_free_data(struct ap_data *ap)
        ap->crypt = ap->crypt_priv = NULL;
 #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
 
-       list_for_each_safe(ptr, n, &ap->sta_list) {
-               struct sta_info *sta = list_entry(ptr, struct sta_info, list);
+       list_for_each_entry_safe(sta, n, &ap->sta_list, list) {
                ap_sta_hash_del(ap, sta);
                list_del(&sta->list);
                if ((sta->flags & WLAN_STA_ASSOC) && !sta->ap && sta->local)
@@ -3200,15 +3190,14 @@ int hostap_update_rx_stats(struct ap_data *ap,
 
 void hostap_update_rates(local_info_t *local)
 {
-       struct list_head *ptr;
+       struct sta_info *sta;
        struct ap_data *ap = local->ap;
 
        if (!ap)
                return;
 
        spin_lock_bh(&ap->sta_table_lock);
-       for (ptr = ap->sta_list.next; ptr != &ap->sta_list; ptr = ptr->next) {
-               struct sta_info *sta = (struct sta_info *) ptr;
+       list_for_each_entry(sta, &ap->sta_list, list) {
                prism2_check_tx_rates(sta);
        }
        spin_unlock_bh(&ap->sta_table_lock);
@@ -3244,11 +3233,10 @@ void * ap_crypt_get_ptrs(struct ap_data *ap, u8 *addr, int permanent,
 void hostap_add_wds_links(local_info_t *local)
 {
        struct ap_data *ap = local->ap;
-       struct list_head *ptr;
+       struct sta_info *sta;
 
        spin_lock_bh(&ap->sta_table_lock);
-       list_for_each(ptr, &ap->sta_list) {
-               struct sta_info *sta = list_entry(ptr, struct sta_info, list);
+       list_for_each_entry(sta, &ap->sta_list, list) {
                if (sta->ap)
                        hostap_wds_link_oper(local, sta->addr, WDS_ADD);
        }