5 files changed, 16 insertions, 32 deletions

diff --git a/drivers/net/wireless/intersil/hostap/Kconfig b/drivers/net/wireless/intersil/hostap/Kconfig
index 6ad88299432f..c865d3156cea 100644
--- a/drivers/net/wireless/intersil/hostap/Kconfig
+++ b/drivers/net/wireless/intersil/hostap/Kconfig
@@ -5,11 +5,7 @@ config HOSTAP
 	select WEXT_SPY
 	select WEXT_PRIV
 	select CRYPTO
-	select CRYPTO_ARC4
-	select CRYPTO_ECB
-	select CRYPTO_AES
 	select CRYPTO_MICHAEL_MIC
-	select CRYPTO_ECB
 	select CRC32
 	select LIB80211
 	select LIB80211_CRYPT_WEP
diff --git a/drivers/net/wireless/intersil/hostap/hostap.h b/drivers/net/wireless/intersil/hostap/hostap.h
index 8130d29c7989..c4b81ff7d7e4 100644
--- a/drivers/net/wireless/intersil/hostap/hostap.h
+++ b/drivers/net/wireless/intersil/hostap/hostap.h
@@ -8,8 +8,10 @@
 #include "hostap_wlan.h"
 #include "hostap_ap.h"
 
-static const long freq_list[] = { 2412, 2417, 2422, 2427, 2432, 2437, 2442,
-				  2447, 2452, 2457, 2462, 2467, 2472, 2484 };
+static const long __maybe_unused freq_list[] = {
+	2412, 2417, 2422, 2427, 2432, 2437, 2442,
+	2447, 2452, 2457, 2462, 2467, 2472, 2484
+};
 #define FREQ_COUNT ARRAY_SIZE(freq_list)
 
 /* hostap.c */
diff --git a/drivers/net/wireless/intersil/hostap/hostap_ap.c b/drivers/net/wireless/intersil/hostap/hostap_ap.c
index 3ec46f48cfde..8bcc1cdcb75b 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_ap.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_ap.c
@@ -1504,7 +1504,7 @@ static void handle_assoc(local_info_t *local, struct sk_buff *skb,
 	u16 resp = WLAN_STATUS_SUCCESS;
 	struct sta_info *sta = NULL;
 	int send_deauth = 0;
-	char *txt = "";
+	char __always_unused *txt = "";
 	u8 prev_ap[ETH_ALEN];
 
 	left = len = skb->len - IEEE80211_MGMT_HDR_LEN;
diff --git a/drivers/net/wireless/intersil/hostap/hostap_hw.c b/drivers/net/wireless/intersil/hostap/hostap_hw.c
index b6c497ce12e1..22cfb6452644 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_hw.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_hw.c
@@ -320,12 +320,6 @@ static int hfa384x_cmd(struct net_device *dev, u16 cmd, u16 param0,
 	iface = netdev_priv(dev);
 	local = iface->local;
 
-	if (in_interrupt()) {
-		printk(KERN_DEBUG "%s: hfa384x_cmd called from interrupt "
-		       "context\n", dev->name);
-		return -1;
-	}
-
 	if (local->cmd_queue_len >= HOSTAP_CMD_QUEUE_MAX_LEN) {
 		printk(KERN_DEBUG "%s: hfa384x_cmd: cmd_queue full\n",
 		       dev->name);
@@ -1560,12 +1554,6 @@ static void prism2_hw_reset(struct net_device *dev)
 	iface = netdev_priv(dev);
 	local = iface->local;
 
-	if (in_interrupt()) {
-		printk(KERN_DEBUG "%s: driver bug - prism2_hw_reset() called "
-		       "in interrupt context\n", dev->name);
-		return;
-	}
-
 	if (local->hw_downloading)
 		return;
 
@@ -1803,7 +1791,7 @@ static int prism2_tx_80211(struct sk_buff *skb, struct net_device *dev)
 	struct hfa384x_tx_frame txdesc;
 	struct hostap_skb_tx_data *meta;
 	int hdr_len, data_len, idx, res, ret = -1;
-	u16 tx_control, fc;
+	u16 tx_control;
 
 	iface = netdev_priv(dev);
 	local = iface->local;
@@ -1826,7 +1814,6 @@ static int prism2_tx_80211(struct sk_buff *skb, struct net_device *dev)
 	/* skb->data starts with txdesc->frame_control */
 	hdr_len = 24;
 	skb_copy_from_linear_data(skb, &txdesc.frame_control, hdr_len);
- 	fc = le16_to_cpu(txdesc.frame_control);
 	if (ieee80211_is_data(txdesc.frame_control) &&
 	    ieee80211_has_a4(txdesc.frame_control) &&
 	    skb->len >= 30) {
@@ -2083,9 +2070,9 @@ static void hostap_rx_skb(local_info_t *local, struct sk_buff *skb)
 
 
 /* Called only as a tasklet (software IRQ) */
-static void hostap_rx_tasklet(unsigned long data)
+static void hostap_rx_tasklet(struct tasklet_struct *t)
 {
-	local_info_t *local = (local_info_t *) data;
+	local_info_t *local = from_tasklet(local, t, rx_tasklet);
 	struct sk_buff *skb;
 
 	while ((skb = skb_dequeue(&local->rx_list)) != NULL)
@@ -2288,9 +2275,9 @@ static void prism2_tx_ev(local_info_t *local)
 
 
 /* Called only as a tasklet (software IRQ) */
-static void hostap_sta_tx_exc_tasklet(unsigned long data)
+static void hostap_sta_tx_exc_tasklet(struct tasklet_struct *t)
 {
-	local_info_t *local = (local_info_t *) data;
+	local_info_t *local = from_tasklet(local, t, sta_tx_exc_tasklet);
 	struct sk_buff *skb;
 
 	while ((skb = skb_dequeue(&local->sta_tx_exc_list)) != NULL) {
@@ -2390,9 +2377,9 @@ static void prism2_txexc(local_info_t *local)
 
 
 /* Called only as a tasklet (software IRQ) */
-static void hostap_info_tasklet(unsigned long data)
+static void hostap_info_tasklet(struct tasklet_struct *t)
 {
-	local_info_t *local = (local_info_t *) data;
+	local_info_t *local = from_tasklet(local, t, info_tasklet);
 	struct sk_buff *skb;
 
 	while ((skb = skb_dequeue(&local->info_list)) != NULL) {
@@ -2469,9 +2456,9 @@ static void prism2_info(local_info_t *local)
 
 
 /* Called only as a tasklet (software IRQ) */
-static void hostap_bap_tasklet(unsigned long data)
+static void hostap_bap_tasklet(struct tasklet_struct *t)
 {
-	local_info_t *local = (local_info_t *) data;
+	local_info_t *local = from_tasklet(local, t, bap_tasklet);
 	struct net_device *dev = local->dev;
 	u16 ev;
 	int frames = 30;
@@ -3183,7 +3170,7 @@ prism2_init_local_data(struct prism2_helper_functions *funcs, int card_idx,
 	/* Initialize tasklets for handling hardware IRQ related operations
 	 * outside hw IRQ handler */
 #define HOSTAP_TASKLET_INIT(q, f, d) \
-do { memset((q), 0, sizeof(*(q))); (q)->func = (f); (q)->data = (d); } \
+do { memset((q), 0, sizeof(*(q))); (q)->func = (void(*)(unsigned long))(f); } \
 while (0)
 	HOSTAP_TASKLET_INIT(&local->bap_tasklet, hostap_bap_tasklet,
 			    (unsigned long) local);
diff --git a/drivers/net/wireless/intersil/hostap/hostap_ioctl.c b/drivers/net/wireless/intersil/hostap/hostap_ioctl.c
index 1ca9731d9b14..514c7b01dbf6 100644
--- a/drivers/net/wireless/intersil/hostap/hostap_ioctl.c
+++ b/drivers/net/wireless/intersil/hostap/hostap_ioctl.c
@@ -1955,7 +1955,7 @@ static inline int prism2_translate_scan(local_info_t *local,
 					char *buffer, int buflen)
 {
 	struct hfa384x_hostscan_result *scan;
-	int entry, hostscan;
+	int entry;
 	char *current_ev = buffer;
 	char *end_buf = buffer + buflen;
 	struct list_head *ptr;
@@ -1968,7 +1968,6 @@ static inline int prism2_translate_scan(local_info_t *local,
 		bss->included = 0;
 	}
 
-	hostscan = local->last_scan_type == PRISM2_HOSTSCAN;
 	for (entry = 0; entry < local->last_scan_results_count; entry++) {
 		int found = 0;
 		scan = &local->last_scan_results[entry];