ath9k_htc: Fix sparse endian warnings

This patch fixes a bunch of endian issues that
were exposed by sparse. It's a miracle that the driver
worked at all till now.

The Lord be praised.
Signed-off-by: Sujith <Sujith.Manoharan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/htc.h

@@ -124,13 +124,13 @@ struct ath9k_htc_cap_target {
 struct ath9k_htc_target_vif {
 	u8 index;
 	u8 des_bssid[ETH_ALEN];
-	enum htc_opmode opmode;
+	__be32 opmode;
 	u8 myaddr[ETH_ALEN];
 	u8 bssid[ETH_ALEN];
 	u32 flags;
 	u32 flags_ext;
 	u16 ps_sta;
-	u16 rtsthreshold;
+	__be16 rtsthreshold;
 	u8 ath_cap;
 	u8 node;
 	s8 mcast_rate;
@@ -151,7 +151,7 @@ struct ath9k_htc_target_sta {
 	u8 sta_index;
 	u8 vif_index;
 	u8 vif_sta;
-	u16 flags; /* ATH_HTC_STA_* */
+	__be16 flags; /* ATH_HTC_STA_* */
 	u16 htcap;
 	u8 valid;
 	u16 capinfo;
@@ -191,16 +191,16 @@ struct ath9k_htc_rate {
 struct ath9k_htc_target_rate {
 	u8 sta_index;
 	u8 isnew;
-	u32 capflags;
+	__be32 capflags;
 	struct ath9k_htc_rate rates;
 };
 
 struct ath9k_htc_target_stats {
-	u32 tx_shortretry;
-	u32 tx_longretry;
-	u32 tx_xretries;
-	u32 ht_txunaggr_xretry;
-	u32 ht_tx_xretries;
+	__be32 tx_shortretry;
+	__be32 tx_longretry;
+	__be32 tx_xretries;
+	__be32 ht_txunaggr_xretry;
+	__be32 ht_tx_xretries;
 } __packed;
 
 struct ath9k_htc_vif {

drivers/net/wireless/ath/ath9k/htc_drv_beacon.c

@@ -26,7 +26,8 @@ static void ath9k_htc_beacon_config_sta(struct ath9k_htc_priv *priv,
 	enum ath9k_int imask = 0;
 	int dtimperiod, dtimcount, sleepduration;
 	int cfpperiod, cfpcount, bmiss_timeout;
-	u32 nexttbtt = 0, intval, tsftu, htc_imask = 0;
+	u32 nexttbtt = 0, intval, tsftu;
+	__be32 htc_imask = 0;
 	u64 tsf;
 	int num_beacons, offset, dtim_dec_count, cfp_dec_count;
 	int ret;
@@ -142,7 +143,8 @@ static void ath9k_htc_beacon_config_adhoc(struct ath9k_htc_priv *priv,
 {
 	struct ath_common *common = ath9k_hw_common(priv->ah);
 	enum ath9k_int imask = 0;
-	u32 nexttbtt, intval, htc_imask = 0;
+	u32 nexttbtt, intval;
+	__be32 htc_imask = 0;
 	int ret;
 	u8 cmd_rsp;
 

drivers/net/wireless/ath/ath9k/htc_drv_main.c

@@ -125,7 +125,7 @@ static int ath9k_htc_set_channel(struct ath9k_htc_priv *priv,
 	bool fastcc = true;
 	struct ieee80211_channel *channel = hw->conf.channel;
 	enum htc_phymode mode;
-	u16 htc_mode;
+	__be16 htc_mode;
 	u8 cmd_rsp;
 	int ret;
 
@@ -378,7 +378,7 @@ static int ath9k_htc_init_rate(struct ath9k_htc_priv *priv,
 	priv->tgt_rate.sta_index = ista->index;
 	priv->tgt_rate.isnew = 1;
 	trate = priv->tgt_rate;
-	priv->tgt_rate.capflags = caps;
+	priv->tgt_rate.capflags = cpu_to_be32(caps);
 	trate.capflags = cpu_to_be32(caps);
 
 	WMI_CMD_BUF(WMI_RC_RATE_UPDATE_CMDID, &trate);
@@ -426,6 +426,7 @@ static void ath9k_htc_rc_update(struct ath9k_htc_priv *priv, bool is_cw40)
 	struct ath9k_htc_target_rate trate;
 	struct ath_common *common = ath9k_hw_common(priv->ah);
 	int ret;
+	u32 caps = be32_to_cpu(priv->tgt_rate.capflags);
 	u8 cmd_rsp;
 
 	memset(&trate, 0, sizeof(trate));
@@ -433,11 +434,12 @@ static void ath9k_htc_rc_update(struct ath9k_htc_priv *priv, bool is_cw40)
 	trate = priv->tgt_rate;
 
 	if (is_cw40)
-		priv->tgt_rate.capflags |= WLAN_RC_40_FLAG;
+		caps |= WLAN_RC_40_FLAG;
 	else
-		priv->tgt_rate.capflags &= ~WLAN_RC_40_FLAG;
+		caps &= ~WLAN_RC_40_FLAG;
 
-	trate.capflags = cpu_to_be32(priv->tgt_rate.capflags);
+	priv->tgt_rate.capflags = cpu_to_be32(caps);
+	trate.capflags = cpu_to_be32(caps);
 
 	WMI_CMD_BUF(WMI_RC_RATE_UPDATE_CMDID, &trate);
 	if (ret) {
@@ -1104,7 +1106,7 @@ static int ath9k_htc_start(struct ieee80211_hw *hw)
 	struct ath9k_channel *init_channel;
 	int ret = 0;
 	enum htc_phymode mode;
-	u16 htc_mode;
+	__be16 htc_mode;
 	u8 cmd_rsp;
 
 	ath_print(common, ATH_DBG_CONFIG,

drivers/net/wireless/ath/ath9k/htc_drv_txrx.c

@@ -530,7 +530,7 @@ static bool ath9k_rx_prepare(struct ath9k_htc_priv *priv,
 			priv->ah->stats.avgbrssi = rxbuf->rxstatus.rs_rssi;
 	}
 
-	rx_status->mactime = rxbuf->rxstatus.rs_tstamp;
+	rx_status->mactime = be64_to_cpu(rxbuf->rxstatus.rs_tstamp);
 	rx_status->band = hw->conf.channel->band;
 	rx_status->freq = hw->conf.channel->center_freq;
 	rx_status->signal =  rxbuf->rxstatus.rs_rssi + ATH_DEFAULT_NOISE_FLOOR;
@@ -634,13 +634,8 @@ void ath9k_htc_rxep(void *drv_priv, struct sk_buff *skb,
 
 	rxstatus = (struct ath_htc_rx_status *)skb->data;
 
-	rxstatus->rs_tstamp = be64_to_cpu(rxstatus->rs_tstamp);
-	rxstatus->rs_datalen = be16_to_cpu(rxstatus->rs_datalen);
-	rxstatus->evm0 = be32_to_cpu(rxstatus->evm0);
-	rxstatus->evm1 = be32_to_cpu(rxstatus->evm1);
-	rxstatus->evm2 = be32_to_cpu(rxstatus->evm2);
-
-	if (rxstatus->rs_datalen - (len - HTC_RX_FRAME_HEADER_SIZE) != 0) {
+	if (be16_to_cpu(rxstatus->rs_datalen) -
+	    (len - HTC_RX_FRAME_HEADER_SIZE) != 0) {
 		ath_print(common, ATH_DBG_FATAL,
 			  "Corrupted RX data len, dropping "
 			  "(epid: %d, dlen: %d, skblen: %d)\n",

drivers/net/wireless/ath/ath9k/htc_hst.c

@@ -368,7 +368,7 @@ void ath9k_htc_rx_msg(struct htc_target *htc_handle,
 	struct htc_frame_hdr *htc_hdr;
 	enum htc_endpoint_id epid;
 	struct htc_endpoint *endpoint;
-	u16 *msg_id;
+	__be16 *msg_id;
 
 	if (!htc_handle || !skb)
 		return;
@@ -388,14 +388,14 @@ void ath9k_htc_rx_msg(struct htc_target *htc_handle,
 
 		/* Handle trailer */
 		if (htc_hdr->flags & HTC_FLAGS_RECV_TRAILER) {
-			if (be32_to_cpu(*(u32 *) skb->data) == 0x00C60000)
+			if (be32_to_cpu(*(__be32 *) skb->data) == 0x00C60000)
 				/* Move past the Watchdog pattern */
 				htc_hdr = (struct htc_frame_hdr *)(skb->data + 4);
 		}
 
 		/* Get the message ID */
-		msg_id = (u16 *) ((void *) htc_hdr +
-					   sizeof(struct htc_frame_hdr));
+		msg_id = (__be16 *) ((void *) htc_hdr +
+				     sizeof(struct htc_frame_hdr));
 
 		/* Now process HTC messages */
 		switch (be16_to_cpu(*msg_id)) {

drivers/net/wireless/ath/ath9k/htc_hst.h

@@ -59,20 +59,20 @@ enum htc_endpoint_id {
 struct htc_frame_hdr {
 	u8 endpoint_id;
 	u8 flags;
-	u16 payload_len;
+	__be16 payload_len;
 	u8 control[4];
 } __packed;
 
 struct htc_ready_msg {
-	u16 message_id;
-	u16 credits;
-	u16 credit_size;
+	__be16 message_id;
+	__be16 credits;
+	__be16 credit_size;
 	u8 max_endpoints;
 	u8 pad;
 } __packed;
 
 struct htc_config_pipe_msg {
-	u16 message_id;
+	__be16 message_id;
 	u8 pipe_id;
 	u8 credits;
 } __packed;
@@ -192,9 +192,9 @@ enum htc_service_group_ids{
 #define WMI_DATA_BK_SVC   MAKE_SERVICE_ID(WMI_SERVICE_GROUP, 8)
 
 struct htc_conn_svc_msg {
-	u16 msg_id;
-	u16 service_id;
-	u16 con_flags;
+	__be16 msg_id;
+	__be16 service_id;
+	__be16 con_flags;
 	u8 dl_pipeid;
 	u8 ul_pipeid;
 	u8 svc_meta_len;
@@ -209,17 +209,17 @@ struct htc_conn_svc_msg {
 #define HTC_SERVICE_NO_MORE_EP   4
 
 struct htc_conn_svc_rspmsg {
-	u16 msg_id;
-	u16 service_id;
+	__be16 msg_id;
+	__be16 service_id;
 	u8 status;
 	u8 endpoint_id;
-	u16 max_msg_len;
+	__be16 max_msg_len;
 	u8 svc_meta_len;
 	u8 pad;
 } __packed;
 
 struct htc_comp_msg {
-	u16 msg_id;
+	__be16 msg_id;
 } __packed;
 
 int htc_init(struct htc_target *target);

drivers/net/wireless/ath/ath9k/mac.h

@@ -155,8 +155,8 @@ struct ath_rx_status {
 };
 
 struct ath_htc_rx_status {
-	u64 rs_tstamp;
-	u16 rs_datalen;
+	__be64 rs_tstamp;
+	__be16 rs_datalen;
 	u8 rs_status;
 	u8 rs_phyerr;
 	int8_t rs_rssi;
@@ -175,9 +175,9 @@ struct ath_htc_rx_status {
 	u8 rs_num_delims;
 	u8 rs_flags;
 	u8 rs_dummy;
-	u32 evm0;
-	u32 evm1;
-	u32 evm2;
+	__be32 evm0;
+	__be32 evm1;
+	__be32 evm2;
 };
 
 #define ATH9K_RXERR_CRC           0x01

drivers/net/wireless/ath/ath9k/wmi.c

@@ -129,7 +129,7 @@ void ath9k_wmi_tasklet(unsigned long data)
 	void *wmi_event;
 	unsigned long flags;
 #ifdef CONFIG_ATH9K_HTC_DEBUGFS
-	u32 txrate;
+	__be32 txrate;
 #endif
 
 	spin_lock_irqsave(&priv->wmi->wmi_lock, flags);

drivers/net/wireless/ath/ath9k/wmi.h

@@ -19,7 +19,7 @@
 
 
 struct wmi_event_txrate {
-	u32 txrate;
+	__be32 txrate;
 	struct {
 		u8 rssi_thresh;
 		u8 per;
@@ -27,8 +27,8 @@ struct wmi_event_txrate {
 } __packed;
 
 struct wmi_cmd_hdr {
-	u16 command_id;
-	u16 seq_no;
+	__be16 command_id;
+	__be16 seq_no;
 } __packed;
 
 struct wmi_swba {
@@ -87,8 +87,8 @@ enum wmi_event_id {
 #define MAX_CMD_NUMBER 62
 
 struct register_write {
-	u32 reg;
-	u32 val;
+	__be32 reg;
+	__be32 val;
 };
 
 struct wmi {