staging:rtl8192u: Remove union from qos_tsinfo - Style

The union is never used as a union but only as a bitfield struct.
One side of the union (u8 charData[3];) Only seems to be present to
ensure that the structures size is 3 bytes in length. That length, of
the structure is dictated by the largest element of the union, so the
byte array only dictates size if it's the largest element of the union.
The byte array and union add nothing.

The union has therefore been removed and the structure and access to
the structure simplified.

Additionally since one of the bitfield variables (ucAccessPolicy)
spans a byte boundary the base type of the bitfield has been changed
from u8 to u16. Compilers have probably moved on from having an issue
with this, call it OCD.

The changes are coding style in nature and should not impact runtime
code execution.

Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c

@@ -626,7 +626,7 @@ TsInitAddBA(
 	pBA->DialogToken++;						// DialogToken: Only keep the latest dialog token
 	pBA->BaParamSet.field.AMSDU_Support = 0;	// Do not support A-MSDU with A-MPDU now!!
 	pBA->BaParamSet.field.BAPolicy = Policy;	// Policy: Delayed or Immediate
-	pBA->BaParamSet.field.TID = pTS->ts_common_info.t_spec.f.TSInfo.field.ucTSID;	// TID
+	pBA->BaParamSet.field.TID = pTS->ts_common_info.t_spec.f.TSInfo.ucTSID;	// TID
 	// BufferSize: This need to be set according to A-MPDU vector
 	pBA->BaParamSet.field.BufferSize = 32;		// BufferSize: This need to be set according to A-MPDU vector
 	pBA->BaTimeoutValue = 0;					// Timeout value: Set 0 to disable Timer

drivers/staging/rtl8192u/ieee80211/rtl819x_Qos.h

@@ -26,26 +26,24 @@ enum direction_value {
 };
 
 
-//
-// TS Info field in WMM TSPEC Element.
-// Ref:
-//	1. WMM spec 2.2.11: WME TSPEC Element, p.18.
-//	2. 8185 QoS code: QOS_TSINFO [def. in QoS_mp.h]
-//
-union qos_tsinfo {
-	u8		charData[3];
-	struct {
-		u8		ucTrafficType:1;			//WMM is reserved
-		u8		ucTSID:4;
-		u8		ucDirection:2;
-		u8		ucAccessPolicy:2;	//WMM: bit8=0, bit7=1
-		u8		ucAggregation:1;		//WMM is reserved
-		u8		ucPSB:1;				//WMMSA is APSD
-		u8		ucUP:3;
-		u8		ucTSInfoAckPolicy:2;		//WMM is reserved
-		u8		ucSchedule:1;			//WMM is reserved
-		u8		ucReserved:7;
-	} field;
+/*
+ * TS Info field in WMM TSPEC Element.
+ * Ref:
+ *	1. WMM spec 2.2.11: WME TSPEC Element, p.18.
+ *	2. 8185 QoS code: QOS_TSINFO [def. in QoS_mp.h]
+ * Note: sizeof 3 Bytes
+ */
+struct qos_tsinfo {
+	u16		ucTrafficType:1;	//WMM is reserved
+	u16		ucTSID:4;
+	u16		ucDirection:2;
+	u16		ucAccessPolicy:2;	//WMM: bit8=0, bit7=1
+	u16		ucAggregation:1;	//WMM is reserved
+	u16		ucPSB:1;		//WMMSA is APSD
+	u16		ucUP:3;
+	u16		ucTSInfoAckPolicy:2;	//WMM is reserved
+	u8		ucSchedule:1;		//WMM is reserved
+	u8		ucReserved:7;
 };
 
 //
@@ -56,7 +54,7 @@ typedef union _TSPEC_BODY {
 	u8		charData[55];
 
 	struct {
-		union qos_tsinfo	TSInfo;	//u8	TSInfo[3];
+		struct qos_tsinfo	TSInfo;	//u8	TSInfo[3];
 		u16	NominalMSDUsize;
 		u16	MaxMSDUsize;
 		u32	MinServiceItv;

drivers/staging/rtl8192u/ieee80211/rtl819x_TSProc.c

@@ -246,10 +246,10 @@ static struct ts_common_info *SearchAdmitTRStream(struct ieee80211_device *ieee,
 		if (!search_dir[dir])
 			continue;
 		list_for_each_entry(pRet, psearch_list, list){
-	//		IEEE80211_DEBUG(IEEE80211_DL_TS, "ADD:%pM, TID:%d, dir:%d\n", pRet->Addr, pRet->TSpec.f.TSInfo.field.ucTSID, pRet->TSpec.f.TSInfo.field.ucDirection);
+	//		IEEE80211_DEBUG(IEEE80211_DL_TS, "ADD:%pM, TID:%d, dir:%d\n", pRet->Addr, pRet->TSpec.f.TSInfo.ucTSID, pRet->TSpec.f.TSInfo.ucDirection);
 			if (memcmp(pRet->addr, Addr, 6) == 0)
-				if (pRet->t_spec.f.TSInfo.field.ucTSID == TID)
-					if(pRet->t_spec.f.TSInfo.field.ucDirection == dir) {
+				if (pRet->t_spec.f.TSInfo.ucTSID == TID)
+					if(pRet->t_spec.f.TSInfo.ucDirection == dir) {
 	//					printk("Bingo! got it\n");
 						break;
 					}
@@ -355,7 +355,7 @@ bool GetTs(
 			// For HCCA or WMMSA, TS cannot be addmit without negotiation.
 			//
 			TSPEC_BODY	TSpec;
-			union qos_tsinfo	*pTSInfo = &TSpec.f.TSInfo;
+			struct qos_tsinfo	*pTSInfo = &TSpec.f.TSInfo;
 			struct list_head	*pUnusedList =
 								(TxRxSelect == TX_DIR)?
 								(&ieee->Tx_TS_Unused_List):
@@ -383,15 +383,15 @@ bool GetTs(
 
 				IEEE80211_DEBUG(IEEE80211_DL_TS, "to init current TS, UP:%d, Dir:%d, addr:%pM\n", UP, Dir, Addr);
 				// Prepare TS Info releated field
-				pTSInfo->field.ucTrafficType = 0;			// Traffic type: WMM is reserved in this field
-				pTSInfo->field.ucTSID = UP;			// TSID
-				pTSInfo->field.ucDirection = Dir;			// Direction: if there is DirectLink, this need additional consideration.
-				pTSInfo->field.ucAccessPolicy = 1;		// Access policy
-				pTSInfo->field.ucAggregation = 0;		// Aggregation
-				pTSInfo->field.ucPSB = 0;				// Aggregation
-				pTSInfo->field.ucUP = UP;				// User priority
-				pTSInfo->field.ucTSInfoAckPolicy = 0;		// Ack policy
-				pTSInfo->field.ucSchedule = 0;			// Schedule
+				pTSInfo->ucTrafficType = 0;		// Traffic type: WMM is reserved in this field
+				pTSInfo->ucTSID = UP;			// TSID
+				pTSInfo->ucDirection = Dir;		// Direction: if there is DirectLink, this need additional consideration.
+				pTSInfo->ucAccessPolicy = 1;		// Access policy
+				pTSInfo->ucAggregation = 0;		// Aggregation
+				pTSInfo->ucPSB = 0;			// Aggregation
+				pTSInfo->ucUP = UP;			// User priority
+				pTSInfo->ucTSInfoAckPolicy = 0;		// Ack policy
+				pTSInfo->ucSchedule = 0;		// Schedule
 
 				MakeTSEntry(*ppTS, Addr, &TSpec, NULL, 0, 0);
 				AdmitTS(ieee, *ppTS, 0);