staging:rtl8192u: Remove union from aci_aifsn - Style

The union aci_aifsn is not used as a union, but only as a struct.
The union seems to have been used to ensure that the size of the
structure was only a single byte. That size is set by the bitfield
structure, adding a union with an unused byte adds nothing.

The union has been removed. This is a coding style change 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_Qos.h

@@ -2,19 +2,16 @@
 #ifndef __INC_QOS_TYPE_H
 #define __INC_QOS_TYPE_H
 
-//
-// ACI/AIFSN Field.
-// Ref: WMM spec 2.2.2: WME Parameter Element, p.12.
-//
-union aci_aifsn {
-	u8	char_data;
-
-	struct {
-		u8	aifsn:4;
-		u8	acm:1;
-		u8	aci:2;
-		u8	reserved:1;
-	} f;	// Field
+/*
+ * ACI/AIFSN Field.
+ * Ref: WMM spec 2.2.2: WME Parameter Element, p.12.
+ * Note: 1 Byte Length
+ */
+struct aci_aifsn {
+	u8	aifsn:4;
+	u8	acm:1;
+	u8	aci:2;
+	u8:1;
 };
 
 //

drivers/staging/rtl8192u/r8192U_dm.c

@@ -2242,12 +2242,12 @@ static void dm_check_edca_turbo(
 			{
 				/*  TODO:  Modified this part and try to set acm control in only 1 IO processing!! */
 
-				union aci_aifsn *pAciAifsn = (union aci_aifsn *)&(qos_parameters->aifs[0]);
+				struct aci_aifsn *pAciAifsn = (struct aci_aifsn *)&(qos_parameters->aifs[0]);
 				u8		AcmCtrl;
 
 				read_nic_byte(dev, AcmHwCtrl, &AcmCtrl);
 
-				if (pAciAifsn->f.acm) { /*  acm bit is 1. */
+				if (pAciAifsn->acm) { /*  acm bit is 1. */
 					AcmCtrl |= AcmHw_BeqEn;
 				} else {	/* ACM bit is 0. */
 					AcmCtrl &= (~AcmHw_BeqEn);