staging: r8188eu: max_rx_ampdu_factor is always MAX_AMPDU_FACTOR_64K

The local variable max_rx_ampdu_factor in rtw_restructure_ht_ie() and
issue_action_BA() is always set to MAX_AMPDU_FACTOR_64K. Remove the
variable from both functions and use MAX_AMPDU_FACTOR_64K directly.

The case HW_VAR_MAX_RX_AMPDU_FACTOR in GetHalDefVar8188EUsb() is now
unused and can be removed.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220128115445.6606-4-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_mlme.c

@@ -1894,7 +1894,6 @@ void rtw_joinbss_reset(struct adapter *padapter)
 unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_ie, uint in_len, uint *pout_len)
 {
 	u32 ielen, out_len;
-	enum ht_cap_ampdu_factor max_rx_ampdu_factor;
 	unsigned char *p;
 	struct ieee80211_ht_cap ht_capie;
 	unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
@@ -1930,8 +1929,7 @@ unsigned int rtw_restructure_ht_ie(struct adapter *padapter, u8 *in_ie, u8 *out_
 		AMPDU_para [4:2]:Min MPDU Start Spacing
 		*/
 
-		GetHalDefVar8188EUsb(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR, &max_rx_ampdu_factor);
-		ht_capie.ampdu_params_info = (max_rx_ampdu_factor & 0x03);
+		ht_capie.ampdu_params_info = (MAX_AMPDU_FACTOR_64K & 0x03);
 
 		if (padapter->securitypriv.dot11PrivacyAlgrthm == _AES_)
 			ht_capie.ampdu_params_info |= (IEEE80211_HT_AMPDU_PARM_DENSITY & (0x07 << 2));

drivers/staging/r8188eu/core/rtw_mlme_ext.c

@@ -5747,7 +5747,6 @@ void issue_action_BA(struct adapter *padapter, unsigned char *raddr, unsigned ch
 	u16 BA_timeout_value;
 	__le16	le_tmp;
 	u16 BA_starting_seqctrl = 0;
-	enum ht_cap_ampdu_factor max_rx_ampdu_factor;
 	struct xmit_frame *pmgntframe;
 	struct pkt_attrib *pattrib;
 	u8 *pframe;
@@ -5830,24 +5829,7 @@ void issue_action_BA(struct adapter *padapter, unsigned char *raddr, unsigned ch
 			pframe = rtw_set_fixed_ie(pframe, 1, &pmlmeinfo->ADDBA_req.dialog_token, &pattrib->pktlen);
 			pframe = rtw_set_fixed_ie(pframe, 2, (unsigned char *)&status, &pattrib->pktlen);
 			BA_para_set = le16_to_cpu(pmlmeinfo->ADDBA_req.BA_para_set) & 0x3f;
-			GetHalDefVar8188EUsb(padapter, HW_VAR_MAX_RX_AMPDU_FACTOR, &max_rx_ampdu_factor);
-			switch (max_rx_ampdu_factor) {
-			case MAX_AMPDU_FACTOR_64K:
-				BA_para_set |= 0x1000; /* 64 buffer size */
-				break;
-			case MAX_AMPDU_FACTOR_32K:
-				BA_para_set |= 0x0800; /* 32 buffer size */
-				break;
-			case MAX_AMPDU_FACTOR_16K:
-				BA_para_set |= 0x0400; /* 16 buffer size */
-				break;
-			case MAX_AMPDU_FACTOR_8K:
-				BA_para_set |= 0x0200; /* 8 buffer size */
-				break;
-			default:
-				BA_para_set |= 0x1000; /* 64 buffer size */
-				break;
-			}
+			BA_para_set |= 0x1000; /* 64 buffer size */
 
 			if (pregpriv->ampdu_amsdu == 0)/* disabled */
 				BA_para_set = BA_para_set & ~BIT(0);

drivers/staging/r8188eu/hal/usb_halinit.c

@@ -1625,9 +1625,6 @@ u8 GetHalDefVar8188EUsb(struct adapter *Adapter, enum hal_def_variable eVariable
 	case HAL_DEF_DBG_DM_FUNC:
 		*((u32 *)pValue) = haldata->odmpriv.SupportAbility;
 		break;
-	case HW_VAR_MAX_RX_AMPDU_FACTOR:
-		*((u32 *)pValue) = MAX_AMPDU_FACTOR_64K;
-		break;
 	case HW_DEF_RA_INFO_DUMP:
 		{
 			u8 entry_id = *((u8 *)pValue);

drivers/staging/r8188eu/include/hal_intf.h

@@ -77,7 +77,6 @@ enum hal_def_variable {
 	HAL_DEF_CURRENT_ANTENNA,
 	HAL_DEF_DBG_DUMP_RXPKT,/* for dbg */
 	HAL_DEF_DBG_DM_FUNC,/* for dbg */
-	HW_VAR_MAX_RX_AMPDU_FACTOR,
 	HW_DEF_RA_INFO_DUMP,
 	HAL_DEF_DBG_DUMP_TXPKT,
 };

drivers/staging/r8188eu/include/wifi.h

@@ -569,12 +569,7 @@ struct ADDBA_request {
 	__le16	BA_starting_seqctrl;
 } __packed;
 
-enum ht_cap_ampdu_factor {
-	MAX_AMPDU_FACTOR_8K	= 0,
-	MAX_AMPDU_FACTOR_16K	= 1,
-	MAX_AMPDU_FACTOR_32K	= 2,
-	MAX_AMPDU_FACTOR_64K	= 3,
-};
+#define MAX_AMPDU_FACTOR_64K	3
 
 /* Spatial Multiplexing Power Save Modes */
 #define WLAN_HT_CAP_SM_PS_STATIC	0