staging: r8188eu: remove UsbRxAggMode from struct hal_data_8188e

UsbRxAggMode in struct hal_data_8188e is set to USB_RX_AGG_DMA and
never changed. Remove UsbRxAggMode from the hal_data_8188e structure
and remove related dead code.
Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220201084259.7497-8-straube.linux@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/hal/usb_halinit.c

@@ -53,7 +53,6 @@ void rtl8188eu_interface_configure(struct adapter *adapt)
 	else
 		haldata->UsbBulkOutSize = USB_FULL_SPEED_BULK_SIZE;/* 64 bytes */
 
-	haldata->UsbRxAggMode		= USB_RX_AGG_DMA;/*  USB_RX_AGG_DMA; */
 	haldata->UsbRxAggBlockCount	= 8; /* unit : 512b */
 	haldata->UsbRxAggBlockTimeout	= 0x6;
 	haldata->UsbRxAggPageCount	= 48; /* uint :128 b 0x0A;	10 = MAX_RX_DMA_BUFFER_SIZE/2/haldata->UsbBulkOutSize */
@@ -443,50 +442,15 @@ usb_AggSettingRxUpdate(
 	valueDMA = rtw_read8(Adapter, REG_TRXDMA_CTRL);
 	valueUSB = rtw_read8(Adapter, REG_USB_SPECIAL_OPTION);
 
-	switch (haldata->UsbRxAggMode) {
-	case USB_RX_AGG_DMA:
-		valueDMA |= RXDMA_AGG_EN;
-		valueUSB &= ~USB_AGG_EN;
-		break;
-	case USB_RX_AGG_USB:
-		valueDMA &= ~RXDMA_AGG_EN;
-		valueUSB |= USB_AGG_EN;
-		break;
-	case USB_RX_AGG_MIX:
-		valueDMA |= RXDMA_AGG_EN;
-		valueUSB |= USB_AGG_EN;
-		break;
-	case USB_RX_AGG_DISABLE:
-	default:
-		valueDMA &= ~RXDMA_AGG_EN;
-		valueUSB &= ~USB_AGG_EN;
-		break;
-	}
+	valueDMA |= RXDMA_AGG_EN;
+	valueUSB &= ~USB_AGG_EN;
 
 	rtw_write8(Adapter, REG_TRXDMA_CTRL, valueDMA);
 	rtw_write8(Adapter, REG_USB_SPECIAL_OPTION, valueUSB);
 
-	switch (haldata->UsbRxAggMode) {
-	case USB_RX_AGG_DMA:
-		rtw_write8(Adapter, REG_RXDMA_AGG_PG_TH, haldata->UsbRxAggPageCount);
-		rtw_write8(Adapter, REG_RXDMA_AGG_PG_TH + 1, haldata->UsbRxAggPageTimeout);
-		break;
-	case USB_RX_AGG_USB:
-		rtw_write8(Adapter, REG_USB_AGG_TH, haldata->UsbRxAggBlockCount);
-		rtw_write8(Adapter, REG_USB_AGG_TO, haldata->UsbRxAggBlockTimeout);
-		break;
-	case USB_RX_AGG_MIX:
-		rtw_write8(Adapter, REG_RXDMA_AGG_PG_TH, haldata->UsbRxAggPageCount);
-		rtw_write8(Adapter, REG_RXDMA_AGG_PG_TH + 1, (haldata->UsbRxAggPageTimeout & 0x1F));/* 0x280[12:8] */
-		rtw_write8(Adapter, REG_USB_AGG_TH, haldata->UsbRxAggBlockCount);
-		rtw_write8(Adapter, REG_USB_AGG_TO, haldata->UsbRxAggBlockTimeout);
-		break;
-	case USB_RX_AGG_DISABLE:
-	default:
-		/*  TODO: */
-		break;
-	}
-}	/*  usb_AggSettingRxUpdate */
+	rtw_write8(Adapter, REG_RXDMA_AGG_PG_TH, haldata->UsbRxAggPageCount);
+	rtw_write8(Adapter, REG_RXDMA_AGG_PG_TH + 1, haldata->UsbRxAggPageTimeout);
+}
 
 static void InitUsbAggregationSetting(struct adapter *Adapter)
 {

drivers/staging/r8188eu/hal/usb_ops_linux.c

@@ -295,18 +295,8 @@ static int recvbuf2recvframe(struct adapter *adapt, struct sk_buff *pskb)
 
 		recvframe_put(precvframe, skb_len);
 
-		switch (haldata->UsbRxAggMode) {
-		case USB_RX_AGG_DMA:
-		case USB_RX_AGG_MIX:
-			pkt_offset = (u16)_RND128(pkt_offset);
-			break;
-		case USB_RX_AGG_USB:
-			pkt_offset = (u16)_RND4(pkt_offset);
-			break;
-		case USB_RX_AGG_DISABLE:
-		default:
-			break;
-		}
+		pkt_offset = (u16)_RND128(pkt_offset);
+
 		if (pattrib->pkt_rpt_type == NORMAL_RX) { /* Normal rx packet */
 			if (pattrib->physt)
 				update_recvframe_phyinfo_88e(precvframe, (struct phy_stat *)pphy_status);

drivers/staging/r8188eu/include/rtl8188e_hal.h

@@ -72,13 +72,6 @@ struct rt_firmware_hdr {
 #define DRIVER_EARLY_INT_TIME		0x05
 #define BCN_DMA_ATIME_INT_TIME		0x02
 
-enum usb_rx_agg_mode {
-	USB_RX_AGG_DISABLE,
-	USB_RX_AGG_DMA,
-	USB_RX_AGG_USB,
-	USB_RX_AGG_MIX
-};
-
 #define MAX_RX_DMA_BUFFER_SIZE_88E				\
       0x2400 /* 9k for 88E nornal chip , MaxRxBuff=10k-max(TxReportSize(64*8),
 	      * WOLPattern(16*24)) */
@@ -213,7 +206,6 @@ struct hal_data_8188e {
 
 	u32	UsbBulkOutSize;
 
-	enum usb_rx_agg_mode UsbRxAggMode;
 	u8	UsbRxAggBlockCount;	/*  USB Block count. Block size is
 					 * 512-byte in high speed and 64-byte
 					 * in full speed */