staging: r8188eu: remove unneeded field pbuf

The field pbuf in struct recv_buf can be removed as it can be replaced
with pskb->data. Remove pbuf field.
Signed-off-by: Abdun Nihaal <abdun.nihaal@gmail.com>
Link: https://lore.kernel.org/r/080a9269b9381089e4dc9117f35d0a2d1d0c0259.1646321515.git.abdun.nihaal@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/hal/usb_ops_linux.c

@@ -437,11 +437,7 @@ u32 rtw_read_port(struct adapter *adapter, u8 *rmem)
 		tmpaddr = (size_t)precvbuf->pskb->data;
 		alignment = tmpaddr & (RECVBUFF_ALIGN_SZ - 1);
 		skb_reserve(precvbuf->pskb, (RECVBUFF_ALIGN_SZ - alignment));
-
-		precvbuf->pbuf = precvbuf->pskb->data;
 	} else { /* reuse skb */
-		precvbuf->pbuf = precvbuf->pskb->data;
-
 		precvbuf->reuse = false;
 	}
 
@@ -453,7 +449,7 @@ u32 rtw_read_port(struct adapter *adapter, u8 *rmem)
 	pipe = usb_rcvbulkpipe(pusbd, pdvobj->RtInPipe);
 
 	usb_fill_bulk_urb(purb, pusbd, pipe,
-			  precvbuf->pbuf,
+			  precvbuf->pskb->data,
 			  MAX_RECVBUF_SZ,
 			  usb_read_port_complete,
 			  precvbuf);/* context is precvbuf */

drivers/staging/r8188eu/include/rtw_recv.h

@@ -208,7 +208,6 @@ struct sta_recv_priv {
 
 struct recv_buf {
 	struct adapter *adapter;
-	u8	*pbuf;
 	u8	*pallocated_buf;
 	struct urb *purb;
 	dma_addr_t dma_transfer_addr;	/* (in) dma addr for transfer_buffer */

drivers/staging/r8188eu/os_dep/recv_linux.c

@@ -25,7 +25,6 @@ int rtw_os_recvbuf_resource_alloc(struct adapter *padapter,
 	precvbuf->pskb = NULL;
 	precvbuf->reuse = false;
 	precvbuf->pallocated_buf = NULL;
-	precvbuf->pbuf = NULL;
 	return res;
 }