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From: "Fabio M. De Francesco" <fmdefrancesco@gmail.com>
To: Larry Finger <Larry.Finger@lwfinger.net>,
	Phillip Potter <phil@philpotter.co.uk>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org,
	Pavel Skripkin <paskripkin@gmail.com>
Cc: "Fabio M. De Francesco" <fmdefrancesco@gmail.com>
Subject: [PATCH 1/2] staging: r8188eu: Use usb_control_msg_recv/send() in usbctrl_vendorreq()
Date: Tue, 24 Aug 2021 00:37:50 +0200	[thread overview]
Message-ID: <20210823223751.25104-2-fmdefrancesco@gmail.com> (raw)
In-Reply-To: <20210823223751.25104-1-fmdefrancesco@gmail.com>

Replace usb_control_msg() with the new usb_control_msg_recv() and
usb_control_msg_send() API of USB Core in usbctrl_vendorreq().

Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
---

Thanks to Pavel Skripkin <paskripkin@gmail.com> for his review of the
RFC patch.
 
drivers/staging/r8188eu/hal/usb_ops_linux.c | 25 ++++++++++-----------
1 file changed, 12 insertions(+), 13 deletions(-)

diff --git a/drivers/staging/r8188eu/hal/usb_ops_linux.c b/drivers/staging/r8188eu/hal/usb_ops_linux.c
index a93d5cfe4635..6f51660b967a 100644
--- a/drivers/staging/r8188eu/hal/usb_ops_linux.c
+++ b/drivers/staging/r8188eu/hal/usb_ops_linux.c
@@ -15,9 +15,8 @@ static int usbctrl_vendorreq(struct intf_hdl *pintfhdl, u16 value, void *pdata,
 	struct adapter	*adapt = pintfhdl->padapter;
 	struct dvobj_priv  *dvobjpriv = adapter_to_dvobj(adapt);
 	struct usb_device *udev = dvobjpriv->pusbdev;
-	unsigned int pipe;
+	u8 pipe;
 	int status = 0;
-	u8 reqtype;
 	u8 *pIo_buf;
 	int vendorreq_times = 0;
 
@@ -44,22 +43,22 @@ static int usbctrl_vendorreq(struct intf_hdl *pintfhdl, u16 value, void *pdata,
 	}
 
 	while (++vendorreq_times <= MAX_USBCTRL_VENDORREQ_TIMES) {
-		memset(pIo_buf, 0, len);
-
 		if (requesttype == 0x01) {
-			pipe = usb_rcvctrlpipe(udev, 0);/* read_in */
-			reqtype =  REALTEK_USB_VENQT_READ;
+			status = usb_control_msg_recv(udev, pipe, REALTEK_USB_VENQT_CMD_REQ,
+						      REALTEK_USB_VENQT_READ, value,
+						      REALTEK_USB_VENQT_CMD_IDX,
+						      pIo_buf, len, RTW_USB_CONTROL_MSG_TIMEOUT,
+						      GFP_KERNEL);
 		} else {
-			pipe = usb_sndctrlpipe(udev, 0);/* write_out */
-			reqtype =  REALTEK_USB_VENQT_WRITE;
 			memcpy(pIo_buf, pdata, len);
+			status = usb_control_msg_send(udev, pipe, REALTEK_USB_VENQT_CMD_REQ,
+						      REALTEK_USB_VENQT_WRITE, value,
+						      REALTEK_USB_VENQT_CMD_IDX,
+						      pIo_buf, len, RTW_USB_CONTROL_MSG_TIMEOUT,
+						      GFP_KERNEL);
 		}
 
-		status = usb_control_msg(udev, pipe, REALTEK_USB_VENQT_CMD_REQ,
-					 reqtype, value, REALTEK_USB_VENQT_CMD_IDX,
-					 pIo_buf, len, RTW_USB_CONTROL_MSG_TIMEOUT);
-
-		if (status == len) {   /*  Success this control transfer. */
+		if (!status) {   /*  Success this control transfer. */
 			rtw_reset_continual_urb_error(dvobjpriv);
 			if (requesttype == 0x01)
 				memcpy(pdata, pIo_buf,  len);
-- 
2.32.0


  reply	other threads:[~2021-08-23 22:38 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-23 22:37 [PATCH 0/2] staging: r8188eu: Use new usb_control_msg_recv/send() Fabio M. De Francesco
2021-08-23 22:37 ` Fabio M. De Francesco [this message]
2021-08-24  0:08   ` [PATCH 1/2] staging: r8188eu: Use usb_control_msg_recv/send() in usbctrl_vendorreq() Phillip Potter
2021-08-24  0:31     ` Fabio M. De Francesco
2021-08-24  1:38       ` Fabio M. De Francesco
2021-08-24  2:01         ` Fabio M. De Francesco
2021-08-24  5:44           ` Christophe JAILLET
2021-08-24 10:38             ` Fabio M. De Francesco
2021-08-24 17:03               ` Christophe JAILLET
2021-08-24 21:59         ` Phillip Potter
2021-08-24  8:13   ` Pavel Skripkin
2021-08-24  8:53     ` Fabio M. De Francesco
2021-08-24 11:07       ` Pavel Skripkin
2021-08-24 12:01         ` Fabio M. De Francesco
2021-08-24 12:09           ` Pavel Skripkin
2021-08-24 14:55             ` Fabio M. De Francesco
2021-08-23 22:37 ` [PATCH 2/2] staging: r8188eu: Make some clean-ups " Fabio M. De Francesco
2021-08-24  0:10   ` Phillip Potter

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