Re: [PATCH 2/2] staging: r8188eu: ctrl vendor req index is not used

From: Phillip Potter
Date: Wed Aug 18 2021 - 16:34:42 EST

On Wed, 18 Aug 2021 at 21:01, Martin Kaiser <martin@xxxxxxxxx> wrote:
>
> The index for r8188eu's vendor-specific control requests is not used.
> Remove the index parameter from usbctrl_vendorreq and pass index 0 to
> usb_control_msg.
>
> This patch is an adaptation of commit 3d0be94f62fd ("staging: rtl8188eu:
> ctrl vendor req index is not used") for the new r8188eu driver.
>
> Signed-off-by: Martin Kaiser <martin@xxxxxxxxx>
> ---
> drivers/staging/r8188eu/hal/usb_ops_linux.c | 33 +++++++--------------
> 1 file changed, 10 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/staging/r8188eu/hal/usb_ops_linux.c b/drivers/staging/r8188eu/hal/usb_ops_linux.c
> index 2583e3a941fd..953fa05dc30c 100644
> --- a/drivers/staging/r8188eu/hal/usb_ops_linux.c
> +++ b/drivers/staging/r8188eu/hal/usb_ops_linux.c
> @@ -10,7 +10,7 @@
> #include "../include/recv_osdep.h"
> #include "../include/rtl8188e_hal.h"
>
> -static int usbctrl_vendorreq(struct intf_hdl *pintfhdl, u16 value, u16 index, void *pdata, u16 len, u8 requesttype)
> +static int usbctrl_vendorreq(struct intf_hdl *pintfhdl, u16 value, void *pdata, u16 len, u8 requesttype)
> {
> struct adapter *adapt = pintfhdl->padapter;
> struct dvobj_priv *dvobjpriv = adapter_to_dvobj(adapt);
> @@ -56,7 +56,8 @@ static int usbctrl_vendorreq(struct intf_hdl *pintfhdl, u16 value, u16 index, vo
> }
>
> status = usb_control_msg(udev, pipe, REALTEK_USB_VENQT_CMD_REQ,
> - reqtype, value, index, pIo_buf, len, RTW_USB_CONTROL_MSG_TIMEOUT);
> + reqtype, value, REALTEK_USB_VENQT_CMD_IDX,
> + pIo_buf, len, RTW_USB_CONTROL_MSG_TIMEOUT);
>
> if (status == len) { /* Success this control transfer. */
> rtw_reset_continual_urb_error(dvobjpriv);
> @@ -104,19 +105,17 @@ static u8 usb_read8(struct intf_hdl *pintfhdl, u32 addr)
> {
> u8 requesttype;
> u16 wvalue;
> - u16 index;
> u16 len;
> u8 data = 0;
>
>
>
> requesttype = 0x01;/* read_in */
> - index = 0;/* n/a */
>
> wvalue = (u16)(addr & 0x0000ffff);
> len = 1;
>
> - usbctrl_vendorreq(pintfhdl, wvalue, index, &data, len, requesttype);
> + usbctrl_vendorreq(pintfhdl, wvalue, &data, len, requesttype);
>
>
>
> @@ -128,15 +127,13 @@ static u16 usb_read16(struct intf_hdl *pintfhdl, u32 addr)
> {
> u8 requesttype;
> u16 wvalue;
> - u16 index;
> u16 len;
> __le32 data;
>
> requesttype = 0x01;/* read_in */
> - index = 0;/* n/a */
> wvalue = (u16)(addr & 0x0000ffff);
> len = 2;
> - usbctrl_vendorreq(pintfhdl, wvalue, index, &data, len, requesttype);
> + usbctrl_vendorreq(pintfhdl, wvalue, &data, len, requesttype);
>
> return (u16)(le32_to_cpu(data) & 0xffff);
> }
> @@ -145,17 +142,15 @@ static u32 usb_read32(struct intf_hdl *pintfhdl, u32 addr)
> {
> u8 requesttype;
> u16 wvalue;
> - u16 index;
> u16 len;
> __le32 data;
>
> requesttype = 0x01;/* read_in */
> - index = 0;/* n/a */
>
> wvalue = (u16)(addr & 0x0000ffff);
> len = 4;
>
> - usbctrl_vendorreq(pintfhdl, wvalue, index, &data, len, requesttype);
> + usbctrl_vendorreq(pintfhdl, wvalue, &data, len, requesttype);
>
> return le32_to_cpu(data);
> }
> @@ -164,18 +159,16 @@ static int usb_write8(struct intf_hdl *pintfhdl, u32 addr, u8 val)
> {
> u8 requesttype;
> u16 wvalue;
> - u16 index;
> u16 len;
> u8 data;
> int ret;
>
>
> requesttype = 0x00;/* write_out */
> - index = 0;/* n/a */
> wvalue = (u16)(addr & 0x0000ffff);
> len = 1;
> data = val;
> - ret = usbctrl_vendorreq(pintfhdl, wvalue, index, &data, len, requesttype);
> + ret = usbctrl_vendorreq(pintfhdl, wvalue, &data, len, requesttype);
>
> return ret;
> }
> @@ -184,7 +177,6 @@ static int usb_write16(struct intf_hdl *pintfhdl, u32 addr, u16 val)
> {
> u8 requesttype;
> u16 wvalue;
> - u16 index;
> u16 len;
> __le32 data;
> int ret;
> @@ -192,14 +184,13 @@ static int usb_write16(struct intf_hdl *pintfhdl, u32 addr, u16 val)
>
>
> requesttype = 0x00;/* write_out */
> - index = 0;/* n/a */
>
> wvalue = (u16)(addr & 0x0000ffff);
> len = 2;
>
> data = cpu_to_le32(val & 0x0000ffff);
>
> - ret = usbctrl_vendorreq(pintfhdl, wvalue, index, &data, len, requesttype);
> + ret = usbctrl_vendorreq(pintfhdl, wvalue, &data, len, requesttype);
>
>
>
> @@ -210,7 +201,6 @@ static int usb_write32(struct intf_hdl *pintfhdl, u32 addr, u32 val)
> {
> u8 requesttype;
> u16 wvalue;
> - u16 index;
> u16 len;
> __le32 data;
> int ret;
> @@ -218,13 +208,12 @@ static int usb_write32(struct intf_hdl *pintfhdl, u32 addr, u32 val)
>
>
> requesttype = 0x00;/* write_out */
> - index = 0;/* n/a */
>
> wvalue = (u16)(addr & 0x0000ffff);
> len = 4;
> data = cpu_to_le32(val);
>
> - ret = usbctrl_vendorreq(pintfhdl, wvalue, index, &data, len, requesttype);
> + ret = usbctrl_vendorreq(pintfhdl, wvalue, &data, len, requesttype);
>
>
>
> @@ -235,7 +224,6 @@ static int usb_writeN(struct intf_hdl *pintfhdl, u32 addr, u32 length, u8 *pdata
> {
> u8 requesttype;
> u16 wvalue;
> - u16 index;
> u16 len;
> u8 buf[VENDOR_CMD_MAX_DATA_LEN] = {0};
> int ret;
> @@ -243,13 +231,12 @@ static int usb_writeN(struct intf_hdl *pintfhdl, u32 addr, u32 length, u8 *pdata
>
>
> requesttype = 0x00;/* write_out */
> - index = 0;/* n/a */
>
> wvalue = (u16)(addr & 0x0000ffff);
> len = length;
> memcpy(buf, pdata, len);
>
> - ret = usbctrl_vendorreq(pintfhdl, wvalue, index, buf, len, requesttype);
> + ret = usbctrl_vendorreq(pintfhdl, wvalue, buf, len, requesttype);
>
> return ret;
> }
> --
> 2.20.1
>

Looks good.

Acked-by: Phillip Potter <phil@xxxxxxxxxxxxxxxx>

Regards,
Phil