linux-kernel - RE: [PATCH v3 3/3] staging: r8188eu: Shorten calls chain of rtw

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Message-ID: <5a359f20e80341c9910ecc6286eb0aec@AcuMS.aculab.com>
Date:   Tue, 7 Sep 2021 10:10:19 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     "'Fabio M. De Francesco'" <fmdefrancesco@...il.com>,
        Larry Finger <Larry.Finger@...inger.net>,
        Phillip Potter <phil@...lpotter.co.uk>,
        "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        Pavel Skripkin <paskripkin@...il.com>,
        "linux-staging@...ts.linux.dev" <linux-staging@...ts.linux.dev>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: RE: [PATCH v3 3/3] staging: r8188eu: Shorten calls chain of
 rtw_write8/16/32/N()

From: Fabio M. De Francesco
> Sent: 04 September 2021 23:01
>
> Shorten the calls chain of rtw_write8/16/32() down to the actual writes.
> For this purpose unify the four usb_write8/16/32/N() into the new
> usb_write(); make the latter parameterizable with 'size'; embed most of
> the code of usbctrl_vendorreq() into usb_write() and use in it the new
> usb_control_msg_send() API of USB Core.
> 
...
> diff --git a/drivers/staging/r8188eu/hal/usb_ops_linux.c b/drivers/staging/r8188eu/hal/usb_ops_linux.c
> index f9c4fd5a2c53..e31d1b1fdb12 100644
> --- a/drivers/staging/r8188eu/hal/usb_ops_linux.c
> +++ b/drivers/staging/r8188eu/hal/usb_ops_linux.c
> @@ -8,76 +8,51 @@
>  #include "../include/recv_osdep.h"
>  #include "../include/rtl8188e_hal.h"
> 
> -static int usbctrl_vendorreq(struct intf_hdl *pintfhdl, u16 value, void *pdata, u16 len, u8
> requesttype)
> +static int usb_read(struct intf_hdl *intfhdl, u32 addr, void *data, u8 size)
>  {
> -	struct adapter	*adapt = pintfhdl->padapter;
> -	struct dvobj_priv  *dvobjpriv = adapter_to_dvobj(adapt);
> +	u16 value = (u16)(addr & 0x0000ffff);
> +	struct adapter *adapt = intfhdl->padapter;
> +	struct dvobj_priv *dvobjpriv = adapter_to_dvobj(adapt);
>  	struct usb_device *udev = dvobjpriv->pusbdev;
> -	unsigned int pipe;
> -	int status = 0;
> -	u8 *pIo_buf;
> +	int status;
> +	u8 *io_buf;

Some of these changes are whitespace or renames.
They ought to be in a different patch.

I think you'll need 'reverse xmas tree' ordering as well.

	David

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