linux-kernel - [PATCH v4 00/18] staging: r8188eu: Shorten and simplify calls chain

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Date:   Mon, 13 Sep 2021 20:09:44 +0200
From:   "Fabio M. De Francesco" <fmdefrancesco@...il.com>
To:     Larry Finger <Larry.Finger@...inger.net>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        Michael Straube <straube.linux@...il.com>
Cc:     "Fabio M. De Francesco" <fmdefrancesco@...il.com>
Subject: [PATCH v4 00/18] staging: r8188eu: Shorten and simplify calls chain

io_ops abstraction is useless in this driver, since there is only one ops
registration. Without io_ops we can get rid of indirect calls mess and
shorten the calls chain.

Shorten the calls chain of rtw_read8/16/32() down to the actual reads.
For this purpose unify the three usb_read8/16/32 into the new
usb_read(); make the latter parameterizable with 'size'; embed most of
the code of usbctrl_vendorreq() into usb_read() and use in it the new
usb_control_msg_recv() API of USB Core.

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.

The code with the modifications was thoroughly tested by Pavel Skripkin
using a TP-Link TL-WN722N v2 / v3 [Realtek RTL8188EUS] and by Fabio M.
De Francesco using a ASUSTek Computer, Inc. Realtek 8188EUS [USB-N10 Nano].

Fabio M. De Francesco (4):
  staging: r8188eu: hal: Clean up usbctrl_vendorreq()
  staging: r8188eu: hal: Clean up rtw_read*() and rtw_write*()
  staging: r8188eu: Shorten calls chain of rtw_read8/16/32()
  staging: r8188eu: Shorten calls chain of rtw_write8/16/32/N()

Pavel Skripkin (14):
  staging: r8188eu: remove usb_{read,write}_mem
  staging: r8188eu: remove the helpers of rtw_read8()
  staging: r8188eu: remove the helpers of rtw_read16()
  staging: r8188eu: remove the helpers of rtw_read32()
  staging: r8188eu: remove the helpers of usb_write8
  staging: r8188eu: remove the helpers of usb_write16
  staging: r8188eu: remove the helpers of usb_write32
  staging: r8188eu: remove the helpers of usb_writeN
  staging: r8188eu: remove the helpers of usb_read_port
  staging: r8188eu: remove the helpers of usb_write_port
  staging: r8188eu: remove the helpers of usb_read_port_cancel
  staging: r8188eu: remove the helpers of usb_write_port_cancel
  staging: r8188eu: remove core/rtw_io.c
  staging: remove struct _io_ops

 drivers/staging/r8188eu/Makefile              |   1 -
 drivers/staging/r8188eu/core/rtw_io.c         | 299 ------------------
 drivers/staging/r8188eu/hal/usb_halinit.c     |   6 +-
 drivers/staging/r8188eu/hal/usb_ops_linux.c   | 250 ++++++++-------
 drivers/staging/r8188eu/include/rtw_io.h      |  89 +-----
 drivers/staging/r8188eu/include/usb_ops.h     |   2 -
 .../staging/r8188eu/include/usb_ops_linux.h   |   8 -
 drivers/staging/r8188eu/os_dep/usb_intf.c     |   8 +-
 .../staging/r8188eu/os_dep/usb_ops_linux.c    |  20 +-
 9 files changed, 157 insertions(+), 526 deletions(-)
 delete mode 100644 drivers/staging/r8188eu/core/rtw_io.c

-- 
2.33.0