From: Pavel Skripkin <paskripkin@gmail.com>
To: Greg KH <gregkh@linuxfoundation.org>
Cc: "Fabio M. De Francesco" <fmdefrancesco@gmail.com>,
Larry.Finger@lwfinger.net, phil@philpotter.co.uk,
straube.linux@gmail.com, linux-staging@lists.linux.dev,
linux-kernel@vger.kernel.org, Martin Kaiser <martin@kaiser.cx>
Subject: Re: [PATCH RFC 0/3] staging: r8188eu: avoid uninit value bugs
Date: Sun, 22 Aug 2021 15:50:35 +0300 [thread overview]
Message-ID: <e5d189b7-15b2-8cc3-1e84-021dc5ab51af@gmail.com> (raw)
In-Reply-To: <YSJFhmTs74PUyo8b@kroah.com>
On 8/22/21 3:39 PM, Greg KH wrote:
>>
>> Yes, but _rtw_read*() == 0 indicates 2 states:
>>
>> 1. Error on transfer side
>> 2. Actual register value is 0
>
> That's not a good design, it should be fixed. Note there is the new
> usb_control_msg_recv() function which should probably be used instead
> here, to prevent this problem from happening.
>
Thank you, Greg, for confirmation. That's was the point why I started to
write this series :)
I think, usb_control_msg_recv() won't help us with this problem, since
all rtw_read*() functions return an unsigned value now. In future, when
driver code will be fixed (ex: a lot of void function, which can fail
and leave passed pointer uninitialized) we can move to new usb API and
then move driver out of staging :)
With regards,
Pavel Skripkin
next prev parent reply other threads:[~2021-08-22 12:50 UTC|newest]
Thread overview: 140+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-20 17:07 [PATCH RFC 0/3] staging: r8188eu: avoid uninit value bugs Pavel Skripkin
2021-08-20 17:07 ` [PATCH RFC 1/3] staging: r8188eu: add proper rtw_read* error handling Pavel Skripkin
2021-08-20 20:54 ` kernel test robot
2021-08-20 21:50 ` Pavel Skripkin
2021-08-20 23:41 ` Phillip Potter
2021-08-20 23:41 ` Phillip Potter
2021-08-21 5:55 ` Fabio M. De Francesco
2021-08-21 10:35 ` Pavel Skripkin
2021-08-21 12:11 ` Fabio M. De Francesco
2021-08-20 17:07 ` [PATCH RFC 2/3] staging: r8188eu: add error handling to ReadFuse Pavel Skripkin
2021-08-20 23:51 ` Phillip Potter
2021-08-20 23:51 ` Phillip Potter
2021-08-21 3:59 ` Fabio M. De Francesco
2021-08-20 17:07 ` [PATCH RFC 3/3] staging: r8188eu: add error argument to read_macreg Pavel Skripkin
2021-08-20 23:18 ` Phillip Potter
2021-08-20 23:18 ` Phillip Potter
2021-08-21 10:38 ` Pavel Skripkin
2021-08-20 23:12 ` [PATCH RFC 0/3] staging: r8188eu: avoid uninit value bugs Phillip Potter
2021-08-20 23:12 ` Phillip Potter
2021-08-21 10:42 ` Pavel Skripkin
2021-08-22 9:53 ` Fabio M. De Francesco
2021-08-22 10:09 ` Pavel Skripkin
2021-08-22 10:59 ` Fabio M. De Francesco
2021-08-22 11:34 ` Fabio M. De Francesco
2021-08-22 12:10 ` Pavel Skripkin
2021-08-22 12:39 ` Greg KH
2021-08-22 12:50 ` Pavel Skripkin [this message]
2021-08-22 13:06 ` Greg KH
2021-08-22 13:21 ` Fabio M. De Francesco
2021-08-22 13:30 ` Greg KH
2021-08-22 13:31 ` Pavel Skripkin
2021-08-22 14:35 ` [PATCH RFC v2 0/6] " Pavel Skripkin
2021-08-22 14:35 ` [PATCH RFC v2 1/6] staging: r8188eu: remove {read,write}_macreg Pavel Skripkin
2021-08-22 14:35 ` [PATCH RFC v2 2/6] staging: r8188eu: add helper macro for printing registers Pavel Skripkin
2021-08-22 14:35 ` [PATCH RFC v2 3/6] staging: r8188eu: add error handling of rtw_read8 Pavel Skripkin
2021-08-22 16:49 ` kernel test robot
2021-08-22 14:35 ` [PATCH RFC v2 4/6] staging: r8188eu: add error handling of rtw_read16 Pavel Skripkin
2021-08-22 14:36 ` [PATCH RFC v2 5/6] staging: r8188eu: add error handling of rtw_read32 Pavel Skripkin
2021-08-23 23:33 ` Phillip Potter
2021-08-23 23:33 ` Phillip Potter
2021-08-24 0:10 ` Fabio M. De Francesco
2021-08-24 6:40 ` Pavel Skripkin
2021-08-24 8:38 ` Fabio M. De Francesco
2021-08-24 8:47 ` Pavel Skripkin
2021-08-24 8:53 ` Pavel Skripkin
2021-08-24 9:46 ` Fabio M. De Francesco
2021-08-24 22:10 ` Phillip Potter
2021-08-24 22:10 ` Phillip Potter
2021-08-24 22:07 ` Phillip Potter
2021-08-24 22:07 ` Phillip Potter
2021-08-24 6:53 ` Pavel Skripkin
2021-08-24 7:25 ` [PATCH v3 0/6] staging: r8188eu: avoid uninit value bugs Pavel Skripkin
2021-08-24 7:27 ` [PATCH v3 1/6] staging: r8188eu: remove {read,write}_macreg Pavel Skripkin
2021-08-26 10:39 ` Greg KH
2021-08-26 10:40 ` Greg KH
2021-08-24 7:27 ` [PATCH v3 2/6] staging: r8188eu: add helper macro for printing registers Pavel Skripkin
2021-08-26 10:37 ` Greg KH
2021-08-24 7:27 ` [PATCH v3 3/6] staging: r8188eu: add error handling of rtw_read8 Pavel Skripkin
2021-08-25 12:05 ` kernel test robot
2021-08-25 12:05 ` kernel test robot
2021-08-25 12:17 ` Pavel Skripkin
2021-08-25 12:17 ` Pavel Skripkin
2021-08-25 12:51 ` Dan Carpenter
2021-08-25 12:51 ` Dan Carpenter
2021-08-25 13:02 ` Pavel Skripkin
2021-08-25 13:02 ` Pavel Skripkin
2021-08-25 13:34 ` Dan Carpenter
2021-08-25 13:34 ` Dan Carpenter
2021-08-25 13:44 ` Pavel Skripkin
2021-08-25 13:44 ` Pavel Skripkin
2021-08-25 17:11 ` Nick Desaulniers
2021-08-25 17:11 ` Nick Desaulniers
2021-08-25 17:11 ` Nick Desaulniers
2021-08-26 11:08 ` Dan Carpenter
2021-08-26 11:08 ` Dan Carpenter
2021-08-25 23:45 ` Fabio M. De Francesco
2021-08-26 5:13 ` Pavel Skripkin
2021-08-26 8:21 ` David Laight
2021-08-26 8:27 ` Pavel Skripkin
2021-08-26 10:19 ` David Laight
2021-08-26 11:21 ` Dan Carpenter
2021-08-27 8:14 ` David Laight
2021-08-27 8:22 ` Pavel Skripkin
2021-08-27 9:07 ` Dan Carpenter
2021-08-27 9:16 ` Pavel Skripkin
2021-08-27 9:23 ` Dan Carpenter
2021-08-30 11:21 ` kernel test robot
2021-08-30 11:21 ` kernel test robot
2021-08-24 7:27 ` [PATCH v3 4/6] staging: r8188eu: add error handling of rtw_read16 Pavel Skripkin
2021-08-25 4:35 ` Fabio M. De Francesco
2021-08-25 8:22 ` Pavel Skripkin
2021-08-25 9:48 ` Fabio M. De Francesco
2021-08-25 9:55 ` Pavel Skripkin
2021-08-25 10:06 ` Dan Carpenter
2021-08-25 10:13 ` Pavel Skripkin
2021-08-25 10:38 ` Dan Carpenter
2021-08-25 10:41 ` Pavel Skripkin
2021-08-25 11:06 ` Fabio M. De Francesco
2021-08-25 11:11 ` Fabio M. De Francesco
2021-08-25 11:31 ` Dan Carpenter
2021-08-25 12:11 ` Fabio M. De Francesco
2021-08-25 10:51 ` Fabio M. De Francesco
2021-08-26 10:50 ` Greg KH
2021-08-26 10:58 ` Pavel Skripkin
2021-08-24 7:27 ` [PATCH v3 5/6] staging: r8188eu: add error handling of rtw_read32 Pavel Skripkin
2021-08-25 4:40 ` Fabio M. De Francesco
2021-08-26 8:51 ` David Laight
2021-08-26 9:22 ` Pavel Skripkin
2021-08-26 9:27 ` Pavel Skripkin
2021-08-26 10:22 ` David Laight
2021-08-26 10:55 ` Pavel Skripkin
2021-08-26 10:59 ` David Laight
2021-08-26 20:03 ` Pavel Skripkin
2021-08-27 7:12 ` gregkh
2021-08-27 7:16 ` Pavel Skripkin
2021-08-24 7:27 ` [PATCH v3 6/6] staging: r8188eu: make ReadEFuse return an int Pavel Skripkin
2021-08-25 10:13 ` [PATCH v3 0/6] staging: r8188eu: avoid uninit value bugs Fabio M. De Francesco
2021-08-27 7:49 ` Kari Argillander
2021-08-27 7:52 ` Pavel Skripkin
2021-08-24 6:58 ` [PATCH RFC v2 5/6] staging: r8188eu: add error handling of rtw_read32 Dan Carpenter
2021-08-24 7:01 ` Pavel Skripkin
2021-08-24 15:07 ` Fabio M. De Francesco
2021-08-22 14:36 ` [PATCH RFC v2 6/6] staging: r8188eu: make ReadEFuse return an int Pavel Skripkin
2021-08-22 15:30 ` [PATCH RFC v2 0/6] staging: r8188eu: avoid uninit value bugs Pavel Skripkin
2021-08-22 16:05 ` Michael Straube
2021-08-22 16:26 ` Pavel Skripkin
2021-08-22 23:52 ` Phillip Potter
2021-08-22 23:52 ` Phillip Potter
2021-08-22 17:36 ` Fabio M. De Francesco
2021-08-22 17:38 ` Pavel Skripkin
2021-08-22 20:06 ` Fabio M. De Francesco
2021-08-22 20:19 ` Pavel Skripkin
2021-08-23 0:12 ` Phillip Potter
2021-08-23 0:12 ` Phillip Potter
2021-08-23 6:38 ` Pavel Skripkin
2021-08-23 6:44 ` Pavel Skripkin
2021-08-22 16:03 ` [PATCH RFC 0/3] " Fabio M. De Francesco
2021-08-22 16:15 ` Pavel Skripkin
2021-08-22 15:04 ` Phillip Potter
2021-08-22 15:04 ` Phillip Potter
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