From: Pavel Skripkin <paskripkin@gmail.com>
To: "Fabio M. De Francesco" <fmdefrancesco@gmail.com>,
Larry Finger <Larry.Finger@lwfinger.net>,
Phillip Potter <phil@philpotter.co.uk>,
linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org,
David Laight <david.Laight@aculab.com>,
Dan Carpenter <dan.carpenter@oracle.com>,
Martin Kaiser <martin@kaiser.cx>
Subject: Re: [PATCH v9 16/16] staging: r8188eu: remove usb_vendor_req_mutex
Date: Thu, 23 Sep 2021 11:47:59 +0300 [thread overview]
Message-ID: <4434c136-6bfc-9a25-d0ba-f989c655fa69@gmail.com> (raw)
In-Reply-To: <dd99d40d-297e-8d27-dabe-d0e4c633d391@gmail.com>
On 9/22/21 16:21, Pavel Skripkin wrote:
> On 9/21/21 21:18, Fabio M. De Francesco wrote:
>> From: Pavel Skripkin <paskripkin@gmail.com>
>>
>> This mutex was used to protect shared buffer for USB requests. Since
>> buffer was removed in previous patch we can remove this mutex as well.
>>
>> Furthermore, because it was used to serialize the calls to the Core USB
>> API, we thoroughly tested the enabling of concurrent firing of USB requests
>> without the mutex and found no problems of any kind in common use cases.
>>
>> Co-developed-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
>> Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
>> Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
>
> Hi, Greg!
>
> If all is OK with previous 15 patches, please, do not take this one, it
> causes problems with connection... :)
>
> I don't understand what went wrong after v8, but anyway, this one should
> not be applied for now, since it's broken
>
>
> Thank you
>
>
Just to be clear: previous 15 patches _are_ tested and do not cause any
misbehavior or bugs.
I guess, the stack buffer maybe the problem here, since it's the only
change on this side since v8. I didn't have a chance to take a closer
look, but I will do it on weekends, I hope :)
With regards,
Pavel Skripkin
next prev parent reply other threads:[~2021-09-23 8:48 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-21 18:18 [PATCH v9 00/16] staging: r8188eu: shorten and simplify calls chains Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 01/16] staging: r8188eu: clean up symbols in usbctrl_vendorreq() Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 02/16] staging: r8188eu: reorder declarations " Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 03/16] staging: r8188eu: remove unnecessary test " Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 04/16] staging: r8188eu: reorder comments " Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 05/16] staging: r8188eu: remove a comment from usbctrl_vendorreq() Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 06/16] staging: r8188eu: rename symbols in rtw_read*() and rtw_write*() Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 07/16] staging: r8188eu: remove casts from rtw_{read,write}*() Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 08/16] staging: r8188eu: change the type of a variable in rtw_write16() Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 09/16] staging: r8188eu: remove an buffer from rtw_writeN() Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 10/16] staging: r8188eu: remove a bitwise AND " Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 11/16] staging: r8188eu: change the type of a variable in rtw_read16() Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 12/16] staging: r8188eu: Remove a test from usbctrl_vendorreq() Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 13/16] staging: r8188eu: call new usb_read() from rtw_read{8,16,32}() Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 14/16] staging: r8188eu: call new usb_write() from rtw_write{8,16,32,N}() Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 15/16] staging: r8188eu: remove shared buffer for USB requests Fabio M. De Francesco
2021-09-21 18:18 ` [PATCH v9 16/16] staging: r8188eu: remove usb_vendor_req_mutex Fabio M. De Francesco
2021-09-22 13:21 ` Pavel Skripkin
2021-09-23 8:47 ` Pavel Skripkin [this message]
2021-09-23 10:12 ` Pavel Skripkin
2021-09-23 11:07 ` Greg KH
2021-09-23 11:13 ` Pavel Skripkin
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