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From: "Fabio M. De Francesco" <fmdefrancesco@gmail.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Larry Finger <Larry.Finger@lwfinger.net>,
	Phillip Potter <phil@philpotter.co.uk>,
	Martin Kaiser <martin@kaiser.cx>,
	Michael Straube <straube.linux@gmail.com>,
	linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org,
	Pavel Skripkin <paskripkin@gmail.com>
Subject: Re: [PATCH v3] staging: r8188eu: Remove _enter/_exit_critical_mutex()
Date: Sat, 28 Aug 2021 12:18:29 +0200	[thread overview]
Message-ID: <3027220.c38WcS0Ceb@localhost.localdomain> (raw)
In-Reply-To: <03d5fd25-7694-18ee-9e2f-7b4057117197@gmail.com>

On Friday, August 27, 2021 4:32:22 PM CEST Pavel Skripkin wrote:
> On 8/20/21 1:12 AM, Fabio M. De Francesco wrote:
> > Remove _enter_critical_mutex() and _exit_critical_mutex(). They are
> > unnecessary wrappers, respectively to mutex_lock_interruptible() and
> > to mutex_unlock(). They also have an odd interface that takes an unused
> > argument named pirqL of type unsigned long.
> > The original code enters the critical section if the mutex API is
> > interrupted while waiting to acquire the lock; therefore it could lead
> > to a race condition. Use mutex_lock() because it is uninterruptible and
> > so avoid that above-mentioned potential race condition.
> > 
> > Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
> 
> Tested-by: Pavel Skripkin <paskripkin@gmail.com>
> Reviewed-by: Pavel Skripkin <paskripkin@gmail.com>
> 
> Thanks!
> 
> 
> With regards,
> Pavel Skripkin
> 
Hi Pavel,

Thanks very much for testing and reviewing my patch. As you know, Greg wanted
it tested but I couldn't do that. I'll add your tags and send a v4 and I guess that now
Greg will easily apply.

Great help from you, thanks again :)

Regards,

Fabio





      reply	other threads:[~2021-08-28 10:18 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-19 22:12 [PATCH v3] staging: r8188eu: Remove _enter/_exit_critical_mutex() Fabio M. De Francesco
2021-08-26 10:37 ` Greg Kroah-Hartman
2021-08-26 13:55   ` Fabio M. De Francesco
2021-08-26 14:04     ` Greg Kroah-Hartman
2021-08-27 14:32 ` Pavel Skripkin
2021-08-28 10:18   ` Fabio M. De Francesco [this message]

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