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[79.22.100.164]) by smtp.gmail.com with ESMTPSA id y10sm4579786eda.47.2021.08.28.03.18.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 28 Aug 2021 03:18:31 -0700 (PDT) From: "Fabio M. De Francesco" To: Greg Kroah-Hartman , Larry Finger , Phillip Potter , Martin Kaiser , Michael Straube , linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Pavel Skripkin Subject: Re: [PATCH v3] staging: r8188eu: Remove _enter/_exit_critical_mutex() Date: Sat, 28 Aug 2021 12:18:29 +0200 Message-ID: <3027220.c38WcS0Ceb@localhost.localdomain> In-Reply-To: <03d5fd25-7694-18ee-9e2f-7b4057117197@gmail.com> References: <20210819221241.31987-1-fmdefrancesco@gmail.com> <03d5fd25-7694-18ee-9e2f-7b4057117197@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="utf-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 > > Tested-by: Pavel Skripkin > Reviewed-by: Pavel Skripkin > > 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