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([2a00:1370:814d:99a9:a10:76ff:fe69:21b6]) by smtp.googlemail.com with ESMTPSA id x27sm1003125lfn.95.2021.03.26.15.47.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 26 Mar 2021 15:47:13 -0700 (PDT) Subject: Re: [PATCH v5 01/21] gpu: host1x: Use different lock classes for each client To: Mikko Perttunen , Mikko Perttunen , Thierry Reding Cc: jonathanh@nvidia.com, airlied@linux.ie, daniel@ffwll.ch, linux-tegra@vger.kernel.org, dri-devel@lists.freedesktop.org, talho@nvidia.com, bhuntsman@nvidia.com References: <20210111130019.3515669-1-mperttunen@nvidia.com> <20210111130019.3515669-2-mperttunen@nvidia.com> <6615105f-ccf1-7833-512c-090817c47952@gmail.com> <645366c2-c500-efcc-f44c-b933f6f470c4@nvidia.com> <0fb1b458-66bb-c9d8-04c7-174165b39811@kapsi.fi> <222f5544-6710-c931-5992-7ac11e440042@gmail.com> <48367008-1786-6cb6-15a0-03b526f53fe9@kapsi.fi> From: Dmitry Osipenko Message-ID: Date: Sat, 27 Mar 2021 01:47:12 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.8.1 MIME-Version: 1.0 In-Reply-To: <48367008-1786-6cb6-15a0-03b526f53fe9@kapsi.fi> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-tegra@vger.kernel.org 26.03.2021 22:10, Mikko Perttunen пишет: > On 3/26/21 8:31 PM, Dmitry Osipenko wrote: >> 26.03.2021 17:54, Mikko Perttunen пишет: >>> >>> Lockdep doesn't seem to be liking dev_name() for the name, and I think >>> allocating a string for this purpose seems a bit overkill, so I'll keep >>> the lock name as is if there are no objections. >> >> What does "liking" mean? >> > > kernel/locking/lockdep.c:894 (on my local tree): > >                        WARN_ON_ONCE(class->name != lock->name && >                                      lock->key != > &__lockdep_no_validate__); Alright, I see now that lockdep requires to use the same name.