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AJvYcCVFOzfVEeledMQiRg8ALBHrTK5ETi5lKTZAPOQ5O6DUfuDZldhZJ4EOC76NKw2Zhy5wX34R15KPHQ==@kvack.org X-Gm-Message-State: AOJu0Yyl+RRN1hYaQfF37s1kXFO4v0yO2xPdRxV6GqQz2xTiJibAB1gK OiCzIl5FNTvNe6+FuqrJ7/dEFsXOGstF8SVgigi9C1IBjulud0wfWWXkUbe8uz/nSuyplB8WFuc maE6ZjwwA1E7MtGiQh/FTR7JpBnaf7PqJcIy2ipZz X-Gm-Gg: ASbGncuCr1S94zE5H3fr3THkuFU0dbCTGcycfxTXPZbl3ti/CSIXxbxbo/uFDGEisHc eUqMIeBn0P3i3aIPDsXIqwID4L+RLBvfep0fpOHpgymQ/9eGGf87Ew+McWQValCc7qUY3sE9IMl nuecxUqsGCr3mesQncWrW7wb183zG29g6zCHGXSlBoa5s2PTA1/2cj/YYr+44UT+oSV/wS6p+WJ G4YhZBKtdWobgJVDrRpYcsP210K8xEDeoGLU4tdzSR0qEmbY5OzA9v6Oj7DhU9aHnUy6naQEw== X-Google-Smtp-Source: AGHT+IG29GaBxwHWZQc2LB9NRpX+zT3/jUbD+9n9oxYqOMrPzqlyPGzUr1sjF/e6u05Vs4J0g5cc6rgCzdD1pfVFPDU= X-Received: by 2002:ac8:5914:0:b0:4b2:ecb6:e6dd with SMTP id d75a77b69052e-4f1a5e7b540mr854641cf.1.1765229469904; Mon, 08 Dec 2025 13:31:09 -0800 (PST) MIME-Version: 1.0 References: <20251204220957.360838-1-surenb@google.com> <202512061207.7zufoIcC-lkp@intel.com> In-Reply-To: <202512061207.7zufoIcC-lkp@intel.com> From: Suren Baghdasaryan Date: Tue, 9 Dec 2025 06:30:58 +0900 X-Gm-Features: AQt7F2pnkHbec3VF5ekmZv-cl7lVMbNag4cTqBp9jjapgjBroeJ40ilDtAS4xhQ Message-ID: Subject: Re: [PATCH 1/1] alloc_tag: skip rcu barrier on module unload if profiling was not enabled To: kernel test robot Cc: akpm@linux-foundation.org, oe-kbuild-all@lists.linux.dev, kent.overstreet@linux.dev, vbabka@suse.cz, harry.yoo@oracle.com, da.gomez@kernel.org, jonathanh@nvidia.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Stat-Signature: efnermfeu6593era65rhwyobhkb61di8 X-Rspam-User: X-Rspamd-Queue-Id: 39CE9140013 X-Rspamd-Server: rspam01 X-HE-Tag: 1765229471-282328 X-HE-Meta: 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 kuBMdtsd 8KjcBWIKYGNg/3Rk0gsUQrdXt2kkTdl/RFvan/4joskV5FliBEFo0XN8KxqvhCSzlKy5+CwrSyINrDyOgz/UxFxOaSAOqUK1gVfLLQOKHWVmKHyEk3EsYVzLo5KXd9Fljuq/UwV80oHRb5CdmLJ+7QZX7jdTucq3uoSRFcQsvUE84G3dzOgui5rVGS135VRyk2QZNeO09iLPwR71fqWwM56Q/lI3sE7nkrMmoWOg0WwPA3pLmS0FExHd4URp7B5aq8BbRYMgZ9n3owoO3UgmLklNP0Hn2q5nZ0VPMuTC2bNhSZrUR69BE04iGhERB+JukxZR9b9IbGXl1cpGzjsjYeEhc/dGSTrGicQJX8k73VWRYhqGjr5CzJQDxy//tNOeLJjIvLspxvBnwcW0= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sat, Dec 6, 2025 at 2:08=E2=80=AFPM kernel test robot wr= ote: > > Hi Suren, > > kernel test robot noticed the following build warnings: > > [auto build test WARNING on 3f43be96f919cc611dcb2a4e38dd464831f4513e] > > url: https://github.com/intel-lab-lkp/linux/commits/Suren-Baghdasaryan= /alloc_tag-skip-rcu-barrier-on-module-unload-if-profiling-was-not-enabled/2= 0251205-061310 > base: 3f43be96f919cc611dcb2a4e38dd464831f4513e > patch link: https://lore.kernel.org/r/20251204220957.360838-1-surenb%4= 0google.com > patch subject: [PATCH 1/1] alloc_tag: skip rcu barrier on module unload i= f profiling was not enabled > config: parisc-randconfig-002-20251206 (https://download.01.org/0day-ci/a= rchive/20251206/202512061207.7zufoIcC-lkp@intel.com/config) > compiler: hppa-linux-gcc (GCC) 15.1.0 > reproduce (this is a W=3D1 build): (https://download.01.org/0day-ci/archi= ve/20251206/202512061207.7zufoIcC-lkp@intel.com/reproduce) > > If you fix the issue in a separate patch/commit (i.e. not just a new vers= ion of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot > | Closes: https://lore.kernel.org/oe-kbuild-all/202512061207.7zufoIcC-lkp= @intel.com/ > > All warnings (new ones prefixed by >>): > > >> lib/codetag.c:37:13: warning: 'flush_rcu_on_module_unload' defined but= not used [-Wunused-variable] > 37 | static bool flush_rcu_on_module_unload; > | ^~~~~~~~~~~~~~~~~~~~~~~~~~ Thanks! I'll fix it and repost after Plumbers as the original issue seems to be resolved by Harry's patches and this optimization is not urgent anymore. > > > vim +/flush_rcu_on_module_unload +37 lib/codetag.c > > 34 > 35 static DEFINE_MUTEX(codetag_lock); > 36 static LIST_HEAD(codetag_types); > > 37 static bool flush_rcu_on_module_unload; > 38 > > -- > 0-DAY CI Kernel Test Service > https://github.com/intel/lkp-tests/wiki