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Tue, 05 May 2026 01:03:32 -0700 (PDT) Received: from [10.211.9.173] ([213.147.98.98]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48d14a16187sm12914705e9.9.2026.05.05.01.03.31 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 05 May 2026 01:03:31 -0700 (PDT) Message-ID: <1f1e6ef7-f353-4d4c-8678-77a8728b1d0e@kernel.dk> Date: Tue, 5 May 2026 02:03:30 -0600 Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [axboe:io_uring-user-acct.v2 2/2] io_uring/rsrc.c:52:46: warning: variable 'count' is uninitialized when used here To: kernel test robot Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev References: <202605051516.EwH8GTl5-lkp@intel.com> Content-Language: en-US From: Jens Axboe In-Reply-To: <202605051516.EwH8GTl5-lkp@intel.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 5/5/26 1:58 AM, kernel test robot wrote: > tree: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux.git io_uring-user-acct.v2 > head: 3db2fc5d524bb4877e39659d0180dfc0112893ac > commit: 3db2fc5d524bb4877e39659d0180dfc0112893ac [2/2] io_uring/rsrc: add huge page accounting for registered buffers > config: um-allnoconfig (https://download.01.org/0day-ci/archive/20260505/202605051516.EwH8GTl5-lkp@intel.com/config) > compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 5bac06718f502014fade905512f1d26d578a18f3) > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260505/202605051516.EwH8GTl5-lkp@intel.com/reproduce) > > If you fix the issue in a separate patch/commit (i.e. not just a new version of > the same patch/commit), kindly add following tags > | Reported-by: kernel test robot > | Closes: https://lore.kernel.org/oe-kbuild-all/202605051516.EwH8GTl5-lkp@intel.com/ > > All warnings (new ones prefixed by >>): > >>> io_uring/rsrc.c:52:46: warning: variable 'count' is uninitialized when used here [-Wuninitialized] > 52 | xa_store(&ctx->hpage_acct, key, xa_mk_value(count), GFP_KERNEL_ACCOUNT); > | ^~~~~ > io_uring/rsrc.c:37:21: note: initialize the variable 'count' to silence this warning > 37 | unsigned long count; > | ^ > | = 0 > 1 warning generated. This one is already fixed in the current tree. -- Jens Axboe