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X-IronPort-AV: E=McAfee;i="6200,9189,10300"; a="259153247" X-IronPort-AV: E=Sophos;i="5.90,219,1643702400"; d="scan'208";a="259153247" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Mar 2022 00:25:02 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.90,219,1643702400"; d="scan'208";a="652734975" Received: from lkp-server02.sh.intel.com (HELO 89b41b6ae01c) ([10.239.97.151]) by orsmga004.jf.intel.com with ESMTP; 29 Mar 2022 00:25:00 -0700 Received: from kbuild by 89b41b6ae01c with local (Exim 4.92) (envelope-from ) id 1nZ6Dr-0002mf-L6; Tue, 29 Mar 2022 07:24:59 +0000 Date: Tue, 29 Mar 2022 15:23:58 +0800 From: kernel test robot To: Colin Downs-Razouk Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, GNU/Weeb Mailing List , linux-kernel@vger.kernel.org, Chris Morin Subject: [ammarfaizi2-block:google/android/kernel/common/android12-kiwi-5.10 8832/9999] drivers/virtio/virtio_pvclock.c:49:6: warning: no previous prototype for function 'update_suspend_time' Message-ID: <202203291512.gezfy3Lu-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) List-Id: tree: https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android12-kiwi-5.10 head: 9c6bdae16301919fcab74129dee1083eba844952 commit: 029865ac9555743665dd106b4bbefb2f371849e9 [8832/9999] ANDROID: virtio: virtio_pvclock: initial driver impl config: x86_64-allyesconfig (https://download.01.org/0day-ci/archive/20220329/202203291512.gezfy3Lu-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 0f6d9501cf49ce02937099350d08f20c4af86f3d) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/ammarfaizi2/linux-block/commit/029865ac9555743665dd106b4bbefb2f371849e9 git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android12-kiwi-5.10 git checkout 029865ac9555743665dd106b4bbefb2f371849e9 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/virtio/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/virtio/virtio_pvclock.c:49:6: warning: no previous prototype for function 'update_suspend_time' [-Wmissing-prototypes] void update_suspend_time(struct work_struct *work) ^ drivers/virtio/virtio_pvclock.c:49:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void update_suspend_time(struct work_struct *work) ^ static >> drivers/virtio/virtio_pvclock.c:295:11: warning: mixing declarations and code is a C99 extension [-Wdeclaration-after-statement] uint32_t rating = ^ 2 warnings generated. vim +/update_suspend_time +49 drivers/virtio/virtio_pvclock.c 48 > 49 void update_suspend_time(struct work_struct *work) 50 { 51 u64 suspend_ns, suspend_time_delta = 0; 52 struct timespec64 inject_time; 53 struct virtio_pvclock *vp; 54 55 vp = container_of(work, struct virtio_pvclock, 56 update_suspend_time_work); 57 58 virtio_cread(vp->vdev, struct virtio_pvclock_config, suspend_time_ns, 59 &suspend_ns); 60 61 mutex_lock(&vp->inject_suspend_lock); 62 if (suspend_ns > vp->injected_suspend_ns) { 63 suspend_time_delta = suspend_ns - vp->injected_suspend_ns; 64 vp->injected_suspend_ns = suspend_ns; 65 } 66 mutex_unlock(&vp->inject_suspend_lock); 67 68 if (suspend_time_delta == 0) { 69 dev_err(&vp->vdev->dev, 70 "%s: suspend_time_ns is less than injected_suspend_ns\n", 71 __func__); 72 return; 73 } 74 75 inject_time = ns_to_timespec64(suspend_time_delta); 76 77 timekeeping_inject_sleeptime64(&inject_time); 78 79 dev_info(&vp->vdev->dev, "injected sleeptime: %llu ns\n", 80 suspend_time_delta); 81 } 82 -- 0-DAY CI Kernel Test Service https://01.org/lkp