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Tsirkin" Cc: lkp@intel.com, oe-kbuild-all@lists.linux.dev, virtualization@lists.linux.dev, Jason Wang , Cindy Lu , Xuan Zhuo , Stefano Garzarella , linux-kernel@vger.kernel.org, Laurent Vivier , Yongji Xie , Eugenio =?iso-8859-1?Q?P=E9rez?= , Maxime Coquelin Subject: Re: [PATCH v3] vduse: Add suspend Message-ID: <202606111115.tKKe1qCE-lkp@intel.com> Precedence: bulk X-Mailing-List: virtualization@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20260610083452.477759-1-eperezma@redhat.com> Hi Eugenio, kernel test robot noticed the following build warnings: https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Eugenio-P-rez/vduse-Add-suspend/20260610-164534 base: next-20260609 patch link: https://lore.kernel.org/r/20260610083452.477759-1-eperezma%40redhat.com patch subject: [PATCH v3] vduse: Add suspend config: arm64-randconfig-r072-20260610 (https://download.01.org/0day-ci/archive/20260611/202606111115.tKKe1qCE-lkp@intel.com/config) compiler: aarch64-linux-gcc (GCC) 8.5.0 smatch: v0.5.0-9185-gbcc58b9c 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 | Reported-by: Dan Carpenter | Closes: https://lore.kernel.org/r/202606111115.tKKe1qCE-lkp@intel.com/ smatch warnings: drivers/vdpa/vdpa_user/vduse_dev.c:577 vduse_vq_kick() warn: inconsistent returns '&vq->kick_lock'. drivers/vdpa/vdpa_user/vduse_dev.c:1302 vduse_dev_queue_irq_work() warn: inconsistent returns '&dev->rwsem'. vim +577 drivers/vdpa/vdpa_user/vduse_dev.c c8a6153b6c59d9 Xie Yongji 2021-08-31 562 static void vduse_vq_kick(struct vduse_virtqueue *vq) c8a6153b6c59d9 Xie Yongji 2021-08-31 563 { c8a6153b6c59d9 Xie Yongji 2021-08-31 564 spin_lock(&vq->kick_lock); ^^^^^^^^^^^^^^^^^^^^^^^^^^ c8a6153b6c59d9 Xie Yongji 2021-08-31 565 if (!vq->ready) c8a6153b6c59d9 Xie Yongji 2021-08-31 566 goto unlock; c8a6153b6c59d9 Xie Yongji 2021-08-31 567 9c4307e82fa1dc Eugenio Pérez 2026-06-10 568 guard(rwsem_read)(&vq->dev->rwsem); 9c4307e82fa1dc Eugenio Pérez 2026-06-10 569 if (vq->dev->suspended) 9c4307e82fa1dc Eugenio Pérez 2026-06-10 570 return; unlock before returning? 9c4307e82fa1dc Eugenio Pérez 2026-06-10 571 c8a6153b6c59d9 Xie Yongji 2021-08-31 572 if (vq->kickfd) 3652117f854819 Christian Brauner 2023-11-22 573 eventfd_signal(vq->kickfd); c8a6153b6c59d9 Xie Yongji 2021-08-31 574 else c8a6153b6c59d9 Xie Yongji 2021-08-31 575 vq->kicked = true; c8a6153b6c59d9 Xie Yongji 2021-08-31 576 unlock: c8a6153b6c59d9 Xie Yongji 2021-08-31 @577 spin_unlock(&vq->kick_lock); c8a6153b6c59d9 Xie Yongji 2021-08-31 578 } -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki