tree: https://android.googlesource.com/kernel/common android11-kiwi-5.4 head: 04f660d6724f5df1b07f8cf9e1c55f70fb43d1d2 commit: 04f660d6724f5df1b07f8cf9e1c55f70fb43d1d2 [1/1] ANDROID: virtio: virtio_pvclock: initial driver impl config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): git remote add android-common https://android.googlesource.com/kernel/common git fetch --no-tags android-common android11-kiwi-5.4 git checkout 04f660d6724f5df1b07f8cf9e1c55f70fb43d1d2 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 48 | void update_suspend_time(struct work_struct *work) | ^~~~~~~~~~~~~~~~~~~ drivers/virtio/virtio_pvclock.c: In function 'virtpvclock_validate': 294 | uint32_t rating = | ^~~~~~~~ vim +/update_suspend_time +48 drivers/virtio/virtio_pvclock.c 47 49 { 50 u64 suspend_ns, suspend_time_delta = 0; 51 struct timespec64 inject_time; 52 struct virtio_pvclock *vp; 53 54 vp = container_of(work, struct virtio_pvclock, 55 update_suspend_time_work); 56 57 virtio_cread(vp->vdev, struct virtio_pvclock_config, suspend_time_ns, 58 &suspend_ns); 59 60 mutex_lock(&vp->inject_suspend_lock); 61 if (suspend_ns > vp->injected_suspend_ns) { 62 suspend_time_delta = suspend_ns - vp->injected_suspend_ns; 63 vp->injected_suspend_ns = suspend_ns; 64 } 65 mutex_unlock(&vp->inject_suspend_lock); 66 67 if (suspend_time_delta == 0) { 68 dev_err(&vp->vdev->dev, 69 "%s: suspend_time_ns is less than injected_suspend_ns\n", 70 __func__); 71 return; 72 } 73 74 inject_time = ns_to_timespec64(suspend_time_delta); 75 76 timekeeping_inject_sleeptime64(&inject_time); 77 78 dev_info(&vp->vdev->dev, "injected sleeptime: %llu ns\n", 79 suspend_time_delta); 80 } 81 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org