tree: https://github.com/awilliam/linux-vfio.git next head: 2099363255f123f6c9abcfa8531bbec65a8f1820 commit: cc0ee20bd96971c10eba9a83ecf1c0733078a083 [22/27] vfio/fsl-mc: trigger an interrupt via eventfd config: i386-allyesconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://github.com/awilliam/linux-vfio/commit/cc0ee20bd96971c10eba9a83ecf... git remote add vfio https://github.com/awilliam/linux-vfio.git git fetch --no-tags vfio next git checkout cc0ee20bd96971c10eba9a83ecf1c0733078a083 # 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 errors (new ones prefixed by >>): drivers/vfio/fsl-mc/vfio_fsl_mc.c: In function 'vfio_fsl_mc_release': 170 | ret = dprc_reset_container(mc_cont->mc_io, 0, | ^~~~~~~~~~~~~~~~~~~~ 173 | DPRC_RESET_OPTION_NON_RECURSIVE); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/vfio/fsl-mc/vfio_fsl_mc.c:173:6: note: each undeclared identifier is reported only once for each function it appears in 183 | fsl_mc_cleanup_irq_pool(mc_cont); | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/vfio/fsl-mc/vfio_fsl_mc.c: In function 'vfio_fsl_mc_mmap_mmio': drivers/vfio/fsl-mc/vfio_fsl_mc.c:327:36: error: 'FSL_MC_REGION_CACHEABLE' undeclared (first use in this function) 327 | region_cacheable = (region.type & FSL_MC_REGION_CACHEABLE) && | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/vfio/fsl-mc/vfio_fsl_mc.c:328:22: error: 'FSL_MC_REGION_SHAREABLE' undeclared (first use in this function) 328 | (region.type & FSL_MC_REGION_SHAREABLE); | ^~~~~~~~~~~~~~~~~~~~~~~ drivers/vfio/fsl-mc/vfio_fsl_mc.c: In function 'vfio_fsl_mc_bus_notifier': drivers/vfio/fsl-mc/vfio_fsl_mc.c:394:9: error: 'struct fsl_mc_device' has no member named 'driver_override' 394 | mc_dev->driver_override = kasprintf(GFP_KERNEL, "%s", | ^~ drivers/vfio/fsl-mc/vfio_fsl_mc.c:396:14: error: 'struct fsl_mc_device' has no member named 'driver_override' 396 | if (!mc_dev->driver_override) | ^~ drivers/vfio/fsl-mc/vfio_fsl_mc.c: In function 'vfio_fsl_mc_init_device': drivers/vfio/fsl-mc/vfio_fsl_mc.c:433:8: error: implicit declaration of function 'dprc_setup' [-Werror=implicit-function-declaration] 433 | ret = dprc_setup(mc_dev); | ^~~~~~~~~~ drivers/vfio/fsl-mc/vfio_fsl_mc.c:439:8: error: implicit declaration of function 'dprc_scan_container' [-Werror=implicit-function-declaration] 439 | ret = dprc_scan_container(mc_dev, false); | ^~~~~~~~~~~~~~~~~~~ drivers/vfio/fsl-mc/vfio_fsl_mc.c:448:2: error: implicit declaration of function 'dprc_remove_devices' [-Werror=implicit-function-declaration] 448 | dprc_remove_devices(mc_dev, NULL, 0); | ^~~~~~~~~~~~~~~~~~~ drivers/vfio/fsl-mc/vfio_fsl_mc.c:449:2: error: implicit declaration of function 'dprc_cleanup' [-Werror=implicit-function-declaration] 449 | dprc_cleanup(mc_dev); | ^~~~~~~~~~~~ cc1: some warnings being treated as errors -- drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c:16:5: warning: no previous prototype for 'vfio_fsl_mc_irqs_allocate' [-Wmissing-prototypes] 16 | int vfio_fsl_mc_irqs_allocate(struct vfio_fsl_mc_device *vdev) | ^~~~~~~~~~~~~~~~~~~~~~~~~ drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c: In function 'vfio_fsl_mc_set_irq_trigger': 121 | ret = fsl_mc_populate_irq_pool(mc_cont, | ^~~~~~~~~~~~~~~~~~~~~~~~ 122 | FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/vfio/fsl-mc/vfio_fsl_mc_intr.c:122:4: note: each undeclared identifier is reported only once for each function it appears in cc1: some warnings being treated as errors vim +/dprc_reset_container +170 drivers/vfio/fsl-mc/vfio_fsl_mc.c 154 155 static void vfio_fsl_mc_release(void *device_data) 156 { 157 struct vfio_fsl_mc_device *vdev = device_data; 158 int ret; 159 160 mutex_lock(&vdev->reflck->lock); 161 162 if (!(--vdev->refcnt)) { 163 struct fsl_mc_device *mc_dev = vdev->mc_dev; 164 struct device *cont_dev = fsl_mc_cont_dev(&mc_dev->dev); 165 struct fsl_mc_device *mc_cont = to_fsl_mc_device(cont_dev); 166 167 vfio_fsl_mc_regions_cleanup(vdev); 168 169 /* reset the device before cleaning up the interrupts */ 171 mc_cont->mc_handle, 172 mc_cont->obj_desc.id, 174 175 if (ret) { 176 dev_warn(&mc_cont->dev, "VFIO_FLS_MC: reset device has failed (%d)\n", 177 ret); 178 WARN_ON(1); 179 } 180 181 vfio_fsl_mc_irqs_cleanup(vdev); 182 184 } 185 186 mutex_unlock(&vdev->reflck->lock); 187 188 module_put(THIS_MODULE); 189 } 190 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org