Hi Frank, I love your patch! Perhaps something to improve: [auto build test WARNING on jonmason-ntb/ntb-next] [also build test WARNING on driver-core/driver-core-testing linus/master v6.0-rc5 next-20220916] [cannot apply to tip/irq/core] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Frank-Li/platform-msi-export-symbol-platform_msi_create_irq_domain/20220914-060955 base: https://github.com/jonmason/ntb ntb-next config: mips-randconfig-s042-20220918 (https://download.01.org/0day-ci/archive/20220918/202209182035.SS1p5KkG-lkp@xxxxxxxxx/config) compiler: mips-linux-gcc (GCC) 12.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://github.com/intel-lab-lkp/linux/commit/c0b811e4bf3a50a612ed143d284880e09790eff5 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Frank-Li/platform-msi-export-symbol-platform_msi_create_irq_domain/20220914-060955 git checkout c0b811e4bf3a50a612ed143d284880e09790eff5 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=mips SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/pci/endpoint/functions/pci-epf-vntb.c:258:47: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got void * @@ drivers/pci/endpoint/functions/pci-epf-vntb.c:258:47: sparse: expected void const volatile [noderef] __iomem *mem drivers/pci/endpoint/functions/pci-epf-vntb.c:258:47: sparse: got void * >> drivers/pci/endpoint/functions/pci-epf-vntb.c:260:47: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got void * @@ drivers/pci/endpoint/functions/pci-epf-vntb.c:260:47: sparse: expected void volatile [noderef] __iomem *mem drivers/pci/endpoint/functions/pci-epf-vntb.c:260:47: sparse: got void * drivers/pci/endpoint/functions/pci-epf-vntb.c:560:66: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void [noderef] __iomem *virt_addr @@ got void *[assigned] mw_addr @@ drivers/pci/endpoint/functions/pci-epf-vntb.c:560:66: sparse: expected void [noderef] __iomem *virt_addr drivers/pci/endpoint/functions/pci-epf-vntb.c:560:66: sparse: got void *[assigned] mw_addr drivers/pci/endpoint/functions/pci-epf-vntb.c:1106:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __iomem *base @@ got struct epf_ntb_ctrl *reg @@ drivers/pci/endpoint/functions/pci-epf-vntb.c:1106:33: sparse: expected void [noderef] __iomem *base drivers/pci/endpoint/functions/pci-epf-vntb.c:1106:33: sparse: got struct epf_ntb_ctrl *reg drivers/pci/endpoint/functions/pci-epf-vntb.c:1117:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __iomem *base @@ got struct epf_ntb_ctrl *reg @@ drivers/pci/endpoint/functions/pci-epf-vntb.c:1117:33: sparse: expected void [noderef] __iomem *base drivers/pci/endpoint/functions/pci-epf-vntb.c:1117:33: sparse: got struct epf_ntb_ctrl *reg drivers/pci/endpoint/functions/pci-epf-vntb.c:1128:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __iomem *base @@ got struct epf_ntb_ctrl *reg @@ drivers/pci/endpoint/functions/pci-epf-vntb.c:1128:33: sparse: expected void [noderef] __iomem *base drivers/pci/endpoint/functions/pci-epf-vntb.c:1128:33: sparse: got struct epf_ntb_ctrl *reg drivers/pci/endpoint/functions/pci-epf-vntb.c:1140:33: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __iomem *base @@ got struct epf_ntb_ctrl *reg @@ drivers/pci/endpoint/functions/pci-epf-vntb.c:1140:33: sparse: expected void [noderef] __iomem *base drivers/pci/endpoint/functions/pci-epf-vntb.c:1140:33: sparse: got struct epf_ntb_ctrl *reg vim +258 drivers/pci/endpoint/functions/pci-epf-vntb.c 236 237 /** 238 * epf_ntb_cmd_handler() - Handle commands provided by the NTB Host 239 * @work: work_struct for the epf_ntb_epc 240 * 241 * Workqueue function that gets invoked for the two epf_ntb_epc 242 * periodically (once every 5ms) to see if it has received any commands 243 * from NTB host. The host can send commands to configure doorbell or 244 * configure memory window or to update link status. 245 */ 246 static void epf_ntb_cmd_handler(struct work_struct *work) 247 { 248 struct epf_ntb_ctrl *ctrl; 249 u32 command, argument; 250 struct epf_ntb *ntb; 251 struct device *dev; 252 int ret; 253 int i; 254 255 ntb = container_of(work, struct epf_ntb, cmd_handler.work); 256 257 for (i = 1; i < ntb->db_count; i++) { > 258 if (readl_relaxed(ntb->epf_db + i * ENTRY_SIZE)) { 259 ntb_db_event(&ntb->ntb, i); > 260 writel(0, ntb->epf_db + i * ENTRY_SIZE); 261 } 262 } 263 264 ctrl = ntb->reg; 265 command = ctrl->command; 266 if (!command) 267 goto reset_handler; 268 argument = ctrl->argument; 269 270 ctrl->command = 0; 271 ctrl->argument = 0; 272 273 ctrl = ntb->reg; 274 dev = &ntb->epf->dev; 275 276 switch (command) { 277 case COMMAND_CONFIGURE_DOORBELL: 278 ctrl->command_status = COMMAND_STATUS_OK; 279 break; 280 case COMMAND_TEARDOWN_DOORBELL: 281 ctrl->command_status = COMMAND_STATUS_OK; 282 break; 283 case COMMAND_CONFIGURE_MW: 284 ret = epf_ntb_configure_mw(ntb, argument); 285 if (ret < 0) 286 ctrl->command_status = COMMAND_STATUS_ERROR; 287 else 288 ctrl->command_status = COMMAND_STATUS_OK; 289 break; 290 case COMMAND_TEARDOWN_MW: 291 epf_ntb_teardown_mw(ntb, argument); 292 ctrl->command_status = COMMAND_STATUS_OK; 293 break; 294 case COMMAND_LINK_UP: 295 ntb->linkup = true; 296 ret = epf_ntb_link_up(ntb, true); 297 if (ret < 0) 298 ctrl->command_status = COMMAND_STATUS_ERROR; 299 else 300 ctrl->command_status = COMMAND_STATUS_OK; 301 goto reset_handler; 302 case COMMAND_LINK_DOWN: 303 ntb->linkup = false; 304 ret = epf_ntb_link_up(ntb, false); 305 if (ret < 0) 306 ctrl->command_status = COMMAND_STATUS_ERROR; 307 else 308 ctrl->command_status = COMMAND_STATUS_OK; 309 break; 310 default: 311 dev_err(dev, "UNKNOWN command: %d\n", command); 312 break; 313 } 314 315 reset_handler: 316 queue_delayed_work(kpcintb_workqueue, &ntb->cmd_handler, 317 msecs_to_jiffies(5)); 318 } 319 -- 0-DAY CI Kernel Test Service https://01.org/lkp
