tree: https://github.com/intel/linux-intel-lts.git 5.4/yocto head: eeb611e5394c56d45c5cc8f7dc484c9f19e93143 commit: 792c8003efc4d75b5f52db70e7380b6a425bdba8 [414/1142] xlink-pcie: XLink PCIe Remote and Local Host driver config: parisc-allyesconfig (attached as .config) compiler: hppa-linux-gcc (GCC) 9.3.0 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 git checkout 792c8003efc4d75b5f52db70e7380b6a425bdba8 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc 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 >>): In file included from arch/parisc/include/asm/io.h:6, from include/linux/io.h:13, from include/linux/irq.h:20, from arch/parisc/include/asm/hardirq.h:13, from include/linux/hardirq.h:9, from include/linux/interrupt.h:11, from include/linux/pci.h:38, from drivers/misc/xlink-pcie/local_host/../common/mxlk.h:18, from drivers/misc/xlink-pcie/local_host/mxlk_epf.c:20: include/asm-generic/pgtable.h: In function 'pte_clear_not_present_full': 91 | pte_t old_pte; \ | ^~~~~~~ arch/parisc/include/asm/pgtable.h:316:34: note: in expansion of macro 'set_pte_at' 316 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0)) | ^~~~~~~~~~ include/asm-generic/pgtable.h:201:2: note: in expansion of macro 'pte_clear' 201 | pte_clear(mm, address, ptep); | ^~~~~~~~~ include/asm-generic/pgtable.h: In function '__ptep_modify_prot_commit': 91 | pte_t old_pte; \ | ^~~~~~~ include/asm-generic/pgtable.h:629:2: note: in expansion of macro 'set_pte_at' 629 | set_pte_at(vma->vm_mm, addr, ptep, pte); | ^~~~~~~~~~ drivers/misc/xlink-pcie/local_host/mxlk_epf.c: At top level: drivers/misc/xlink-pcie/local_host/mxlk_epf.c:104:6: error: no previous prototype for 'mxlk_register_host_irq' [-Werror=missing-prototypes] 104 | void mxlk_register_host_irq(struct mxlk *mxlk, irq_handler_t func) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/misc/xlink-pcie/local_host/mxlk_epf.c:111:5: error: no previous prototype for 'mxlk_raise_irq' [-Werror=missing-prototypes] 111 | int mxlk_raise_irq(struct mxlk *mxlk, enum mxlk_doorbell_type type) | ^~~~~~~~~~~~~~ drivers/misc/xlink-pcie/local_host/mxlk_epf.c:144:5: error: no previous prototype for 'mxlk_copy_from_host_ll' [-Werror=missing-prototypes] 144 | int mxlk_copy_from_host_ll(struct mxlk *mxlk, int chan, int descs_num) | ^~~~~~~~~~~~~~~~~~~~~~ drivers/misc/xlink-pcie/local_host/mxlk_epf.c:152:5: error: no previous prototype for 'mxlk_copy_to_host_ll' [-Werror=missing-prototypes] 152 | int mxlk_copy_to_host_ll(struct mxlk *mxlk, int chan, int descs_num) | ^~~~~~~~~~~~~~~~~~~~ drivers/misc/xlink-pcie/local_host/mxlk_epf.c: In function 'epf_bind': drivers/misc/xlink-pcie/local_host/mxlk_epf.c:306:7: error: variable 'msi_capable' set but not used [-Werror=unused-but-set-variable] 306 | bool msi_capable = true; | ^~~~~~~~~~~ 392 | strncpy(mxlk_epf->mxlk.io_comm->magic, MXLK_BOOT_MAGIC_YOCTO, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 393 | strlen(MXLK_BOOT_MAGIC_YOCTO)); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/misc/xlink-pcie/local_host/mxlk_epf.c:399:2: error: 'strncpy' output truncated before terminating nul copying 8 bytes from a string of the same length [-Werror=stringop-truncation] 399 | strncpy(mxlk_epf->mxlk.io_comm->magic, MXLK_BOOT_MAGIC_YOCTO, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 400 | strlen(MXLK_BOOT_MAGIC_YOCTO)); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors -- In file included from arch/parisc/include/asm/io.h:6, from include/linux/io.h:13, from include/linux/irq.h:20, from arch/parisc/include/asm/hardirq.h:13, from include/linux/hardirq.h:9, from include/linux/interrupt.h:11, from drivers/misc/xlink-pcie/local_host/mxlk_core.c:12: include/asm-generic/pgtable.h: In function 'pte_clear_not_present_full': 91 | pte_t old_pte; \ | ^~~~~~~ arch/parisc/include/asm/pgtable.h:316:34: note: in expansion of macro 'set_pte_at' 316 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0)) | ^~~~~~~~~~ include/asm-generic/pgtable.h:201:2: note: in expansion of macro 'pte_clear' 201 | pte_clear(mm, address, ptep); | ^~~~~~~~~ include/asm-generic/pgtable.h: In function '__ptep_modify_prot_commit': 91 | pte_t old_pte; \ | ^~~~~~~ include/asm-generic/pgtable.h:629:2: note: in expansion of macro 'set_pte_at' 629 | set_pte_at(vma->vm_mm, addr, ptep, pte); | ^~~~~~~~~~ cc1: all warnings being treated as errors -- In file included from arch/parisc/include/asm/io.h:6, from include/linux/io.h:13, from include/linux/irq.h:20, from arch/parisc/include/asm/hardirq.h:13, from include/linux/hardirq.h:9, from include/linux/interrupt.h:11, from include/linux/pci.h:38, from drivers/misc/xlink-pcie/local_host/../common/mxlk.h:18, from drivers/misc/xlink-pcie/local_host/../common/mxlk_core.h:13, from drivers/misc/xlink-pcie/local_host/mxlk_inf.c:13: include/asm-generic/pgtable.h: In function 'pte_clear_not_present_full': 91 | pte_t old_pte; \ | ^~~~~~~ arch/parisc/include/asm/pgtable.h:316:34: note: in expansion of macro 'set_pte_at' 316 | #define pte_clear(mm, addr, xp) set_pte_at(mm, addr, xp, __pte(0)) | ^~~~~~~~~~ include/asm-generic/pgtable.h:201:2: note: in expansion of macro 'pte_clear' 201 | pte_clear(mm, address, ptep); | ^~~~~~~~~ include/asm-generic/pgtable.h: In function '__ptep_modify_prot_commit': 91 | pte_t old_pte; \ | ^~~~~~~ include/asm-generic/pgtable.h:629:2: note: in expansion of macro 'set_pte_at' 629 | set_pte_at(vma->vm_mm, addr, ptep, pte); | ^~~~~~~~~~ drivers/misc/xlink-pcie/local_host/mxlk_inf.c: In function 'xlink_pcie_get_device_name': 41 | strncpy(device_name, MXLK_DRIVER_NAME, name_size); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors # https://github.com/intel/linux-intel-lts/commit/792c8003efc4d75b5f52db70e... git remote add intel-linux-intel-lts https://github.com/intel/linux-intel-lts.git git fetch --no-tags intel-linux-intel-lts 5.4/yocto git checkout 792c8003efc4d75b5f52db70e7380b6a425bdba8 vim +/strncpy +392 drivers/misc/xlink-pcie/local_host/mxlk_epf.c 297 298 static int epf_bind(struct pci_epf *epf) 299 { 300 struct pci_epc *epc = epf->epc; 301 struct mxlk_epf *mxlk_epf = epf_get_drvdata(epf); 302 struct dw_pcie_ep *ep = epc_get_drvdata(epc); 303 struct dw_pcie *pci = to_dw_pcie_from_ep(ep); 304 struct keembay_pcie *keembay = to_keembay_pcie(pci); 305 const struct pci_epc_features *features; 306 bool msi_capable = true; 307 size_t align = 0; 308 int ret; 309 u32 bus_num = 0; 310 u32 dev_num = 0; 311 312 if (WARN_ON_ONCE(!epc)) 313 return -EINVAL; 314 315 features = pci_epc_get_features(epc, epf->func_no); 316 mxlk_epf->epc_features = features; 317 if (features) { 318 msi_capable = features->msi_capable; 319 align = features->align; 320 ret = mxlk_configure_bar(epf, features); 321 if (ret) 322 return ret; 323 } 324 325 ret = mxlk_setup_bars(epf, align); 326 if (ret) { 327 dev_err(&epf->dev, "BAR initialization failed\n"); 328 return ret; 329 } 330 331 mxlk_epf->irq = keembay->ev_irq; 332 mxlk_epf->irq_dma = keembay->irq; 333 mxlk_epf->irq_err = keembay->err_irq; 334 mxlk_epf->apb_base = keembay->apb_base; 335 if (!strcmp(keembay->stepping, "A0")) { 336 mxlk_epf->mxlk.legacy_a0 = true; 337 mxlk_epf->mxlk.mmio->legacy_a0 = 1; 338 } else { 339 mxlk_epf->mxlk.legacy_a0 = false; 340 mxlk_epf->mxlk.mmio->legacy_a0 = 0; 341 } 342 343 ret = mxlk_ep_dma_init(epf); 344 if (ret) { 345 dev_err(&epf->dev, "DMA initialization failed\n"); 346 goto bind_error; 347 } 348 349 mxlk_set_device_status(&mxlk_epf->mxlk, MXLK_STATUS_READY); 350 351 ret = ioread32(mxlk_epf->apb_base + PCIE_REGS_PCIE_SYS_CFG_CORE); 352 bus_num = (ret >> PCIE_CFG_PBUS_NUM_OFFSET) & PCIE_CFG_PBUS_NUM_MASK; 353 dev_num = (ret >> PCIE_CFG_PBUS_DEV_NUM_OFFSET) & 354 PCIE_CFG_PBUS_DEV_NUM_MASK; 355 356 xlink_sw_id = (XLINK_DEV_INF_PCIE << XLINK_DEV_INF_TYPE_SHIFT) | 357 ((bus_num << 8 | dev_num) << XLINK_DEV_PHYS_ID_SHIFT) | 358 (XLINK_DEV_TYPE_KMB << XLINK_DEV_TYPE_SHIFT) | 359 (XLINK_DEV_SLICE_0 << XLINK_DEV_SLICE_ID_SHIFT) | 360 (XLINK_DEV_FUNC_VPU << XLINK_DEV_FUNC_SHIFT); 361 362 ret = mxlk_core_init(&mxlk_epf->mxlk); 363 if (ret) { 364 dev_err(&epf->dev, "Core component configuration failed\n"); 365 goto bind_error; 366 } 367 368 /* Enable interrupt */ 369 writel(LBC_CII_EVENT_FLAG, 370 mxlk_epf->apb_base + PCIE_REGS_PCIE_INTR_ENABLE); 371 ret = request_irq(mxlk_epf->irq, &mxlk_host_interrupt, 372 0, MXLK_DRIVER_NAME, &mxlk_epf->mxlk); 373 if (ret) { 374 dev_err(&epf->dev, "failed to request irq\n"); 375 goto bind_error; 376 } 377 378 ret = request_irq(mxlk_epf->irq_err, &mxlk_err_interrupt, 0, 379 MXLK_DRIVER_NAME, &mxlk_epf->mxlk); 380 if (ret) { 381 dev_err(&epf->dev, "failed to request error irq\n"); 382 free_irq(mxlk_epf->irq, &mxlk_epf->mxlk); 383 goto bind_error; 384 } 385 386 if (!mxlk_ep_dma_enabled(mxlk_epf->epf)) 387 mxlk_ep_dma_reset(mxlk_epf->epf); 388 389 mxlk_epf->mxlk.mmio->host_status = MXLK_STATUS_UNINIT; 390 mxlk_set_device_status(&mxlk_epf->mxlk, MXLK_STATUS_RUN); 391 mxlk_set_doorbell(&mxlk_epf->mxlk, FROM_DEVICE, DEV_EVENT, NO_OP); 393 strlen(MXLK_BOOT_MAGIC_YOCTO)); 394 395 return 0; 396 397 bind_error: 398 mxlk_set_device_status(&mxlk_epf->mxlk, MXLK_STATUS_ERROR); 399 strncpy(mxlk_epf->mxlk.io_comm->magic, MXLK_BOOT_MAGIC_YOCTO, 400 strlen(MXLK_BOOT_MAGIC_YOCTO)); 401 402 return ret; 403 } 404 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org