Hi Pawel, I love your patch! Perhaps something to improve: [auto build test WARNING on next-20201211] [cannot apply to peter.chen-usb/ci-for-usb-next v5.10 v5.10-rc7 v5.10-rc6 v5.10] [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] url: https://github.com/0day-ci/linux/commits/Pawel-Laszczak/usb-cdns3-Adds-missing-__iomem-markers/20201214-205353 base: 3cc2bd440f2171f093b3a8480a4b54d8c270ed38 config: riscv-allmodconfig (attached as .config) compiler: riscv64-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 # https://github.com/0day-ci/linux/commit/315bfcf1e0604de6ecfc1856cf5820876390f16c git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Pawel-Laszczak/usb-cdns3-Adds-missing-__iomem-markers/20201214-205353 git checkout 315bfcf1e0604de6ecfc1856cf5820876390f16c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from arch/riscv/include/asm/io.h:23, from include/linux/io.h:13, from include/linux/irq.h:20, from include/asm-generic/hardirq.h:17, from ./arch/riscv/include/generated/asm/hardirq.h:1, from include/linux/hardirq.h:10, from include/linux/interrupt.h:11, from drivers/usb/cdns3/drd.c:13: drivers/usb/cdns3/drd.c: In function 'cdns_otg_disable_irq': drivers/usb/cdns3/drd.c:159:31: error: dereferencing pointer to incomplete type 'struct cdns_otg_irq_reg' 159 | writel(0, &cdns->otg_irq_regs->ien); | ^~ arch/riscv/include/asm/mmio.h:93:76: note: in definition of macro 'writel_cpu' 93 | #define writel_cpu(v, c) ((void)__raw_writel((__force u32)cpu_to_le32(v), (c))) | ^ drivers/usb/cdns3/drd.c:159:2: note: in expansion of macro 'writel' 159 | writel(0, &cdns->otg_irq_regs->ien); | ^~~~~~ drivers/usb/cdns3/drd.c: In function 'cdns_drd_init': drivers/usb/cdns3/drd.c:409:22: error: assignment to 'struct cdns_otg_irq_reg *' from incompatible pointer type 'struct cdns_otg_irq_regs *' [-Werror=incompatible-pointer-types] 409 | cdns->otg_irq_regs = (struct cdns_otg_irq_regs __iomem *) | ^ In file included from include/linux/byteorder/little_endian.h:5, from arch/riscv/include/uapi/asm/byteorder.h:10, from include/asm-generic/bitops/le.h:6, from arch/riscv/include/asm/bitops.h:202, from include/linux/bitops.h:32, from include/linux/kernel.h:11, from drivers/usb/cdns3/drd.c:12: >> drivers/usb/cdns3/drd.c:421:33: warning: passing argument 1 of '__raw_readl' makes pointer from integer without a cast [-Wint-conversion] 421 | if (readl(cdns->otg_cdnsp_regs->did) == OTG_CDNSP_DID) { | ~~~~~~~~~~~~~~~~~~~~^~~~~ | | | __le32 {aka unsigned int} include/uapi/linux/byteorder/little_endian.h:34:51: note: in definition of macro '__le32_to_cpu' 34 | #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) | ^ arch/riscv/include/asm/mmio.h:140:47: note: in expansion of macro 'readl_cpu' 140 | #define readl(c) ({ u32 __v; __io_br(); __v = readl_cpu(c); __io_ar(__v); __v; }) | ^~~~~~~~~ drivers/usb/cdns3/drd.c:421:7: note: in expansion of macro 'readl' 421 | if (readl(cdns->otg_cdnsp_regs->did) == OTG_CDNSP_DID) { | ^~~~~ In file included from arch/riscv/include/asm/io.h:23, from include/linux/io.h:13, from include/linux/irq.h:20, from include/asm-generic/hardirq.h:17, from ./arch/riscv/include/generated/asm/hardirq.h:1, from include/linux/hardirq.h:10, from include/linux/interrupt.h:11, from drivers/usb/cdns3/drd.c:13: arch/riscv/include/asm/mmio.h:63:60: note: expected 'const volatile void *' but argument is of type '__le32' {aka 'unsigned int'} 63 | static inline u32 __raw_readl(const volatile void __iomem *addr) | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~ drivers/usb/cdns3/drd.c:422:23: error: assignment to 'struct cdns_otg_irq_reg *' from incompatible pointer type 'struct cdns_otg_irq_regs *' [-Werror=incompatible-pointer-types] 422 | cdns->otg_irq_regs = (struct cdns_otg_irq_regs __iomem *) | ^ drivers/usb/cdns3/drd.c:426:23: error: assignment to 'struct cdns_otg_irq_reg *' from incompatible pointer type 'struct cdns_otg_irq_regs *' [-Werror=incompatible-pointer-types] 426 | cdns->otg_irq_regs = (struct cdns_otg_irq_regs __iomem *) | ^ cc1: some warnings being treated as errors vim +/__raw_readl +421 drivers/usb/cdns3/drd.c 383 384 int cdns_drd_init(struct cdns *cdns) 385 { 386 void __iomem *regs; 387 u32 state; 388 int ret; 389 390 regs = devm_ioremap_resource(cdns->dev, &cdns->otg_res); 391 if (IS_ERR(regs)) 392 return PTR_ERR(regs); 393 394 /* Detection of DRD version. Controller has been released 395 * in three versions. All are very similar and are software compatible, 396 * but they have same changes in register maps. 397 * The first register in oldest version is command register and it's 398 * read only. Driver should read 0 from it. On the other hand, in v1 399 * and v2 the first register contains device ID number which is not 400 * set to 0. Driver uses this fact to detect the proper version of 401 * controller. 402 */ 403 cdns->otg_v0_regs = regs; 404 if (!readl(&cdns->otg_v0_regs->cmd)) { 405 cdns->version = CDNS3_CONTROLLER_V0; 406 cdns->otg_v1_regs = NULL; 407 cdns->otg_cdnsp_regs = NULL; 408 cdns->otg_regs = regs; 409 cdns->otg_irq_regs = (struct cdns_otg_irq_regs __iomem *) 410 &cdns->otg_v0_regs->ien; 411 writel(1, &cdns->otg_v0_regs->simulate); 412 dev_dbg(cdns->dev, "DRD version v0 (%08x)\n", 413 readl(&cdns->otg_v0_regs->version)); 414 } else { 415 cdns->otg_v0_regs = NULL; 416 cdns->otg_v1_regs = regs; 417 cdns->otg_cdnsp_regs = regs; 418 419 cdns->otg_regs = (void __iomem *)&cdns->otg_v1_regs->cmd; 420 > 421 if (readl(cdns->otg_cdnsp_regs->did) == OTG_CDNSP_DID) { 422 cdns->otg_irq_regs = (struct cdns_otg_irq_regs __iomem *) 423 &cdns->otg_cdnsp_regs->ien; 424 cdns->version = CDNSP_CONTROLLER_V2; 425 } else { 426 cdns->otg_irq_regs = (struct cdns_otg_irq_regs __iomem *) 427 &cdns->otg_v1_regs->ien; 428 writel(1, &cdns->otg_v1_regs->simulate); 429 cdns->version = CDNS3_CONTROLLER_V1; 430 } 431 432 dev_dbg(cdns->dev, "DRD version v1 (ID: %08x, rev: %08x)\n", 433 readl(&cdns->otg_v1_regs->did), 434 readl(&cdns->otg_v1_regs->rid)); 435 } 436 437 state = OTGSTS_STRAP(readl(&cdns->otg_regs->sts)); 438 439 /* Update dr_mode according to STRAP configuration. */ 440 cdns->dr_mode = USB_DR_MODE_OTG; 441 442 if ((cdns->version == CDNSP_CONTROLLER_V2 && 443 state == OTGSTS_CDNSP_STRAP_HOST) || 444 (cdns->version != CDNSP_CONTROLLER_V2 && 445 state == OTGSTS_STRAP_HOST)) { 446 dev_dbg(cdns->dev, "Controller strapped to HOST\n"); 447 cdns->dr_mode = USB_DR_MODE_HOST; 448 } else if ((cdns->version == CDNSP_CONTROLLER_V2 && 449 state == OTGSTS_CDNSP_STRAP_GADGET) || 450 (cdns->version != CDNSP_CONTROLLER_V2 && 451 state == OTGSTS_STRAP_GADGET)) { 452 dev_dbg(cdns->dev, "Controller strapped to PERIPHERAL\n"); 453 cdns->dr_mode = USB_DR_MODE_PERIPHERAL; 454 } 455 456 ret = devm_request_threaded_irq(cdns->dev, cdns->otg_irq, 457 cdns_drd_irq, 458 cdns_drd_thread_irq, 459 IRQF_SHARED, 460 dev_name(cdns->dev), cdns); 461 if (ret) { 462 dev_err(cdns->dev, "couldn't get otg_irq\n"); 463 return ret; 464 } 465 466 state = readl(&cdns->otg_regs->sts); 467 if (OTGSTS_OTG_NRDY(state)) { 468 dev_err(cdns->dev, "Cadence USB3 OTG device not ready\n"); 469 return -ENODEV; 470 } 471 472 return 0; 473 } 474 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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