[kbuild-all] Re: [helgaas-pci:pci/driver 17/24] drivers/misc/cxl/guest.c:34:29: sparse: sparse: incorrect type in assignment (different modifiers)

On Fri, Nov 12, 2021 at 5:45 AM Krzysztof Wilczyński <kw(a)linux.com&gt; wrote: Note that drivers/misc/cxl/ != drivers/cxl/ The former is CAPI Accelerator Link (?), and the latter is Compute Express Link. > > > tree: https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git pci/driver > > head: 0508b6f72f055b88df518db4f3811bda9bb35da4 > > commit: 115c9d41e58388415f4956d0a988c90fb48663b9 [17/24] cxl: Factor out common dev->driver expressions > > config: powerpc64-randconfig-s032-20211025 (attached as .config) > > compiler: powerpc64-linux-gcc (GCC) 11.2.0 > > 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-dirty > > # https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git/commit/?i... > > git remote add helgaas-pci https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git > > git fetch --no-tags helgaas-pci pci/driver > > git checkout 115c9d41e58388415f4956d0a988c90fb48663b9 > > # save the attached .config to linux build tree > > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=powerpc64 > > > > If you fix the issue, kindly add following tag as appropriate > > Reported-by: kernel test robot <lkp(a)intel.com&gt; > > > > > > sparse warnings: (new ones prefixed by >>) > > >> drivers/misc/cxl/guest.c:34:29: sparse: sparse: incorrect type in assignment (different modifiers) @@ expected struct pci_error_handlers *err_handler @@ got struct pci_error_handlers const *err_handler @@ > > drivers/misc/cxl/guest.c:34:29: sparse: expected struct pci_error_handlers *err_handler > > drivers/misc/cxl/guest.c:34:29: sparse: got struct pci_error_handlers const *err_handler > > drivers/misc/cxl/guest.c:108:33: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] phys_addr @@ got restricted __be64 [usertype] @@ > > drivers/misc/cxl/guest.c:108:33: sparse: expected unsigned long long [usertype] phys_addr > > drivers/misc/cxl/guest.c:108:33: sparse: got restricted __be64 [usertype] > > drivers/misc/cxl/guest.c:109:27: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] len @@ got restricted __be64 [usertype] @@ > > drivers/misc/cxl/guest.c:109:27: sparse: expected unsigned long long [usertype] len > > drivers/misc/cxl/guest.c:109:27: sparse: got restricted __be64 [usertype] > > drivers/misc/cxl/guest.c:111:35: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long long [usertype] len @@ got restricted __be64 [usertype] @@ > > drivers/misc/cxl/guest.c:111:35: sparse: expected unsigned long long [usertype] len > > drivers/misc/cxl/guest.c:111:35: sparse: got restricted __be64 [usertype] > > drivers/misc/cxl/guest.c:443:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned short const volatile [noderef] [usertype] __iomem *addr @@ got unsigned short [usertype] * @@ > > drivers/misc/cxl/guest.c:443:33: sparse: expected unsigned short const volatile [noderef] [usertype] __iomem *addr > > drivers/misc/cxl/guest.c:443:33: sparse: got unsigned short [usertype] * > > drivers/misc/cxl/guest.c:446:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned int const volatile [noderef] [usertype] __iomem *addr @@ got unsigned int * @@ > > drivers/misc/cxl/guest.c:446:33: sparse: expected unsigned int const volatile [noderef] [usertype] __iomem *addr > > drivers/misc/cxl/guest.c:446:33: sparse: got unsigned int * > > drivers/misc/cxl/guest.c:449:33: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected unsigned long long const volatile [noderef] [usertype] __iomem *addr @@ got unsigned long long [usertype] * @@ > > drivers/misc/cxl/guest.c:449:33: sparse: expected unsigned long long const volatile [noderef] [usertype] __iomem *addr > > drivers/misc/cxl/guest.c:449:33: sparse: got unsigned long long [usertype] * > > drivers/misc/cxl/guest.c:537:23: sparse: sparse: invalid assignment: |= > > drivers/misc/cxl/guest.c:537:23: sparse: left side has type restricted __be64 > > drivers/misc/cxl/guest.c:537:23: sparse: right side has type unsigned long long > > drivers/misc/cxl/guest.c:538:23: sparse: sparse: invalid assignment: |= > > drivers/misc/cxl/guest.c:538:23: sparse: left side has type restricted __be64 > > drivers/misc/cxl/guest.c:538:23: sparse: right side has type unsigned long long > > drivers/misc/cxl/guest.c:540:31: sparse: sparse: invalid assignment: |= > > drivers/misc/cxl/guest.c:540:31: sparse: left side has type restricted __be64 > > drivers/misc/cxl/guest.c:540:31: sparse: right side has type unsigned long long > > drivers/misc/cxl/guest.c:543:23: sparse: sparse: invalid assignment: |= > > drivers/misc/cxl/guest.c:543:23: sparse: left side has type restricted __be64 > > drivers/misc/cxl/guest.c:543:23: sparse: right side has type unsigned long long > > drivers/misc/cxl/guest.c:544:23: sparse: sparse: invalid assignment: |= > > drivers/misc/cxl/guest.c:544:23: sparse: left side has type restricted __be64 > > drivers/misc/cxl/guest.c:544:23: sparse: right side has type unsigned long long > > drivers/misc/cxl/guest.c:546:31: sparse: sparse: invalid assignment: |= > > drivers/misc/cxl/guest.c:546:31: sparse: left side has type restricted __be64 > > drivers/misc/cxl/guest.c:546:31: sparse: right side has type unsigned long long > > drivers/misc/cxl/guest.c:549:31: sparse: sparse: invalid assignment: |= > > drivers/misc/cxl/guest.c:549:31: sparse: left side has type restricted __be64 > > drivers/misc/cxl/guest.c:549:31: sparse: right side has type unsigned long long > > drivers/misc/cxl/guest.c:552:31: sparse: sparse: cast from restricted __be64 > > -- > > >> drivers/misc/cxl/pci.c:1816:29: sparse: sparse: incorrect type in assignment (different modifiers) @@ expected struct pci_error_handlers *err_handler @@ got struct pci_error_handlers const *err_handler @@ > > drivers/misc/cxl/pci.c:1816:29: sparse: expected struct pci_error_handlers *err_handler > > drivers/misc/cxl/pci.c:1816:29: sparse: got struct pci_error_handlers const *err_handler > > drivers/misc/cxl/pci.c:2041:37: sparse: sparse: incorrect type in assignment (different modifiers) @@ expected struct pci_error_handlers *err_handler @@ got struct pci_error_handlers const *err_handler @@ > > drivers/misc/cxl/pci.c:2041:37: sparse: expected struct pci_error_handlers *err_handler > > drivers/misc/cxl/pci.c:2041:37: sparse: got struct pci_error_handlers const *err_handler > > drivers/misc/cxl/pci.c:2090:37: sparse: sparse: incorrect type in assignment (different modifiers) @@ expected struct pci_error_handlers *err_handler @@ got struct pci_error_handlers const *err_handler @@ > > drivers/misc/cxl/pci.c:2090:37: sparse: expected struct pci_error_handlers *err_handler > > drivers/misc/cxl/pci.c:2090:37: sparse: got struct pci_error_handlers const *err_handler > > > > vim +34 drivers/misc/cxl/guest.c > > > > 17 > > 18 static void pci_error_handlers(struct cxl_afu *afu, > > 19 int bus_error_event, > > 20 pci_channel_state_t state) > > 21 { > > 22 struct pci_dev *afu_dev; > > 23 struct pci_driver *afu_drv; > > 24 struct pci_error_handlers *err_handler; > > 25 > > 26 if (afu->phb == NULL) > > 27 return; > > 28 > > 29 list_for_each_entry(afu_dev, &afu->phb->bus->devices, bus_list) { > > 30 afu_drv = afu_dev->driver; > > 31 if (!afu_drv) > > 32 continue; > > 33 > > > 34 err_handler = afu_drv->err_handler; > > 35 switch (bus_error_event) { > > 36 case CXL_ERROR_DETECTED_EVENT: > > 37 afu_dev->error_state = state; > > 38 > > 39 if (err_handler && > > 40 err_handler->error_detected) > > 41 err_handler->error_detected(afu_dev, state); > > 42 break; > > 43 case CXL_SLOT_RESET_EVENT: > > 44 afu_dev->error_state = state; > > 45 > > 46 if (err_handler && > > 47 err_handler->slot_reset) > > 48 err_handler->slot_reset(afu_dev); > > 49 break; > > 50 case CXL_RESUME_EVENT: > > 51 if (err_handler && > > 52 err_handler->resume) > > 53 err_handler->resume(afu_dev); > > 54 break; > > 55 } > > 56 } > > 57 } > > 58 > > Krzysztof