Hi Eric, I love your patch! Yet something to improve: [auto build test ERROR on v5.11] [cannot apply to vfio/next next-20210223] [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/Eric-Auger/SMMUv3-Nested-Stage-Setup-VFIO-part/20210224-051641 base: f40ddce88593482919761f74910f42f4b84c004b config: arm64-randconfig-r003-20210223 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project c9439ca36342fb6013187d0a69aef92736951476) 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 # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/0day-ci/linux/commit/ec823a68d862693dc787422f168409996f43b10a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Eric-Auger/SMMUv3-Nested-Stage-Setup-VFIO-part/20210224-051641 git checkout ec823a68d862693dc787422f168409996f43b10a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from drivers/vfio/vfio_iommu_type1.c:36: In file included from include/linux/vfio.h:16: include/uapi/linux/vfio.h:1198:34: error: field has incomplete type 'struct iommu_pasid_table_config' struct iommu_pasid_table_config config; /* used on SET */ ^ include/uapi/linux/vfio.h:1198:9: note: forward declaration of 'struct iommu_pasid_table_config' struct iommu_pasid_table_config config; /* used on SET */ ^ drivers/vfio/vfio_iommu_type1.c:2625:3: error: implicit declaration of function 'iommu_detach_pasid_table' [-Werror,-Wimplicit-function-declaration] iommu_detach_pasid_table(d->domain); ^ drivers/vfio/vfio_iommu_type1.c:2625:3: note: did you mean 'vfio_detach_pasid_table'? drivers/vfio/vfio_iommu_type1.c:2619:1: note: 'vfio_detach_pasid_table' declared here vfio_detach_pasid_table(struct vfio_iommu *iommu) ^ drivers/vfio/vfio_iommu_type1.c:2639:9: error: implicit declaration of function 'iommu_uapi_attach_pasid_table' [-Werror,-Wimplicit-function-declaration] ret = iommu_uapi_attach_pasid_table(d->domain, (void __user *)arg); ^ drivers/vfio/vfio_iommu_type1.c:2642:5: error: implicit declaration of function 'iommu_detach_pasid_table' [-Werror,-Wimplicit-function-declaration] iommu_detach_pasid_table(d->domain); ^ >> drivers/vfio/vfio_iommu_type1.c:2668:9: error: implicit declaration of function 'iommu_bind_guest_msi' [-Werror,-Wimplicit-function-declaration] ret = iommu_bind_guest_msi(d->domain, giova, gpa, size); ^ >> drivers/vfio/vfio_iommu_type1.c:2675:3: error: implicit declaration of function 'iommu_unbind_guest_msi' [-Werror,-Wimplicit-function-declaration] iommu_unbind_guest_msi(d->domain, giova); ^ drivers/vfio/vfio_iommu_type1.c:2689:3: error: implicit declaration of function 'iommu_unbind_guest_msi' [-Werror,-Wimplicit-function-declaration] iommu_unbind_guest_msi(d->domain, giova); ^ 7 errors generated. vim +/iommu_bind_guest_msi +2668 drivers/vfio/vfio_iommu_type1.c 2617 2618 static void > 2619 vfio_detach_pasid_table(struct vfio_iommu *iommu) 2620 { 2621 struct vfio_domain *d; 2622 2623 mutex_lock(&iommu->lock); 2624 list_for_each_entry(d, &iommu->domain_list, next) 2625 iommu_detach_pasid_table(d->domain); 2626 2627 mutex_unlock(&iommu->lock); 2628 } 2629 2630 static int 2631 vfio_attach_pasid_table(struct vfio_iommu *iommu, unsigned long arg) 2632 { 2633 struct vfio_domain *d; 2634 int ret = 0; 2635 2636 mutex_lock(&iommu->lock); 2637 2638 list_for_each_entry(d, &iommu->domain_list, next) { > 2639 ret = iommu_uapi_attach_pasid_table(d->domain, (void __user *)arg); 2640 if (ret) { 2641 list_for_each_entry_continue_reverse(d, &iommu->domain_list, next) 2642 iommu_detach_pasid_table(d->domain); 2643 break; 2644 } 2645 } 2646 2647 mutex_unlock(&iommu->lock); 2648 return ret; 2649 } 2650 static int vfio_cache_inv_fn(struct device *dev, void *data) 2651 { 2652 struct domain_capsule *dc = (struct domain_capsule *)data; 2653 unsigned long arg = *(unsigned long *)dc->data; 2654 2655 return iommu_uapi_cache_invalidate(dc->domain, dev, (void __user *)arg); 2656 } 2657 2658 static int 2659 vfio_bind_msi(struct vfio_iommu *iommu, 2660 dma_addr_t giova, phys_addr_t gpa, size_t size) 2661 { 2662 struct vfio_domain *d; 2663 int ret = 0; 2664 2665 mutex_lock(&iommu->lock); 2666 2667 list_for_each_entry(d, &iommu->domain_list, next) { > 2668 ret = iommu_bind_guest_msi(d->domain, giova, gpa, size); 2669 if (ret) 2670 goto unwind; 2671 } 2672 goto unlock; 2673 unwind: 2674 list_for_each_entry_continue_reverse(d, &iommu->domain_list, next) { > 2675 iommu_unbind_guest_msi(d->domain, giova); 2676 } 2677 unlock: 2678 mutex_unlock(&iommu->lock); 2679 return ret; 2680 } 2681 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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