Hi Roland, Kernel build failed on tree: git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband.git ummunot head: 67014395f8b1aba9eaffaca4c2716bcd3116ae85 commit: 67014395f8b1aba9eaffaca4c2716bcd3116ae85 [1/1] IB/uverbs: Add support for passing memory region invalidations to userspace config: x86_64-randconfig-net1 (attached as .config) All related error/warning messages: include/rdma/ib_umem.h:71:22: error: field 'mmu_notifier' has incomplete type vim +71 include/rdma/ib_umem.h 68 }; 69 70 struct ib_ummunotify_context { > 71 struct mmu_notifier mmu_notifier; 72 void (*callback)(struct ib_ummunotify_context *, 73 struct ib_ummunotify_range *); 74 struct mm_struct *mm; --- 0-DAY kernel build testing backend Open Source Technology Centre Fengguang Wu Intel Corporation