[infiniband:ummunot 1/1] include/rdma/ib_umem.h:71:22: error: field 'mmu_notifier' has incomplete type

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;

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0-DAY kernel build testing backend         Open Source Technology Centre
Fengguang Wu [off-list ref]                     Intel Corporation