tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 9fe36dd579c794ae5f1c236293c55fb6847e9654 commit: a3402cb621c1b3908600d3f364e991a6c5a8c06e [5141/5361] mm/hmm: improve driver API to work and wait over a range config: x86_64-randconfig-b0-02012138 (attached as .config) compiler: gcc-8 (Debian 8.2.0-14) 8.2.0 reproduce: git checkout a3402cb621c1b3908600d3f364e991a6c5a8c06e # save the attached .config to linux build tree make ARCH=x86_64 All errors (new ones prefixed by >>): In file included from kernel/memremap.c:14: >> include/linux/hmm.h:102:22: error: field 'mmu_notifier' has incomplete type struct mmu_notifier mmu_notifier; ^~~~~~~~~~~~ vim +/mmu_notifier +102 include/linux/hmm.h 81 82 83 /* 84 * struct hmm - HMM per mm struct 85 * 86 * @mm: mm struct this HMM struct is bound to 87 * @lock: lock protecting ranges list 88 * @ranges: list of range being snapshotted 89 * @mirrors: list of mirrors for this mm 90 * @mmu_notifier: mmu notifier to track updates to CPU page table 91 * @mirrors_sem: read/write semaphore protecting the mirrors list 92 * @wq: wait queue for user waiting on a range invalidation 93 * @notifiers: count of active mmu notifiers 94 * @dead: is the mm dead ? 95 */ 96 struct hmm { 97 struct mm_struct *mm; 98 struct kref kref; 99 struct mutex lock; 100 struct list_head ranges; 101 struct list_head mirrors; > 102 struct mmu_notifier mmu_notifier; 103 struct rw_semaphore mirrors_sem; 104 wait_queue_head_t wq; 105 long notifiers; 106 bool dead; 107 }; 108 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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