Hi Roland, Kernel build failed on tree: git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband.git ummunot head: fcfea2379e90880d2b7d1eaf0a79b0b764349ee4 commit: fcfea2379e90880d2b7d1eaf0a79b0b764349ee4 [1/1] IB/uverbs: Add support for passing memory region invalidations to userspace config: x86_64-randconfig-net9 (attached as .config) All related error/warning messages: drivers/infiniband/hw/qib/built-in.o: In function `ib_ummunotify_unregister_range': (.text+0x11bcd): multiple definition of `ib_ummunotify_unregister_range' drivers/infiniband/hw/qib/built-in.o: In function `ib_ummunotify_init_context': (.text+0x11bd3): multiple definition of `ib_ummunotify_init_context' drivers/infiniband/hw/qib/built-in.o: In function `ib_ummunotify_register_range': (.text+0x11bc7): multiple definition of `ib_ummunotify_register_range' drivers/infiniband/hw/qib/built-in.o: In function `ib_ummunotify_cleanup_context': (.text+0x11bdb): multiple definition of `ib_ummunotify_cleanup_context' drivers/infiniband/hw/nes/built-in.o: In function `ib_ummunotify_unregister_range': (.text+0x1b9c5): multiple definition of `ib_ummunotify_unregister_range' drivers/infiniband/hw/nes/built-in.o: In function `ib_ummunotify_init_context': (.text+0x1b9cb): multiple definition of `ib_ummunotify_init_context' drivers/infiniband/hw/nes/built-in.o: In function `ib_ummunotify_register_range': (.text+0x1b9bf): multiple definition of `ib_ummunotify_register_range' drivers/infiniband/hw/nes/built-in.o: In function `ib_ummunotify_cleanup_context': (.text+0x1b9d3): multiple definition of `ib_ummunotify_cleanup_context' --- 0-DAY kernel build testing backend Open Source Technology Centre Fengguang Wu Intel Corporation