Re: [PATCH v1 2/2] fuse: support io-uring registered buffers

[Joanne Koong <joannelkoong@gmail.com>]

On Thu, Oct 23, 2025 at 6:23 AM kernel test robot <lkp@intel.com> wrote:
>
> Hi Joanne,
>
> kernel test robot noticed the following build errors:
>
> [auto build test ERROR on mszeredi-fuse/for-next]
> [also build test ERROR on linus/master v6.18-rc2 next-20251023]
> [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#_base_tree_information]
>
> url:    https://github.com/intel-lab-lkp/linux/commits/Joanne-Koong/io-uring-add-io_uring_cmd_get_buffer_info/20251023-042601
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse.git for-next
> patch link:    https://lore.kernel.org/r/20251022202021.3649586-3-joannelkoong%40gmail.com
> patch subject: [PATCH v1 2/2] fuse: support io-uring registered buffers
> config: i386-buildonly-randconfig-002-20251023 (https://download.01.org/0day-ci/archive/20251023/202510232038.LOpSOOQa-lkp@intel.com/config)
> compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
> reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251023/202510232038.LOpSOOQa-lkp@intel.com/reproduce)
>
> If you fix the issue in a separate patch/commit (i.e. not just a new version of
> the same patch/commit), kindly add following tags
> | Reported-by: kernel test robot <lkp@intel.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202510232038.LOpSOOQa-lkp@intel.com/
>
> All errors (new ones prefixed by >>):
>
>    In file included from fs/fuse/dev.c:9:
> >> fs/fuse/dev_uring_i.h:51:20: error: field has incomplete type 'struct iov_iter'
>       51 |                         struct iov_iter payload_iter;
>          |                                         ^
>    include/linux/fs.h:74:8: note: forward declaration of 'struct iov_iter'
>       74 | struct iov_iter;
>          |        ^
>    In file included from fs/fuse/dev.c:9:
>    fs/fuse/dev_uring_i.h:52:20: error: field has incomplete type 'struct iov_iter'
>       52 |                         struct iov_iter headers_iter;

Ahh okay, I tried building with the linked config
(i386-buildonly-randconfig-002-20251023) and it indeed fails :(

It needs a "#include <linux/uio.h>" added to the dev_uring_i.h file.
I'll add that in for v2.

Thanks,
Joanne