[luxis1999-iommufd:iommufd-v5.17-rc1 23/28] include/linux/iommufd.h:30:1: error: expected identifier or '(' before '{' token

[kernel test robot]

tree:   https://github.com/luxis1999/iommufd iommufd-v5.17-rc1
head:   ebf68af0385d0d5c209e63e8065d31db938275d8
commit: 68a771c26362267465beafd67fabe1e751604493 [23/28] vfio/pci: Add VFIO_DEVICE_ATTACH_IOASPT
config: i386-randconfig-a003 (https://download.01.org/0day-ci/archive/20220210/202202100016.xxWqSxcW-lkp@xxxxxxxxx/config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/luxis1999/iommufd/commit/68a771c26362267465beafd67fabe1e751604493
        git remote add luxis1999-iommufd https://github.com/luxis1999/iommufd
        git fetch --no-tags luxis1999-iommufd iommufd-v5.17-rc1
        git checkout 68a771c26362267465beafd67fabe1e751604493
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/vfio/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All errors (new ones prefixed by >>):

   In file included from drivers/vfio/vfio.c:35:
>> include/linux/iommufd.h:30:1: error: expected identifier or '(' before '{' token
      30 | {
         | ^
   include/linux/iommufd.h:29:1: warning: 'iommufd_bind_pci_device' declared 'static' but never defined [-Wunused-function]
      29 | iommufd_bind_pci_device(int fd, struct pci_dev *pdev, u32 *id);
         | ^~~~~~~~~~~~~~~~~~~~~~~


vim +30 include/linux/iommufd.h

faffab36f0032f0 Jason Gunthorpe 2021-11-11  26  
faffab36f0032f0 Jason Gunthorpe 2021-11-11  27  #else /* !CONFIG_IOMMUFD */
faffab36f0032f0 Jason Gunthorpe 2021-11-11  28  static inline struct iommufd_device *
faffab36f0032f0 Jason Gunthorpe 2021-11-11  29  iommufd_bind_pci_device(int fd, struct pci_dev *pdev, u32 *id);
faffab36f0032f0 Jason Gunthorpe 2021-11-11 @30  {
faffab36f0032f0 Jason Gunthorpe 2021-11-11  31  	return ERR_PTR(-EOPNOTSUPP);
faffab36f0032f0 Jason Gunthorpe 2021-11-11  32  }
faffab36f0032f0 Jason Gunthorpe 2021-11-11  33  

:::::: The code at line 30 was first introduced by commit
:::::: faffab36f0032f06ff2478067840ead66e38b543 iommufd: Add kAPI toward external drivers

:::::: TO: Jason Gunthorpe <jgg@xxxxxxxxxx>
:::::: CC: Jason Gunthorpe <jgg@xxxxxxxxxx>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx