[luxis1999-iommufd:iommufd-v5.16-rc3 24/26] include/linux/iommufd.h:30:1: error: expected identifier or '(' before '{' token

[kernel test robot]

tree:   https://github.com/luxis1999/iommufd iommufd-v5.16-rc3
head:   9194d1d84235002ef9e0ae8666bc205840e3be74
commit: e4e0ed3d842fc0ce3952d33315f3d4a56b6f91a4 [24/26] vfio/pci: Add VFIO_DEVICE_ATTACH_IOASPT
config: alpha-randconfig-r016-20211227 (https://download.01.org/0day-ci/archive/20211227/202112271912.pdwOvXhh-lkp@xxxxxxxxx/config)
compiler: alpha-linux-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://github.com/luxis1999/iommufd/commit/e4e0ed3d842fc0ce3952d33315f3d4a56b6f91a4
        git remote add luxis1999-iommufd https://github.com/luxis1999/iommufd
        git fetch --no-tags luxis1999-iommufd iommufd-v5.16-rc3
        git checkout e4e0ed3d842fc0ce3952d33315f3d4a56b6f91a4
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=alpha 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, u64 dev_cookie);
         | ^~~~~~~~~~~~~~~~~~~~~~~


vim +30 include/linux/iommufd.h

b72430a4d634e3 Jason Gunthorpe 2021-11-11  26  
b72430a4d634e3 Jason Gunthorpe 2021-11-11  27  #else /* !CONFIG_IOMMUFD */
b72430a4d634e3 Jason Gunthorpe 2021-11-11  28  static inline struct iommufd_device *
b72430a4d634e3 Jason Gunthorpe 2021-11-11  29  iommufd_bind_pci_device(int fd, struct pci_dev *pdev, u32 *id, u64 dev_cookie);
b72430a4d634e3 Jason Gunthorpe 2021-11-11 @30  {
b72430a4d634e3 Jason Gunthorpe 2021-11-11  31  	return ERR_PTR(-EOPNOTSUPP);
b72430a4d634e3 Jason Gunthorpe 2021-11-11  32  }
b72430a4d634e3 Jason Gunthorpe 2021-11-11  33  

:::::: The code at line 30 was first introduced by commit
:::::: b72430a4d634e343ee1bb83e3a9e6bd020f09252 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