linux-kernel - [luxis1999-iommufd:iommufd-v5.16-rc3 32/33] include/linux/iommufd.h:30:1: error: expected identifier or '(' before '{' token

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Message-ID: <202112110154.soFBjQw6-lkp@intel.com>
Date:   Sat, 11 Dec 2021 01:01:50 +0800
From:   kernel test robot <lkp@...el.com>
To:     Liu Yi L <yi.l.liu@...el.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [luxis1999-iommufd:iommufd-v5.16-rc3 32/33]
 include/linux/iommufd.h:30:1: error: expected identifier or '(' before '{'
 token

tree:   https://github.com/luxis1999/iommufd iommufd-v5.16-rc3
head:   44f89b130eec28760e6b655facd4be49c5bcc3f9
commit: 219a6860a2c8c2c89d71793ce4f9375f3e7bb61f [32/33] vfio/pci: Add VFIO_DEVICE_ATTACH_IOASPT
config: nios2-buildonly-randconfig-r004-20211210 (https://download.01.org/0day-ci/archive/20211211/202112110154.soFBjQw6-lkp@intel.com/config)
compiler: nios2-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/219a6860a2c8c2c89d71793ce4f9375f3e7bb61f
        git remote add luxis1999-iommufd https://github.com/luxis1999/iommufd
        git fetch --no-tags luxis1999-iommufd iommufd-v5.16-rc3
        git checkout 219a6860a2c8c2c89d71793ce4f9375f3e7bb61f
        # 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=nios2 SHELL=/bin/bash drivers/vfio/

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

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

8a81aeff73cead Jason Gunthorpe 2021-11-11  26  
8a81aeff73cead Jason Gunthorpe 2021-11-11  27  #else /* !CONFIG_IOMMUFD */
8a81aeff73cead Jason Gunthorpe 2021-11-11  28  static inline struct iommufd_device *
8a81aeff73cead Jason Gunthorpe 2021-11-11  29  iommufd_bind_pci_device(int fd, struct pci_dev *pdev, u32 *id, u64 dev_cookie);
8a81aeff73cead Jason Gunthorpe 2021-11-11 @30  {
8a81aeff73cead Jason Gunthorpe 2021-11-11  31  	return ERR_PTR(-EOPNOTSUPP);
8a81aeff73cead Jason Gunthorpe 2021-11-11  32  }
8a81aeff73cead Jason Gunthorpe 2021-11-11  33  

:::::: The code at line 30 was first introduced by commit
:::::: 8a81aeff73cead826a9b7d26e9af4f09c9fd700f iommufd: Add kAPI toward external drivers

:::::: TO: Jason Gunthorpe <jgg@...dia.com>
:::::: CC: Liu Yi L <yi.l.liu@...el.com>

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