tree:   https://github.com/jgunthorpe/linux vfio_iommufd
head:   a97b7f88065ebfd42e065dd37f092fadf031b154
commit: ba8f921671cd4870b4cdbaf6d605faa57aee226d [23/24] vfio: Make vfio_container optionally compiled
config: sparc64-randconfig-r015-20220925
compiler: sparc64-linux-gcc (GCC) 12.1.0
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/jgunthorpe/linux/commit/ba8f921671cd4870b4cdbaf6d605faa57aee226d
        git remote add jgunthorpe https://github.com/jgunthorpe/linux
        git fetch --no-tags jgunthorpe vfio_iommufd
        git checkout ba8f921671cd4870b4cdbaf6d605faa57aee226d
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=sparc64 SHELL=/bin/bash drivers/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All error/warnings (new ones prefixed by >>):

   In file included from drivers/vfio/vfio_main.c:39:
>> drivers/vfio/vfio.h:172:5: warning: no previous prototype for 'vfio_container_pin_pages' [-Wmissing-prototypes]
     172 | int vfio_container_pin_pages(struct vfio_container *container,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/vfio/vfio.h:179:6: warning: no previous prototype for 'vfio_container_unpin_pages' [-Wmissing-prototypes]
     179 | void vfio_container_unpin_pages(struct vfio_container *container,
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/vfio/vfio.h:184:5: warning: no previous prototype for 'vfio_container_dma_rw' [-Wmissing-prototypes]
     184 | int vfio_container_dma_rw(struct vfio_container *container, dma_addr_t iova,
         |     ^~~~~~~~~~~~~~~~~~~~~
   drivers/vfio/vfio_main.c: In function 'vfio_group_ioctl_unset_container':
>> drivers/vfio/vfio_main.c:680:17: error: implicit declaration of function 'vfio_group_detach_container'; did you mean 'vfio_group_ioctl_unset_container'? [-Werror=implicit-function-declaration]
     680 |                 vfio_group_detach_container(group);
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~
         |                 vfio_group_ioctl_unset_container
   drivers/vfio/vfio_main.c: In function 'vfio_device_first_open':
>> drivers/vfio/vfio_main.c:767:23: error: implicit declaration of function 'vfio_group_use_container'; did you mean 'vfio_group_ioctl_set_container'? [-Werror=implicit-function-declaration]
     767 |                 ret = vfio_group_use_container(device->group);
         |                       ^~~~~~~~~~~~~~~~~~~~~~~~
         |                       vfio_group_ioctl_set_container
>> drivers/vfio/vfio_main.c:783:17: error: implicit declaration of function 'vfio_device_container_register' [-Werror=implicit-function-declaration]
     783 |                 vfio_device_container_register(device);
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/vfio/vfio_main.c:789:17: error: implicit declaration of function 'vfio_group_unuse_container'; did you mean 'vfio_group_ioctl_set_container'? [-Werror=implicit-function-declaration]
     789 |                 vfio_group_unuse_container(device->group);
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~
         |                 vfio_group_ioctl_set_container
   drivers/vfio/vfio_main.c: In function 'vfio_device_last_close':
>> drivers/vfio/vfio_main.c:804:17: error: implicit declaration of function 'vfio_device_container_unregister' [-Werror=implicit-function-declaration]
     804 |                 vfio_device_container_unregister(device);
         |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors
--
   In file included from drivers/vfio/iommufd.c:8:
>> drivers/vfio/vfio.h:172:5: warning: no previous prototype for 'vfio_container_pin_pages' [-Wmissing-prototypes]
     172 | int vfio_container_pin_pages(struct vfio_container *container,
         |     ^~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/vfio/vfio.h:179:6: warning: no previous prototype for 'vfio_container_unpin_pages' [-Wmissing-prototypes]
     179 | void vfio_container_unpin_pages(struct vfio_container *container,
         |      ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/vfio/vfio.h:184:5: warning: no previous prototype for 'vfio_container_dma_rw' [-Wmissing-prototypes]
     184 | int vfio_container_dma_rw(struct vfio_container *container, dma_addr_t iova,
         |     ^~~~~~~~~~~~~~~~~~~~~


vim +/vfio_container_pin_pages +172 drivers/vfio/vfio.h

   171	
 > 172	int vfio_container_pin_pages(struct vfio_container *container,
   173				     struct iommu_group *iommu_group, dma_addr_t iova,
   174				     int npage, int prot, struct page **pages)
   175	{
   176		return -EOPNOTSUPP;
   177	}
   178	
 > 179	void vfio_container_unpin_pages(struct vfio_container *container,
   180					dma_addr_t iova, int npage)
   181	{
   182	}
   183	
 > 184	int vfio_container_dma_rw(struct vfio_container *container, dma_addr_t iova,
   185				  void *data, size_t len, bool write)
   186	{
   187		return -EOPNOTSUPP;
   188	}
   189	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp