[android-common:mirror-chromeos-5.10-arcvm 1/1] drivers/virtio/virtio_wl.c:938:39: warning: assignment to 'struct dma_fence *' from 'int' makes pointer from integer without a cast

[kernel test robot <lkp@intel.com>]

Hi David,

FYI, the error/warning still remains.

tree:   https://android.googlesource.com/kernel/common mirror-chromeos-5.10-arcvm
head:   80e99694479e5e9fe7c6230aad1327bbb9c655be
commit: 6686780d2960d81b608e66938266602d276ea4d1 [1/1] CHROMIUM: virtio-wl: add support for host fences
config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20260511/202605112221.a4dpMvx8-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260511/202605112221.a4dpMvx8-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/202605112221.a4dpMvx8-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/virtio/virtio_wl.c: In function 'virtwl_vfd_send':
   drivers/virtio/virtio_wl.c:938:41: error: implicit declaration of function 'sync_file_get_fence'; did you mean 'sync_file_range'? [-Werror=implicit-function-declaration]
     938 |                                 fence = sync_file_get_fence(vfd_fds[i]);
         |                                         ^~~~~~~~~~~~~~~~~~~
         |                                         sync_file_range
>> drivers/virtio/virtio_wl.c:938:39: warning: assignment to 'struct dma_fence *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
     938 |                                 fence = sync_file_get_fence(vfd_fds[i]);
         |                                       ^
   drivers/virtio/virtio_wl.c:939:46: error: implicit declaration of function 'is_local_fence' [-Werror=implicit-function-declaration]
     939 |                                 if (fence && is_local_fence(fence)) {
         |                                              ^~~~~~~~~~~~~~
   drivers/virtio/virtio_wl.c: In function 'virtwl_ioctl_recv':
   drivers/virtio/virtio_wl.c:1417:32: error: implicit declaration of function 'sync_file_create'; did you mean 'sync_file_range'? [-Werror=implicit-function-declaration]
    1417 |                         sync = sync_file_create(&fence->base);
         |                                ^~~~~~~~~~~~~~~~
         |                                sync_file_range
>> drivers/virtio/virtio_wl.c:1417:30: warning: assignment to 'struct sync_file *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
    1417 |                         sync = sync_file_create(&fence->base);
         |                              ^
   drivers/virtio/virtio_wl.c:1435:42: error: invalid use of undefined type 'struct sync_file'
    1435 |                                 fput(sync->file);
         |                                          ^~
   drivers/virtio/virtio_wl.c:1438:45: error: invalid use of undefined type 'struct sync_file'
    1438 |                         fd_install(ret, sync->file);
         |                                             ^~
   cc1: some warnings being treated as errors


vim +938 drivers/virtio/virtio_wl.c

   886	
   887	static int virtwl_vfd_send(struct file *filp, const char __user *buffer,
   888						       u32 len, int *vfd_fds)
   889	{
   890		struct virtwl_vfd *vfd = filp->private_data;
   891		struct virtwl_info *vi = vfd->vi;
   892		struct fd vfd_files[VIRTWL_SEND_MAX_ALLOCS] = { { 0 } };
   893		struct virtwl_vfd *vfds[VIRTWL_SEND_MAX_ALLOCS] = { 0 };
   894	#ifdef SEND_VIRTGPU_RESOURCES
   895		struct dma_buf *virtgpu_dma_bufs[VIRTWL_SEND_MAX_ALLOCS] = { 0 };
   896		struct dma_fence *virtgpu_dma_fence[VIRTWL_SEND_MAX_ALLOCS] = { 0 };
   897		bool foreign_id = false;
   898	#endif
   899		size_t vfd_count = 0;
   900		size_t vfd_ids_size;
   901		size_t ctrl_send_size;
   902		struct virtio_wl_ctrl_vfd_send *ctrl_send;
   903		u8 *vfd_ids;
   904		u8 *out_buffer;
   905		struct completion finish_completion;
   906		struct scatterlist out_sg;
   907		struct scatterlist in_sg;
   908		struct sg_table sgt;
   909		struct vm_struct *area;
   910		bool vmalloced;
   911		int ret;
   912		int i;
   913	
   914		if (vfd_fds) {
   915			for (i = 0; i < VIRTWL_SEND_MAX_ALLOCS; i++) {
   916				struct fd vfd_file;
   917				int fd = vfd_fds[i];
   918				struct dma_fence *fence;
   919				struct dma_buf *dma_buf = ERR_PTR(-EINVAL);
   920				bool handled = false;
   921	
   922				if (fd < 0)
   923					break;
   924	
   925				vfd_file = fdget(vfd_fds[i]);
   926				if (!vfd_file.file) {
   927					ret = -EBADFD;
   928					goto put_files;
   929				}
   930	
   931				if (vfd_file.file->f_op == &virtwl_vfd_fops) {
   932					vfd_files[i] = vfd_file;
   933					vfds[i] = vfd_file.file->private_data;
   934					handled = true;
   935				}
   936	
   937				if (!handled) {
 > 938					fence = sync_file_get_fence(vfd_fds[i]);
   939					if (fence && is_local_fence(fence)) {
   940						vfd_files[i] = vfd_file;
   941						vfds[i] = to_virtwl_fence(fence)->vfd;
   942						handled = true;
   943					}
   944				}
   945	
   946				if (handled) {
   947					if (vfds[i] && vfds[i]->id) {
   948						vfd_count++;
   949						continue;
   950					}
   951	
   952					ret = -EINVAL;
   953					goto put_files;
   954				}
   955	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki