[ammarfaizi2-block:google/android/kernel/common/android-4.14-stable 3332/9999] drivers/gpu/drm/virtio/virtgpu_vq.c:1130:23: sparse: sparse: incorrect type in assignment (different base types)

From: kernel test robot
Date: Fri Mar 04 2022 - 01:33:59 EST


tree: https://github.com/ammarfaizi2/linux-block google/android/kernel/common/android-4.14-stable
head: 4ab5bac1598e3ed91a6267f6cada336467312112
commit: 4d701a3899580b291122ab7b147bc20981afd349 [3332/9999] CHROMIUM: drm/virtio: rebase zero-copy patches to virgl/drm-misc-next
config: i386-randconfig-s001-20211101 (https://download.01.org/0day-ci/archive/20220304/202203041419.Yp7SwxGu-lkp@xxxxxxxxx/config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce:
# apt-get install sparse
# sparse version: v0.6.4-dirty
# https://github.com/ammarfaizi2/linux-block/commit/4d701a3899580b291122ab7b147bc20981afd349
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block google/android/kernel/common/android-4.14-stable
git checkout 4d701a3899580b291122ab7b147bc20981afd349
# save the config file to linux build tree
mkdir build_dir
make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=i386 SHELL=/bin/bash drivers/gpu/drm/virtio/

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


sparse warnings: (new ones prefixed by >>)
drivers/gpu/drm/virtio/virtgpu_vq.c:200:33: sparse: sparse: restricted __le32 degrades to integer
drivers/gpu/drm/virtio/virtgpu_vq.c:200:43: sparse: sparse: restricted __le32 degrades to integer
>> drivers/gpu/drm/virtio/virtgpu_vq.c:1130:23: sparse: sparse: incorrect type in assignment (different base types) @@ expected restricted __le64 [usertype] offset @@ got unsigned long long [usertype] offset @@
drivers/gpu/drm/virtio/virtgpu_vq.c:1130:23: sparse: expected restricted __le64 [usertype] offset
drivers/gpu/drm/virtio/virtgpu_vq.c:1130:23: sparse: got unsigned long long [usertype] offset

vim +1130 drivers/gpu/drm/virtio/virtgpu_vq.c

1107
1108 void virtio_gpu_cmd_map(struct virtio_gpu_device *vgdev,
1109 struct virtio_gpu_object *bo,
1110 uint64_t offset,
1111 struct virtio_gpu_fence *fence)
1112 {
1113 struct virtio_gpu_resource_map *cmd_p;
1114 struct virtio_gpu_vbuffer *vbuf;
1115 struct virtio_gpu_resp_map_info *resp_buf;
1116
1117 resp_buf = kzalloc(sizeof(*resp_buf), GFP_KERNEL);
1118 if (!resp_buf) {
1119 DRM_ERROR("allocation failure\n");
1120 return;
1121 }
1122
1123 cmd_p = virtio_gpu_alloc_cmd_resp(vgdev,
1124 virtio_gpu_cmd_resource_map_cb, &vbuf, sizeof(*cmd_p),
1125 sizeof(struct virtio_gpu_resp_map_info), resp_buf);
1126 memset(cmd_p, 0, sizeof(*cmd_p));
1127
1128 cmd_p->hdr.type = cpu_to_le32(VIRTIO_GPU_CMD_RESOURCE_MAP);
1129 cmd_p->resource_id = cpu_to_le32(bo->hw_res_handle);
> 1130 cmd_p->offset = offset;
1131
1132 virtio_gpu_queue_fenced_ctrl_buffer(vgdev, vbuf, &cmd_p->hdr, fence);
1133 }
1134

---
0-DAY CI Kernel Test Service, Intel Corporation
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