tree: git://people.freedesktop.org/~agd5f/linux.git drm-next-4.15-wip
head: 1dffdb582aecb97a50f6a7feeb58f23488cd7ed6
commit: 6b3dbb0ca422ae70e44444c6d8fd273d5007026b [32/47] drm/amdgpu: SR-IOV
data exchange between PF&VF
config: i386-randconfig-i0-201741 (attached as .config)
compiler: gcc-4.8 (Debian 4.8.4-1) 4.8.4
reproduce:
git checkout 6b3dbb0ca422ae70e44444c6d8fd273d5007026b
# save the attached .config to linux build tree
make ARCH=i386
All errors (new ones prefixed by >>):
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c: In function
'amdgpu_virt_init_data_exchange':
>> drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:335:20: error: dereferencing
>> pointer to incomplete type
if (THIS_MODULE->version != NULL)
^
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c:336:29: error: dereferencing
pointer to incomplete type
strcpy(str, THIS_MODULE->version);
^
vim +335 drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
298
299 void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev)
300 {
301 uint32_t pf2vf_ver = 0;
302 uint32_t pf2vf_size = 0;
303 uint32_t checksum = 0;
304 uint32_t checkval;
305 char *str;
306
307 adev->virt.fw_reserve.p_pf2vf = NULL;
308 adev->virt.fw_reserve.p_vf2pf = NULL;
309
310 if (adev->fw_vram_usage.va != NULL) {
311 adev->virt.fw_reserve.p_pf2vf =
312 (struct amdgim_pf2vf_info_header *)(
313 adev->fw_vram_usage.va +
AMDGIM_DATAEXCHANGE_OFFSET);
314 pf2vf_ver = adev->virt.fw_reserve.p_pf2vf->version;
315 AMDGPU_FW_VRAM_PF2VF_READ(adev, header.size,
&pf2vf_size);
316 AMDGPU_FW_VRAM_PF2VF_READ(adev, checksum, &checksum);
317
318 /* pf2vf message must be in 4K */
319 if (pf2vf_size > 0 && pf2vf_size < 4096) {
320 checkval = amdgpu_virt_fw_reserve_get_checksum(
321 adev->virt.fw_reserve.p_pf2vf,
pf2vf_size,
322 adev->virt.fw_reserve.checksum_key,
checksum);
323 if (checkval == checksum) {
324 adev->virt.fw_reserve.p_vf2pf =
325 ((void
*)adev->virt.fw_reserve.p_pf2vf +
326 pf2vf_size);
327 memset((void
*)adev->virt.fw_reserve.p_vf2pf, 0,
328 sizeof(amdgim_vf2pf_info));
329 AMDGPU_FW_VRAM_VF2PF_WRITE(adev,
header.version,
330 AMDGPU_FW_VRAM_VF2PF_VER);
331 AMDGPU_FW_VRAM_VF2PF_WRITE(adev,
header.size,
332 sizeof(amdgim_vf2pf_info));
333 AMDGPU_FW_VRAM_VF2PF_READ(adev,
driver_version,
334 &str);
> 335 if (THIS_MODULE->version != NULL)
336 strcpy(str,
THIS_MODULE->version);
337 else
338 strcpy(str, "N/A");
339 AMDGPU_FW_VRAM_VF2PF_WRITE(adev,
driver_cert,
340 0);
341 AMDGPU_FW_VRAM_VF2PF_WRITE(adev,
checksum,
342
amdgpu_virt_fw_reserve_get_checksum(
343 adev->virt.fw_reserve.p_vf2pf,
344 pf2vf_size,
345
adev->virt.fw_reserve.checksum_key, 0));
346 }
347 }
348 }
349 }
350
---
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