* Re: [PATCH v3 1/1] vfio/nvgrace-gpu: Add Blackwell-Next GPU readiness check via CXL DVSEC
[not found] <20260416014504.63067-1-ankita@nvidia.com>
@ 2026-04-20 20:09 ` kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-04-20 20:09 UTC (permalink / raw)
To: Ankit Agrawal, alex, kvm
Cc: llvm, oe-kbuild-all, jgg, yishaih, skolothumtho, kevin.tian,
ankita, bhelgaas, linux-kernel, linux-pci
Hi Ankit,
kernel test robot noticed the following build errors:
[auto build test ERROR on awilliam-vfio/next]
[also build test ERROR on awilliam-vfio/for-linus pci/next pci/for-linus linus/master v7.0 next-20260420]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Ankit-Agrawal/vfio-nvgrace-gpu-Add-Blackwell-Next-GPU-readiness-check-via-CXL-DVSEC/20260419-053131
base: https://github.com/awilliam/linux-vfio.git next
patch link: https://lore.kernel.org/r/20260416014504.63067-1-ankita%40nvidia.com
patch subject: [PATCH v3 1/1] vfio/nvgrace-gpu: Add Blackwell-Next GPU readiness check via CXL DVSEC
config: s390-allmodconfig (https://download.01.org/0day-ci/archive/20260421/202604210425.SVQZamM3-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260421/202604210425.SVQZamM3-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/202604210425.SVQZamM3-lkp@intel.com/
All errors (new ones prefixed by >>):
>> drivers/vfio/pci/nvgrace-gpu/main.c:296:23: error: call to undeclared function 'FIELD_GET'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
296 | mem_active_timeout = FIELD_GET(PCI_DVSEC_CXL_MEM_ACTIVE_TIMEOUT,
| ^
1 error generated.
vim +/FIELD_GET +296 drivers/vfio/pci/nvgrace-gpu/main.c
280
281 static int nvgrace_gpu_wait_device_ready_cxl(struct nvgrace_gpu_pci_core_device *nvdev)
282 {
283 struct pci_dev *pdev = nvdev->core_device.pdev;
284 int cxl_dvsec = nvdev->cxl_dvsec;
285 unsigned long mem_info_valid_deadline;
286 unsigned long timeout;
287 u32 dvsec_memory_status;
288 u8 mem_active_timeout;
289
290 pci_read_config_dword(pdev, cxl_dvsec + PCI_DVSEC_CXL_RANGE_SIZE_LOW(0),
291 &dvsec_memory_status);
292
293 if (cxl_dvsec_mem_is_active(dvsec_memory_status))
294 return 0;
295
> 296 mem_active_timeout = FIELD_GET(PCI_DVSEC_CXL_MEM_ACTIVE_TIMEOUT,
297 dvsec_memory_status);
298
299 timeout = jiffies +
300 msecs_to_jiffies(cxl_mem_active_timeout_ms(mem_active_timeout));
301
302 mem_info_valid_deadline = jiffies + msecs_to_jiffies(POLL_QUANTUM_MS);
303
304 do {
305 pci_read_config_dword(pdev,
306 cxl_dvsec + PCI_DVSEC_CXL_RANGE_SIZE_LOW(0),
307 &dvsec_memory_status);
308
309 if (cxl_dvsec_mem_is_active(dvsec_memory_status))
310 return 0;
311
312 /* Bail early if MEM_INFO_VALID is not set within 1 second */
313 if (!(dvsec_memory_status & PCI_DVSEC_CXL_MEM_INFO_VALID) &&
314 time_after(jiffies, mem_info_valid_deadline))
315 return -ETIME;
316
317 msleep(POLL_QUANTUM_MS);
318 } while (!time_after(jiffies, timeout));
319
320 return -ETIME;
321 }
322
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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