Re: [PATCH net-next v4 01/12] virtio_pci: Remove supported_cap size build assert

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

Hi Daniel,

kernel test robot noticed the following build errors:

[auto build test ERROR on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Daniel-Jurgens/virtio_pci-Remove-supported_cap-size-build-assert/20251014-004146
base:   net-next/main
patch link:    https://lore.kernel.org/r/20251013152742.619423-2-danielj%40nvidia.com
patch subject: [PATCH net-next v4 01/12] virtio_pci: Remove supported_cap size build assert
config: s390-randconfig-001-20251014 (https://download.01.org/0day-ci/archive/20251014/202510141404.P5SMiruH-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 39f292ffa13d7ca0d1edff27ac8fd55024bb4d19)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251014/202510141404.P5SMiruH-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/202510141404.P5SMiruH-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/virtio/virtio_pci_modern.c:326:26: error: no member named 'support_caps' in 'struct virtio_admin_cmd_query_cap_id_result'
     326 |         if (!(le64_to_cpu(data->support_caps[0]) & (1 << VIRTIO_DEV_PARTS_CAP)))
         |                           ~~~~  ^
   include/linux/byteorder/generic.h:87:21: note: expanded from macro 'le64_to_cpu'
      87 | #define le64_to_cpu __le64_to_cpu
         |                     ^
   1 error generated.


vim +326 drivers/virtio/virtio_pci_modern.c

   304	
   305	static void virtio_pci_admin_cmd_cap_init(struct virtio_device *virtio_dev)
   306	{
   307		struct virtio_pci_device *vp_dev = to_vp_device(virtio_dev);
   308		struct virtio_admin_cmd_query_cap_id_result *data;
   309		struct virtio_admin_cmd cmd = {};
   310		struct scatterlist result_sg;
   311		int ret;
   312	
   313		data = kzalloc(sizeof(*data), GFP_KERNEL);
   314		if (!data)
   315			return;
   316	
   317		sg_init_one(&result_sg, data, sizeof(*data));
   318		cmd.opcode = cpu_to_le16(VIRTIO_ADMIN_CMD_CAP_ID_LIST_QUERY);
   319		cmd.group_type = cpu_to_le16(VIRTIO_ADMIN_GROUP_TYPE_SELF);
   320		cmd.result_sg = &result_sg;
   321	
   322		ret = vp_modern_admin_cmd_exec(virtio_dev, &cmd);
   323		if (ret)
   324			goto end;
   325	
 > 326		if (!(le64_to_cpu(data->support_caps[0]) & (1 << VIRTIO_DEV_PARTS_CAP)))
   327			goto end;
   328	
   329		virtio_pci_admin_cmd_dev_parts_objects_enable(virtio_dev);
   330	end:
   331		kfree(data);
   332	}
   333	

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