PCI: Add PCI_VDEVICE_SUB helper macro

PCI_VDEVICE_SUB generates the pci_device_id struct layout for
the specific PCI device/subdevice. Private data may follow the
output.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Piotr Kwapulinski <piotr.kwapulinski@intel.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

diff --git a/include/linux/pci.h b/include/linux/pci.h
index db9b47ce3eefdc4ae2b56b4c9525cc953df66c87..414ee5fff66bc6a46d0cbf2776b4e7216a377fa5 100644 (file)
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1046,6 +1046,20 @@ struct pci_driver {
        .vendor = PCI_VENDOR_ID_##vend, .device = (dev), \
        .subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID, 0, 0
 
+/**
+ * PCI_VDEVICE_SUB - describe a specific PCI device/subdevice in a short form
+ * @vend: the vendor name
+ * @dev: the 16 bit PCI Device ID
+ * @subvend: the 16 bit PCI Subvendor ID
+ * @subdev: the 16 bit PCI Subdevice ID
+ *
+ * Generate the pci_device_id struct layout for the specific PCI
+ * device/subdevice. Private data may follow the output.
+ */
+#define PCI_VDEVICE_SUB(vend, dev, subvend, subdev) \
+       .vendor = PCI_VENDOR_ID_##vend, .device = (dev), \
+       .subvendor = (subvend), .subdevice = (subdev), 0, 0
+
 /**
  * PCI_DEVICE_DATA - macro used to describe a specific PCI device in very short form
  * @vend: the vendor name (without PCI_VENDOR_ID_ prefix)