[PATCH iwl-next 1/2] PCI: Add PCI_VDEVICE_SUB helper macro

[Piotr Kwapulinski <piotr.kwapulinski@intel.com>]

PCI_VDEVICE_SUB generates the pci_device_id struct layout for
the specific PCI device/subdevice. The subvendor field is set
to PCI_ANY_ID. Private data may follow the output.

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Piotr Kwapulinski <piotr.kwapulinski@intel.com>
---
 include/linux/pci.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

This patch is a part of the series from netdev.

diff --git a/include/linux/pci.h b/include/linux/pci.h
index 573b4c4..2b6b2c8 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1050,6 +1050,20 @@ 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
+ * @subdev: the 16 bit PCI Subdevice ID
+ *
+ * Generate the pci_device_id struct layout for the specific PCI
+ * device/subdevice. The subvendor field is set to PCI_ANY_ID. Private data
+ * may follow the output.
+ */
+#define PCI_VDEVICE_SUB(vend, dev, subdev) \
+	.vendor = PCI_VENDOR_ID_##vend, .device = (dev), \
+	.subvendor = PCI_ANY_ID, .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)
-- 
2.43.0