watchdog/hpwdt: Exclude via blacklist

Instead of having explicit if statments excluding devices,
use a pci_device_id table of devices to blacklist.

Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>

diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 9356230..eecd014 100644 (file)
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -50,6 +50,10 @@ static const struct pci_device_id hpwdt_devices[] = {
 };
 MODULE_DEVICE_TABLE(pci, hpwdt_devices);
 
+static const struct pci_device_id hpwdt_blacklist[] = {
+       { PCI_DEVICE_SUB(PCI_VENDOR_ID_HP, 0x3306, PCI_VENDOR_ID_HP, 0x1979) }, /* auxilary iLO */
+       {0},                    /* terminate list */
+};
 
 /*
  *     Watchdog operations
@@ -274,12 +278,10 @@ static int hpwdt_init_one(struct pci_dev *dev,
                return -ENODEV;
        }
 
-       /*
-        * Ignore all auxilary iLO devices with the following PCI ID
-        */
-       if (dev->subsystem_vendor == PCI_VENDOR_ID_HP &&
-           dev->subsystem_device == 0x1979)
+       if (pci_match_id(hpwdt_blacklist, dev)) {
+               dev_dbg(&dev->dev, "Not supported on this device\n");
                return -ENODEV;
+       }
 
        if (pci_enable_device(dev)) {
                dev_warn(&dev->dev,