net: intel: implement modern PM ops declarations

Author: Jesse Brandeburg <jesse.brandeburg@intel.com>

Switch the Intel networking drivers to use the new power management ops
declaration formats and macros, which allows us to drop __maybe_unused,
as well as a bunch of ifdef checking CONFIG_PM.

This is safe to do because the compiler drops the unused functions,
verified by checking for any of the power management function symbols
being present in System.map for a build without CONFIG_PM.

If a driver has runtime PM, define the ops with pm_ptr(), and if the
driver has Simple PM, use pm_sleep_ptr(), as well as the new versions of
the macros for declaring the members of the pm_ops structs.

Checked with network-enabled allnoconfig, allyesconfig, allmodconfig on
x64_64.

Reviewed-by: Alan Brady <alan.brady@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
(cherry picked from commit 75a3f93)
Conflicts: Partial backport
JIRA: https://issues.redhat.com/browse/RHEL-17488
Signed-off-by: Corinna Vinschen <vinschen@redhat.com>

Author: github-cygwin

drivers/net/ethernet/intel/igbvf/netdev.c

@@ -2470,7 +2470,7 @@ static int igbvf_suspend(struct device *dev_d)
 	return 0;
 }
 
-static int __maybe_unused igbvf_resume(struct device *dev_d)
+static int igbvf_resume(struct device *dev_d)
 {
 	struct pci_dev *pdev = to_pci_dev(dev_d);
 	struct net_device *netdev = pci_get_drvdata(pdev);
@@ -2957,15 +2957,15 @@ static const struct pci_device_id igbvf_pci_tbl[] = {
 };
 MODULE_DEVICE_TABLE(pci, igbvf_pci_tbl);
 
-static SIMPLE_DEV_PM_OPS(igbvf_pm_ops, igbvf_suspend, igbvf_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(igbvf_pm_ops, igbvf_suspend, igbvf_resume);
 
 /* PCI Device API Driver */
 static struct pci_driver igbvf_driver = {
 	.name		= igbvf_driver_name,
 	.id_table	= igbvf_pci_tbl,
 	.probe		= igbvf_probe,
 	.remove		= igbvf_remove,
-	.driver.pm	= &igbvf_pm_ops,
+	.driver.pm	= pm_sleep_ptr(&igbvf_pm_ops),
 	.shutdown	= igbvf_shutdown,
 	.err_handler	= &igbvf_err_handler
 };