net: intel: implement modern PM ops declarations

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>

1 files changed, 4 insertions, 4 deletions

diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index ef2440f3abf8..13361a780ece 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -5023,7 +5023,7 @@ err_dma:
  *
  * Called when the system (VM) is entering sleep/suspend.
  **/
-static int __maybe_unused iavf_suspend(struct device *dev_d)
+static int iavf_suspend(struct device *dev_d)
 {
 	struct net_device *netdev = dev_get_drvdata(dev_d);
 	struct iavf_adapter *adapter = netdev_priv(netdev);
@@ -5051,7 +5051,7 @@ static int __maybe_unused iavf_suspend(struct device *dev_d)
  *
  * Called when the system (VM) is resumed from sleep/suspend.
  **/
-static int __maybe_unused iavf_resume(struct device *dev_d)
+static int iavf_resume(struct device *dev_d)
 {
 	struct pci_dev *pdev = to_pci_dev(dev_d);
 	struct iavf_adapter *adapter;
@@ -5238,14 +5238,14 @@ static void iavf_shutdown(struct pci_dev *pdev)
 		pci_set_power_state(pdev, PCI_D3hot);
 }
 
-static SIMPLE_DEV_PM_OPS(iavf_pm_ops, iavf_suspend, iavf_resume);
+static DEFINE_SIMPLE_DEV_PM_OPS(iavf_pm_ops, iavf_suspend, iavf_resume);
 
 static struct pci_driver iavf_driver = {
 	.name      = iavf_driver_name,
 	.id_table  = iavf_pci_tbl,
 	.probe     = iavf_probe,
 	.remove    = iavf_remove,
-	.driver.pm = &iavf_pm_ops,
+	.driver.pm = pm_sleep_ptr(&iavf_pm_ops),
 	.shutdown  = iavf_shutdown,
 };