i40e: mark PM functions as __maybe_unused

A cleanup of the PM code left an incorrect #ifdef in place, leading
to a harmless build warning:

drivers/net/ethernet/intel/i40e/i40e_main.c:12223:12: error: 'i40e_resume' defined but not used [-Werror=unused-function]
drivers/net/ethernet/intel/i40e/i40e_main.c:12185:12: error: 'i40e_suspend' defined but not used [-Werror=unused-function]

It's easier to use __maybe_unused attributes here, since you
can't pick the wrong one.

Fixes: 0e5d3da40055 ("i40e: use newer generic PM support instead of legacy PM callbacks")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Acked-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 54ff34faca37e8cebb3fe542a05340def9805bd6..2a087319c09b768aaa58ccef69a1df53267839fa 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -9557,7 +9557,6 @@ static int i40e_init_interrupt_scheme(struct i40e_pf *pf)
        return 0;
 }
 
-#ifdef CONFIG_PM
 /**
  * i40e_restore_interrupt_scheme - Restore the interrupt scheme
  * @pf: private board data structure
@@ -9606,7 +9605,6 @@ err_unwind:
 
        return err;
 }
-#endif /* CONFIG_PM */
 
 /**
  * i40e_setup_misc_vector - Setup the misc vector to handle non queue events
@@ -13285,12 +13283,11 @@ static void i40e_shutdown(struct pci_dev *pdev)
        }
 }
 
-#ifdef CONFIG_PM
 /**
  * i40e_suspend - PM callback for moving to D3
  * @dev: generic device information structure
  **/
-static int i40e_suspend(struct device *dev)
+static int __maybe_unused i40e_suspend(struct device *dev)
 {
        struct pci_dev *pdev = to_pci_dev(dev);
        struct i40e_pf *pf = pci_get_drvdata(pdev);
@@ -13328,7 +13325,7 @@ static int i40e_suspend(struct device *dev)
  * i40e_resume - PM callback for waking up from D3
  * @dev: generic device information structure
  **/
-static int i40e_resume(struct device *dev)
+static int __maybe_unused i40e_resume(struct device *dev)
 {
        struct pci_dev *pdev = to_pci_dev(dev);
        struct i40e_pf *pf = pci_get_drvdata(pdev);
@@ -13360,8 +13357,6 @@ static int i40e_resume(struct device *dev)
        return 0;
 }
 
-#endif /* CONFIG_PM */
-
 static const struct pci_error_handlers i40e_err_handler = {
        .error_detected = i40e_pci_error_detected,
        .slot_reset = i40e_pci_error_slot_reset,
@@ -13377,11 +13372,9 @@ static struct pci_driver i40e_driver = {
        .id_table = i40e_pci_tbl,
        .probe    = i40e_probe,
        .remove   = i40e_remove,
-#ifdef CONFIG_PM
        .driver   = {
                .pm = &i40e_pm_ops,
        },
-#endif /* CONFIG_PM */
        .shutdown = i40e_shutdown,
        .err_handler = &i40e_err_handler,
        .sriov_configure = i40e_pci_sriov_configure,