[PATCH] wil6210: fix build warnings without CONFIG_PM

From: Arnd Bergmann
Date: Mon Dec 18 2017 - 08:46:23 EST


The #ifdef checks are hard to get right, in this case some functions
should have been left inside a CONFIG_PM_SLEEP check as seen by this
message:

drivers/net/wireless/ath/wil6210/pcie_bus.c:489:12: error: 'wil6210_pm_resume' defined but not used [-Werror=unused-function]
drivers/net/wireless/ath/wil6210/pcie_bus.c:484:12: error: 'wil6210_pm_suspend' defined but not used [-Werror=unused-function]

Using an __maybe_unused is easier here, so I'm replacing all the
other #ifdef in this file as well for consistency.

Fixes: 94162666cd51 ("wil6210: run-time PM when interface down")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/net/wireless/ath/wil6210/pcie_bus.c | 25 ++++++++-----------------
drivers/net/wireless/ath/wil6210/wil6210.h | 2 --
2 files changed, 8 insertions(+), 19 deletions(-)

diff --git a/drivers/net/wireless/ath/wil6210/pcie_bus.c b/drivers/net/wireless/ath/wil6210/pcie_bus.c
index 42a5480c764d..9e622ddcc0bb 100644
--- a/drivers/net/wireless/ath/wil6210/pcie_bus.c
+++ b/drivers/net/wireless/ath/wil6210/pcie_bus.c
@@ -31,10 +31,8 @@ static bool ftm_mode;
module_param(ftm_mode, bool, 0444);
MODULE_PARM_DESC(ftm_mode, " Set factory test mode, default - false");

-#ifdef CONFIG_PM
static int wil6210_pm_notify(struct notifier_block *notify_block,
unsigned long mode, void *unused);
-#endif /* CONFIG_PM */

static
void wil_set_capabilities(struct wil6210_priv *wil)
@@ -307,15 +305,15 @@ static int wil_pcie_probe(struct pci_dev *pdev, const struct pci_device_id *id)
goto bus_disable;
}

-#ifdef CONFIG_PM
- wil->pm_notify.notifier_call = wil6210_pm_notify;
+ if (IS_ENABLED(CONFIG_PM))
+ wil->pm_notify.notifier_call = wil6210_pm_notify;
+
rc = register_pm_notifier(&wil->pm_notify);
if (rc)
/* Do not fail the driver initialization, as suspend can
* be prevented in a later phase if needed
*/
wil_err(wil, "register_pm_notifier failed: %d\n", rc);
-#endif /* CONFIG_PM */

wil6210_debugfs_init(wil);

@@ -346,9 +344,7 @@ static void wil_pcie_remove(struct pci_dev *pdev)

wil_dbg_misc(wil, "pcie_remove\n");

-#ifdef CONFIG_PM
unregister_pm_notifier(&wil->pm_notify);
-#endif /* CONFIG_PM */

wil_pm_runtime_forbid(wil);

@@ -372,8 +368,6 @@ static const struct pci_device_id wil6210_pcie_ids[] = {
};
MODULE_DEVICE_TABLE(pci, wil6210_pcie_ids);

-#ifdef CONFIG_PM
-
static int wil6210_suspend(struct device *dev, bool is_runtime)
{
int rc = 0;
@@ -481,17 +475,17 @@ static int wil6210_pm_notify(struct notifier_block *notify_block,
return rc;
}

-static int wil6210_pm_suspend(struct device *dev)
+static int __maybe_unused wil6210_pm_suspend(struct device *dev)
{
return wil6210_suspend(dev, false);
}

-static int wil6210_pm_resume(struct device *dev)
+static int __maybe_unused wil6210_pm_resume(struct device *dev)
{
return wil6210_resume(dev, false);
}

-static int wil6210_pm_runtime_idle(struct device *dev)
+static int __maybe_unused wil6210_pm_runtime_idle(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct wil6210_priv *wil = pci_get_drvdata(pdev);
@@ -501,12 +495,12 @@ static int wil6210_pm_runtime_idle(struct device *dev)
return wil_can_suspend(wil, true);
}

-static int wil6210_pm_runtime_resume(struct device *dev)
+static int __maybe_unused wil6210_pm_runtime_resume(struct device *dev)
{
return wil6210_resume(dev, true);
}

-static int wil6210_pm_runtime_suspend(struct device *dev)
+static int __maybe_unused wil6210_pm_runtime_suspend(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct wil6210_priv *wil = pci_get_drvdata(pdev);
@@ -518,15 +512,12 @@ static int wil6210_pm_runtime_suspend(struct device *dev)

return wil6210_suspend(dev, true);
}
-#endif /* CONFIG_PM */

static const struct dev_pm_ops wil6210_pm_ops = {
-#ifdef CONFIG_PM
SET_SYSTEM_SLEEP_PM_OPS(wil6210_pm_suspend, wil6210_pm_resume)
SET_RUNTIME_PM_OPS(wil6210_pm_runtime_suspend,
wil6210_pm_runtime_resume,
wil6210_pm_runtime_idle)
-#endif /* CONFIG_PM */
};

static struct pci_driver wil6210_driver = {
diff --git a/drivers/net/wireless/ath/wil6210/wil6210.h b/drivers/net/wireless/ath/wil6210/wil6210.h
index cf27d9711dde..366a6ef222dc 100644
--- a/drivers/net/wireless/ath/wil6210/wil6210.h
+++ b/drivers/net/wireless/ath/wil6210/wil6210.h
@@ -742,9 +742,7 @@ struct wil6210_priv {

int fw_calib_result;

-#ifdef CONFIG_PM
struct notifier_block pm_notify;
-#endif /* CONFIG_PM */

bool suspend_resp_rcvd;
bool suspend_resp_comp;
--
2.9.0