diff mbox series

mfd: intel-lpss: hide suspend/resume functions in #ifdef

Message ID 20230516202746.561111-1-arnd@kernel.org
State New
Headers
Series mfd: intel-lpss: hide suspend/resume functions in #ifdef |

Commit Message

Arnd Bergmann May 16, 2023, 8:27 p.m. UTC 
  From: Arnd Bergmann <arnd@arndb.de>

When CONFIG_PM is disabled, the prototypes for these two functions
are not visible:

drivers/mfd/intel-lpss.c:482:5: error: no previous prototype for 'intel_lpss_suspend' [-Werror=missing-prototypes]
  482 | int intel_lpss_suspend(struct device *dev)
      |     ^~~~~~~~~~~~~~~~~~
drivers/mfd/intel-lpss.c:503:5: error: no previous prototype for 'intel_lpss_resume' [-Werror=missing-prototypes]
  503 | int intel_lpss_resume(struct device *dev)

Add the same #ifdef around the definition of the unused functions,
which avoids the warning and slightly reduces the code size.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/mfd/intel-lpss.c | 2 ++
 1 file changed, 2 insertions(+)

Comments

Lee Jones May 25, 2023, 10:31 a.m. UTC | #1 
On Tue, 16 May 2023, Arnd Bergmann wrote:

> From: Arnd Bergmann <arnd@arndb.de>
> 
> When CONFIG_PM is disabled, the prototypes for these two functions
> are not visible:
> 
> drivers/mfd/intel-lpss.c:482:5: error: no previous prototype for 'intel_lpss_suspend' [-Werror=missing-prototypes]
>   482 | int intel_lpss_suspend(struct device *dev)
>       |     ^~~~~~~~~~~~~~~~~~
> drivers/mfd/intel-lpss.c:503:5: error: no previous prototype for 'intel_lpss_resume' [-Werror=missing-prototypes]
>   503 | int intel_lpss_resume(struct device *dev)
> 
> Add the same #ifdef around the definition of the unused functions,
> which avoids the warning and slightly reduces the code size.
> 
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
>  drivers/mfd/intel-lpss.c | 2 ++
>  1 file changed, 2 insertions(+)

Applied, thanks
diff mbox series

Patch

diff --git a/drivers/mfd/intel-lpss.c b/drivers/mfd/intel-lpss.c
index cfbee2cfba6b..9591b354072a 100644
--- a/drivers/mfd/intel-lpss.c
+++ b/drivers/mfd/intel-lpss.c
@@ -460,6 +460,7 @@  void intel_lpss_remove(struct device *dev)
 }
 EXPORT_SYMBOL_GPL(intel_lpss_remove);
 
+#ifdef CONFIG_PM
 static int resume_lpss_device(struct device *dev, void *data)
 {
 	if (!dev_pm_test_driver_flags(dev, DPM_FLAG_SMART_SUSPEND))
@@ -514,6 +515,7 @@  int intel_lpss_resume(struct device *dev)
 	return 0;
 }
 EXPORT_SYMBOL_GPL(intel_lpss_resume);
+#endif
 
 static int __init intel_lpss_init(void)
 {