soc: ti: wkup_m3_ipc: mark PM functions as __maybe_unused

Everyone gets these #ifdefs wrong, leading to another warning here:

drivers/soc/ti/wkup_m3_ipc.c:547:12: error: 'wkup_m3_ipc_resume' defined but not used [-Werror=unused-function]
 static int wkup_m3_ipc_resume(struct device *dev)
drivers/soc/ti/wkup_m3_ipc.c:539:12: error: 'wkup_m3_ipc_suspend' defined but not used [-Werror=unused-function]
 static int wkup_m3_ipc_suspend(struct device *dev)

The easiest way to get it right is to remove all the #ifdefs and
let the compiler drop the unused functions silently after we
mark them as __maybe_unused.

Fixes: 7a872b6fb7fd ("soc: ti: wkup_m3_ipc: Add rtc_only with ddr in self refresh mode support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>

diff --git a/drivers/soc/ti/wkup_m3_ipc.c b/drivers/soc/ti/wkup_m3_ipc.c
index 6840688236b9e6b2c498f889ad0bffa499bd56a0..f5cb8c0af09f3ab8ade4443ada270bf1f1eefa92 100644 (file)
--- a/drivers/soc/ti/wkup_m3_ipc.c
+++ b/drivers/soc/ti/wkup_m3_ipc.c
@@ -535,8 +535,7 @@ static int wkup_m3_ipc_remove(struct platform_device *pdev)
        return 0;
 }
 
-#ifdef CONFIG_PM
-static int wkup_m3_ipc_suspend(struct device *dev)
+static int __maybe_unused wkup_m3_ipc_suspend(struct device *dev)
 {
        /*
         * Nothing needs to be done on suspend even with rtc_only flag set
@@ -544,7 +543,7 @@ static int wkup_m3_ipc_suspend(struct device *dev)
        return 0;
 }
 
-static int wkup_m3_ipc_resume(struct device *dev)
+static int __maybe_unused wkup_m3_ipc_resume(struct device *dev)
 {
        if (m3_ipc_state->is_rtc_only) {
                rproc_shutdown(m3_ipc_state->rproc);
@@ -559,7 +558,6 @@ static int wkup_m3_ipc_resume(struct device *dev)
 static const struct dev_pm_ops wkup_m3_ipc_pm_ops = {
        SET_SYSTEM_SLEEP_PM_OPS(wkup_m3_ipc_suspend, wkup_m3_ipc_resume)
 };
-#endif
 
 static const struct of_device_id wkup_m3_ipc_of_match[] = {
        { .compatible = "ti,am3352-wkup-m3-ipc", },
@@ -574,9 +572,7 @@ static struct platform_driver wkup_m3_ipc_driver = {
        .driver = {
                .name = "wkup_m3_ipc",
                .of_match_table = wkup_m3_ipc_of_match,
-#ifdef CONFIG_PM
                .pm = &wkup_m3_ipc_pm_ops,
-#endif
        },
 };