[PATCH v2 1/3] rtc: m41t80: probe: use IS_ENABLED for CONFIG_OF

From: Dennis Lambe Jr
Date: Wed Jan 04 2023 - 00:25:34 EST


The style guide recommends IS_ENABLED rather than ifdef for wrapping
conditional code wherever possible.

Functions that are only called on DeviceTree platforms would otherwise
need to be cluttered up with __maybe_unused, which is especially
undesirable if there's nothing inherently DT-specific about those
functions.

Signed-off-by: Dennis Lambe Jr <dennis@xxxxxxxxxxxxxx>
---

Notes:
v1 -> v2: spelling fix in changelog

drivers/rtc/rtc-m41t80.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/rtc/rtc-m41t80.c b/drivers/rtc/rtc-m41t80.c
index 494052dbd39f..f963b76e5fc0 100644
--- a/drivers/rtc/rtc-m41t80.c
+++ b/drivers/rtc/rtc-m41t80.c
@@ -909,10 +909,11 @@ static int m41t80_probe(struct i2c_client *client)
if (IS_ERR(m41t80_data->rtc))
return PTR_ERR(m41t80_data->rtc);

-#ifdef CONFIG_OF
- wakeup_source = of_property_read_bool(client->dev.of_node,
- "wakeup-source");
-#endif
+ if (IS_ENABLED(CONFIG_OF)) {
+ wakeup_source = of_property_read_bool(client->dev.of_node,
+ "wakeup-source");
+ }
+
if (client->irq > 0) {
rc = devm_request_threaded_irq(&client->dev, client->irq,
NULL, m41t80_handle_irq,
--
2.25.1