From 0356d778aa1e14d80db40a9dae02192d6b47a5ac Mon Sep 17 00:00:00 2001 From: Ren Zhijie Date: Thu, 9 Jun 2022 20:04:48 +0800 Subject: [PATCH] hwmon: (pmbus) fix build error unused-function MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If CONFIG_PMBUS is y and CONFIG_DEBUG_FS is not set. make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu-, will be failed, like this: drivers/hwmon/pmbus/pmbus_core.c:593:13: error: ‘pmbus_check_block_register’ defined but not used [-Werror=unused-function] static bool pmbus_check_block_register(struct i2c_client *client, int page, ^~~~~~~~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors make[3]: *** [drivers/hwmon/pmbus/pmbus_core.o] Error 1 make[2]: *** [drivers/hwmon/pmbus] Error 2 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [drivers/hwmon] Error 2 make[1]: *** Waiting for unfinished jobs.... make: *** [drivers] Error 2 To fix building warning, use __maybe_unused to attach this func. Reported-by: Hulk Robot Fixes: c3ffc3a1ff83("hwmon: (pmbus) add a function to check the presence of a block register") Signed-off-by: Ren Zhijie Link: https://lore.kernel.org/r/20220609120448.139907-1-renzhijie2@huawei.com [groeck: Fixed continuation line alignment] Signed-off-by: Guenter Roeck --- drivers/hwmon/pmbus/pmbus_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/hwmon/pmbus/pmbus_core.c b/drivers/hwmon/pmbus/pmbus_core.c index 809e666cb52b..4187dc20d2aa 100644 --- a/drivers/hwmon/pmbus/pmbus_core.c +++ b/drivers/hwmon/pmbus/pmbus_core.c @@ -590,8 +590,8 @@ bool pmbus_check_word_register(struct i2c_client *client, int page, int reg) } EXPORT_SYMBOL_NS_GPL(pmbus_check_word_register, PMBUS); -static bool pmbus_check_block_register(struct i2c_client *client, int page, - int reg) +static bool __maybe_unused pmbus_check_block_register(struct i2c_client *client, + int page, int reg) { int rv; struct pmbus_data *data = i2c_get_clientdata(client);