From: Arnd Bergmann <arnd@arndb.de>
To: Olof Johansson <olof@lixom.net>
Cc: Arnd Bergmann <arnd@arndb.de>,
        Enric Balletbo i Serra <enric.balletbo@collabora.com>,
        Guenter Roeck <groeck@chromium.org>, Lee Jones <lee.jones@linaro.org>,
        Jonathan Cameron <jic23@kernel.org>,
        Benson Leung <bleung@chromium.org>,
        Eric Caruso <ejcaruso@chromium.org>,
        Gwendal Grignou <gwendal@chromium.org>,
        Vincent Palatin <vpalatin@chromium.org>,
        Jeffery Yu <jefferyy@nvidia.com>,
        Logan Gunthorpe <logang@deltatee.com>, linux-kernel@vger.kernel.org
Subject: [PATCH] platform/chrome: cros_ec_lightbar - hide unused PM functions
Date: Tue, 27 Jun 2017 17:36:36 +0200
Message-Id: <20170627153705.1378256-1-arnd@arndb.de>
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 1466
Lines: 39

The only reference to the new functions is inside of an #ifdef,
which now causes a harmless warning when CONFIG_PM_SLEEP is not set:

chrome/cros_ec_dev.c:478:12: error: 'ec_device_resume' defined but not used [-Werror=unused-function]
chrome/cros_ec_dev.c:469:12: error: 'ec_device_suspend' defined but not used [-Werror=unused-function]

This marks the two functions as __maybe_unused so they can get
silently dropped by the compiler.

Fixes: 405c84308c43 ("platform/chrome: cros_ec_lightbar - Control of suspend/resume lightbar sequence")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 drivers/platform/chrome/cros_ec_dev.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/chrome/cros_ec_dev.c b/drivers/platform/chrome/cros_ec_dev.c
index b9bf086f7569..cf6c4f0846b8 100644
--- a/drivers/platform/chrome/cros_ec_dev.c
+++ b/drivers/platform/chrome/cros_ec_dev.c
@@ -466,7 +466,7 @@ static const struct platform_device_id cros_ec_id[] = {
 };
 MODULE_DEVICE_TABLE(platform, cros_ec_id);
 
-static int ec_device_suspend(struct device *dev)
+static __maybe_unused int ec_device_suspend(struct device *dev)
 {
 	struct cros_ec_dev *ec = dev_get_drvdata(dev);
 
@@ -475,7 +475,7 @@ static int ec_device_suspend(struct device *dev)
 	return 0;
 }
 
-static int ec_device_resume(struct device *dev)
+static __maybe_unused int ec_device_resume(struct device *dev)
 {
 	struct cros_ec_dev *ec = dev_get_drvdata(dev);
 
-- 
2.9.0