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authorArnd Bergmann <arnd@arndb.de>2016-01-25 16:04:03 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-02-25 11:03:46 +0100
commit12ec0529dbcc9871f68ced823572169ddc9048f2 (patch)
treecae8aa33ae2928af868c136248922a73421c7139 /drivers/video
parent25bce31b08d1fe7332f2e814472c5eacc5d84d65 (diff)
fbdev: s6e8ax0: avoid unused function warnings
commit b54729b6cea7d1f46b1ed70cb7065c6bdefaa780 upstream. The s6e8ax0 suspend/resume functions are hidden inside of an #ifdef when CONFIG_PM is set to avoid unused function warnings, but they call some other functions that nothing else calls, and we get warnings about those: drivers/video/fbdev/exynos/s6e8ax0.c:449:13: error: 's6e8ax0_sleep_in' defined but not used [-Werror=unused-function] drivers/video/fbdev/exynos/s6e8ax0.c:485:13: error: 's6e8ax0_display_off' defined but not used [-Werror=unused-function] This marks the PM functions as __maybe_unused so the compiler can silently drop them when they are not referenced. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/fbdev/exynos/s6e8ax0.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/drivers/video/fbdev/exynos/s6e8ax0.c b/drivers/video/fbdev/exynos/s6e8ax0.c
index 95873f26e39c..de2f3e793786 100644
--- a/drivers/video/fbdev/exynos/s6e8ax0.c
+++ b/drivers/video/fbdev/exynos/s6e8ax0.c
@@ -829,8 +829,7 @@ static int s6e8ax0_probe(struct mipi_dsim_lcd_device *dsim_dev)
return 0;
}
-#ifdef CONFIG_PM
-static int s6e8ax0_suspend(struct mipi_dsim_lcd_device *dsim_dev)
+static int __maybe_unused s6e8ax0_suspend(struct mipi_dsim_lcd_device *dsim_dev)
{
struct s6e8ax0 *lcd = dev_get_drvdata(&dsim_dev->dev);
@@ -843,7 +842,7 @@ static int s6e8ax0_suspend(struct mipi_dsim_lcd_device *dsim_dev)
return 0;
}
-static int s6e8ax0_resume(struct mipi_dsim_lcd_device *dsim_dev)
+static int __maybe_unused s6e8ax0_resume(struct mipi_dsim_lcd_device *dsim_dev)
{
struct s6e8ax0 *lcd = dev_get_drvdata(&dsim_dev->dev);
@@ -855,10 +854,6 @@ static int s6e8ax0_resume(struct mipi_dsim_lcd_device *dsim_dev)
return 0;
}
-#else
-#define s6e8ax0_suspend NULL
-#define s6e8ax0_resume NULL
-#endif
static struct mipi_dsim_lcd_driver s6e8ax0_dsim_ddi_driver = {
.name = "s6e8ax0",
@@ -867,8 +862,8 @@ static struct mipi_dsim_lcd_driver s6e8ax0_dsim_ddi_driver = {
.power_on = s6e8ax0_power_on,
.set_sequence = s6e8ax0_set_sequence,
.probe = s6e8ax0_probe,
- .suspend = s6e8ax0_suspend,
- .resume = s6e8ax0_resume,
+ .suspend = IS_ENABLED(CONFIG_PM) ? s6e8ax0_suspend : NULL,
+ .resume = IS_ENABLED(CONFIG_PM) ? s6e8ax0_resume : NULL,
};
static int s6e8ax0_init(void)