* [PATCH] drm: exynos: avoid unused function warning
@ 2016-07-11 21:51 Arnd Bergmann
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From: Arnd Bergmann @ 2016-07-11 21:51 UTC (permalink / raw)
To: Inki Dae
Cc: Arnd Bergmann, Joonyoung Shim, Seung-Woo Kim, Kyungmin Park,
David Airlie, Krzysztof Kozlowski, Marek Szyprowski,
Hyungwon Hwang, Gustavo Padovan, dri-devel, linux-arm-kernel,
linux-samsung-soc, linux-kernel
When CONFIG_PM is not set, we get a warning about an unused function:
drivers/gpu/drm/exynos/exynos_drm_gsc.c:1219:12: error: 'gsc_clk_ctrl' defined but not used [-Werror=unused-function]
static int gsc_clk_ctrl(struct gsc_context *ctx, bool enable)
^~~~~~~~~~~~
This removes the two #ifdef checks in this file and instead marks the
functions as __maybe_unused, which is a more reliable way of doing the
same, allowing better build coverage and avoiding the warning above.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/gpu/drm/exynos/exynos_drm_gsc.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gsc.c b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
index 5d20da8f957e..b0a773790f85 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gsc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gsc.c
@@ -1760,8 +1760,7 @@ static int gsc_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-static int gsc_suspend(struct device *dev)
+static int __maybe_unused gsc_suspend(struct device *dev)
{
struct gsc_context *ctx = get_gsc_context(dev);
@@ -1773,7 +1772,7 @@ static int gsc_suspend(struct device *dev)
return gsc_clk_ctrl(ctx, false);
}
-static int gsc_resume(struct device *dev)
+static int __maybe_unused gsc_resume(struct device *dev)
{
struct gsc_context *ctx = get_gsc_context(dev);
@@ -1784,10 +1783,8 @@ static int gsc_resume(struct device *dev)
return 0;
}
-#endif
-#ifdef CONFIG_PM
-static int gsc_runtime_suspend(struct device *dev)
+static int __maybe_unused gsc_runtime_suspend(struct device *dev)
{
struct gsc_context *ctx = get_gsc_context(dev);
@@ -1796,7 +1793,7 @@ static int gsc_runtime_suspend(struct device *dev)
return gsc_clk_ctrl(ctx, false);
}
-static int gsc_runtime_resume(struct device *dev)
+static int __maybe_unused gsc_runtime_resume(struct device *dev)
{
struct gsc_context *ctx = get_gsc_context(dev);
@@ -1804,7 +1801,6 @@ static int gsc_runtime_resume(struct device *dev)
return gsc_clk_ctrl(ctx, true);
}
-#endif
static const struct dev_pm_ops gsc_pm_ops = {
SET_SYSTEM_SLEEP_PM_OPS(gsc_suspend, gsc_resume)
--
2.9.0
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