linux-kernel - [PATCH] [media] s5p_cec: Mark runtime suspend/resume as __maybe

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Date:   Thu, 13 Oct 2016 16:16:30 +0200
From:   Geert Uytterhoeven <geert@...ux-m68k.org>
To:     Marek Szyprowski <m.szyprowski@...sung.com>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Arnd Bergmann <arnd@...db.de>, linux-media@...r.kernel.org,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        Geert Uytterhoeven <geert@...ux-m68k.org>
Subject: [PATCH] [media] s5p_cec: Mark runtime suspend/resume as __maybe_unused

If CONFIG_PM_SLEEP=n:

    drivers/staging/media/s5p-cec/s5p_cec.c:235: warning: ‘s5p_cec_runtime_suspend’ defined but not used
    drivers/staging/media/s5p-cec/s5p_cec.c:243: warning: ‘s5p_cec_runtime_resume’ defined but not used

Mark these functions as__maybe_unused to fix this without introducing
an #ifdef.

Fixes: 57b978ada073106d ("[media] s5p-cec: fix system and runtime PM integration")
Signed-off-by: Geert Uytterhoeven <geert@...ux-m68k.org>
---
The above commit didn't take into account Arnd's previous fix...

 drivers/staging/media/s5p-cec/s5p_cec.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/s5p-cec/s5p_cec.c b/drivers/staging/media/s5p-cec/s5p_cec.c
index 1780a08b73c96193..58d7562311360b7f 100644
--- a/drivers/staging/media/s5p-cec/s5p_cec.c
+++ b/drivers/staging/media/s5p-cec/s5p_cec.c
@@ -231,7 +231,7 @@ static int s5p_cec_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static int s5p_cec_runtime_suspend(struct device *dev)
+static int __maybe_unused s5p_cec_runtime_suspend(struct device *dev)
 {
 	struct s5p_cec_dev *cec = dev_get_drvdata(dev);
 
@@ -239,7 +239,7 @@ static int s5p_cec_runtime_suspend(struct device *dev)
 	return 0;
 }
 
-static int s5p_cec_runtime_resume(struct device *dev)
+static int __maybe_unused s5p_cec_runtime_resume(struct device *dev)
 {
 	struct s5p_cec_dev *cec = dev_get_drvdata(dev);
 	int ret;
-- 
1.9.1