linux-kernel - [PATCH] dmaengine: tegra210-adma: Fix unused function warnings

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Message-ID: <20190709083258.57112-1-yuehaibing@huawei.com>
Date:   Tue, 9 Jul 2019 16:32:58 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <ldewangan@...dia.com>, <jonathanh@...dia.com>, <vkoul@...nel.org>,
        <dan.j.williams@...el.com>, <thierry.reding@...il.com>
CC:     <linux-kernel@...r.kernel.org>, <dmaengine@...r.kernel.org>,
        <linux-tegra@...r.kernel.org>, YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH] dmaengine: tegra210-adma: Fix unused function warnings

If CONFIG_PM is not set, build warnings:

drivers/dma/tegra210-adma.c:747:12: warning: tegra_adma_runtime_resume defined but not used [-Wunused-function]
 static int tegra_adma_runtime_resume(struct device *dev)
drivers/dma/tegra210-adma.c:715:12: warning: tegra_adma_runtime_suspend defined but not used [-Wunused-function]
 static int tegra_adma_runtime_suspend(struct device *dev)

Mark the two function as __maybe_unused.

Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/dma/tegra210-adma.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/dma/tegra210-adma.c b/drivers/dma/tegra210-adma.c
index 2805853..b33cf6e 100644
--- a/drivers/dma/tegra210-adma.c
+++ b/drivers/dma/tegra210-adma.c
@@ -712,7 +712,7 @@ static struct dma_chan *tegra_dma_of_xlate(struct of_phandle_args *dma_spec,
 	return chan;
 }
 
-static int tegra_adma_runtime_suspend(struct device *dev)
+static int __maybe_unused tegra_adma_runtime_suspend(struct device *dev)
 {
 	struct tegra_adma *tdma = dev_get_drvdata(dev);
 	struct tegra_adma_chan_regs *ch_reg;
@@ -744,7 +744,7 @@ static int tegra_adma_runtime_suspend(struct device *dev)
 	return 0;
 }
 
-static int tegra_adma_runtime_resume(struct device *dev)
+static int __maybe_unused tegra_adma_runtime_resume(struct device *dev)
 {
 	struct tegra_adma *tdma = dev_get_drvdata(dev);
 	struct tegra_adma_chan_regs *ch_reg;
-- 
2.7.4