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authorArnd Bergmann <arnd@arndb.de>2016-07-04 15:14:08 +0200
committerVinod Koul <vinod.koul@intel.com>2016-07-06 19:09:43 +0200
commit184f337e6d859c20e0d3c6954980cbb744e014fb (patch)
tree69fafe1099b5dd8217b01b2c26bfda1fa179fe1b /drivers/dma/qcom/bam_dma.c
parentdmaengine: bcm2835: fix 64-bit warning (diff)
downloadlinux-184f337e6d859c20e0d3c6954980cbb744e014fb.tar.xz
linux-184f337e6d859c20e0d3c6954980cbb744e014fb.zip
dmaengine: qcom-bam-dma: add __maybe_unused annotations for PM
The bam_dma driver gained runtime PM support, but that causes build warnings whenever CONFIG_PM is disabled: drivers/dma/qcom/bam_dma.c:1324:12: error: 'bam_dma_runtime_resume' defined but not used [-Werror=unused-function] static int bam_dma_runtime_resume(struct device *dev) ^~~~~~~~~~~~~~~~~~~~~~ drivers/dma/qcom/bam_dma.c:1315:12: error: 'bam_dma_runtime_suspend' defined but not used [-Werror=unused-function] static int bam_dma_runtime_suspend(struct device *dev) This removes the incomplete #ifdef guard and instead marks all four PM functions as __maybe_unused, which avoids this kind of warning. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 7d2545599f5b ("dmaengine: qcom-bam-dma: Add pm_runtime support") Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma/qcom/bam_dma.c')
-rw-r--r--drivers/dma/qcom/bam_dma.c11
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/dma/qcom/bam_dma.c b/drivers/dma/qcom/bam_dma.c
index 4754891742ad..03c4eb3fd314 100644
--- a/drivers/dma/qcom/bam_dma.c
+++ b/drivers/dma/qcom/bam_dma.c
@@ -1312,7 +1312,7 @@ static int bam_dma_remove(struct platform_device *pdev)
return 0;
}
-static int bam_dma_runtime_suspend(struct device *dev)
+static int __maybe_unused bam_dma_runtime_suspend(struct device *dev)
{
struct bam_device *bdev = dev_get_drvdata(dev);
@@ -1321,7 +1321,7 @@ static int bam_dma_runtime_suspend(struct device *dev)
return 0;
}
-static int bam_dma_runtime_resume(struct device *dev)
+static int __maybe_unused bam_dma_runtime_resume(struct device *dev)
{
struct bam_device *bdev = dev_get_drvdata(dev);
int ret;
@@ -1334,8 +1334,8 @@ static int bam_dma_runtime_resume(struct device *dev)
return 0;
}
-#ifdef CONFIG_PM_SLEEP
-static int bam_dma_suspend(struct device *dev)
+
+static int __maybe_unused bam_dma_suspend(struct device *dev)
{
struct bam_device *bdev = dev_get_drvdata(dev);
@@ -1346,7 +1346,7 @@ static int bam_dma_suspend(struct device *dev)
return 0;
}
-static int bam_dma_resume(struct device *dev)
+static int __maybe_unused bam_dma_resume(struct device *dev)
{
struct bam_device *bdev = dev_get_drvdata(dev);
int ret;
@@ -1359,7 +1359,6 @@ static int bam_dma_resume(struct device *dev)
return 0;
}
-#endif
static const struct dev_pm_ops bam_dma_pm_ops = {
SET_LATE_SYSTEM_SLEEP_PM_OPS(bam_dma_suspend, bam_dma_resume)