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authorArnd Bergmann <arnd@arndb.de>2017-08-23 16:42:45 +0300
committerJoerg Roedel <jroedel@suse.de>2017-08-28 12:24:52 +0300
commit6ce5b0f22d6061b33aaf302f73302f402fea0c17 (patch)
treef7bd0e73a686198b90ac8680e3adaffe254d82c7 /drivers/iommu/qcom_iommu.c
parentd43ecff3efbe0dcff4c239a65b17e68134388ed6 (diff)
downloadlinux-6ce5b0f22d6061b33aaf302f73302f402fea0c17.tar.xz
iommu: qcom: annotate PM functions as __maybe_unused
The qcom_iommu_disable_clocks() function is only called from PM code that is hidden in an #ifdef, causing a harmless warning without CONFIG_PM: drivers/iommu/qcom_iommu.c:601:13: error: 'qcom_iommu_disable_clocks' defined but not used [-Werror=unused-function] static void qcom_iommu_disable_clocks(struct qcom_iommu_dev *qcom_iommu) drivers/iommu/qcom_iommu.c:581:12: error: 'qcom_iommu_enable_clocks' defined but not used [-Werror=unused-function] static int qcom_iommu_enable_clocks(struct qcom_iommu_dev *qcom_iommu) Replacing that #ifdef with __maybe_unused annotations lets the compiler drop the functions silently instead. Fixes: 0ae349a0f33f ("iommu/qcom: Add qcom_iommu") Acked-by: Rob Clark <robdclark@gmail.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/qcom_iommu.c')
-rw-r--r--drivers/iommu/qcom_iommu.c6
1 files changed, 2 insertions, 4 deletions
diff --git a/drivers/iommu/qcom_iommu.c b/drivers/iommu/qcom_iommu.c
index 48b62aa52787..c8a587d034b0 100644
--- a/drivers/iommu/qcom_iommu.c
+++ b/drivers/iommu/qcom_iommu.c
@@ -860,8 +860,7 @@ static int qcom_iommu_device_remove(struct platform_device *pdev)
return 0;
}
-#ifdef CONFIG_PM
-static int qcom_iommu_resume(struct device *dev)
+static int __maybe_unused qcom_iommu_resume(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct qcom_iommu_dev *qcom_iommu = platform_get_drvdata(pdev);
@@ -869,7 +868,7 @@ static int qcom_iommu_resume(struct device *dev)
return qcom_iommu_enable_clocks(qcom_iommu);
}
-static int qcom_iommu_suspend(struct device *dev)
+static int __maybe_unused qcom_iommu_suspend(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
struct qcom_iommu_dev *qcom_iommu = platform_get_drvdata(pdev);
@@ -878,7 +877,6 @@ static int qcom_iommu_suspend(struct device *dev)
return 0;
}
-#endif
static const struct dev_pm_ops qcom_iommu_pm_ops = {
SET_RUNTIME_PM_OPS(qcom_iommu_suspend, qcom_iommu_resume, NULL)