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| author | Arnd Bergmann <arnd@arndb.de> | 2017-08-23 15:42:45 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2017-08-28 11:24:52 +0200 |
| commit | 6ce5b0f22d6061b33aaf302f73302f402fea0c17 (patch) | |
| tree | f7bd0e73a686198b90ac8680e3adaffe254d82c7 /drivers/iommu | |
| parent | MAINTAINERS: Add entry for qcom_iommu (diff) | |
| download | linux-6ce5b0f22d6061b33aaf302f73302f402fea0c17.tar.xz linux-6ce5b0f22d6061b33aaf302f73302f402fea0c17.zip | |
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')
| -rw-r--r-- | drivers/iommu/qcom_iommu.c | 6 |
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) |