diff options
| author |   Arnd Bergmann <arnd@arndb.de> | 2018-08-13 23:56:55 +0200 |
|---|---|---|
| committer |   Felipe Balbi <felipe.balbi@linux.intel.com> | 2018-08-29 09:59:37 +0300 |
| commit | 66174b6998a645c39867c3a301b4ee4611d6ca5b (patch) | |
| tree | 23520e926dca45cbbf03327fddb36df1badd698a /drivers/usb | |
| parent | Linux 4.19-rc1 (diff) | |
| download | linux-dev-66174b6998a645c39867c3a301b4ee4611d6ca5b.tar.xz linux-dev-66174b6998a645c39867c3a301b4ee4611d6ca5b.zip | |
usb: dwc3: of-simple: avoid unused function warnings
An incorrect #ifdef caused a pair of harmless warnings when CONFIG_PM_SLEEP
is disabled:
drivers/usb/dwc3/dwc3-of-simple.c:223:12: error: 'dwc3_of_simple_resume' defined but not used [-Werror=unused-function]
static int dwc3_of_simple_resume(struct device *dev)
^~~~~~~~~~~~~~~~~~~~~
drivers/usb/dwc3/dwc3-of-simple.c:213:12: error: 'dwc3_of_simple_suspend' defined but not used [-Werror=unused-function]
static int dwc3_of_simple_suspend(struct device *dev)
Since the #ifdef method is generally hard to get right, use
a simpler __maybe_unused annotation here to let the compiler
drop the unused functions silently. This also improves
compile-time coverage.
Fixes: 76251db86561 ("usb: dwc3: of-simple: reset host controller at suspend/resume")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Diffstat (limited to 'drivers/usb')
| -rw-r--r-- | drivers/usb/dwc3/dwc3-of-simple.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/drivers/usb/dwc3/dwc3-of-simple.c b/drivers/usb/dwc3/dwc3-of-simple.c index 40bf9e0bbc59..4c2771c5e727 100644 --- a/drivers/usb/dwc3/dwc3-of-simple.c +++ b/drivers/usb/dwc3/dwc3-of-simple.c @@ -180,8 +180,7 @@ static int dwc3_of_simple_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM -static int dwc3_of_simple_runtime_suspend(struct device *dev) +static int __maybe_unused dwc3_of_simple_runtime_suspend(struct device *dev) { struct dwc3_of_simple *simple = dev_get_drvdata(dev); int i; @@ -192,7 +191,7 @@ static int dwc3_of_simple_runtime_suspend(struct device *dev) return 0; } -static int dwc3_of_simple_runtime_resume(struct device *dev) +static int __maybe_unused dwc3_of_simple_runtime_resume(struct device *dev) { struct dwc3_of_simple *simple = dev_get_drvdata(dev); int ret; @@ -210,7 +209,7 @@ static int dwc3_of_simple_runtime_resume(struct device *dev) return 0; } -static int dwc3_of_simple_suspend(struct device *dev) +static int __maybe_unused dwc3_of_simple_suspend(struct device *dev) { struct dwc3_of_simple *simple = dev_get_drvdata(dev); @@ -220,7 +219,7 @@ static int dwc3_of_simple_suspend(struct device *dev) return 0; } -static int dwc3_of_simple_resume(struct device *dev) +static int __maybe_unused dwc3_of_simple_resume(struct device *dev) { struct dwc3_of_simple *simple = dev_get_drvdata(dev); @@ -229,7 +228,6 @@ static int dwc3_of_simple_resume(struct device *dev) return 0; } -#endif static const struct dev_pm_ops dwc3_of_simple_dev_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(dwc3_of_simple_suspend, dwc3_of_simple_resume) |