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Date: Thu, 14 Oct 2021 09:29:36 +0800 From: Cai Huoqing <caihuoqing@...du.com> To: Arnd Bergmann <arnd@...nel.org> CC: Jonathan Cameron <jic23@...nel.org>, Shawn Guo <shawnguo@...nel.org>, Sascha Hauer <s.hauer@...gutronix.de>, Fabio Estevam <festevam@...il.com>, Arnd Bergmann <arnd@...db.de>, Lars-Peter Clausen <lars@...afoo.de>, Pengutronix Kernel Team <kernel@...gutronix.de>, NXP Linux Team <linux-imx@....com>, <linux-iio@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] iio: imx8qxp-adc: mark PM functions as __maybe_unused On 13 10月 21 16:43:26, Arnd Bergmann wrote: > From: Arnd Bergmann <arnd@...db.de> > > Without CONFIG_PM_SLEEP, the runtime suspend/resume functions > are unused, producing a warning: > > drivers/iio/adc/imx8qxp-adc.c:433:12: error: 'imx8qxp_adc_runtime_resume' defined but not used [-Werror=unused-function] > 433 | static int imx8qxp_adc_runtime_resume(struct device *dev) > | ^~~~~~~~~~~~~~~~~~~~~~~~~~ > drivers/iio/adc/imx8qxp-adc.c:419:12: error: 'imx8qxp_adc_runtime_suspend' defined but not used [-Werror=unused-function] > 419 | static int imx8qxp_adc_runtime_suspend(struct device *dev) > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ > > Mark them as __maybe_unused to shut up the compiler. > > Fixes: 7bce634d02e6 ("iio: imx8qxp-adc: Add driver support for NXP IMX8QXP ADC") > Signed-off-by: Arnd Bergmann <arnd@...db.de> Reviewed-by: Cai Huoqing <caihuoqing@...du.com> > --- > drivers/iio/adc/imx8qxp-adc.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) > > diff --git a/drivers/iio/adc/imx8qxp-adc.c b/drivers/iio/adc/imx8qxp-adc.c > index 5030e0d8318d..901dd8e1b32f 100644 > --- a/drivers/iio/adc/imx8qxp-adc.c > +++ b/drivers/iio/adc/imx8qxp-adc.c > @@ -416,7 +416,7 @@ static int imx8qxp_adc_remove(struct platform_device *pdev) > return 0; > } > > -static int imx8qxp_adc_runtime_suspend(struct device *dev) > +static __maybe_unused int imx8qxp_adc_runtime_suspend(struct device *dev) > { > struct iio_dev *indio_dev = dev_get_drvdata(dev); > struct imx8qxp_adc *adc = iio_priv(indio_dev); > @@ -430,7 +430,7 @@ static int imx8qxp_adc_runtime_suspend(struct device *dev) > return 0; > } > > -static int imx8qxp_adc_runtime_resume(struct device *dev) > +static __maybe_unused int imx8qxp_adc_runtime_resume(struct device *dev) > { > struct iio_dev *indio_dev = dev_get_drvdata(dev); > struct imx8qxp_adc *adc = iio_priv(indio_dev); > -- > 2.29.2 >
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