From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Tissoires Subject: Re: [PATCH] platform/x86: shut up unused-function warning Date: Tue, 10 Jan 2017 16:33:56 +0100 Message-ID: <20170110153356.GE2299@mail.corp.redhat.com> References: <20170110152857.3140948-1-arnd@arndb.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Return-path: Received: from mx1.redhat.com ([209.132.183.28]:43452 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S937340AbdAJPeB (ORCPT ); Tue, 10 Jan 2017 10:34:01 -0500 Content-Disposition: inline In-Reply-To: <20170110152857.3140948-1-arnd@arndb.de> Sender: platform-driver-x86-owner@vger.kernel.org List-ID: To: Arnd Bergmann Cc: Darren Hart , Andy Shevchenko , platform-driver-x86@vger.kernel.org, linux-kernel@vger.kernel.org On Jan 10 2017 or thereabouts, Arnd Bergmann wrote: > The newly added driver guards its "resume" callback with an #ifdef CONFIG_PM > that should be CONFIG_PM_SLEEP instead, leading to a warning in some configurations: > > drivers/platform/x86/surface3-wmi.c:248:12: error: 's3_wmi_resume' defined but not used [-Werror=unused-function] > > Using a __maybe_unused annotation without an #ifdef avoids the mistake more > reliably. > > Fixes: 3dda3b3798f9 ("platform/x86: Add custom surface3 platform device for controlling LID") > Signed-off-by: Arnd Bergmann Ouch. Good catch. Reviewed-by: Benjamin Tissoires Cheers, Benjamin > --- > drivers/platform/x86/surface3-wmi.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/drivers/platform/x86/surface3-wmi.c b/drivers/platform/x86/surface3-wmi.c > index cbf4d83a7271..6ac1d1349d7e 100644 > --- a/drivers/platform/x86/surface3-wmi.c > +++ b/drivers/platform/x86/surface3-wmi.c > @@ -244,13 +244,11 @@ static int s3_wmi_remove(struct platform_device *device) > return 0; > } > > -#ifdef CONFIG_PM > -static int s3_wmi_resume(struct device *dev) > +static int __maybe_unused s3_wmi_resume(struct device *dev) > { > s3_wmi_send_lid_state(); > return 0; > } > -#endif > static SIMPLE_DEV_PM_OPS(s3_wmi_pm, NULL, s3_wmi_resume); > > static struct platform_driver s3_wmi_driver = { > -- > 2.9.0 >