Re: [PATCH] PCI: rockchip: mark PM functions as __maybe_unused

From	Bjorn Helgaas <helgaas@kernel.org>
Newsgroups	linux.kernel
Subject	Re: [PATCH] PCI: rockchip: mark PM functions as __maybe_unused
Date	2017-01-30 22:00 +0100
Message-ID	<t5rdo-bx-1@gated-at.bofh.it> (permalink)
References	<t1KeD-16c-43@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Fri, Jan 20, 2017 at 05:24:30PM +0100, Arnd Bergmann wrote:
> When CONFIG_PM_SLEEP is disabled, we get harmless build warnings:
> 
> host/pcie-rockchip.c:1267:12: error: 'rockchip_pcie_resume_noirq' defined but not used [-Werror=unused-function]
> host/pcie-rockchip.c:1240:12: error: 'rockchip_pcie_suspend_noirq' defined but not used [-Werror=unused-function]
> 
> Marking both functions as __maybe_unused avoids the warning without
> the need for #ifdef around them.
> 
> Fixes: 013dd3d5e183 ("PCI: rockchip: Add system PM support")
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>

Applied with Shawn's ack to pci/host-rockchip for v4.11, thanks!

> ---
>  drivers/pci/host/pcie-rockchip.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/pci/host/pcie-rockchip.c b/drivers/pci/host/pcie-rockchip.c
> index 0d6e8ee5b017..b975116d2b03 100644
> --- a/drivers/pci/host/pcie-rockchip.c
> +++ b/drivers/pci/host/pcie-rockchip.c
> @@ -1237,7 +1237,7 @@ static int rockchip_pcie_wait_l2(struct rockchip_pcie *rockchip)
>  	return 0;
>  }
>  
> -static int rockchip_pcie_suspend_noirq(struct device *dev)
> +static int __maybe_unused rockchip_pcie_suspend_noirq(struct device *dev)
>  {
>  	struct rockchip_pcie *rockchip = dev_get_drvdata(dev);
>  	int ret;
> @@ -1264,7 +1264,7 @@ static int rockchip_pcie_suspend_noirq(struct device *dev)
>  	return ret;
>  }
>  
> -static int rockchip_pcie_resume_noirq(struct device *dev)
> +static int __maybe_unused rockchip_pcie_resume_noirq(struct device *dev)
>  {
>  	struct rockchip_pcie *rockchip = dev_get_drvdata(dev);
>  	int err;
> -- 
> 2.9.0
> 
> 
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[PATCH] PCI: rockchip: mark PM functions as __maybe_unused Arnd Bergmann <arnd@arndb.de> - 2017-01-20 17:30 +0100
  Re: [PATCH] PCI: rockchip: mark PM functions as __maybe_unused Shawn Lin <shawn.lin@rock-chips.com> - 2017-01-22 08:40 +0100
  Re: [PATCH] PCI: rockchip: mark PM functions as __maybe_unused Bjorn Helgaas <helgaas@kernel.org> - 2017-01-30 22:00 +0100

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