linux-kernel - Re: [PATCH] [RESEND] usb: xhci: tegra: mark PM functions as __maybe

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Date:   Tue, 5 Oct 2021 13:06:47 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Mathias Nyman <mathias.nyman@...el.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        JC Kuo <jckuo@...dia.com>, Arnd Bergmann <arnd@...db.de>,
        Yang Yingliang <yangyingliang@...wei.com>,
        Petr Mladek <pmladek@...e.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        linux-usb@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [RESEND] usb: xhci: tegra: mark PM functions as
 __maybe_unused

On Mon, Sep 27, 2021 at 04:22:52PM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> The added #ifdefs in the PM rework were almost correct, but still
> cause warnings in some randconfig builds:
> 
> drivers/usb/host/xhci-tegra.c:2147:12: error: 'tegra_xusb_resume' defined but not used [-Werror=unused-function]
>  2147 | static int tegra_xusb_resume(struct device *dev)
>       |            ^~~~~~~~~~~~~~~~~
> drivers/usb/host/xhci-tegra.c:2105:12: error: 'tegra_xusb_suspend' defined but not used [-Werror=unused-function]
>  2105 | static int tegra_xusb_suspend(struct device *dev)
> 
> Replace the #ifdef checks with simpler __maybe_unused annotations to
> reliably shut up these warnings.
> 
> Fixes: d64d362f1d8b ("usb: xhci: tegra: Enable ELPG for runtime/system PM")

What tree does this commit come in from?  I don't see it in my usb tree
:(

thanks,

greg k-h