linux-kernel - Re: linux-next: build warnings after merge of the char-misc tree

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Date:   Mon, 14 Nov 2022 08:33:41 +0100
From:   "Arnd Bergmann" <arnd@...db.de>
To:     "Stephen Rothwell" <sfr@...b.auug.org.au>,
        "Greg KH" <greg@...ah.com>
Cc:     "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
        "Liu Ying" <victor.liu@....com>,
        "Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
        linux-next <linux-next@...r.kernel.org>
Subject: Re: linux-next: build warnings after merge of the char-misc tree

On Mon, Nov 14, 2022, at 08:17, Stephen Rothwell wrote:
> Hi all,
>
> After merging the char-misc tree, today's linux-next build (powerpc
> allnoconfig) produced these warnings:
>
> drivers/bus/simple-pm-bus.c:96:12: warning: 
> 'simple_pm_bus_runtime_resume' defined but not used [-Wunused-function]
>    96 | static int simple_pm_bus_runtime_resume(struct device *dev)
>       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
> drivers/bus/simple-pm-bus.c:87:12: warning: 
> 'simple_pm_bus_runtime_suspend' defined but not used [-Wunused-function]
>    87 | static int simple_pm_bus_runtime_suspend(struct device *dev)
>       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Introduced by commit
>
>   882cf4c913d7 ("drivers: bus: simple-pm-bus: Use clocks")

I see that this is caused by the patch using the old-style
SET_RUNTIME_PM_OPS/SET_NOIRQ_SYSTEM_SLEEP_PM_OPS macros
instead of the correct SYSTEM_SLEEP_PM_OPS/NOIRQ_SYSTEM_SLEEP_PM_OPS
versions.

     Arnd