netdev - Re: [PATCH] can: m_can: mark runtime-PM handlers as __maybe

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Message-ID: <54b08b88-493f-a39e-db00-194ba91dcedf@pengutronix.de>
Date:   Thu, 18 Jan 2018 14:16:37 +0100
From:   Marc Kleine-Budde <mkl@...gutronix.de>
To:     Arnd Bergmann <arnd@...db.de>,
        Wolfgang Grandegger <wg@...ndegger.com>
Cc:     Mario Huettel <mario.huettel@....net>,
        Faiz Abbas <faiz_abbas@...com>,
        Oliver Hartkopp <socketcan@...tkopp.net>,
        Quentin Schulz <quentin.schulz@...e-electrons.com>,
        Franklin S Cooper Jr <fcooper@...com>,
        linux-can@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] can: m_can: mark runtime-PM handlers as __maybe_unused

On 01/18/2018 02:04 PM, Arnd Bergmann wrote:
> Building without CONFIG_PM results in a harmless warning:
> 
> drivers/net/can/m_can/m_can.c:1763:12: error: 'm_can_runtime_resume' defined but not used [-Werror=unused-function]
> drivers/net/can/m_can/m_can.c:1752:12: error: 'm_can_runtime_suspend' defined but not used [-Werror=unused-function]
> 
> Marking the functions as __maybe_unused lets the compiler
> silently drop them instead.
> 
> Fixes: cdf8259d6573 ("can: m_can: Add PM Support")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>

Tnx - applied.

However all archs using this driver have mandatory PM support and the
driver depends on it.

Marc

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