linux-kernel - Re: [PATCH 04/25] ASoC: rockchip: remove unnecessary CONFIG_PM

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Message-ID: <20201029142325.mhq6azowlyuurhtl@Rk>
Date:   Thu, 29 Oct 2020 22:23:25 +0800
From:   Coiby Xu <coiby.xu@...il.com>
To:     Robin Murphy <robin.murphy@....com>
Cc:     Jaroslav Kysela <perex@...ex.cz>, Takashi Iwai <tiwai@...e.com>,
        "moderated list:SOUND - SOC LAYER / DYNAMIC AUDIO POWER MANAGEM..." 
        <alsa-devel@...a-project.org>, Heiko Stuebner <heiko@...ech.de>,
        Liam Girdwood <lgirdwood@...il.com>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:ARM/Rockchip SoC support" 
        <linux-rockchip@...ts.infradead.org>,
        Mark Brown <broonie@...nel.org>,
        "moderated list:ARM/Rockchip SoC support" 
        <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 04/25] ASoC: rockchip: remove unnecessary CONFIG_PM_SLEEP

On Thu, Oct 29, 2020 at 10:33:52AM +0000, Robin Murphy wrote:
>On 2020-10-29 07:42, Coiby Xu wrote:
>>SET_SYSTEM_SLEEP_PM_OPS has already took good care of CONFIG_PM_CONFIG.
>
>I don't see anything in the !CONFIG_PM_CONFIG side of
>SET_SYSTEM_SLEEP_PM_OPS() that prevents unused function warnings for
>the callbacks - does this change depend on some other patch or is it
>just wrong?
>
Thank you for the feedback! I'll add "__maybe_unused" in v2.

>Robin.
>
>>Signed-off-by: Coiby Xu <coiby.xu@...il.com>
>>---
>>  sound/soc/rockchip/rockchip_pdm.c | 2 --
>>  1 file changed, 2 deletions(-)
>>
>>diff --git a/sound/soc/rockchip/rockchip_pdm.c b/sound/soc/rockchip/rockchip_pdm.c
>>index 5adb293d0435..f3c19310aeeb 100644
>>--- a/sound/soc/rockchip/rockchip_pdm.c
>>+++ b/sound/soc/rockchip/rockchip_pdm.c
>>@@ -574,7 +574,6 @@ static int rockchip_pdm_remove(struct platform_device *pdev)
>>  	return 0;
>>  }
>>-#ifdef CONFIG_PM_SLEEP
>>  static int rockchip_pdm_suspend(struct device *dev)
>>  {
>>  	struct rk_pdm_dev *pdm = dev_get_drvdata(dev);
>>@@ -601,7 +600,6 @@ static int rockchip_pdm_resume(struct device *dev)
>>  	return ret;
>>  }
>>-#endif
>>  static const struct dev_pm_ops rockchip_pdm_pm_ops = {
>>  	SET_RUNTIME_PM_OPS(rockchip_pdm_runtime_suspend,
>>

--
Best regards,
Coiby