linux-kernel - Re: [PATCH -next] dmaengine: tegra-apb: mark PM functions as __maybe

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Date:   Fri, 20 Mar 2020 16:11:10 +0100
From:   Thierry Reding <thierry.reding@...il.com>
To:     YueHaibing <yuehaibing@...wei.com>
Cc:     ldewangan@...dia.com, jonathanh@...dia.com,
        dan.j.williams@...el.com, vkoul@...nel.org, swarren@...dotorg.org,
        dmaengine@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org, digetx@...il.com
Subject: Re: [PATCH -next] dmaengine: tegra-apb: mark PM functions as
 __maybe_unused

On Fri, Mar 20, 2020 at 03:13:37PM +0800, YueHaibing wrote:
> When CONFIG_PM is disabled, gcc warning this:
> 
> drivers/dma/tegra20-apb-dma.c:1587:12: warning: 'tegra_dma_runtime_resume' defined but not used [-Wunused-function]
> drivers/dma/tegra20-apb-dma.c:1578:12: warning: 'tegra_dma_runtime_suspend' defined but not used [-Wunused-function]
> 
> Make it as __maybe_unused to fix the warnings,
> also remove unneeded function declarations.
> 
> Fixes: ec8a1586780c ("dma: tegra: add dmaengine based dma driver")
> Signed-off-by: YueHaibing <yuehaibing@...wei.com>
> ---
>  drivers/dma/tegra20-apb-dma.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)

Acked-by: Thierry Reding <treding@...dia.com>

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