linux-kernel - Re: [PATCH] spi: tegra20: fix build with CONFIG_PM

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Date:   Wed, 13 Oct 2021 08:42:41 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Arnd Bergmann <arnd@...nel.org>
Cc:     Laxman Dewangan <ldewangan@...dia.com>,
        Mark Brown <broonie@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Arnd Bergmann <arnd@...db.de>,
        Dmitry Osipenko <digetx@...il.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Zhang Qilong <zhangqilong3@...wei.com>,
        Yang Yingliang <yangyingliang@...wei.com>,
        linux-spi@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] spi: tegra20: fix build with CONFIG_PM_SLEEP=n

On Wed, Oct 13, 2021 at 04:45:23PM +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@...db.de>
> 
> There is another one of these warnings:
> 
> drivers/spi/spi-tegra20-slink.c:1197:12: error: 'tegra_slink_runtime_resume' defined but not used [-Werror=unused-function]
>  1197 | static int tegra_slink_runtime_resume(struct device *dev)
>       |            ^~~~~~~~~~~~~~~~~~~~~~~~~~
> 
> Give it the same treatment as the other functions in this file.
> 
> Fixes: efafec27c565 ("spi: Fix tegra20 build with CONFIG_PM=n")
> Fixes: 2bab94090b01 ("spi: tegra20-slink: Declare runtime suspend and resume functions conditionally")
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  drivers/spi/spi-tegra20-slink.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c
> index 713292b0c71e..33302f6b42d7 100644
> --- a/drivers/spi/spi-tegra20-slink.c
> +++ b/drivers/spi/spi-tegra20-slink.c
> @@ -1194,7 +1194,7 @@ static int __maybe_unused tegra_slink_runtime_suspend(struct device *dev)
>  	return 0;
>  }
>  
> -static int tegra_slink_runtime_resume(struct device *dev)
> +static __maybe_unused int tegra_slink_runtime_resume(struct device *dev)

That was actually done in efafec27c565. The error is the result of a bad
conflict resolution against 2bab94090b01, not a result of any of the
two patches listed in the Fixes: tags. So, yes, either this patch needs
to be applied in -next or the conflict resolution needs to be fixed.

Reviewed-by: Guenter Roeck <linux@...ck-us.net>

Guenter

>  {
>  	struct spi_master *master = dev_get_drvdata(dev);
>  	struct tegra_slink_data *tspi = spi_master_get_devdata(master);
> -- 
> 2.29.2
>