linux-kernel - Re: [PATCH] scsi: ufs: Add select to CONFIG

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Date:   Mon, 20 Feb 2023 14:58:27 +0100
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Stephen Zhang <starzhangzsd@...il.com>, jejb@...ux.ibm.com,
        artin.petersen@...cle.com, matthias.bgg@...il.com,
        beanhuo@...ron.com, bvanassche@....org, avri.altman@....com,
        yoshihiro.shimoda.uh@...esas.com
Cc:     linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, zhangshida@...inos.cn,
        k2ci <kernel-bot@...inos.cn>
Subject: Re: [PATCH] scsi: ufs: Add select to CONFIG_PM in Kconfig

Il 20/02/23 09:32, Stephen Zhang ha scritto:
> From: Shida Zhang <zhangshida@...inos.cn>
> 
> From: Shida Zhang <zhangshida@...inos.cn>
> 
> In a configuration with CONFIG_SCSI_UFS_MEDIATEK set to 'm' and
> CONFIG_PM set to 'n', errors occur at compile time:
> 
> ====
> ../drivers/ufs/host/ufs-mediatek.c: In function ‘ufs_mtk_runtime_suspend’:
> ../drivers/ufs/host/ufs-mediatek.c:1621:8: error: implicit declaration of function ‘ufshcd_runtime_suspend’; did you mean ‘ufs_mtk_runtime_suspend’? [-Werror=implicit-function-declaration]
> ../drivers/ufs/host/ufs-mediatek.c: In function ‘ufs_mtk_runtime_resume’:
> ../drivers/ufs/host/ufs-mediatek.c:1636:9: error: implicit declaration of function ‘ufshcd_runtime_resume’; did you mean ‘ufs_mtk_runtime_resume’? [-Werror=implicit-function-declaration]
> ====
> 

That's wrong. This driver should be made to compile for both !CONFIG_PM
and CONFIG_PM.

Regards,
Angelo

> This patch fixes these by selecting CONFIG_PM from CONFIG_SCSI_UFS_MEDIATEK.
> 
> Reported-by: k2ci <kernel-bot@...inos.cn>
> Signed-off-by: Shida Zhang <zhangshida@...inos.cn>
> ---
>   drivers/ufs/host/Kconfig | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/ufs/host/Kconfig b/drivers/ufs/host/Kconfig
> index 4cc2dbd79ed0..f9786f085b54 100644
> --- a/drivers/ufs/host/Kconfig
> +++ b/drivers/ufs/host/Kconfig
> @@ -71,6 +71,7 @@ config SCSI_UFS_QCOM
>   config SCSI_UFS_MEDIATEK
>   	tristate "Mediatek specific hooks to UFS controller platform driver"
>   	depends on SCSI_UFSHCD_PLATFORM && ARCH_MEDIATEK
> +	select PM
>   	select PHY_MTK_UFS
>   	select RESET_TI_SYSCON
>   	help