linux-kernel - Re: [PATCH v1 1/2] PCI: dwc: Clean up Kconfig dependencies (PCIE_DW

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Message-ID: <20210805135234.GA22410@lpieralisi>
Date:   Thu, 5 Aug 2021 14:52:34 +0100
From:   Lorenzo Pieralisi <lorenzo.pieralisi@....com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:     linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        Rob Herring <robh@...nel.org>,
        Krzysztof Wilczyński <kw@...ux.com>,
        Bjorn Helgaas <bhelgaas@...gle.com>
Subject: Re: [PATCH v1 1/2] PCI: dwc: Clean up Kconfig dependencies
 (PCIE_DW_HOST)

On Wed, Jun 23, 2021 at 05:01:02PM +0300, Andy Shevchenko wrote:
> First of all, the "depends on" is no-op in the selectable options.
> Second, no need to repeat menu dependencies (PCI).

I believe you need to rewrite the commit log in a more descriptive
way - as it is it is not very descriptive.

Define which specific "depends on" you are referring to.

I appreciate the intent and I believe the patch is sound.

> Clean up the users of PCIE_DW_HOST and introduce idiom
> 
> 	depends on PCI_MSI_IRQ_DOMAIN
> 	select PCIE_DW_HOST
> 
> for all of them.

"All of them" ? We need something more explicit for this log
to be useful, it took me a while to understand the end result
you are achieving.

Thanks,
Lorenzo

> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
>  drivers/pci/controller/dwc/Kconfig | 9 ++++-----
>  1 file changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig
> index 423d35872ce4..9bfd41eadd5e 100644
> --- a/drivers/pci/controller/dwc/Kconfig
> +++ b/drivers/pci/controller/dwc/Kconfig
> @@ -8,7 +8,6 @@ config PCIE_DW
>  
>  config PCIE_DW_HOST
>  	bool
> -	depends on PCI_MSI_IRQ_DOMAIN
>  	select PCIE_DW
>  
>  config PCIE_DW_EP
> @@ -22,8 +21,8 @@ config PCI_DRA7XX
>  config PCI_DRA7XX_HOST
>  	bool "TI DRA7xx PCIe controller Host Mode"
>  	depends on SOC_DRA7XX || COMPILE_TEST
> -	depends on PCI_MSI_IRQ_DOMAIN
>  	depends on OF && HAS_IOMEM && TI_PIPE3
> +	depends on PCI_MSI_IRQ_DOMAIN
>  	select PCIE_DW_HOST
>  	select PCI_DRA7XX
>  	default y if SOC_DRA7XX
> @@ -55,7 +54,7 @@ config PCIE_DW_PLAT
>  
>  config PCIE_DW_PLAT_HOST
>  	bool "Platform bus based DesignWare PCIe Controller - Host mode"
> -	depends on PCI && PCI_MSI_IRQ_DOMAIN
> +	depends on PCI_MSI_IRQ_DOMAIN
>  	select PCIE_DW_HOST
>  	select PCIE_DW_PLAT
>  	help
> @@ -138,8 +137,8 @@ config PCI_LAYERSCAPE
>  	bool "Freescale Layerscape PCIe controller - Host mode"
>  	depends on OF && (ARM || ARCH_LAYERSCAPE || COMPILE_TEST)
>  	depends on PCI_MSI_IRQ_DOMAIN
> -	select MFD_SYSCON
>  	select PCIE_DW_HOST
> +	select MFD_SYSCON
>  	help
>  	  Say Y here if you want to enable PCIe controller support on Layerscape
>  	  SoCs to work in Host mode.
> @@ -244,8 +243,8 @@ config PCIE_HISI_STB
>  
>  config PCI_MESON
>  	tristate "MESON PCIe controller"
> -	depends on PCI_MSI_IRQ_DOMAIN
>  	default m if ARCH_MESON
> +	depends on PCI_MSI_IRQ_DOMAIN
>  	select PCIE_DW_HOST
>  	help
>  	  Say Y here if you want to enable PCI controller support on Amlogic
> -- 
> 2.30.2
>