linux-kernel - RE: [PATCH 2/2] net: ethernet: Add driver for Sunplus SP7021

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Date:   Thu, 4 Nov 2021 17:51:11 +0000
From:   Wells Lu 呂芳騰 <wells.lu@...plus.com>
To:     Randy Dunlap <rdunlap@...radead.org>, Andrew Lunn <andrew@...n.ch>
CC:     Wells Lu <wellslutw@...il.com>,
        "davem@...emloft.net" <davem@...emloft.net>,
        "kuba@...nel.org" <kuba@...nel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>
Subject: RE: [PATCH 2/2] net: ethernet: Add driver for Sunplus SP7021

> On 11/4/21 5:59 AM, Andrew Lunn wrote:
> > On Thu, Nov 04, 2021 at 05:31:57AM +0000, Wells Lu 呂芳騰 wrote:
> >> Hi,
> >>
> >> Thanks a lot for review.
> >>
> >>>
> >>>> config NET_VENDOR_SUNPLUS
> >>>> 	bool "Sunplus devices"
> >>>> 	default y
> >>>> 	depends on ARCH_SUNPLUS
> >>>
> >>> Does it actually depend on ARCH_SUNPLUS? What do you make use of?
> >>
> >> ARCH_SUNPLUS will be defined for Sunplus family series SoC.
> >> Ethernet devices of Sunplus are designed and used for Sunplus SoC.
> >> So far, only two SoC of Sunplus have the network device.
> >> I'd like to show up the selection only for Sunplus SoC.
> >
> > So it does not actually depend on ARCH_SUNPLUS. There are a few cases
> > where drivers have needed to call into arch specific code, which stops
> > them building for any other arch.
> >
> >>> Ideally, you want it to also build with COMPILE_TEST, so that the
> >>> driver gets build by 0-day and all the other build bots.
> >>
> >> I am not sure if this is mandatory or not.
> >> Should I add COMPILE_TEST as below?
> >>
> >> 	depends on ARCH_SUNPLUS | COMPILE_TEST
> >
> > Yes.
> 
> Yes, but use "||" instead of one "|".
> 
> >
> >> Yes, the device is now only for Sunplus SP7021 SoC.
> >> Devices in each SoC may have a bit difference because of adding new
> >> function or improving something.
> >
> > If it will compile with COMPILE_TEST on x86, mips, etc, you should
> > allow it to compile with COMPILE_TEST. You get better compile testing
> > that way.
> >
> >       Andrew
> >
> 
> 
> --
> ~Randy

I will do it in PATCH v2.

Thanks,