linux-kernel - Re: [PATCH V3 1/7] firmware: imx: Add stubs for !CONFIG_IMX

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Date:   Mon, 9 Mar 2020 18:30:54 +0100
From:   Alexandre Belloni <alexandre.belloni@...tlin.com>
To:     Guenter Roeck <linux@...ck-us.net>
Cc:     Anson Huang <Anson.Huang@....com>, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, festevam@...il.com,
        dmitry.torokhov@...il.com, a.zummo@...ertech.it,
        rui.zhang@...el.com, daniel.lezcano@...aro.org,
        amit.kucheria@...durent.com, wim@...ux-watchdog.org,
        daniel.baluta@....com, gregkh@...uxfoundation.org,
        linux@...pel-privat.de, tglx@...utronix.de,
        m.felsch@...gutronix.de, andriy.shevchenko@...ux.intel.com,
        arnd@...db.de, ronald@...ovation.ch, krzk@...nel.org,
        robh@...nel.org, leonard.crestez@....com, aisheng.dong@....com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-input@...r.kernel.org, linux-rtc@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-watchdog@...r.kernel.org,
        Linux-imx@....com
Subject: Re: [PATCH V3 1/7] firmware: imx: Add stubs for !CONFIG_IMX_SCU case

On 09/03/2020 10:10:12-0700, Guenter Roeck wrote:
> On Mon, Mar 09, 2020 at 05:47:05PM +0100, Alexandre Belloni wrote:
> > On 09/03/2020 06:27:06-0700, Guenter Roeck wrote:
> > > On 3/9/20 4:06 AM, Alexandre Belloni wrote:
> > > > On 09/03/2020 08:38:14+0800, Anson Huang wrote:
> > > >> Add stubs for those i.MX SCU APIs to make those modules depending
> > > >> on IMX_SCU can pass build when COMPILE_TEST is enabled.
> > > >>
> > > >> Signed-off-by: Anson Huang <Anson.Huang@....com>
> > > >> ---
> > > >> Changes since V2:
> > > >> 	- return error for stubs.
> > > > 
> > > > I'm not sure why you are sending v3 with the stubs as we determined that
> > > > 2/7 is enough to compile all the drivers with COMPILE_TEST.
> > > > 
> > > > 
> > > 2/7 alone is not sufficient. With only 2/7, one can explicitly configure
> > > IMX_SCU=n, COMPILE_TEST=y, and get lots of compile failures. Granted,
> > > one should not do that, but 0day does (I don't know if that is the result
> > > of RANDCONFIG), and I am not looking forward having to deal with the
> > > fallout.
> > > 
> > 
> > How would that be possible if the drivers all depend on IMX_SCU?
> > 
> That dependency is being changed to IMX_SCU || COMPILE_TEST
> as part of the series.
> 

Yes, my point is that those patches should not be applied at all, only
2/7.


-- 
Alexandre Belloni, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com