linux-kernel - Re: [PATCH v1] kbuild: Disable compile testing if HAVE_LEGACY

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Date:   Wed, 26 May 2021 00:29:37 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Tony Lindgren <tony@...mide.com>,
        Arnd Bergmann <arnd@...db.de>,
        Paul Burton <paul.burton@...s.com>,
        John Crispin <john@...ozen.org>,
        "open list:BROADCOM NVRAM DRIVER" <linux-mips@...r.kernel.org>,
        Linux ARM <linux-arm-kernel@...ts.infradead.org>,
        linux-m68k <linux-m68k@...ts.linux-m68k.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-tegra <linux-tegra@...r.kernel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        "open list:TI ETHERNET SWITCH DRIVER (CPSW)" 
        <linux-omap@...r.kernel.org>
Subject: Re: [PATCH v1] kbuild: Disable compile testing if HAVE_LEGACY_CLK
 enabled

25.05.2021 15:19, Geert Uytterhoeven пишет:
...
>>> There 3 possible solutions:
>>>
>>> 1. Factor out COMMON_CLK from HAVE_LEGACY_CLK, if this is possible
>>> 2. Build stubs universally, maybe using weak functions.
>>
>> I vote for this one - global stubs.
> 
> Yep.
> 
>> Or for a new one:
>> 4. Disable COMPILE_TEST for specific platforms (mentioned in commit
>> msg). Eventually could be like:
>> config RALINK
>>         depends !COMPILE_TEST || (COMPILE_TEST && COMMON_CLK)
> 
> That's a neat idea!
> 
> Of course there's a fifth option:
> 
> 5. Convert legacy platforms to COMMON_CLK.
> 
> Which is already happening for ARM EP93XX.

I'll try to take a closer look at alternative options, thank you for
yours input.