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Date:   Tue, 12 Feb 2019 16:13:54 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     Nick Crews <ncrews@...omium.org>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Duncan Laurie <dlaurie@...omium.org>
Subject: Re: linux-next: Tree for Feb 12 (chrome/wilco_ec/)

On 2/12/19 3:49 PM, Nick Crews wrote:
> OK, here is the patch to fix this problem. We had the dependency backwards.
> 
> Should I re-send out the entire patch series to the LKML with this fix in it?
> 
> 
> diff --git a/drivers/platform/chrome/Kconfig b/drivers/platform/chrome/Kconfig
> index 462eb9dfa4f2..b69561050868 100644
> --- a/drivers/platform/chrome/Kconfig
> +++ b/drivers/platform/chrome/Kconfig
> @@ -95,7 +95,7 @@ config CROS_EC_LPC
>  
>  config CROS_EC_LPC_MEC
>         bool "ChromeOS Embedded Controller LPC Microchip EC (MEC) variant"
> -       depends on CROS_EC_LPC || WILCO_EC
> +       depends on CROS_EC_LPC
>         default n
>         help
>           If you say Y here, a variant LPC protocol for the Microchip EC
> diff --git a/drivers/platform/chrome/wilco_ec/Kconfig b/drivers/platform/chrome/wilco_ec/Kconfig
> index d8e2cddb4712..6ea2d3f64ce5 100644
> --- a/drivers/platform/chrome/wilco_ec/Kconfig
> +++ b/drivers/platform/chrome/wilco_ec/Kconfig
> @@ -1,6 +1,6 @@
>  config WILCO_EC
>         tristate "ChromeOS Wilco Embedded Controller"
> -       depends on ACPI && X86
> +       depends on ACPI && X86 && CROS_EC_LPC_MEC
>         select CROS_EC_LPC_MEC
>         help
>           If you say Y here, you get support for talking to the ChromeOS
> 
> 

Nick,

Did you test this?

When I apply the patch (by hand, since it was whitespace-mangled/damaged),
I get this:

rdunlap@...way:linux-next-20190212> make ARCH=x86_64 O=X64 oldconfig
make[1]: Entering directory '/home/rdunlap/lnx/next/linux-next-20190212/X64'
  GEN     Makefile
scripts/kconfig/conf  --oldconfig Kconfig
drivers/platform/chrome/Kconfig:84:error: recursive dependency detected!
drivers/platform/chrome/Kconfig:84:	symbol CROS_EC_LPC_MEC is selected by WILCO_EC
drivers/platform/chrome/wilco_ec/Kconfig:1:	symbol WILCO_EC depends on CROS_EC_LPC_MEC
For a resolution refer to Documentation/kbuild/kconfig-language.txt
subsection "Kconfig recursive dependency limitations"




-- 
~Randy

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