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From: AKASHI Takahiro <takahiro.akashi@linaro.org>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Linux-Next Mailing List <linux-next@vger.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Ard Biesheuvel <ard.biesheuvel@linaro.org>
Subject: Re: linux-next: build warning after merge of the arm64 tree
Date: Tue, 24 Jul 2018 09:26:31 +0900	[thread overview]
Message-ID: <20180724002630.GV11258@linaro.org> (raw)
In-Reply-To: <20180724090545.2270d975@canb.auug.org.au>

On Tue, Jul 24, 2018 at 09:05:45AM +1000, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the arm64 tree, today's linux-next build (x86_64
> allmodconfig) produced this warning:

Where can I find this specific branch?

> drivers/acpi/Kconfig:6:error: recursive dependency detected!
> drivers/acpi/Kconfig:6:	symbol ACPI depends on EFI

My patch created an additional dependency like:
  menu ACPI
    ...
    depends on IA64 || X86 || (ARM64 && EFI)

> arch/x86/Kconfig:1920:	symbol EFI depends on ACPI

So I don't understand why this change makes a warning on x86_64 build.
Is this a real recursive dependency?

Thanks,
-Takahiro AKASHI

> For a resolution refer to Documentation/kbuild/kconfig-language.txt
> subsection "Kconfig recursive dependency limitations"
> 
> Introduced by commit
> 
>   5bcd44083a08 ("drivers: acpi: add dependency of EFI for arm64")
> 
> -- 
> Cheers,
> Stephen Rothwell

  reply	other threads:[~2018-07-24  0:26 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-23 23:05 linux-next: build warning after merge of the arm64 tree Stephen Rothwell
2018-07-24  0:26 ` AKASHI Takahiro [this message]
2018-07-24  8:12   ` Arnd Bergmann
2018-07-24  9:30     ` Ard Biesheuvel
  -- strict thread matches above, loose matches on Subject: below --
2022-03-09 11:34 Stephen Rothwell
2022-03-09 12:18 ` Will Deacon
2022-07-07  9:57 Stephen Rothwell
2022-07-07 10:28 ` Will Deacon
2023-06-13  6:23 Stephen Rothwell
2023-06-13 15:59 ` Catalin Marinas
2023-10-24  6:24 Stephen Rothwell
2023-10-24  9:55 ` Catalin Marinas
2023-10-24 13:42   ` Ard Biesheuvel
2023-10-24 16:14     ` Catalin Marinas

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