linux-kernel - Re: linux-next: Tree for May 25 (x86: NR

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Date:   Wed, 26 May 2021 09:08:44 +0200
From:   Ingo Molnar <mingo@...nel.org>
To:     Randy Dunlap <rdunlap@...radead.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>,
        X86 ML <x86@...nel.org>
Subject: Re: linux-next: Tree for May 25 (x86: NR_CPUS undeclared)


* Randy Dunlap <rdunlap@...radead.org> wrote:

> On 5/24/21 11:39 PM, Stephen Rothwell wrote:
> > Hi all,
> > 
> > Changes since 20210524:
> > 
> 
> on x86_64, there can be +/- 100 build errors like so:
> 
> ../arch/x86/include/asm/fixmap.h:103:48: error: 'NR_CPUS' undeclared here (not in a function); did you mean 'NR_OPEN'?
>   FIX_KMAP_END = FIX_KMAP_BEGIN + (KM_MAX_IDX * NR_CPUS) - 1,
>                                                 ^~~~~~~
>                                                 NR_OPEN
> 
> Fix is here:
> https://lore.kernel.org/lkml/20210521195918.2183-1-rdunlap@infradead.org/

This came into -next via a stray header dependencies patch in -mm.

I followed up in that thread, but I'm somewhat worried that the complexity 
of header dependencies are not going in the right direction in that group 
of headers. ;-)

Thanks,

	Ingo