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Date: Wed, 14 Mar 2018 09:30:48 +0100
From: Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH v3 2/2] kbuild: Don't mess with the .cache.mk when root
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To: Ingo Molnar <mingo@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>, Doug Anderson <dianders@chromium.org>, Nick Desaulniers <ndesaulniers@google.com>, Masahiro Yamada <yamada.masahiro@socionext.com>, Mathieu Malaterre <malat@debian.org>, Dave Hansen <dave.hansen@intel.com>, Yang Shi <yang.s@alibaba-inc.com>, Guenter Roeck <linux@roeck-us.net>, Matthias Kaehlcke <mka@chromium.org>, Cao jin <caoj.fnst@cn.fujitsu.com>, Arnd Bergmann <arnd@arndb.de>, Mark Charlebois <charlebm@gmail.com>, Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>, LKML <linux-kernel@vger.kernel.org>, Michal Marek <michal.lkml@markovi.net>, Thomas Gleixner <tglx@linutronix.de>

On Wed, Mar 14, 2018 at 08:23:16AM +0100, Ingo Molnar wrote:
> 
> * Linus Torvalds <torvalds@linux-foundation.org> wrote:
> 
> > If Ingo wants to build as root, maybe we could even make him set some
> > environment flag to avoid errors.
> 
> I only build as root infrequently, but I think PeterZ does it more frequently?

Yeah, a bunch of my testboxes don't even have a regular user account.