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From: Ingo Molnar <mingo@kernel.org>
To: Douglas Anderson <dianders@chromium.org>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>,
	malat@debian.org, dave.hansen@intel.com, yang.s@alibaba-inc.com,
	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@vger.kernel.org, linux-kernel@vger.kernel.org,
	Michal Marek <michal.lkml@markovi.net>,
	Nick Desaulniers <ndesaulniers@google.com>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH v3 2/2] kbuild: Don't mess with the .cache.mk when root
Date: Tue, 13 Mar 2018 07:16:03 +0100	[thread overview]
Message-ID: <20180313061603.jsgiumet23uqi6hl@gmail.com> (raw)
In-Reply-To: <20180313061109.72629-3-dianders@chromium.org>


* Douglas Anderson <dianders@chromium.org> wrote:

> +# Don't create Makefile caches if running as root since they can't be deleted
> +# easily; in the real world we might be root when doing "sudo make install"
> +ifeq ($(shell id -u),0)
> +export KBUILD_NOCACHE := 1
> +endif

Please don't do this - many prominent kernel developers build their kernels as 
root - this makes the build slower for them, and also bifurcates testing.

Thanks,

	Ingo

  reply	other threads:[~2018-03-13  6:16 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-03-13  6:11 [PATCH v3 0/2] kbuild: Fix corner caches with .cache.mk Douglas Anderson
2018-03-13  6:11 ` [PATCH v3 1/2] kbuild: Require a 'make clean' if we detect gcc changed underneath us Douglas Anderson
2018-03-13  6:11 ` [PATCH v3 2/2] kbuild: Don't mess with the .cache.mk when root Douglas Anderson
2018-03-13  6:16   ` Ingo Molnar [this message]
2018-03-13  6:23     ` Doug Anderson
2018-03-13 16:33       ` Nick Desaulniers
2018-03-13 16:44         ` Doug Anderson
2018-03-13 17:39           ` Linus Torvalds
2018-03-13 23:42             ` Doug Anderson
2018-03-14  7:23             ` Ingo Molnar
2018-03-14  8:30               ` Peter Zijlstra
2018-03-13  7:49 ` [PATCH v3 0/2] kbuild: Fix corner caches with .cache.mk Masahiro Yamada
2018-03-13 16:37   ` Doug Anderson

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