linux-kernel - Re: [PATCH 1/2] arch: consolidate CONFIG_STRICT

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Message-ID: <20151123081235.GA23661@gmail.com>
Date:	Mon, 23 Nov 2015 09:12:35 +0100
From:	Ingo Molnar <mingo@...nel.org>
To:	Dan Williams <dan.j.williams@...el.com>
Cc:	linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
	Russell King <linux@....linux.org.uk>,
	Kees Cook <keescook@...omium.org>,
	Arnd Bergmann <arnd@...db.de>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Catalin Marinas <catalin.marinas@....com>,
	linux-nvdimm@...ts.01.org,
	Heiko Carstens <heiko.carstens@...ibm.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Will Deacon <will.deacon@....com>,
	Ingo Molnar <mingo@...hat.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"David S. Miller" <davem@...emloft.net>,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/2] arch: consolidate CONFIG_STRICT_DEVM in
 lib/Kconfig.debug


* Dan Williams <dan.j.williams@...el.com> wrote:

> Let all the archs that implement CONFIG_STRICT_DEVM use a common
> definition in lib/Kconfig.debug.

For the x86 bit:

Acked-by: Ingo Molnar <mingo@...nel.org>

> Note, the 'depends on !SPARC' is due to sparc not implementing
> devmem_is_allowed().

Maybe that should be converted into a helper Kconfig switch for architectures to 
opt in to /dev/mem restrictions?

Thanks,

	Ingo
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