linux-kernel - Re: [PATCH 0/2] make kASLR vs hibernation boot-time selectable

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Message-ID: <539C7B2F.9070800@zytor.com>
Date:	Sat, 14 Jun 2014 09:41:19 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Kees Cook <keescook@...omium.org>
CC:	Pavel Machek <pavel@....cz>, LKML <linux-kernel@...r.kernel.org>,
	Randy Dunlap <rdunlap@...radead.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"x86@...nel.org" <x86@...nel.org>, Len Brown <len.brown@...el.com>,
	Wei Yongjun <yongjun_wei@...ndmicro.com.cn>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	linux-pm@...r.kernel.org
Subject: Re: [PATCH 0/2] make kASLR vs hibernation boot-time selectable

On 06/13/2014 05:39 PM, Rafael J. Wysocki wrote:
>  
> -#define RESTORE_MAGIC	0x0123456789ABCDEFUL
> +#define RESTORE_MAGIC	0x0123456789ABCDF0UL
>  

<bikeshed>

Please don't pick numbers like this for magic numbers... *everyone else
does, too.*  In general, picking a random number is a good starting
point; for extra bonus make sure it has at least one invalid UTF-8
sequence in it (so it cannot be confused with either ASCII or UTF-8 text.)

</bikeshed>

	-hpa

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