From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ian Campbell <ijc@hellion.org.uk>
Subject: Re: [PATCH] ACPI: replace strlen("string") with sizeof("string") -1
Date: Mon, 30 Jul 2012 15:26:13 +0100
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To: Len Brown <lenb@kernel.org>
Cc: Alan Stern <stern@rowland.harvard.edu>, linux-acpi@vger.kernel.org, linux-pm@lists.linux-foundation.org, Pavel Vasilyev <pavel@pavlinux.ru>, linux-kernel@vger.kernel.org, Len Brown <len.brown@intel.com>

On Thu, 2012-07-26 at 21:39 -0400, Len Brown wrote:
> ...both give the number of chars in the string
> without the '\0', as strncmp() wants,
> but sizeof() is compile-time.

I thought gcc optimised strlen("string literal") into a compile time
constant too. It does in a little userspace test I just wrote, but I
didn't look at its behaviour with the kernel's strlen.

Ian.