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Date: Fri, 22 Dec 2017 17:43:50 +0100 (CET)
From: Thomas Gleixner <tglx@linutronix.de>
To: Juergen Gross <jgross@suse.com>
cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Borislav Petkov <bp@suse.de>
Subject: Re: Bug in patch "x86/pti: Add the pti= cmdline option and
 documentation"
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On Fri, 22 Dec 2017, Juergen Gross wrote:

> The patch in the tip tree with commit 506bcdf68b07a0335751e1fe8be37
> ("x86/pti: Add the pti= cmdline option and documentation") is completely
> wrong: cmdline_find_option() will return -1 in case the otion isn't
> found and the len of the argument in case it has been found.

AArgh .....