linux-kernel - BUG? Duplicate key code 0xe045 in dell-wmi.c

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Date:	Sat, 4 Jul 2015 18:34:03 +0200
From:	Pali Rohár <pali.rohar@...il.com>
To:	Mario Limonciello <mario_limonciello@...l.com>,
	Matthew Garrett <mjg@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Len Brown <len.brown@...el.com>,
	platform-driver-x86@...r.kernel.org, linux-kernel@...r.kernel.org
Cc:	Gabriele Mazzotta <gabriele.mzt@...il.com>,
	Michał Kępień <kernel@...pniu.pl>
Subject: BUG? Duplicate key code 0xe045 in dell-wmi.c

Hello,

I'm looking at dell-wmi.c driver and its history in git and I found 
problem with handling WMI key code 0xe045. In current dell-wmi.c code is

{KE_KEY, 0xe045, KEY_PROG1},
{KE_IGNORE, 0xe045, KEY_NUMLOCK},

I bet this is some copy-paste error as one code can be translated only 
to one input key event.

In git history I found that above change was added by commit:

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=5cab0098171712a9fd51399b06181c8dfdebe9c9

===============================================
commit 5cab0098171712a9fd51399b06181c8dfdebe9c9
Author: Mario Limonciello <mario_limonciello@...l.com>
Date:   Wed Jun 10 19:40:47 2009 +0000

    dell-wmi: add additional keyboard events
    
    Upcoming Dell hardware will send more keyboard events via WMI.  Add
    support for them.
    
    Signed-off-by: Mario Limonciello <mario_limonciello@...l.com>
    Signed-off-by: Matthew Garrett <mjg@...hat.com>
    Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
    Signed-off-by: Len Brown <len.brown@...el.com>
===============================================

Sending email to all signers of this commit. Problematic code is still 
in upstream kernel, so it needs to be fixed.

Mario Limonciello: Do you know if code 0xe045 is some PROG1 or NUMLOCK?

-- 
Pali Rohár
pali.rohar@...il.com

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