linux-kernel - Re: [PATCH] checkpatch: Attempt to find missing switch/case break;

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Message-ID: <alpine.LNX.2.00.1312132200040.12702@pobox.suse.cz>
Date:	Fri, 13 Dec 2013 22:00:52 +0100 (CET)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Joe Perches <joe@...ches.com>
cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Andy Whitcroft <apw@...dowen.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Benjamin Tissoires <benjamin.tissoires@...hat.com>,
	Dave Jones <davej@...hat.com>
Subject: Re: [PATCH] checkpatch: Attempt to find missing switch/case break;

On Fri, 13 Dec 2013, Joe Perches wrote:

> Also tested on all files in drivers/hid/
> 
> There is a hit for drivers/hid/hid-microsoft.c
> 
> I've no idea what's right here but adding a break or return
> or a "fall-through" comment would be nicer.
> 
> static int ms_ergonomy_kb_quirk(struct hid_input *hi, struct hid_usage *usage,
> 		unsigned long **bit, int *max)
> {
> 	struct input_dev *input = hi->input;
> 
> 	switch (usage->hid & HID_USAGE) {
> 	case 0xfd06: ms_map_key_clear(KEY_CHAT);	break;
> 	case 0xfd07: ms_map_key_clear(KEY_PHONE);	break;
> 	case 0xff05:
> 		set_bit(EV_REP, input->evbit);
> 		ms_map_key_clear(KEY_F13);
> 		set_bit(KEY_F14, input->keybit);
> 		set_bit(KEY_F15, input->keybit);
> 		set_bit(KEY_F16, input->keybit);
> 		set_bit(KEY_F17, input->keybit);
> 		set_bit(KEY_F18, input->keybit);
> 	default:
> 		return 0;
> 	}
> 	return 1;
> }

This is indeed a bug. I'll fix it with your Reported-by:, thanks.

-- 
Jiri Kosina
SUSE Labs
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