linux-kernel - RE: [PATCH 4/5] fusb300_udc: Add missing breaks in switch/case

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Date:	Mon, 18 Jul 2011 20:54:32 +0800
From:	Wendy Yuan-Hsin Chen(陳元馨) 
	<yhchen@...aday-tech.com>
To:	<balbi@...com>
Cc:	"Sebastian Andrzej Siewior" <bigeasy@...utronix.de>,
	"Greg Kroah-Hartman" <gregkh@...e.de>, <linux-usb@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, "Joe Perches" <joe@...ches.com>
Subject: RE: [PATCH 4/5] fusb300_udc: Add missing breaks in switch/case

Hi,

> >>>diff --git a/drivers/usb/gadget/fusb300_udc.c
> >>>b/drivers/usb/gadget/fusb300_udc.c
> >>>index 06353e7..453bc0f 100644
> >>>--- a/drivers/usb/gadget/fusb300_udc.c
> >>>+++ b/drivers/usb/gadget/fusb300_udc.c
> >>>@@ -688,10 +688,13 @@ static void fusb300_cmp_dbg_fifo(struct fusb300_ep *ep,
> >>> 	switch (length % 4) {
> >>> 	case 1:
> >>> 		golden_value = *tmp;
> >>>+		break;
> >>> 	case 2:
> >>> 		golden_value = *tmp | *(tmp + 1) << 8;
> >>>+		break;
> >>> 	case 3:
> >>> 		golden_value = *tmp | *(tmp + 1) << 8 | *(tmp + 2) << 16;
> >>>+		break;
> >>> 	default:
> >>> 		break;
> >>> 
> >
> >>That is in an #if 0 block. Maybe we should remove the #if 0? Yuan-Hsin?
> >
> >It's ok to remove the #if 0. But the warning will occur while compling.
> 
> By removing the #if 0 block I meant to remove the unused functions
> fusb300_cmp_dbg_fifo() and fusb300_dbg_fifo(). There should be no warning then.
> Are you okey with this? Are those function required?
> 
> These funtions are used for debugging. I think it's ok to remove them. Thanks.

maybe make a debugfs interface instead ?

These functions were used to debug unstable hw fifo while developing fusb300.  It's much more stable now.
So these functions can be removed. Thanks for your advice.

Yuan-Hsin

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