linux-kernel - Re: [PATCHv2] usb: gadget: serial: replace hardcoded ttyGS with PREFIX

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Date:	Mon, 30 Jun 2014 10:56:09 +0200
From:	Richard Leitner <richard.leitner@...data.com>
To:	David Laight <David.Laight@...LAB.COM>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Felipe Balbi <balbi@...com>,
	"linux-usb@...r.kernel.org" <linux-usb@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCHv2] usb: gadget: serial: replace hardcoded ttyGS with
 PREFIX

Hi,

On Mon, 30 Jun 2014 08:41:18 +0000
David Laight <David.Laight@...LAB.COM> wrote:

> From: Of Richard Leitner
> > Replaces all hardcoded ttyGS strings with the PREFIX macro.
> > Due to the fact the strings are spread over different source files the
> > PREFIX definition is moved to u_serial.h
> 
> Lots of changes like:
> > -		DBG(cdev, "acm ttyGS%d completion, err %d\n",
> > -				acm->port_num, req->status);
> > +		DBG(cdev, "acm %s%d completion, err %d\n",
> > +				PREFIX, acm->port_num, req->status);
> 
> I'm not sure this improves the code.

Maybe you're right, the readability of the code wouldn't be better afterwards,
but as I already mentioned IMHO if there is such a macro it should be used everywhere or nowhere...

> Do you see a need to ever change PREFIX?

To be honest: I don't know who would ever need this (me probably not).

So the other idea is to carve it out completely?

> 
> Even if it is a reasonable change, the name PREFIX is hopeless.
> It would have to be something like ACM_TTYNAME_PREFIX.

good point.

> 
> 	David

regards,
richard
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