Subject: Re: [PATCH][WAS:bcmai,axi] bcma: add Broadcom specific AMBA bus
	driver
From: George Kashperko <george@znau.edu.ua>
To: =?UTF-8?Q?Rafa=C5=82_Mi=C5=82ecki?= <zajec5@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>, linux-wireless@vger.kernel.org,
	"John W. Linville" <linville@tuxdriver.com>,
	b43-dev@lists.infradead.org, Greg KH <greg@kroah.com>,
	Michael =?ISO-8859-1?Q?B=FCsch?= <mb@bu3sch.de>,
	Larry Finger <Larry.Finger@lwfinger.net>,
	Arend van Spriel <arend@broadcom.com>,
	linux-arm-kernel@lists.infradead.org,
	Russell King <rmk@arm.linux.org.uk>,
	Andy Botting <andy@andybotting.com>,
	linuxdriverproject <devel@linuxdriverproject.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
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Date: Sat, 07 May 2011 22:35:56 +0300
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> I'll ask linux-wireless instead of linux-usb or linux-arm.
If you know you haven't got wireless working by some reason you will ask
at linux-wireless anyway. And people there will ask you for id/ven/rev
rather than core name reported by bus driver.

> I didn't expect longer discussion so I got this trivial example of
> pr_err. But it appears to be good example/question.
> 
> How do you see relation between bcma_device_name and:
> int zd_ioread32v_locked(...) {
> 	if (r) {
> 		dev_dbg_f(zd_chip_dev(chip),
> 			  "error: zd_ioread16v_locked. Error number %d\n", r);
> 		return r;
> 	}
> }
No relation at all. It like comparing warm and soft. It will be if you
do something like

dbg_bcma_device_name
{
#ifdef DEBUG
		case/switch/if/else stuff
#endif
		return NULL;
}
But I don't see here much sense to hardcode names other than those of
buscommons/buscores for debugging purposes.

> 
> I believe according to your theory we should drop thi error message,
> right? It eats memory to keep this string while error code can always
> be checked in source.
> 
My theory ? o.O

Have nice day,
George