linux-kernel - Re: [PATCH] usb: storage: Add usb_stor

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Date:	Wed, 17 Apr 2013 11:06:28 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Joe Perches <joe@...ches.com>
cc:	Matthew Dharm <mdharm-usb@...-eyed-alien.net>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	linux-usb <linux-usb@...r.kernel.org>,
	usb-storage <usb-storage@...ts.one-eyed-alien.net>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] usb: storage: Add usb_stor_dbg, reduce object size

On Wed, 17 Apr 2013, Joe Perches wrote:

> On Wed, 2013-04-17 at 10:14 -0400, Alan Stern wrote:
> > On Tue, 16 Apr 2013, Joe Perches wrote:
> > > Reduce the size of the objects by consolidating
> > > the duplicated USB_STORAGE into a single function.
> []
> > Is there any reasonable way to change this so that US_DEBUGP gets
> > converted to a dev_dbg call instead of a printk call?  Not including
> > the device identifier in the output can be a real problem if there are
> > multiple mass-storage devices in the system.
> 
> No.
> 
> There's no standardized name of a struct device *.
> struct us_data *us exists for most of them but not
> all.  Some have a struct isd_200 *info available,
> other don't have a struct device * at all.
> 
> Some or all US_DEBUGP calls would have to change
> form.
> 
> Perhaps a good patch would be to convert US_DEBUGP
> calls where a struct us_data * is available to
> to us_stor_dbg(struct us_data *, const char *fmt, ...)

That would be an excellent start.

Alan Stern

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