linux-kernel - Re: [PATCH] usb: phy: Quiet unable to find transceiver message

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Message-ID: <Pine.LNX.4.44L0.1402031102440.1410-100000@iolanthe.rowland.org>
Date:	Mon, 3 Feb 2014 11:04:52 -0500 (EST)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Paul Bolle <pebolle@...cali.nl>
cc:	balbi@...com, Josh Boyer <jwboyer@...oraproject.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	<linux-usb@...r.kernel.org>,
	"Linux-Kernel@...r. Kernel. Org" <linux-kernel@...r.kernel.org>,
	<valentine.barshak@...entembedded.com>
Subject: Re: [PATCH] usb: phy: Quiet unable to find transceiver message

On Mon, 3 Feb 2014, Paul Bolle wrote:

> > > >> --- a/drivers/usb/phy/phy.c
> > > >> +++ b/drivers/usb/phy/phy.c
> > > >> @@ -228,7 +228,7 @@ struct usb_phy *usb_get_phy_dev(struct device *dev, u8 index)
> > > >>
> > > >>       phy = __usb_find_phy_dev(dev, &phy_bind_list, index);
> > > >>       if (IS_ERR(phy) || !try_module_get(phy->dev->driver->owner)) {
> > > >> -             pr_err("unable to find transceiver\n");
> > > >> +             pr_debug("unable to find transceiver\n");
> > > >>               goto err0;
> > > >>       }
> > > >
> > > > Wouldn't it make more sense to change this to dev_debug?  As it stands,
> > > > the user has no idea which device is lacking a transceiver.
> > > 
> > > Quite possibly, yes.  I'm not overly familiar with the subsystem and
> > > was just writing up what Felipe suggested.
> > > 
> > > > (The same is probably true for other log messages in this source file.)
> > > 
> > > I don't disagree, but I'd rather someone with more experience in the
> > > USB subsystem do that kind of broader audit/change.  I'd be happy to
> > > test.
> > 
> > yeah, I just sent a patch where I forgot to switch over to dev_dbg(), if
> > you can do that for both messages and remove the out of memory message,
> > I'd be glad to take your patch instead of mine.
> 
> This message cab still be seen when booting v3.14-rc1. Is a patch to
> downgrade this message to dev_dbg() - from Josh, Felipe or someone else
> - queued somewhere?

	http://marc.info/?l=linux-usb&m=139092084714232&w=2

As far as I know, this hasn't been merged into anybody's tree yet.  And 
Felipe is on vacation for a few weeks.  Still, it should get in before 
3.14 is released.

Alan Stern

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