linux-kernel - Re: [PATCH] drivers:staging: sources for ST core

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Date:	Wed, 31 Mar 2010 11:19:53 -0700
From:	Greg KH <gregkh@...e.de>
To:	Pavan Savoy <pavan_savoy@...com>
Cc:	Marcel Holtmann <marcel@...tmann.org>, alan@...rguk.ukuu.org.uk,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drivers:staging: sources for ST core

On Wed, Mar 31, 2010 at 11:32:39PM +0530, Pavan Savoy wrote:
> --- On Wed, 31/3/10, Greg KH <gregkh@...e.de> wrote:
> 
> > From: Greg KH <gregkh@...e.de>
> > Subject: Re: [PATCH] drivers:staging: sources for ST core
> > To: "Pavan Savoy" <pavan_savoy@...com>
> > Cc: "Marcel Holtmann" <marcel@...tmann.org>, alan@...rguk.ukuu.org.uk, linux-kernel@...r.kernel.org
> > Date: Wednesday, 31 March, 2010, 11:00 PM
> > On Wed, Mar 31, 2010 at 04:20:22AM
> > +0530, Pavan Savoy wrote:
> > > 
> > > --- On Wed, 31/3/10, Pavan Savoy <pavan_savoy@...com>
> > wrote:
> > > 
> > > > From: Pavan Savoy <pavan_savoy@...com>
> > > > Subject: Re: [PATCH] drivers:staging: sources for
> > ST core
> > > > To: gregkh@...e.de
> > > > Cc: "Marcel Holtmann" <marcel@...tmann.org>,
> > alan@...rguk.ukuu.org.uk
> > > > Date: Wednesday, 31 March, 2010, 4:11 AM
> > > > --- On Wed, 31/3/10, Pavan Savoy
> > > > <pavan_savoy@...oo.co.in>
> > > > wrote:
> > > > 
> > > > > From: Pavan Savoy <pavan_savoy@...oo.co.in>
> > > > > Subject: Re: [PATCH] drivers:staging:
> > sources for ST
> > > > core
> > > > > To: "pavan_savoy@...oo.co.in"
> > > > <pavan_savoy@...oo.co.in>
> > > > > Date: Wednesday, 31 March, 2010, 4:06 AM
> > > > > > From: Greg KH [gregkh@...e.de]
> > > > > > Sent: Wednesday, March 31, 2010 3:17
> > AM
> > > > > > To: Savoy, Pavan
> > > > > > Cc: Alan Cox; marcel@...tmann.org;
> > > > > > linux-kernel@...r.kernel.org
> > > > > > Subject: Re: [PATCH] drivers:staging:
> > sources for
> > > > ST
> > > > > core
> > > > > > 
> > > > > > On Wed, Mar 31, 2010 at 02:35:55AM
> > +0530, Pavan
> > > > Savoy
> > > > > > wrote:
> > > > > > > So, something like the below is
> > ok, I have
> > > > > defined my
> > > > > > own pr_fmt,
> > > > > > > however default log level on my
> > board is 7,
> > > > and
> > > > > hence
> > > > > > pr_info is a bit
> > > > > > > more annoying than usual.
> > > > > > 
> > > > > > No, a driver should use dev_dbg() and
> > other
> > > > > dev_printk()
> > > > > > calls, not
> > > > > > pr_debug() or anything like that.
> > > > > > 
> > > > > > Please don't roll your own formats, use
> > the ones
> > > > that
> > > > > are
> > > > > > well defined
> > > > > > and uniquely describe your driver and
> > device in
> > > > a
> > > > > format
> > > > > > that the whole
> > > > > > kernel uses.
> > > > > 
> > > > 
> > > 
> > > forgot lkml the last time..
> > > 
> > > Nope, I couldn't find any instance of struct device at
> > all,
> > > I need that to use dev_dbg right ? - None of the
> > tty_*
> > > structure accessible by ldiscs seems to have a
> > reference to
> > > it.
> > > Also I happened to look at other line discipline
> > driver, if
> > > they have a smarter way of doing this, Nope - n_tty,
> > n_hdlc,
> > > n_slip all seem to use plain old printks.
> > >? 
> > > Any clues ??
> > 
> > Sorry, you are correct, we only have a struct kref right
> > now for tty
> > core objects, not a struct device.? So nevermind, this
> > should be fine.
> 
> Oh cool. Thanks, So that leaves me with 1 pending item from Alan which is to tie these 3 modules (KIM/Core/LL) up onto a TTY device specific context, and avoid all global ptrs.
> 
> So without that is it good to go in ?

Yes, care to do that and resubmit?

thanks,

greg k-h
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