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

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Message-ID: <157465.85166.qm@web94911.mail.in2.yahoo.com>
Date:	Wed, 31 Mar 2010 23:32:39 +0530 (IST)
From:	Pavan Savoy <pavan_savoy@...com>
To:	Greg KH <gregkh@...e.de>
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, 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 ?

> thanks,
> 
> greg k-h
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