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From: Joe Perches <joe@perches.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arch <linux-arch@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	linux-m68k <linux-m68k@lists.linux-m68k.org>,
	Steven Miao <realmz6@gmail.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	linux-mips <linux-mips@linux-mips.org>
Subject: Re: rfc: remove early_printk from a few arches? (blackfin, m68k, mips)
Date: Thu, 18 Dec 2014 17:14:18 -0800	[thread overview]
Message-ID: <1418951658.28384.20.camel@perches.com> (raw)
In-Reply-To: <alpine.DEB.2.11.1412190031530.17382@nanos>

On Fri, 2014-12-19 at 00:33 +0100, Thomas Gleixner wrote:
> On Wed, 17 Dec 2014, Joe Perches wrote:
> > It seems like early_printk can be configured into
> > a few architectures but also appear not to be used.
> > 
> > $ git grep -w "early_printk"
> ...
> > These seem to the only uses:
> ... 
> > So blackfin, m68k, and mips seems to have it possible to enable,
> > but also don't appear at first glance to use it,
> 
> Hint: CONFIG_EARLY_PRINTK covers far more than early_printk()

I know this.

Note also I didn't specify CONFIG_EARLY_PRINTK,
just early_printk.
 
> > Is early_printk really used by these architectures?
> > Should it be removed?
> 
> Sure, if you have a good reason to remove working functionality.

Unused.

Ideally, all direct early_printk() uses would go away.
This would just be a starting point to minimize code.

WARNING: multiple messages have this Message-ID (diff)
From: Joe Perches <joe@perches.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-arch <linux-arch@vger.kernel.org>,
	LKML <linux-kernel@vger.kernel.org>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	linux-m68k <linux-m68k@vger.kernel.org>,
	Steven Miao <realmz6@gmail.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	linux-mips <linux-mips@linux-mips.org>
Subject: Re: rfc: remove early_printk from a few arches? (blackfin, m68k, mips)
Date: Thu, 18 Dec 2014 17:14:18 -0800	[thread overview]
Message-ID: <1418951658.28384.20.camel@perches.com> (raw)
In-Reply-To: <alpine.DEB.2.11.1412190031530.17382@nanos>

On Fri, 2014-12-19 at 00:33 +0100, Thomas Gleixner wrote:
> On Wed, 17 Dec 2014, Joe Perches wrote:
> > It seems like early_printk can be configured into
> > a few architectures but also appear not to be used.
> > 
> > $ git grep -w "early_printk"
> ...
> > These seem to the only uses:
> ... 
> > So blackfin, m68k, and mips seems to have it possible to enable,
> > but also don't appear at first glance to use it,
> 
> Hint: CONFIG_EARLY_PRINTK covers far more than early_printk()

I know this.

Note also I didn't specify CONFIG_EARLY_PRINTK,
just early_printk.
 
> > Is early_printk really used by these architectures?
> > Should it be removed?
> 
> Sure, if you have a good reason to remove working functionality.

Unused.

Ideally, all direct early_printk() uses would go away.
This would just be a starting point to minimize code.



  parent reply	other threads:[~2014-12-19  1:14 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-12-17 20:58 rfc: remove early_printk from a few arches? (blackfin, m68k, mips) Joe Perches
2014-12-17 20:58 ` Joe Perches
2014-12-17 21:30 ` Kevin Cernekee
2014-12-17 21:30 ` Kevin Cernekee
2014-12-17 21:30   ` Kevin Cernekee
2014-12-17 22:30   ` Måns Rullgård
2014-12-17 22:30   ` Måns Rullgård
2014-12-17 22:30     ` Måns Rullgård
2014-12-18 23:33 ` Thomas Gleixner
2014-12-18 23:33 ` Thomas Gleixner
2014-12-18 23:33   ` Thomas Gleixner
2014-12-19  1:14   ` Joe Perches
2014-12-19  1:14   ` Joe Perches [this message]
2014-12-19  1:14     ` Joe Perches
2014-12-19  1:43     ` Måns Rullgård
2014-12-19  1:43       ` Måns Rullgård
2014-12-19  2:08       ` Joe Perches
2014-12-19  2:08         ` Joe Perches
2014-12-19 10:33         ` Måns Rullgård
2014-12-19 10:33           ` Måns Rullgård
2014-12-19 22:49           ` Joe Perches
2014-12-19 22:49             ` Joe Perches
2014-12-28 18:36           ` Pavel Machek
2014-12-28 18:36             ` Pavel Machek
2014-12-19  1:43     ` Måns Rullgård
2014-12-19  8:03 ` Geert Uytterhoeven
2014-12-19  8:03 ` Geert Uytterhoeven
2014-12-19  8:03   ` Geert Uytterhoeven
2014-12-28 18:33 ` Pavel Machek
2014-12-28 18:33   ` Pavel Machek
  -- strict thread matches above, loose matches on Subject: below --
2014-12-17 20:58 Joe Perches

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