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From: Linus Torvalds <torvalds@linux-foundation.org>
To: Jason Wessel <jason.wessel@windriver.com>
Cc: Ingo Molnar <mingo@elte.hu>, Len Brown <lenb@kernel.org>,
	Greg KH <gregkh@suse.de>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org
Subject: Re: [origin tree boot hang] [PATCH] Revert "early_printk:Allowmorethan one early console"
Date: Wed, 23 Sep 2009 15:56:34 -0700 (PDT)	[thread overview]
Message-ID: <alpine.LFD.2.01.0909231553480.3303@localhost.localdomain> (raw)
In-Reply-To: <4ABAA398.7080903@windriver.com>



On Wed, 23 Sep 2009, Jason Wessel wrote:
> 
> Perhaps you will consider adding this patch to your tree?   It fixes the
> specific case you mentioned.  It will still allow the board to boot and
> instead of crashing, print a warning on the second instance.

Ugh. This looks totally bogus.

Why don't you just add CON_REGISTERED to the console flags, and do

	/* Already registered? */
	if (early_console->flags & CON_REGISTERED)
		return;
	early_console->flags |= CON_REGISTERED;

there instead? That whole "loop over existing consoles to check their 
names" looks silly and broken, and you're already playing with the flags 
in there (CON_BOOT).

		Linus

  reply	other threads:[~2009-09-23 22:57 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-09-23 13:55 [GIT PATCH] USB patches for 2.6.31-git Greg KH
2009-09-23 17:24 ` [origin tree build failure] [PATCH] USB sierra: Fix build if !CONFIG_PM Ingo Molnar
2009-09-23 17:32   ` Randy Dunlap
2009-09-23 17:39     ` Ingo Molnar
2009-09-23 17:34   ` Greg KH
2009-09-23 17:37 ` [origin tree boot hang] [PATCH] Revert "early_printk: Allow more than one early console" Ingo Molnar
2009-09-23 17:57   ` [origin tree boot hang] [PATCH] Revert "early_printk: Allow morethan " Jason Wessel
2009-09-23 19:02     ` Ingo Molnar
2009-09-23 19:17       ` Ingo Molnar
2009-09-23 21:05         ` Ingo Molnar
2009-09-23 21:19           ` [origin tree boot hang] [PATCH] Revert "early_printk: Allowmorethan " Jason Wessel
2009-09-23 21:39             ` Ingo Molnar
2009-09-23 22:39               ` [origin tree boot hang] [PATCH] Revert "early_printk:Allowmorethan " Jason Wessel
2009-09-23 22:56                 ` Linus Torvalds [this message]
2009-09-23 23:13                   ` Jason Wessel
2009-09-24 11:48                     ` [tip:x86/urgent] x86: early_printk: Protect against using the same device twice tip-bot for Jason Wessel
2009-09-24 12:22             ` [origin tree boot hang] [PATCH] Revert "early_printk: Allowmorethan one early console" Johannes Weiner
2009-09-24 14:08               ` Jason Wessel
2009-10-01  8:34                 ` Ingo Molnar
2009-10-01  9:58                 ` [tip:x86/urgent] x86: earlyprintk: Fix regression to handle serial,ttySn as 1 arg tip-bot for Jason Wessel

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