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From: Rob Landley <rob@landley.net>
To: Arnd Bergmann <arnd@arndb.de>
Cc: linux-tiny@selenic.com, Tim Bird <tim.bird@am.sony.com>,
	linux kernel <linux-kernel@vger.kernel.org>,
	CE Linux Developers List <celinux-dev@tree.celinuxforum.org>,
	Michael Opdenacker <michael@free-electrons.com>
Subject: Re: [Announce] Linux-tiny project revival
Date: Thu, 27 Sep 2007 19:06:48 -0500	[thread overview]
Message-ID: <200709271906.48601.rob@landley.net> (raw)
In-Reply-To: <200709270900.36602.arnd@arndb.de>

On Thursday 27 September 2007 2:00:36 am Arnd Bergmann wrote:
> #define KERN_NOTICE "<5>",
>
> #define PRINTK_CONTINUED "",
>
>  #define printk(level, str, ...) \
>    do { \
>      if (sizeof(level) == 1) /* continued printk */\
> 	actual_printk(str, __VA_ARGS__); \
>      else if ((level[1] - '0') < CONFIG_PRINTK_DOICARE) \
>        actual_printk(level str, __VA_ARGS__); \
>    } while(0);
>
> Then you don't have to change every single printk in the kernel, but
> only those that don't currently come with a log level. More importantly,
> you can do the conversion without a flag day, by spreading (an empty)
> PRINTK_CONTINUED in places that do need a printk without a log level.

The "change every printk in the kernel" suggestion came from me trying to 
figure out how to get the printk() calls below a certain log level to 
optimize out and not take up space in the binary.

The above doesn't address the original cause of the thread, as far as I can 
tell.

> 	Arnd <><

Rob
-- 
"One of my most productive days was throwing away 1000 lines of code."
  - Ken Thompson.

  parent reply	other threads:[~2007-09-27 23:07 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-19 18:03 [Announce] Linux-tiny project revival Tim Bird
2007-09-19 18:47 ` Luis R. Rodriguez
2007-09-19 19:31   ` Tim Bird
2007-09-19 19:01 ` Christian MICHON
2007-09-19 19:28 ` Andi Kleen
2007-09-19 19:41   ` Tim Bird
2007-09-19 20:45     ` Valdis.Kletnieks
2007-09-19 21:29       ` Tim Bird
2007-09-19 22:29         ` Michael Opdenacker
2007-09-19 21:28 ` [Celinux-dev] " Andrew Morton
2007-09-19 21:41   ` Tim Bird
2007-09-19 22:38     ` Michael Opdenacker
2007-09-20  9:10       ` Andy Whitcroft
2007-09-20 17:10         ` Monster switch for small size (was Linux-tiny revival) Tim Bird
2007-09-20 21:41           ` Rob Landley
2007-09-20 20:50             ` Randy Dunlap
2007-09-21  6:35             ` Christian MICHON
2007-09-20 23:02   ` [Celinux-dev] [Announce] Linux-tiny project revival Rob Landley
2007-09-20 20:38 ` Rob Landley
2007-09-20 19:58   ` Alexey Dobriyan
2007-09-20 20:22     ` printk proposal - (was Linux-tiny project revival) Tim Bird
2007-09-21 19:07       ` Alexey Dobriyan
2007-09-21 20:53         ` Rob Landley
2007-09-20 22:02     ` [Announce] Linux-tiny project revival Rob Landley
2007-09-20 21:22       ` Jared Hulbert
2007-09-20 22:53         ` Rob Landley
2007-09-20 22:15       ` [Celinux-dev] " Gross, Mark
2007-09-21  0:57         ` Message codes (Re: [Announce] Linux-tiny project revival) Oleg Verych
2007-09-21 14:18           ` Gross, Mark
2007-09-21 21:15             ` Rob Landley
2007-09-21 22:12               ` Gross, Mark
2007-09-21 22:33                 ` Joe Perches
2007-09-21 22:39                   ` Gross, Mark
2007-09-22  1:55               ` Oleg Verych
2007-09-21 13:29       ` [Announce] Linux-tiny project revival Dick Streefland
2007-09-20 20:16   ` Joe Perches
2007-09-25 11:43     ` [Celinux-dev] " Geert Uytterhoeven
2007-09-20 21:26   ` Indan Zupancic
2007-09-20 23:18     ` Rob Landley
2007-09-20 23:06       ` Indan Zupancic
2007-09-21  6:29         ` Sam Ravnborg
2007-09-24 18:13           ` Adrian Bunk
2007-09-26  6:24             ` Rob Landley
2007-09-21 17:16       ` Valdis.Kletnieks
2007-09-21 17:45         ` Joe Perches
2007-09-21 23:05           ` Rob Landley
2007-09-21 23:08             ` Joe Perches
2007-09-21 21:34       ` Kyle Moffett
2007-09-21 22:05         ` Joe Perches
2007-09-21 22:57           ` Kyle Moffett
2007-09-20 21:58   ` Tim Bird
2007-09-20 22:14     ` Joe Perches
2007-09-21  0:28       ` Rob Landley
2007-09-21  0:03         ` Joe Perches
2007-09-20 23:11     ` Rob Landley
2007-09-21 12:27   ` Bill Davidsen
2007-09-27  7:00   ` Arnd Bergmann
2007-09-27 16:35     ` Indan Zupancic
2007-09-27 22:21       ` Arnd Bergmann
2007-09-28  8:39         ` Bernd Petrovitsch
2007-09-30 20:37           ` Jörn Engel
2007-09-28  0:06     ` Rob Landley [this message]
2007-09-28 14:36       ` Dick Streefland

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