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Gerd Hoffmann 69331af79c Fixes and cleanups for earlyprintk aka boot console ... The console subsystem already has an idea of a boot console, using the CON_BOOT flag. The implementation has some flaws though. The major problem is that presence of a boot console makes register_console() ignore any other console devices (unless explicitly specified on the kernel command line). This patch fixes the console selection code to *not* consider a boot console a full-featured one, so the first non-boot console registering will become the default console instead. This way the unregister call for the boot console in the register_console() function actually triggers and the handover from the boot console to the real console device works smoothly. Added a printk for the handover, so you know which console device the output goes to when the boot console stops printing messages. The disable_early_printk() call is obsolete with that patch, explicitly disabling the early console isn't needed any more as it works automagically with that patch. I've walked through the tree, dropped all disable_early_printk() instances found below arch/ and tagged the consoles with CON_BOOT if needed. The code is tested on x86, sh (thanks to Paul) and mips (thanks to Ralf). Changes to last version: Rediffed against -rc3, adapted to mips cleanups by Ralf, fixed "udbg-immortal" cmd line arg on powerpc. Signed-off-by: Gerd Hoffmann <kraxel@exsuse.de> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Ralf Baechle <ralf@linux-mips.org> Cc: Andi Kleen <ak@suse.de> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Richard Henderson <rth@twiddle.net> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		18 years ago
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boot	[POWERPC] Add dt_xlate_addr() to bootwrapper	18 years ago
configs	[POWERPC] Rename MPIC_BROKEN_U3 to MPIC_U3_HT_IRQS	18 years ago
kernel	Fixes and cleanups for earlyprintk aka boot console	18 years ago
lib	Merge branch 'linux-2.6' into for-2.6.22	18 years ago
math-emu	…
mm	use SLAB_PANIC flag cleanup	18 years ago
oprofile	[POWERPC] Spinlock initializer cleanup	18 years ago
platforms	slab allocators: Remove SLAB_DEBUG_INITIAL flag	18 years ago
sysdev	Merge branch 'for-2.6.22' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc	18 years ago
xmon	[POWERPC] Fix WARN_ON when entering xmon	18 years ago
.gitignore	…
Kconfig	PowerPC: Disable SLUB for configurations in which slab page structs are modified	18 years ago
Kconfig.debug	[POWERPC] DEBUG_PAGEALLOC for 64-bit	18 years ago
Makefile	[POWERPC] Enable make install	18 years ago