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early_printk: consolidate random copies of identical code

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The early console implementations are the same all over the place.  Move
the print function to kernel/printk and get rid of the copies.

[akpm@linux-foundation.org: arch/mips/kernel/early_printk.c needs kernel.h for va_list]
[paul.gortmaker@windriver.com: sh4: make the bios early console support depend on EARLY_PRINTK]
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Russell King <linux@arm.linux.org.uk>
Acked-by: Mike Frysinger <vapier@gentoo.org>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Richard Weinberger <richard@nod.at>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Thomas Gleixner
2013-04-29 16:17:18 -07:00
committed by Linus Torvalds
parent 07c65f4d1a
commit d0380e6c3c
13 changed files with 63 additions and 109 deletions
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12
arch/mips/kernel/early_printk.c
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@@ -7,7 +7,9 @@
* Copyright (C) 2007 MIPS Technologies, Inc.
* written by Ralf Baechle (ralf@linux-mips.org)
*/
#include <linux/kernel.h>
#include <linux/console.h>
#include <linux/printk.h>
#include <linux/init.h>
#include <asm/setup.h>
@@ -24,20 +26,18 @@ static void early_console_write(struct console *con, const char *s, unsigned n)
}
}
static struct console early_console = {
static struct console early_console_prom = {
.name = "early",
.write = early_console_write,
.flags = CON_PRINTBUFFER | CON_BOOT,
.index = -1
};
static int early_console_initialized __initdata;
void __init setup_early_printk(void)
{
if (early_console_initialized)
if (early_console)
return;
early_console_initialized = 1;
early_console = &early_console_prom;
register_console(&early_console);
register_console(&early_console_prom);
}