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ARM: Fix "Make low-level printk work" to use a separate config option

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Signed-off-by: Arve Hjønnevåg <arve@android.com>

Git-commit: 47e0f4d1dcbf4d84c8f7982e5f5ebaa5ba67ecc5
Git-Repo: https://android.googlesource.com/kernel/common.git
Signed-off-by: Ian Maund <imaund@codeaurora.org>
This commit is contained in:
Arve Hjønnevåg 2013-06-14 19:54:40 -07:00 committed by Ian Maund
parent 6194f9c4b3
commit 7e9bbd95fb
2 changed files with 16 additions and 0 deletions
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8
arch/arm/Kconfig.debug
View file

@ -667,6 +667,14 @@ config EARLY_PRINTK
kernel low-level debugging functions. Add earlyprintk to your
kernel parameters to enable this console.
config EARLY_PRINTK_DIRECT
bool "Early printk direct"
depends on DEBUG_LL
help
Say Y here if you want to have an early console using the
kernel low-level debugging functions and EARLY_PRINTK is
not early enough.
config OC_ETM
bool "On-chip ETM and ETB"
depends on ARM_AMBA

8
kernel/printk.c
View file

@ -51,6 +51,10 @@
#define CREATE_TRACE_POINTS
#include <trace/events/printk.h>
#ifdef CONFIG_EARLY_PRINTK_DIRECT
extern void printascii(char *);
#endif
/* printk's without a loglevel use this.. */
#define DEFAULT_MESSAGE_LOGLEVEL CONFIG_DEFAULT_MESSAGE_LOGLEVEL
@ -1848,6 +1852,10 @@ asmlinkage int vprintk_emit(int facility, int level,
}
}
#ifdef CONFIG_EARLY_PRINTK_DIRECT
printascii(text);
#endif
if (level == -1)
level = default_message_loglevel;