diff options
| -rw-r--r-- | arch/arm/Kconfig.debug | 8 | ||||
| -rw-r--r-- | kernel/printk.c | 10 |
2 files changed, 13 insertions, 5 deletions
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug index 21cc8a76598..a640f09ec84 100644 --- a/arch/arm/Kconfig.debug +++ b/arch/arm/Kconfig.debug @@ -690,6 +690,14 @@ 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 diff --git a/kernel/printk.c b/kernel/printk.c index 9cb84eb1a9d..c2f720eb428 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -51,7 +51,7 @@ #define CREATE_TRACE_POINTS #include <trace/events/printk.h> -#ifdef CONFIG_DEBUG_LL +#ifdef CONFIG_EARLY_PRINTK_DIRECT extern void printascii(char *); #endif @@ -1556,10 +1556,6 @@ asmlinkage int vprintk_emit(int facility, int level, */ text_len = vscnprintf(text, sizeof(textbuf), fmt, args); -#ifdef CONFIG_DEBUG_LL - printascii(text); -#endif - /* mark and strip a trailing newline */ if (text_len && text[text_len-1] == '\n') { text_len--; @@ -1586,6 +1582,10 @@ asmlinkage int vprintk_emit(int facility, int level, } } +#ifdef CONFIG_EARLY_PRINTK_DIRECT + printascii(text); +#endif + if (level == -1) level = default_message_loglevel; |