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Subject[PATCH] printk: add Kconfig for default console loglevel
Date
Keep the historical default of 7, but allow distributions and users to
tune this value instead of requiring a kernel cmdline parameter.

Signed-off-by: Dave Reisner <dreisner@archlinux.org>
---
kernel/printk.c | 4 +++-
lib/Kconfig.debug | 10 ++++++++++
2 files changed, 13 insertions(+), 1 deletions(-)

diff --git a/kernel/printk.c b/kernel/printk.c
index 37dff34..fabc216 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -58,7 +58,9 @@ void asmlinkage __attribute__((weak)) early_printk(const char *fmt, ...)

/* We show everything that is MORE important than this.. */
#define MINIMUM_CONSOLE_LOGLEVEL 1 /* Minimum loglevel we let people use */
-#define DEFAULT_CONSOLE_LOGLEVEL 7 /* anything MORE serious than KERN_DEBUG */
+
+/* default to 7 -- anything MORE serious than KERN_DEBUG */
+#define DEFAULT_CONSOLE_LOGLEVEL CONFIG_DEFAULT_CONSOLE_LOGLEVEL

DECLARE_WAIT_QUEUE_HEAD(log_wait);

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index c0cb9c4..6caa66e 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -21,6 +21,16 @@ config DEFAULT_MESSAGE_LOGLEVEL
that are auditing their logs closely may want to set it to a lower
priority.

+config DEFAULT_CONSOLE_LOGLEVEL
+ int "Default console log level (1-7)"
+ range 1 7
+ default "7"
+ help
+ Default console log level setting for printk statements.
+
+ This was hard-coded to KERN_INFO (7) since at least 2.6.12. You may
+ wish to turn this down to 4 for a quieter console.
+
config ENABLE_WARN_DEPRECATED
bool "Enable __deprecated logic"
default y
--
1.7.6


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