This patch changes the default for CONFIG_EARLY_PRINTK to n. Prior to
this change, the presence of SYS_HAS_EARLY_PRINTK would always set
EARLY_PRINTK to y if either EMBEDDED or DEBUG_KERNEL were not set. As
this is a debugging option, it should default to n.
Signed-off-by: David Pelton <david.r.pelton@xxxxxxxxx>
---
Hi,
while fiddling with kernel configuration options for the Broadcom eval
board I am working with, I noticed that turning off DEBUG_KERNEL would
make many bad things happen. I did not get to the root cause, but I
think that some of the early printk drivers have some dependency on
functionality enabled by DEBUG_KERNEL. The 2.6.25.6 kernel has a
default value of "y" for EARLY_PRINTK, and this default will be applied
anytime the platform claims to support early printk. In particular, if
DEBUG_KERNEL is not selected, there is no way to disable EARLY_PRINTK.
This patch changes the default to "n" to avoid these problems.
- David Pelton
arch/mips/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -Nraup linux-2.6.25.6-clean/arch/mips/Kconfig linux-2.6.25.6/arch/mips/Kconfig
--- linux-2.6.25.6-clean/arch/mips/Kconfig 2008-06-09 14:27:19.000000000 -0400
+++ linux-2.6.25.6/arch/mips/Kconfig 2008-06-16 14:34:33.229160000 -0400
@@ -807,7 +807,7 @@ config DMA_NEED_PCI_MAP_STATE
config EARLY_PRINTK
bool "Early printk" if EMBEDDED && DEBUG_KERNEL
depends on SYS_HAS_EARLY_PRINTK
- default y
+ default n
help
This option enables special console drivers which allow the kernel
to print messages very early in the bootup process.
