DEBUG_INFO build and compile times are reduced too.
Only works with newer gcc versions.
+# KERNEL_DEBUG_LL symbols must have the default value set as otherwise
+# KConfig wont evaluate them unless KERNEL_EARLY_PRINTK is selected
+# which means that buildroot wont override the DEBUG_LL symbols in target
+# kernel configurations and lead to devices that dont have working console
config KERNEL_DEBUG_LL_UART_NONE
bool
+ default n
depends on arm
config KERNEL_DEBUG_LL
bool
+ default n
depends on arm
select KERNEL_DEBUG_LL_UART_NONE
help