From: Josh Triplett <josh@xxxxxxxxxxxxxxxx> The buffers sized by CONFIG_LOG_BUF_SHIFT and CONFIG_LOG_CPU_MAX_BUF_SHIFT do not exist if CONFIG_PRINTK=n, so don't ask about their size at all. Signed-off-by: Josh Triplett <josh@xxxxxxxxxxxxxxxx> Acked-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Cc: stable <stable@xxxxxxxxxxxxxxx> --- init/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/init/Kconfig b/init/Kconfig index e84c642..31505a5 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -811,6 +811,7 @@ config LOG_BUF_SHIFT int "Kernel log buffer size (16 => 64KB, 17 => 128KB)" range 12 21 default 17 + depends on PRINTK help Select the minimal kernel log buffer size as a power of 2. The final size is affected by LOG_CPU_MAX_BUF_SHIFT config @@ -830,6 +831,7 @@ config LOG_CPU_MAX_BUF_SHIFT range 0 21 default 12 if !BASE_SMALL default 0 if BASE_SMALL + depends on PRINTK help This option allows to increase the default ring buffer size according to the number of CPUs. The value defines the contribution -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe stable" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html