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    Subject[PATCH 3.4 73/91] init/Kconfig: Hide printk log config if CONFIG_PRINTK=n
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    From: Josh Triplett <josh@joshtriplett.org>

    3.4.105-rc1 review patch. If anyone has any objections, please let me know.

    ------------------


    commit 361e9dfbaae84b0b246ed18d1ab7c82a1a41b53e upstream.

    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@joshtriplett.org>
    Acked-by: Randy Dunlap <rdunlap@infradead.org>
    [lizf: Backported to 3.4:
    - drop the change to CONFIG_LOG_CPU_MAX_BUF_SHIFT as it doesn't exist in 3.4]
    Signed-off-by: Zefan Li <lizefan@huawei.com>
    ---
    init/Kconfig | 1 +
    1 file changed, 1 insertion(+)

    diff --git a/init/Kconfig b/init/Kconfig
    index 6cfd71d..f1b0e78 100644
    --- a/init/Kconfig
    +++ b/init/Kconfig
    @@ -560,6 +560,7 @@ config LOG_BUF_SHIFT
    int "Kernel log buffer size (16 => 64KB, 17 => 128KB)"
    range 12 21
    default 17
    + depends on PRINTK
    help
    Select kernel log buffer size as a power of 2.
    Examples:
    --
    1.9.1


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