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    Subject[PATCH v3 01/17] kexec: quiet down kexec reboot
    Date
    Here is a regular kexec command sequence and output:
    =====
    $ kexec --reuse-cmdline -i --load Image
    $ kexec -e
    [ 161.342002] kexec_core: Starting new kernel

    Welcome to Buildroot
    buildroot login:
    =====

    Even when "quiet" kernel parameter is specified, "kexec_core: Starting
    new kernel" is printed.

    This message has KERN_EMERG level, but there is no emergency, it is a
    normal kexec operation, so quiet it down to appropriate KERN_NOTICE.

    Machines that have slow console baud rate benefit from less output.

    Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com>
    Reviewed-by: Simon Horman <horms@verge.net.au>
    ---
    kernel/kexec_core.c | 2 +-
    1 file changed, 1 insertion(+), 1 deletion(-)

    diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
    index d5870723b8ad..2c5b72863b7b 100644
    --- a/kernel/kexec_core.c
    +++ b/kernel/kexec_core.c
    @@ -1169,7 +1169,7 @@ int kernel_kexec(void)
    * CPU hotplug again; so re-enable it here.
    */
    cpu_hotplug_enable();
    - pr_emerg("Starting new kernel\n");
    + pr_notice("Starting new kernel\n");
    machine_shutdown();
    }

    --
    2.23.0
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