linux-kernel - Re: [PATCHv3 2/2] serial/sysrq: Add MAGIC_SYSRQ_SERIAL

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Date:   Fri, 6 Mar 2020 14:50:51 +0000
From:   Dmitry Safonov <dima@...sta.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org,
        Dmitry Safonov <0x7f454c46@...il.com>,
        Iurii Zaikin <yzaikin@...gle.com>,
        Jiri Slaby <jslaby@...e.com>, Joe Perches <joe@...ches.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Vasiliy Khoruzhick <vasilykh@...sta.com>,
        linux-serial@...r.kernel.org
Subject: Re: [PATCHv3 2/2] serial/sysrq: Add MAGIC_SYSRQ_SERIAL_SEQUENCE

On 3/6/20 12:55 PM, Greg Kroah-Hartman wrote:
> On Mon, Mar 02, 2020 at 05:51:35PM +0000, Dmitry Safonov wrote:
>> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
>> index 69def4a9df00..38a8f3c99579 100644
>> --- a/lib/Kconfig.debug
>> +++ b/lib/Kconfig.debug
>> @@ -431,6 +431,14 @@ config MAGIC_SYSRQ_SERIAL
>>  	  This option allows you to decide whether you want to enable the
>>  	  magic SysRq key.
>>  
>> +config MAGIC_SYSRQ_SERIAL_SEQUENCE
>> +	string "Char sequence that enables magic SysRq over serial"
>> +	depends on MAGIC_SYSRQ_SERIAL
>> +	default ""
>> +	help
>> +	  Specifies a sequence of characters that can follow BREAK to enable
>> +	  SysRq on a serial console.
> 
> 
> Can you send a follow-on patch that adds some more text here.  Something
> like :
> 	If you do not know what to do, just select an empty string and
> 	the option will not be enabled.
> 
> or something like that to make it more obvious what almost everyone will
> want to do here.

Oh yes, makes sense, will send a patch.

Thanks,
          Dmitry