Re: [Xen-devel] [PATCHv2] x86: Add a tboot Kconfig option

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 19.08.16 at 02:04, <cardoe@xxxxxxxxxx> wrote:
> On 8/18/16 6:44 PM, Derek Straka wrote:
>> Allows for the conditional inclusion of tboot related functionality
>> via Kconfig
>> 
>> The default configuration for the new CONFIG_TBOOT option is 'y', so the
>> behavior out of the box remains unchanged.  The addition of the option 
> allows
>> advanced users to disable system behaviors associated with tboot at compile
>> time rather than relying on the run-time detection and configuration.
>> 
>> The CONFIG_CRYPTO option is 'n' by default and selected by the individual 
> users
>> that require the functionality.  Currently, the only user is tboot.
>> 
>> Signed-off-by: Derek Straka <derek@xxxxxxxxxxx>
>> ---
> 
> Reviewed-by: Doug Goldstein <cardoe@xxxxxxxxxx>
> 
> 
>>  
>> +config CRYPTO
>> +    bool
>> +    default n
>> +
> 
> If a v3 happens (or the committer wants to change it) this can be
> "def_bool n".

This isn't just a "can be", nor should it become def_bool. Defaults
for select only options should be omitted altogether, so that when
a prompt gets added to them and nothing has previously selected
it, the user will be presented with a prompt instead of the already
recorded default of "no" getting used.

But yes, no v3 is needed, this line can easily be dropped while
committing.

Jan


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