Re: [PATCH] x86/cpufeatures: Free up unused feature bits

[Dave Hansen]

On 11/8/24 10:42, Sohil Mehta wrote:
>> udev might try to load the old module on a new CPU with
>> X86_FEATURE_WHIZZY_NEW_FEATURE that's not a P3.
>>
> So an old coretemp module could get loaded when the above TDX bit is
> set. Not sure how likely this scenario is or what can we do to avoid it now?

Pretty unlikely that someone would change the bit, have modversions
disabled, *AND* need to load a module built before the bit changed.

I think we can mostly ignore it.  If we break something, it _can_ be
backed out and fixed.