Re: [PATCH v1] ARM: vfp: Use long jump to fix THUMB2 kernel compilation error

[Dmitry Osipenko]

09.11.2020 10:25, Ard Biesheuvel пишет:
...
>>> So the options are
>>>
>>> a) merge my patch that adds 2 bytes of opcode to the Thumb2 build
>>> b) merge Dmitry's patch that adds an unconditional literal load to all builds
>>> c) remove kernel mode handling from vfp_support_entry() [my other patch]
>>> d) move sections around so that vfp_kmode_exception is guaranteed to
>>> be in range.
>>> e) do nothing
...
>> The performance argument is questionable to me, to be honest. In
>> practice the performance difference should be absolutely negligible for
>> either of the proposed options, it should stay in a noise even if
>> somebody thoroughly counting cycles, IMO.
>>
>> I'm still thinking that the best option will be to apply a).
>>
> 
> Can we take that as an acked-by?

Are you asking me for the ack? I think this is a more appropriate
question to Russel. I'm not arm/ maintainer, but could give r-b and t-b.

If you're going to follow approach that I'm suggesting with a) + d),
then could you please resend the two patches in a single series? The
first one-line patch-fix should contain the fixes tag.