Subject: Re: [PATCH V2 2/3] powerpc, ptrace: Enable support for transactional memory register sets

From: Anshuman Khandual <[email-masked]>
Date: Fri, 23 May 2014 19:27:18 +0530

On 05/22/2014 10:38 AM, Anshuman Khandual wrote:
> I agree.
> 
>> > 
>> > Maybe we should leave this for another day, and have tm_spr_active
>> > return 0 instead of -ENODEV when the machine doesn't have the hardware,
>> > or not install that hook at all.  Seems like the effect will be the same,
>> > as the note isn't output if ->get fails.

> Agree. Active hooks which return 0 in case of -ENODEV sounds good to me and shall
> incorporate this in the next version.
> 

But from "user_regset_active_fn" definition point of view -ENODEV is the right thing
to do even if we dont use it specifically compared to the return value of 0.