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

Anshuman Khandual khandual at linux.vnet.ibm.com
Fri May 23 23:57:18 EST 2014

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.

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