linux-kernel - Re: [PATCH? v2] powerpc: Hard wire PT_SOFTE value to 1 in gpr

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Message-ID: <20200611105830.GB12500@redhat.com>
Date:   Thu, 11 Jun 2020 12:58:31 +0200
From:   Oleg Nesterov <oleg@...hat.com>
To:     Madhavan Srinivasan <maddy@...ux.ibm.com>
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>,
        Michael Ellerman <mpe@...erman.id.au>,
        Paul Mackerras <paulus@...ba.org>,
        Jan Kratochvil <jan.kratochvil@...hat.com>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH? v2] powerpc: Hard wire PT_SOFTE value to 1 in gpr_get()
 too

On 06/11, Madhavan Srinivasan wrote:
>
>
> On 6/10/20 8:37 PM, Oleg Nesterov wrote:
> >Hi,
> >
> >looks like this patch was forgotten.
>
> yep, I missed this. But mpe did have comments for the patch.
>
> https://lkml.org/lkml/2019/9/19/107

Yes, and I thought that I have replied... apparently not, sorry!

So let me repeat, I am fine either way, I do not understand this
ppc-specific code and I can't really test this change.

Let me quote that email from Michael:

	> We could do it like below. I'm 50/50 though on whether it's worth it, or
	> if we should just go with the big ifdef like in your patch.
	
up to you ;)

Hmm. And yes,

> >>This is not consistent and this breaks
> >>http://sourceware.org/systemtap/wiki/utrace/tests/user-regs-peekpoke

this is 404.

Jan, could correct the link above?

Oleg.