linux-kernel - Re: [REVIEW][PATCH 5/9] signal/powerpc: Factor the common exception code into exception

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Date:   Fri, 21 Sep 2018 18:38:07 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     "Eric W. Biederman" <ebiederm@...ssion.com>
Cc:     linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>
Subject: Re: [REVIEW][PATCH 5/9] signal/powerpc: Factor the common exception
 code into exception_common

Hi Eric,

On Tue, 18 Sep 2018 19:58:46 +0200 "Eric W. Biederman" <ebiederm@...ssion.com> wrote:
>
> It is brittle and wrong to populate si_pkey when there was not a pkey
> exception.  The field does not exist for all si_codes and in some
> cases another field exists in the same memory location.
> 
> So factor out the code that all exceptions handlers must run
> into exception_common, leaving the individual exception handlers
> to generate the signals themselves.
> 
> Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com>

Clearly no change in semantics.

Reviewed-by: Stephen Rothwell <sfr@...b.auug.org.au>

-- 
Cheers,
Stephen Rothwell

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