linux-kernel - Re: [PATCH v2 00/12] powerpc: Cleanup use of 'struct ppc

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Message-ID: <e28c4639-00b3-6bf9-6c5e-72e251372cb4@csgroup.eu>
Date:   Tue, 8 Jun 2021 14:46:22 +0200
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Michael Ellerman <mpe@...erman.id.au>
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        naveen.n.rao@...ux.vnet.ibm.com, jniethe5@...il.com,
        Paul Mackerras <paulus@...ba.org>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: Re: [PATCH v2 00/12] powerpc: Cleanup use of 'struct ppc_inst'

Hi Michael,

Le 20/05/2021 à 15:50, Christophe Leroy a écrit :
> This series is a cleanup of the use of 'struct ppc_inst'.
> 
> A confusion is made between internal representation of powerpc
> instructions with 'struct ppc_inst' and in-memory code which is
> and will always be an array of 'unsigned int'.
> 
> This series cleans it up.
> 
> First patch is fixing detection of missing '__user' flag by sparse
> when using get_user_instr().
> 
> Last part of the series does some source code cleanup in
> optprobes, it is put at the ends of this series because of
> clashes with the 'struct ppc_inst' cleanups.

What are your plans about this series ? I fear that the more we wait the more we get additional bad 
uses of 'struct ppc_inst'.
There are several people working around places that play with instructions, so I think the sooner it 
gets cleaned the better it is. Do you agree ?

Thanks
Christophe