linux-kernel - Re: [PATCH v1 0/5] Implement livepatch on PPC32

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Message-ID: <b3c82c17-b659-a28d-b90b-8d353c7d4edd@csgroup.eu>
Date:   Thu, 25 Nov 2021 06:49:00 +0100
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Michael Ellerman <mpe@...erman.id.au>,
        Josh Poimboeuf <jpoimboe@...hat.com>,
        Jiri Kosina <jikos@...nel.org>,
        Miroslav Benes <mbenes@...e.cz>,
        Petr Mladek <pmladek@...e.com>,
        Joe Lawrence <joe.lawrence@...hat.com>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>,
        "Naveen N . Rao" <naveen.n.rao@...ux.vnet.ibm.com>
Cc:     live-patching@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 0/5] Implement livepatch on PPC32



Le 24/11/2021 à 23:34, Michael Ellerman a écrit :
> Christophe Leroy <christophe.leroy@...roup.eu> writes:
>> This series implements livepatch on PPC32.
>>
>> This is largely copied from what's done on PPC64.
>>
>> Christophe Leroy (5):
>>    livepatch: Fix build failure on 32 bits processors
>>    powerpc/ftrace: No need to read LR from stack in _mcount()
>>    powerpc/ftrace: Add module_trampoline_target() for PPC32
>>    powerpc/ftrace: Activate HAVE_DYNAMIC_FTRACE_WITH_REGS on PPC32
>>    powerpc/ftrace: Add support for livepatch to PPC32
> 
> I think we know patch 5 will need a respin because of the STRICT RWX vs
> livepatching issue (https://github.com/linuxppc/issues/issues/375).
> 
> So should I take patches 2,3,4 for now?
> 

Yes you can take them now I think.

Thanks
Christophe