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Message-ID: <87k12usr21.fsf@mpe.ellerman.id.au>
Date:   Sun, 05 Apr 2020 10:40:38 +1000
From:   Michael Ellerman <mpe@...erman.id.au>
To:     Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@....fr>,
        linuxppc-dev@...ts.ozlabs.org, Michal Suchanek <msuchanek@...e.de>
Cc:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Allison Randal <allison@...utok.net>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Arnd Bergmann <arnd@...db.de>,
        Thiago Jung Bauermann <bauerman@...ux.ibm.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Claudio Carvalho <cclaudio@...ux.ibm.com>,
        "David S. Miller" <davem@...emloft.net>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        Eric Richter <erichte@...ux.ibm.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Gustavo Luiz Duarte <gustavold@...ux.ibm.com>,
        Hari Bathini <hbathini@...ux.ibm.com>,
        Jordan Niethe <jniethe5@...il.com>,
        Jiri Olsa <jolsa@...hat.com>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        Mark Rutland <mark.rutland@....com>,
        Masahiro Yamada <masahiroy@...nel.org>,
        Mauro Carvalho Chehab <mchehab+huawei@...nel.org>,
        Michael Neuling <mikey@...ling.org>,
        Ingo Molnar <mingo@...hat.com>,
        Namhyung Kim <namhyung@...nel.org>,
        Nayna Jain <nayna@...ux.ibm.com>,
        Paul Mackerras <paulus@...ba.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Rob Herring <robh@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Valentin Schneider <valentin.schneider@....com>,
        Alexander Viro <viro@...iv.linux.org.uk>
Subject: Re: [PATCH v11 0/8] Disable compat cruft on ppc64le v11

Nicholas Piggin <npiggin@...il.com> writes:
> Christophe Leroy's on April 3, 2020 5:26 pm:
>> Le 03/04/2020 à 09:25, Nicholas Piggin a écrit :
>>> Michal Suchanek's on March 19, 2020 10:19 pm:
>>>> Less code means less bugs so add a knob to skip the compat stuff.
>>>>
>>>> Changes in v2: saner CONFIG_COMPAT ifdefs
>>>> Changes in v3:
>>>>   - change llseek to 32bit instead of builing it unconditionally in fs
>>>>   - clanup the makefile conditionals
>>>>   - remove some ifdefs or convert to IS_DEFINED where possible
>>>> Changes in v4:
>>>>   - cleanup is_32bit_task and current_is_64bit
>>>>   - more makefile cleanup
>>>> Changes in v5:
>>>>   - more current_is_64bit cleanup
>>>>   - split off callchain.c 32bit and 64bit parts
>>>> Changes in v6:
>>>>   - cleanup makefile after split
>>>>   - consolidate read_user_stack_32
>>>>   - fix some checkpatch warnings
>>>> Changes in v7:
>>>>   - add back __ARCH_WANT_SYS_LLSEEK to fix build with llseek
>>>>   - remove leftover hunk
>>>>   - add review tags
>>>> Changes in v8:
>>>>   - consolidate valid_user_sp to fix it in the split callchain.c
>>>>   - fix build errors/warnings with PPC64 !COMPAT and PPC32
>>>> Changes in v9:
>>>>   - remove current_is_64bit()
>>>> Chanegs in v10:
>>>>   - rebase, sent together with the syscall cleanup
>>>> Changes in v11:
>>>>   - rebase
>>>>   - add MAINTAINERS pattern for ppc perf
>>> 
>>> These all look good to me. I had some minor comment about one patch but
>>> not really a big deal and there were more cleanups on top of it, so I
>>> don't mind if it's merged as is.
>>> 
>>> Actually I think we have a bit of stack reading fixes for 64s radix now
>>> (not a bug fix as such, but we don't need the hash fault logic in radix),
>>> so if I get around to that I can propose the changes in that series.
>>> 
>> 
>> As far as I can see, there is a v12
>
> For the most part I was looking at the patches in mpe's next-test
> tree on github, if that's the v12 series, same comment applies but
> it's a pretty small nitpick.

Yeah I have v12 in my tree.

This has floated around long enough (our fault), so I'm going to take it
and we can fix anything up later.

cheers

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