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Date:   Sat, 29 Apr 2023 13:17:39 -0700 (PDT)
Subject:     Re: [PATCH] RISC-V: fixup in-flight collision with ARCH_WANT_OPTIMIZE_VMEMMAP rename
In-Reply-To: <20230429-neurology-sudoku-8d53b23d01b8@spud>
CC:     Conor Dooley <conor.dooley@microchip.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        akpm@linux-foundation.org, aneesh.kumar@linux.ibm.com,
        linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
        lukas.bulwahn@gmail.com
From:   Palmer Dabbelt <palmer@dabbelt.com>
To:     Conor Dooley <conor@kernel.org>
Message-ID: <mhng-b5a20207-95a2-4607-9e6c-52396d569d91@palmer-ri-x1c9a>
Mime-Version: 1.0 (MHng)
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 8bit
Precedence: bulk

On Sat, 29 Apr 2023 02:32:33 PDT (-0700), Conor Dooley wrote:
> On Sat, Apr 29, 2023 at 10:27:33AM +0100, Conor Dooley wrote:
>> From: Conor Dooley <conor.dooley@microchip.com>
>> 
>> Lukas warned that ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP had been
>> renamed in the mm tree & that RISC-V would need a fixup as part of the
>> merge. The warning was missed however, and RISC-V is selecting the
>> orphaned Kconfig option.
>> 
>> Fixes: 89d77f71f493 ("Merge tag 'riscv-for-linus-6.4-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux")
>> Reported-by: Lukas Bulwhan <lukas.bulwhan@gmail.com>
>
> That should have been Lukas Bulwahn <lukas.bulwahn@gmail.com>.
> This is what I get for hand-typing an email address that I could have
> copied from lore I suppose.
>
>> Link: https://lore.kernel.org/linux-riscv/CAKXUXMyVeg2kQK_edKHtMD3eADrDK_PKhCSVkMrLDdYgTQQ5rg@mail.gmail.com/
>> Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
>> ---
>> I guess you picking this up for your second PR makes the most sense
>> Palmer?

Yep, except it crashes b4

$ b4 shazam -lts https://lore.kernel.org/all/20230429-trilogy-jolly-12bf5c53d62d@spud/
Grabbing thread from lore.kernel.org/all/20230429-trilogy-jolly-12bf5c53d62d%40spud/t.mbox.gz
Analyzing 2 messages in the thread
Checking attestation on all messages, may take a moment...
Traceback (most recent call last):
  File "/home/palmer/.local/src/b4/b4/command.py", line 383, in <module>
    cmd()
  File "/home/palmer/.local/src/b4/b4/command.py", line 366, in cmd
    cmdargs.func(cmdargs)
  File "/home/palmer/.local/src/b4/b4/command.py", line 100, in cmd_shazam
    b4.mbox.main(cmdargs)
  File "/home/palmer/.local/src/b4/b4/mbox.py", line 713, in main
    make_am(msgs, cmdargs, msgid)
  File "/home/palmer/.local/src/b4/b4/mbox.py", line 101, in make_am
    am_msgs = lser.get_am_ready(noaddtrailers=cmdargs.noaddtrailers,
  File "/home/palmer/.local/src/b4/b4/__init__.py", line 552, in get_am_ready
    checkmark, trailers, attcrit = lmsg.get_attestation_trailers(attpolicy, maxdays)
  File "/home/palmer/.local/src/b4/b4/__init__.py", line 1319, in get_attestation_trailers
    for attestor in self.attestors:
  File "/home/palmer/.local/src/b4/b4/__init__.py", line 1158, in attestors
    self._load_patatt_attestors()
  File "/home/palmer/.local/src/b4/b4/__init__.py", line 1261, in _load_patatt_attestors
    patatt_config = patatt.get_config_from_git(r'patatt\..*', multivals=['keyringsrc'])
AttributeError: module 'patatt' has no attribute 'get_config_from_git'

So I probably need to just go update my setup, I've got a bunch of wacky stuff.
I'll try and remember to do so, but I'm going to scrub through other bits
first...

Reviewed-by: Palmer Dabbelt <palmer@rivosinc.com>

>> 
>> CC: Palmer Dabbelt <palmer@dabbelt.com>
>> CC: Linus Torvalds <torvalds@linux-foundation.org>
>> CC: Andrew Morton <akpm@linux-foundation.org>
>> CC: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
>> CC: Lukas Bulwhan <lukas.bulwhan@gmail.com>
>> CC: linux-riscv@lists.infradead.org
>> CC: linux-kernel@vger.kernel.org
>> ---
>>  arch/riscv/Kconfig | 2 +-
>>  1 file changed, 1 insertion(+), 1 deletion(-)
>> 
>> diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
>> index 5c88ac4b52be..e1bdb3fb16cc 100644
>> --- a/arch/riscv/Kconfig
>> +++ b/arch/riscv/Kconfig
>> @@ -46,9 +46,9 @@ config RISCV
>>  	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
>>  	select ARCH_WANT_FRAME_POINTERS
>>  	select ARCH_WANT_GENERAL_HUGETLB if !RISCV_ISA_SVNAPOT
>> -	select ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP
>>  	select ARCH_WANT_HUGE_PMD_SHARE if 64BIT
>>  	select ARCH_WANT_LD_ORPHAN_WARN if !XIP_KERNEL
>> +	select ARCH_WANT_OPTIMIZE_VMEMMAP
>>  	select ARCH_WANTS_THP_SWAP if HAVE_ARCH_TRANSPARENT_HUGEPAGE
>>  	select BINFMT_FLAT_NO_DATA_START_OFFSET if !MMU
>>  	select BUILDTIME_TABLE_SORT if MMU
>> -- 
>> 2.39.2
>>