Re: [PATCH 0/4] Get rid of all NEON intrinsics stdint.h type hacks

["Ard Biesheuvel" <ardb@kernel.org>]

cc Catalin for real this time.

TL;DR Clang builds are broken due to type override hacks that we
don't actually need.

Please consider these for the arm64 tree, preferably as fixes.

On Fri, 13 Nov 2026, at 21:30, Eric Biggers wrote:
> On Fri, Nov 13, 2026 at 09:05:32PM +0100, Ard Biesheuvel wrote:
>> (cc Catalin)
>> 
>> Full thread:
>> https://lore.kernel.org/all/20261029135020.272082-6-ardb+git@google.com/
>> 
>> On Fri, 13 Nov 2026, at 20:01, Nathan Chancellor wrote:
>> > On Fri, Nov 13, 2026 at 09:23:03AM +0100, Ard Biesheuvel wrote:
>> >> On Thu, 12 Nov 2026, at 23:27, Nathan Chancellor wrote:
>> >> > Who do you think should take this series? It would be nice if it could
>> >> > start making its way to mainline sooner rather than later since tip of
>> >> > tree clang builds have been broken for over a month at this point.
>> >> >
>> >> 
>> >> Are the first two patches sufficient for that? Perhaps Eric can take them
>> >> through the CRC or libcrypto trees, and I can send the remaining ones
>> >> through the respective arch trees the following cycle.
>> >
>> > Unfortunately not :/ we need the third patch to resolve the error since
>> > that is where the conflict is originating.
>> >
>> 
>> OK in that case, maybe Catalin can take the whole thing via the arm64 tree? 
>> 
>> 
>> 
>> Diffstat:
>> 
>> Ard Biesheuvel (4):
>>   lib/crc: Don't include <linux/types.h> in NEON intrinsics code
>>   xor: arm/arm64: Move NEON xor_gen() dispatch into the glue code
>>   arm64: Drop stdint.h type overrides from asm/neon-intrinsics.h
>>   ARM: Drop stdint.h type overrides from asm/neon-intrinsics.h
>> 
>>  Documentation/arch/arm/kernel_mode_neon.rst | 10 +++--
>>  arch/arm/include/asm/neon-intrinsics.h      | 43 +++-----------------
>>  arch/arm64/include/asm/neon-intrinsics.h    | 24 +++--------
>>  lib/crc/crc64-neon.c                        | 10 ++---
>>  lib/raid/xor/arm/xor-neon-glue.c            |  3 ++
>>  lib/raid/xor/arm/xor-neon.h                 | 16 +++++++-
>>  lib/raid/xor/arm64/xor-eor3.c               | 15 ++-----
>>  lib/raid/xor/arm64/xor-neon-glue.c          |  5 +++
>>  lib/raid/xor/arm64/xor-neon.h               | 31 ++++++++++++--
>>  lib/raid/xor/xor-neon.c                     | 16 ++------
>>  10 files changed, 78 insertions(+), 95 deletions(-)
>
> I agree the arm64 tree makes the most sense for cross-subsystem arm and
> arm64 infrastructure changes like this.
>
> - Eric