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

[Nathan Chancellor <nathan@kernel.org>]

Hi Ard,

On Thu, Oct 29, 2026 at 02:50:20PM +0100, Ard Biesheuvel wrote:
> From: Ard Biesheuvel <ardb@kernel.org>
> 
> Recent Clang has become more finicky when it comes to overriding the
> type macros that the freestanding stdint.h consumes when defining the
> uintXX_t types, and so it is time to finally get rid of this entirely.
> 
> So instead of making stdint.h (which comes from the compiler when
> -ffreestanding is set on the command line) agree with the kernel's
> linux/types.h header, avoid the latter entirely in the compilation units
> that actually use the NEON intrinsics (which are always leaf functions
> that are not tightly coupled to kernel APIs).
> 
> Note that the disagreements are about long vs. long long on arm64, and
> long vs. int on 32-bit ARM, so never about types that actually have
> conflicting representations.
> 
> Cc: Christoph Hellwig <hch@lst.de>
> Cc: Eric Biggers <ebiggers@kernel.org>
> Cc: Nathan Chancellor <nathan@kernel.org>
> 
> 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

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.

-- 
Cheers,
Nathan