[PATCH v2 0/2] Use __u128 in arm64 UAPI headers

Will Deacon will at kernel.org
Fri Jun 26 07:17:27 PDT 2026


Hi folks,

This is version two of the patch I previously sent here:

  https://lore.kernel.org/r/20260619130835.5678-1-will@kernel.org

I even briefly queued that version up, but it exploded spectacularly
when building the kselftests for arm64 [1] [2]. So the only change since
v1 is the addition of a preliminary patch that adds the '__u128' typedef
to the private copy of linux/types.h used by the tools/ directory.

I plan to take this all via the arm64 tree unless anybody objects.

Cheers,

Will

[1] https://lore.kernel.org/r/202606240441.7eZ1TIRM-lkp@intel.com
[2] https://lore.kernel.org/r/ajvGS7UBpWzJtzkw@sirena.org.uk

Cc: Arnd Bergmann <arnd at arndb.de>
Cc: Arnaldo Carvalho de Melo <acme at redhat.com>
Cc: Nick Desaulniers <nick.desaulniers+lkml at gmail.com>
Cc: David Matlack <dmatlack at google.com>
Cc: Steffen Eiden <seiden at linux.ibm.com>
Cc: Andreas Grapentin <gra at linux.ibm.com>
Cc: Catalin Marinas <catalin.marinas at arm.com>
Cc: Dave Martin <dave.martin at arm.com>
Cc: Mark Rutland <mark.rutland at arm.com>
Cc: Marc Zyngier <maz at kernel.org>

--->8

Will Deacon (2):
  tools: linux/types.h: Add 128-bit integer types for arm64 UAPI
    structures
  arm64: uapi: Use __u128 instead of __uint128_t in UAPI headers

 arch/arm64/include/uapi/asm/ptrace.h     | 12 ++++++------
 arch/arm64/include/uapi/asm/sigcontext.h |  6 +++---
 tools/include/linux/types.h              |  5 +++++
 3 files changed, 14 insertions(+), 9 deletions(-)

-- 
2.55.0.rc0.799.gd6f94ed593-goog




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