[PATCH v2 00/14] arm64: Remove unused big-endian support

[Will Deacon]

Hi folks,

This is version two of the arm64 big-endian removal series previously
posted here:

  https://lore.kernel.org/linux-arm-kernel/20260811140132.22778-1-will@kernel.org/

Changes since v1 include:
  * Rebased onto v7.3-rc1
  * Removed some now-redundant driver Kconfig entries
  * Force little-endian during boot
  * Minor stylistic cleanups

Arnd, I wasn't quite as aggressive with the drivers Kconfigs as your
suggestion at [1], since I didn't want to prevent COMPILE_TEST from a
big-endian architecture in cases where it is currently supported.

Cheers,

Will

[1] https://lore.kernel.org/linux-arm-kernel/6632712f-7782-4580-84c0-62124a016f46@app.fastmail.com/

Cc: Arnd Bergmann <arnd at arndb.de>
Cc: Ard Biesheuvel <ardb at kernel.org>
Cc: Eric Biggers <ebiggers at kernel.org>
Cc: Daniel Borkmann <daniel at iogearbox.net>
Cc: Catalin Marinas <catalin.marinas at arm.com>
Cc: Alexei Starovoitov <ast at kernel.org>
Cc: Oliver Upton <oupton at kernel.org>
Cc: Herbert Xu <herbert at gondor.apana.org.au> 
Cc: Marc Zyngier <maz at kernel.org>

--->8

Will Deacon (14):
  selftests/arm64: Remove big-endian support
  arm64: bpf: Remove big-endian support from the JIT compiler
  arm64: crypto: Assume a little-endian kernel
  arm64: lib: Assume a little-endian kernel in custom library routines
  arm64: lib: Assume a little-endian kernel in optimised string routines
  arm64: assembler: Remove endianness helper macros
  arm64: head: Force little-endian early during boot
  arm64: vdso32: Always build compat vDSO object as little-endian
  KVM: arm64: Remove support for a big-endian hypervisor object
  arm64: Remove all usage of CONFIG_CPU_BIG_ENDIAN
  arm64: Remove all usage of __AARCH64EB__
  arm64: image: Remove endianness handling for generating image header
  arm64: Kbuild: Remove vestigial big-endian support
  drivers: Kconfig: Simplify dependencies on ARM64 && !CPU_BIG_ENDIAN

 arch/arm64/Kconfig                           | 35 +-------
 arch/arm64/Makefile                          | 12 +--
 arch/arm64/crypto/aes-ce-ccm-core.S          |  4 +-
 arch/arm64/crypto/aes-neonbs-core.S          |  4 +-
 arch/arm64/crypto/ghash-ce-core.S            |  6 +-
 arch/arm64/crypto/sm4-ce-cipher-core.S       |  4 +-
 arch/arm64/include/asm/assembler.h           | 42 ---------
 arch/arm64/include/asm/compat.h              | 14 ---
 arch/arm64/include/asm/elf.h                 | 12 ---
 arch/arm64/include/asm/processor.h           |  2 -
 arch/arm64/include/asm/ptrace.h              |  6 --
 arch/arm64/include/asm/sysreg.h              | 50 +++--------
 arch/arm64/include/asm/thread_info.h         |  5 --
 arch/arm64/include/asm/word-at-a-time.h      |  6 --
 arch/arm64/include/uapi/asm/byteorder.h      |  4 -
 arch/arm64/kernel/fpsimd.c                   | 21 +----
 arch/arm64/kernel/head.S                     | 25 +-----
 arch/arm64/kernel/image.h                    | 38 +-------
 arch/arm64/kernel/kexec_image.c              |  5 +-
 arch/arm64/kernel/kgdb.c                     |  6 +-
 arch/arm64/kernel/ptrace.c                   |  8 +-
 arch/arm64/kernel/signal32.c                 | 13 ---
 arch/arm64/kernel/sys32.c                    |  5 --
 arch/arm64/kernel/vdso32/Makefile            |  4 -
 arch/arm64/kvm/hyp/include/nvhe/spinlock.h   |  4 -
 arch/arm64/kvm/hyp/nvhe/gen-hyprel.c         | 16 ----
 arch/arm64/lib/csum.c                        | 17 ----
 arch/arm64/lib/memchr.S                      |  2 +-
 arch/arm64/lib/memcmp.S                      |  2 -
 arch/arm64/lib/strcmp.S                      | 34 +------
 arch/arm64/lib/strlen.S                      | 26 ------
 arch/arm64/lib/strncmp.S                     | 93 ++------------------
 arch/arm64/lib/strnlen.S                     | 16 +---
 arch/arm64/mm/extable.c                      |  5 --
 arch/arm64/net/bpf_jit_comp.c                | 11 ---
 drivers/hv/Kconfig                           |  3 +-
 drivers/misc/vmw_vmci/Kconfig                |  2 +-
 drivers/net/ethernet/microsoft/Kconfig       |  2 +-
 drivers/soc/tegra/Kconfig                    |  5 --
 tools/testing/selftests/arm64/fp/fp-ptrace.c | 19 +---
 tools/testing/selftests/rseq/rseq-arm64.h    |  5 --
 41 files changed, 54 insertions(+), 539 deletions(-)

-- 
2.55.0.979.g7e5102b832-goog