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[0/4] crypto: lib/chacha - improve type safety

Message ID 20250505181824.647138-1-ebiggers@kernel.org
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Series crypto: lib/chacha - improve type safety | expand

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Eric Biggers May 5, 2025, 6:18 p.m. UTC 
This series can also be retrieved from:

    git fetch https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git chacha-prototypes-v1

This series improves type safety and clarity in the ChaCha functions by
strongly typing the state array and adding explicit array bounds for
other fixed-length arrays.  No functional changes.

Eric Biggers (4):
  crypto: lib/chacha - strongly type the ChaCha state
  crypto: lib/chacha - use struct assignment to copy state
  crypto: lib/chacha - add strongly-typed state zeroization
  crypto: lib/chacha - add array bounds to function prototypes

 arch/arm/lib/crypto/chacha-glue.c             | 34 ++++----
 arch/arm/lib/crypto/chacha-scalar-core.S      |  5 +-
 arch/arm64/lib/crypto/chacha-neon-glue.c      | 27 ++++---
 arch/mips/lib/crypto/chacha-glue.c            |  6 +-
 arch/powerpc/lib/crypto/chacha-p10-glue.c     | 17 ++--
 arch/powerpc/lib/crypto/chacha-p10le-8x.S     |  6 +-
 arch/riscv/lib/crypto/chacha-riscv64-glue.c   |  9 ++-
 arch/riscv/lib/crypto/chacha-riscv64-zvkb.S   | 10 +--
 arch/s390/lib/crypto/chacha-glue.c            | 13 +--
 arch/x86/lib/crypto/chacha_glue.c             | 62 ++++++++------
 crypto/chacha.c                               | 20 ++---
 drivers/char/random.c                         | 41 +++++-----
 fs/bcachefs/checksum.c                        | 18 ++---
 include/crypto/chacha.h                       | 80 ++++++++++++-------
 lib/crypto/chacha.c                           | 40 +++++-----
 lib/crypto/chacha20poly1305-selftest.c        |  8 +-
 lib/crypto/chacha20poly1305.c                 | 53 ++++++------
 lib/crypto/libchacha.c                        |  2 +-
 .../crypto/chacha20-s390/test-cipher.c        | 10 +--
 19 files changed, 253 insertions(+), 208 deletions(-)


base-commit: 64745a9ca890ed60d78162ec511e1983e1946d73