[GIT PULL] CRC updates for 6.14

Eric Biggers
2025-01-19T22:51:21Z

The following changes since commit 40384c840ea1944d7c5a392e8975ed088ecf0b37:

Linux 6.13-rc1 (2024-12-01 14:28:56 -0800)

are available in the Git repository at:

https://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux.git tags/crc-for-linus

for you to fetch changes up to 72914faebaabd77d8a471af4662ca0b938011c49:

MAINTAINERS: add entry for CRC library (2024-12-09 22:09:44 -0800)

----------------------------------------------------------------

- Reorganize the architecture-optimized CRC32 and CRC-T10DIF code to be
directly accessible via the library API, instead of requiring the
crypto API. This is much simpler and more efficient.

- Convert some users such as ext4 to use the CRC32 library API instead
of the crypto API. More conversions like this will come later.

- Add a KUnit test that tests and benchmarks multiple CRC variants.
Remove older, less-comprehensive tests that are made redundant by
this.

- Add an entry to MAINTAINERS for the kernel's CRC library code. I'm
volunteering to maintain it. I have additional cleanups and
optimizations planned for future cycles.

These patches have been in linux-next since -rc1.

----------------------------------------------------------------
Eric Biggers (31):
lib/crc32: drop leading underscores from __crc32c_le_base
lib/crc32: improve support for arch-specific overrides
lib/crc32: expose whether the lib is really optimized at runtime
crypto: crc32 - don't unnecessarily register arch algorithms
arm/crc32: expose CRC32 functions through lib
loongarch/crc32: expose CRC32 functions through lib
mips/crc32: expose CRC32 functions through lib
powerpc/crc32: expose CRC32 functions through lib
s390/crc32: expose CRC32 functions through lib
sparc/crc32: expose CRC32 functions through lib
x86/crc32: update prototype for crc_pcl()
x86/crc32: update prototype for crc32_pclmul_le_16()
x86/crc32: expose CRC32 functions through lib
bcachefs: Explicitly select CRYPTO from BCACHEFS_FS
lib/crc32: make crc32c() go directly to lib
ext4: switch to using the crc32c library
jbd2: switch to using the crc32c library
f2fs: switch to using the crc32 library
scsi: target: iscsi: switch to using the crc32c library
lib/crc-t10dif: stop wrapping the crypto API
lib/crc-t10dif: add support for arch overrides
crypto: crct10dif - expose arch-optimized lib function
x86/crc-t10dif: expose CRC-T10DIF function through lib
arm/crc-t10dif: expose CRC-T10DIF function through lib
arm64/crc-t10dif: expose CRC-T10DIF function through lib
powerpc/crc-t10dif: expose CRC-T10DIF function through lib
lib/crc_kunit.c: add KUnit test suite for CRC library functions
lib/crc16_kunit: delete obsolete crc16_kunit.c
lib/crc32test: delete obsolete crc32test.c
powerpc/crc: delete obsolete crc-vpmsum_test.c
MAINTAINERS: add entry for CRC library

MAINTAINERS | 11 +
arch/arm/Kconfig | 2 +
arch/arm/configs/milbeaut_m10v_defconfig | 1 -
arch/arm/configs/multi_v7_defconfig | 1 -
arch/arm/crypto/Kconfig | 25 -
arch/arm/crypto/Makefile | 4 -
arch/arm/crypto/crc32-ce-glue.c | 247 ------
arch/arm/crypto/crct10dif-ce-glue.c | 124 ---
arch/arm/lib/Makefile | 6 +
.../crct10dif-ce-core.S => lib/crc-t10dif-core.S} | 0
arch/arm/lib/crc-t10dif-glue.c | 80 ++
.../{crypto/crc32-ce-core.S => lib/crc32-core.S} | 5 +-
arch/arm/lib/crc32-glue.c | 123 +++
arch/arm64/Kconfig | 2 +
arch/arm64/configs/defconfig | 1 -
arch/arm64/crypto/Kconfig | 10 -
arch/arm64/crypto/Makefile | 3 -
arch/arm64/crypto/crct10dif-ce-glue.c | 132 ----
arch/arm64/lib/Makefile | 6 +-
.../crct10dif-ce-core.S => lib/crc-t10dif-core.S} | 0
arch/arm64/lib/crc-t10dif-glue.c | 81 ++
arch/arm64/lib/crc32-glue.c | 25 +-
arch/loongarch/Kconfig | 1 +
arch/loongarch/configs/loongson3_defconfig | 1 -
arch/loongarch/crypto/Kconfig | 9 -
arch/loongarch/crypto/Makefile | 2 -
arch/loongarch/crypto/crc32-loongarch.c | 300 --------
arch/loongarch/lib/Makefile | 2 +
arch/loongarch/lib/crc32-loongarch.c | 135 ++++
arch/m68k/configs/amiga_defconfig | 1 -
arch/m68k/configs/apollo_defconfig | 1 -
arch/m68k/configs/atari_defconfig | 1 -
arch/m68k/configs/bvme6000_defconfig | 1 -
arch/m68k/configs/hp300_defconfig | 1 -
arch/m68k/configs/mac_defconfig | 1 -
arch/m68k/configs/multi_defconfig | 1 -
arch/m68k/configs/mvme147_defconfig | 1 -
arch/m68k/configs/mvme16x_defconfig | 1 -
arch/m68k/configs/q40_defconfig | 1 -
arch/m68k/configs/sun3_defconfig | 1 -
arch/m68k/configs/sun3x_defconfig | 1 -
arch/mips/Kconfig | 5 +-
arch/mips/configs/eyeq5_defconfig | 1 -
arch/mips/configs/eyeq6_defconfig | 1 -
arch/mips/configs/generic/32r6.config | 2 -
arch/mips/configs/generic/64r6.config | 1 -
arch/mips/crypto/Kconfig | 9 -
arch/mips/crypto/Makefile | 2 -
arch/mips/crypto/crc32-mips.c | 354 ---------
arch/mips/lib/Makefile | 2 +
arch/mips/lib/crc32-mips.c | 192 +++++
arch/powerpc/Kconfig | 2 +
arch/powerpc/configs/powernv_defconfig | 2 -
arch/powerpc/configs/ppc64_defconfig | 3 -
arch/powerpc/crypto/Kconfig | 33 -
arch/powerpc/crypto/Makefile | 5 -
arch/powerpc/crypto/crc-vpmsum_test.c | 133 ----
arch/powerpc/crypto/crc32c-vpmsum_glue.c | 173 -----
arch/powerpc/lib/Makefile | 6 +
.../crc-t10dif-glue.c} | 69 +-
arch/powerpc/lib/crc32-glue.c | 92 +++
arch/powerpc/{crypto => lib}/crc32-vpmsum_core.S | 0
arch/powerpc/{crypto => lib}/crc32c-vpmsum_asm.S | 0
.../powerpc/{crypto => lib}/crct10dif-vpmsum_asm.S | 0
arch/riscv/Kconfig | 1 +
arch/riscv/lib/Makefile | 3 +-
arch/riscv/lib/{crc32.c => crc32-riscv.c} | 25 +-
arch/s390/Kconfig | 1 +
arch/s390/configs/debug_defconfig | 2 -
arch/s390/configs/defconfig | 1 -
arch/s390/crypto/Kconfig | 12 -
arch/s390/crypto/Makefile | 2 -
arch/s390/crypto/crc32-vx.c | 306 --------
arch/s390/lib/Makefile | 3 +
arch/s390/lib/crc32-glue.c | 92 +++
arch/s390/{crypto => lib}/crc32-vx.h | 0
arch/s390/{crypto => lib}/crc32be-vx.c | 0
arch/s390/{crypto => lib}/crc32le-vx.c | 0
arch/sparc/Kconfig | 1 +
arch/sparc/crypto/Kconfig | 10 -
arch/sparc/crypto/Makefile | 4 -
arch/sparc/crypto/crc32c_glue.c | 184 -----
arch/sparc/lib/Makefile | 2 +
arch/sparc/lib/crc32_glue.c | 93 +++
arch/sparc/{crypto => lib}/crc32c_asm.S | 2 +-
arch/x86/Kconfig | 2 +
arch/x86/crypto/Kconfig | 32 -
arch/x86/crypto/Makefile | 10 -
arch/x86/crypto/crc32-pclmul_glue.c | 202 -----
arch/x86/crypto/crc32c-intel_glue.c | 250 ------
arch/x86/crypto/crct10dif-pclmul_glue.c | 143 ----
arch/x86/lib/Makefile | 7 +
arch/x86/lib/crc-t10dif-glue.c | 51 ++
arch/x86/lib/crc32-glue.c | 124 +++
.../crc32-pclmul_asm.S => lib/crc32-pclmul.S} | 19 +-
.../crc32c-3way.S} | 63 +-
arch/x86/{crypto => lib}/crct10dif-pcl-asm_64.S | 0
crypto/Kconfig | 1 +
crypto/Makefile | 3 +-
crypto/crc32_generic.c | 8 +-
crypto/crc32c_generic.c | 12 +-
crypto/crct10dif_common.c | 82 --
crypto/crct10dif_generic.c | 82 +-
drivers/target/iscsi/Kconfig | 4 +-
drivers/target/iscsi/iscsi_target.c | 153 ++--
drivers/target/iscsi/iscsi_target_login.c | 50 --
drivers/target/iscsi/iscsi_target_login.h | 1 -
drivers/target/iscsi/iscsi_target_nego.c | 21 +-
fs/bcachefs/Kconfig | 1 +
fs/ext4/Kconfig | 3 +-
fs/ext4/ext4.h | 25 +-
fs/ext4/super.c | 15 -
fs/f2fs/Kconfig | 3 +-
fs/f2fs/f2fs.h | 20 +-
fs/f2fs/super.c | 15 -
fs/jbd2/Kconfig | 2 -
fs/jbd2/journal.c | 30 +-
include/linux/crc-t10dif.h | 28 +-
include/linux/crc32.h | 50 +-
include/linux/crc32c.h | 7 +-
include/linux/jbd2.h | 33 +-
include/target/iscsi/iscsi_target_core.h | 3 -
lib/Kconfig | 121 ++-
lib/Kconfig.debug | 29 +-
lib/Makefile | 4 +-
lib/crc-t10dif.c | 156 ++--
lib/crc16_kunit.c | 155 ----
lib/crc32.c | 24 +-
lib/crc32test.c | 852 ---------------------
lib/crc_kunit.c | 435 +++++++++++
lib/libcrc32c.c | 74 --
tools/testing/selftests/arm64/fp/kernel-test.c | 3 +-
132 files changed, 2035 insertions(+), 4555 deletions(-)
delete mode 100644 arch/arm/crypto/crc32-ce-glue.c
delete mode 100644 arch/arm/crypto/crct10dif-ce-glue.c
rename arch/arm/{crypto/crct10dif-ce-core.S => lib/crc-t10dif-core.S} (100%)
create mode 100644 arch/arm/lib/crc-t10dif-glue.c
rename arch/arm/{crypto/crc32-ce-core.S => lib/crc32-core.S} (98%)
create mode 100644 arch/arm/lib/crc32-glue.c
delete mode 100644 arch/arm64/crypto/crct10dif-ce-glue.c
rename arch/arm64/{crypto/crct10dif-ce-core.S => lib/crc-t10dif-core.S} (100%)
create mode 100644 arch/arm64/lib/crc-t10dif-glue.c
delete mode 100644 arch/loongarch/crypto/crc32-loongarch.c
create mode 100644 arch/loongarch/lib/crc32-loongarch.c
delete mode 100644 arch/mips/crypto/crc32-mips.c
create mode 100644 arch/mips/lib/crc32-mips.c
delete mode 100644 arch/powerpc/crypto/crc-vpmsum_test.c
delete mode 100644 arch/powerpc/crypto/crc32c-vpmsum_glue.c
rename arch/powerpc/{crypto/crct10dif-vpmsum_glue.c => lib/crc-t10dif-glue.c} (50%)
create mode 100644 arch/powerpc/lib/crc32-glue.c
rename arch/powerpc/{crypto => lib}/crc32-vpmsum_core.S (100%)
rename arch/powerpc/{crypto => lib}/crc32c-vpmsum_asm.S (100%)
rename arch/powerpc/{crypto => lib}/crct10dif-vpmsum_asm.S (100%)
rename arch/riscv/lib/{crc32.c => crc32-riscv.c} (91%)
delete mode 100644 arch/s390/crypto/crc32-vx.c
create mode 100644 arch/s390/lib/crc32-glue.c
rename arch/s390/{crypto => lib}/crc32-vx.h (100%)
rename arch/s390/{crypto => lib}/crc32be-vx.c (100%)
rename arch/s390/{crypto => lib}/crc32le-vx.c (100%)
delete mode 100644 arch/sparc/crypto/crc32c_glue.c
create mode 100644 arch/sparc/lib/crc32_glue.c
rename arch/sparc/{crypto => lib}/crc32c_asm.S (92%)
delete mode 100644 arch/x86/crypto/crc32-pclmul_glue.c
delete mode 100644 arch/x86/crypto/crc32c-intel_glue.c
delete mode 100644 arch/x86/crypto/crct10dif-pclmul_glue.c
create mode 100644 arch/x86/lib/crc-t10dif-glue.c
create mode 100644 arch/x86/lib/crc32-glue.c
rename arch/x86/{crypto/crc32-pclmul_asm.S => lib/crc32-pclmul.S} (95%)
rename arch/x86/{crypto/crc32c-pcl-intel-asm_64.S => lib/crc32c-3way.S} (92%)
rename arch/x86/{crypto => lib}/crct10dif-pcl-asm_64.S (100%)
delete mode 100644 crypto/crct10dif_common.c
delete mode 100644 lib/crc16_kunit.c
delete mode 100644 lib/crc32test.c
create mode 100644 lib/crc_kunit.c
delete mode 100644 lib/libcrc32c.c