[PATCH 0/2] Simplify the shash wrappers for the CRC32 library

From: Eric Biggers
Date: Fri Jun 13 2025 - 14:39:26 EST


This series simplifies how the CRC32 library functions are exposed
through the crypto_shash API. We'll now have just one shash algorithm
each for "crc32" and "crc32c", and their driver names will just always
be "crc32-lib" and "crc32c-lib" respectively. This seems to be all
that's actually needed.

As mentioned in patch 2, this does change the content of
/sys/fs/btrfs/$uuid/checksum again, but that should be fine.

This is based on v6.16-rc1, and I'm planning to take these patches
through the crc-next tree. These supersede
https://lore.kernel.org/r/20250601224441.778374-2-ebiggers@xxxxxxxxxx/
and
https://lore.kernel.org/r/20250601224441.778374-3-ebiggers@xxxxxxxxxx/,
and they fix the warning in the full crypto self-tests reported at
https://lore.kernel.org/r/aExLZaoBCg55rZWJ@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/

Eric Biggers (2):
btrfs: stop parsing crc32c driver name
crypto/crc32[c]: register only "-lib" drivers

crypto/Makefile | 2 --
crypto/crc32.c | 65 +++++----------------------------------------
crypto/crc32c.c | 66 ++++------------------------------------------
crypto/testmgr.c | 2 ++
fs/btrfs/disk-io.c | 8 ++----
5 files changed, 15 insertions(+), 128 deletions(-)


base-commit: 19272b37aa4f83ca52bdf9c16d5d81bdd1354494
--
2.49.0