Linux kernel stable tree https://git.rulkc.org/pub/scm/linux/kernel/git/stable/linux.git/atom?h=master 2025-06-30T16:31:57+00:00 2025-06-30T16:31:57+00:00 Eric Biggers ebiggers@kernel.org 2025-06-07T20:04:43+00:00 urn:sha1:89a51591405e09a862b9ca1ccfa880986c495c3c Move all CRC files in lib/ into a subdirectory lib/crc/ to keep them from cluttering up the main lib/ directory. Reviewed-by: "Martin K. Petersen" <martin.petersen@oracle.com> Acked-by: Ingo Molnar <mingo@kernel.org> Acked-by: "Jason A. Donenfeld" <Jason@zx2c4.com> Link: https://lore.kernel.org/r/20250607200454.73587-2-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org> 2025-06-30T16:31:57+00:00 Eric Biggers ebiggers@kernel.org 2025-06-07T03:22:28+00:00 urn:sha1:f2703a104e89077e622e2f34ac686262c5180d71 Remove crc32_le_combine() and crc32_le_shift(), since they are no longer used. Although combination is an interesting thing that can be done with CRCs, it turned out that none of the users of it in the kernel were even close to being worthwhile. All were much better off simply chaining the CRCs or processing zeroes. Let's remove the CRC32 combination code for now. It can come back (potentially optimized with carryless multiplication instructions) if there is ever a case where it would actually be worthwhile. Link: https://lore.kernel.org/r/20250607032228.27868-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org> 2025-05-21T22:40:17+00:00 Eric Biggers ebiggers@google.com 2025-05-19T17:50:09+00:00 urn:sha1:b82f72292ab4c65250bd734281464a6ab1ff4133 crc32c_combine() and crc32c_shift() are no longer used (except by the KUnit test that tests them), and their current implementation is very slow. Remove them. Signed-off-by: Eric Biggers <ebiggers@google.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Link: https://patch.msgid.link/20250519175012.36581-8-ebiggers@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> 2025-03-26T01:33:04+00:00 Linus Torvalds torvalds@linux-foundation.org 2025-03-26T01:33:04+00:00 urn:sha1:ee6740fd34eb53c5c76be01201c15310f461b69f Pull CRC updates from Eric Biggers: "Another set of improvements to the kernel's CRC (cyclic redundancy check) code: - Rework the CRC64 library functions to be directly optimized, like what I did last cycle for the CRC32 and CRC-T10DIF library functions - Rewrite the x86 PCLMULQDQ-optimized CRC code, and add VPCLMULQDQ support and acceleration for crc64_be and crc64_nvme - Rewrite the riscv Zbc-optimized CRC code, and add acceleration for crc_t10dif, crc64_be, and crc64_nvme - Remove crc_t10dif and crc64_rocksoft from the crypto API, since they are no longer needed there - Rename crc64_rocksoft to crc64_nvme, as the old name was incorrect - Add kunit test cases for crc64_nvme and crc7 - Eliminate redundant functions for calculating the Castagnoli CRC32, settling on just crc32c() - Remove unnecessary prompts from some of the CRC kconfig options - Further optimize the x86 crc32c code" * tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: (36 commits) x86/crc: drop the avx10_256 functions and rename avx10_512 to avx512 lib/crc: remove unnecessary prompt for CONFIG_CRC64 lib/crc: remove unnecessary prompt for CONFIG_LIBCRC32C lib/crc: remove unnecessary prompt for CONFIG_CRC8 lib/crc: remove unnecessary prompt for CONFIG_CRC7 lib/crc: remove unnecessary prompt for CONFIG_CRC4 lib/crc7: unexport crc7_be_syndrome_table lib/crc_kunit.c: update comment in crc_benchmark() lib/crc_kunit.c: add test and benchmark for crc7_be() x86/crc32: optimize tail handling for crc32c short inputs riscv/crc64: add Zbc optimized CRC64 functions riscv/crc-t10dif: add Zbc optimized CRC-T10DIF function riscv/crc32: reimplement the CRC32 functions using new template riscv/crc: add "template" for Zbc optimized CRC functions x86/crc: add ANNOTATE_NOENDBR to suppress objtool warnings x86/crc32: improve crc32c_arch() code generation with clang x86/crc64: implement crc64_be and crc64_nvme using new template x86/crc-t10dif: implement crc_t10dif using new template x86/crc32: implement crc32_le using new template x86/crc: add "template" for [V]PCLMULQDQ based CRC functions ... 2025-02-11T02:25:39+00:00 Kees Cook kees@kernel.org 2024-12-02T07:55:40+00:00 urn:sha1:db6fe4d61ece24193eb4d94a82d967501d53358c Following from the recent KUnit file naming discussion[1], move all KUnit tests in lib/ into lib/tests/. Link: https://lore.kernel.org/lkml/20240720165441.it.320-kees@kernel.org/ [1] Acked-by: Steven Rostedt (Google) <rostedt@goodmis.org> Acked-by: Jakub Kicinski <kuba@kernel.org> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Reviewed-by: David Gow <davidgow@google.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Rae Moar <rmoar@google.com> Link: https://lore.kernel.org/r/20241202075545.3648096-4-davidgow@google.com Signed-off-by: Kees Cook <kees@kernel.org>