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9924003807
As far as I can tell, "crc32c-sparc64" is the only "shash" algorithm in
the kernel that sets a nonzero alignmask and actually relies on it to
get the crypto API to align the inputs and outputs. This capability is
not really useful, though. To unblock removing the support for
alignmask from shash_alg, this patch updates crc32c-sparc64 to no longer
use the alignmask. This means doing 8-byte alignment of the data when
doing an update, using get_unaligned_le32() when setting a non-default
initial CRC, and using put_unaligned_le32() to output the final CRC.
Partially tested with:
export ARCH=sparc64 CROSS_COMPILE=sparc64-linux-gnu-
make sparc64_defconfig
echo CONFIG_CRYPTO_CRC32C_SPARC64=y >> .config
echo '# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set' >> .config
echo CONFIG_DEBUG_KERNEL=y >> .config
echo CONFIG_CRYPTO_MANAGER_EXTRA_TESTS=y >> .config
make olddefconfig
make -j$(getconf _NPROCESSORS_ONLN)
qemu-system-sparc64 -kernel arch/sparc/boot/image -nographic
However, qemu doesn't actually support the sparc CRC32C instructions, so
for the test I temporarily replaced crc32c_sparc64() with __crc32c_le()
and made sparc64_has_crc32c_opcode() always return true. So essentially
I tested the glue code, not the actual SPARC part which is unchanged.
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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|---|---|---|
| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.