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f2489456fe
- Initialize SKCIPHER_WALK_SLEEP in a consistent way, and check for atomic=true at the same time as CRYPTO_TFM_REQ_MAY_SLEEP. Technically atomic=true only needs to apply after the first step, but it is very rarely used. We should optimize for the common case. So, check 'atomic' alongside CRYPTO_TFM_REQ_MAY_SLEEP. This is more efficient. - Initialize flags other than SKCIPHER_WALK_SLEEP to 0 rather than preserving them. No caller actually initializes the flags, which makes it impossible to use their original values for anything. Indeed, that does not happen and all meaningful flags get overridden anyway. It may have been thought that just clearing one flag would be faster than clearing all flags, but that's not the case as the former is a read-write operation whereas the latter is just a write. - Move the explicit clearing of SKCIPHER_WALK_SLOW, SKCIPHER_WALK_COPY, and SKCIPHER_WALK_DIFF into skcipher_walk_done(), since it is now only needed on non-first steps. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> |
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| .clang-format | ||
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| .get_maintainer.ignore | ||
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| 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 reStructuredText 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.