Eric Biggers
1c5bce29d0
[ Upstream commit57ce8a4e16] Since sha256_transform_rorx() uses ymm registers, execute vzeroupper before returning from it. This is necessary to avoid reducing the performance of SSE code. Fixes:d34a460092("crypto: sha256 - Optimized sha256 x86_64 routine using AVX2's RORX instructions") Signed-off-by: Eric Biggers <ebiggers@google.com> Acked-by: Tim Chen <tim.c.chen@linux.intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.