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3cf4d9cae4
[ Upstream commit 1bafd82d9a40cf09c6c40f1c09cc35b7050b1a9f ]
The user may set req->src even if req->nbytes == 0. If there
is no data to hash from req->src, do not generate an empty TDMA
descriptor.
Fixes: db509a4533 ("crypto: marvell/cesa - add TDMA support")
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.