mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-05-05 15:49:42 -04:00
e47e6d2aaa
In caam_jr_enqueue, under heavy DDR load, smp_wmb() or dma_wmb() fail to make the input ring be updated before the CAAM starts reading it. So, CAAM will process, again, an old descriptor address and will put it in the output ring. This will make caam_jr_dequeue() to fail, since this old descriptor is not in the software ring. To fix this, use wmb() which works on the full system instead of inner/outer shareable domains. Signed-off-by: Iuliana Prodan <iuliana.prodan@nxp.com> Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com> Reviewed-by: Gaurav Jain <gaurav.jain@nxp.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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.