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077855ba2d
commitc03101ff4fupstream. The check printing out the "WARN Wrong bounce buffer write length:" uses incorrect values when comparing bytes written from scatterlist to bounce buffer. Actual copied lengths are fine. The used seg->bounce_len will be set to equal new_buf_len a few lines later in the code, but is incorrect when doing the comparison. The patch which added this false warning was backported to 4.8+ kernels so this should be backported as far as well. Cc: <stable@vger.kernel.org> # v4.8+ Fixes:597c56e372("xhci: update bounce buffer with correct sg num") Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/1570190373-30684-2-git-send-email-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.
See Documentation/00-INDEX for a list of what is contained in each file.
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.