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Mathias Nyman
86dcf43be8
The trb_in_td() checking is quite complex, especially when checking for TRBs in ranges that can span several segments. Simplify the search by creating a position index for each TRB on the ring, and just compare the position indexes. Add a more generic dma_in_range() helper that checks if a trb dma address is in the range between a start and end trb and call it from trb_in_td() Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://patch.msgid.link/20251119142417.2820519-4-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 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.