5716e58aec
The 1394 OHCI driver allocates several non-coherent DMA buffers for AR request and response contexts. The buffers are mapped to kernel virtual address (VMA) so that the first page locates after the last page. Even when large payload of packet is handled crossing the boundary of buffers, the driver operates continuously on VMA. No kernel API is provided for this kind of mapping, while it is possible to release the buffer when PCI device is going to be released. This commit moves the call of release helper function to the callback function of release resources. Link: https://lore.kernel.org/r/20230604054451.161076-10-o-takashi@sakamocchi.jp Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
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.