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f26a38e61c
The 1394 OHCI driver configures the hardware to transfer the data quadlets
of packet via DMA after converting it to little endian, therefore the data
is typed as __le32. Nevertheless some actual hardware ignores the
configuration. In the case, the data in DMA buffer is aligned to big endian
(__be32).
For the case in big-endian machine, the driver includes the following
interpretation from __le32 to u32 (host-endian = __be32):
* (__force __u32)(v)
In include/linux/byteorder/generic.h, be32_to_cpu() is available. It is
expanded to the following expression in
'include/uapi/linux/byteorder/big_endian.h':
* (__force __u32)(__be32)(x)
This commit replace the ad-hoc endian interpretation with the above.
Link: https://lore.kernel.org/r/20240702222034.1378764-2-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
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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.