dc7c51638f
In future commits, some new structure will be added to express new type of event. They are exposed to user space as the part of UAPI. It is likely to get trouble in ioctl compatibility layer for 32 bit binaries in 64 bit host machine since the layout of structure could differ depending on System V ABI for these architectures. Actually the subsystem already got such trouble at v2.6.27. It is preferable to decide the layout of structure carefully so that the layer is free from such trouble. This commit utilizes KUnit framework to check the layout of structure for the purpose. A test is added for the existent issue. Cc: kunit-dev@googlegroups.com Link: https://lore.kernel.org/r/20230529113406.986289-2-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.