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Test referenced kptr acquired through struct_ops argument tagged with "__ref". The success case checks whether 1) a reference to the correct type is acquired, and 2) the referenced kptr argument can be accessed in multiple paths as long as it hasn't been released. In the fail cases, we first confirm that a referenced kptr acquried through a struct_ops argument is not allowed to be leaked. Then, we make sure this new referenced kptr acquiring mechanism does not accidentally allow referenced kptrs to flow into global subprograms through their arguments. Signed-off-by: Amery Hung <amery.hung@bytedance.com> Acked-by: Eduard Zingerman <eddyz87@gmail.com> Acked-by: Martin KaFai Lau <martin.lau@kernel.org> Link: https://lore.kernel.org/r/20250217190640.1748177-4-ameryhung@gmail.com Signed-off-by: Alexei Starovoitov <ast@kernel.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.