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2edc6a75f2
For intel_wakeref_t, opaque is reasonable, but disguising the underlying struct ref_tracker * as an unsigned long is not so great. Update the typedef to remove one level of disguise. Although the kernel coding style strongly discourages pointer typedefs, it's a better alternative, and an incremental improvement on the status quo. It provides much better type safety than an unsigned long could, and prevents passing magic -1 instead of INTEL_WAKEREF_DEF. Moreover, it provides a gradual path for replacing intel_wakeref_t with struct ref_tracker * if desired. As an extra safety measure, check for error pointers in intel_ref_tracker_free() before passing them on to ref_tracker_free(), to catch any mistakes with mock gt special wakeref value. Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/cca2b0631f816ad90461aa1bf4fe3f80c0e13464.1726680898.git.jani.nikula@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com> |
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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.