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The prototype of bus_find_device() will be unified with that of class_find_device() subsequently, but for this purpose the callback functions passed to it need to take (const void *) as the second argument. Consequently, they cannot modify the memory pointed to by that argument which currently is not the case for acpi_dev_match_cb(). However, acpi_dev_match_cb() really need not modify the "match" object passed to it, because acpi_dev_get_first_match_dev() which uses it via bus_find_device() can easily convert the result of bus_find_device() into the pointer to return. For this reason, update acpi_dev_match_cb() to avoid the redundant memory updates. Cc: Len Brown <lenb@kernel.org> Cc: linux-acpi@vger.kernel.org Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Reviewed-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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 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.