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Delay the feature device id allocation from build_info_create_dev() to binfo_create_feature_dev_data() and store the id in the feature device data before copying it to the device. This will allow reusing the same id in a subsequent commit which completely destroys and recreates the feature device when releasing and reassigning the corresponding port. Instead of manually freeing the id when no longer needed, use a device-managed resource with a custom action to automatically free the id right before the feature device data is freed. The id registry is guaranteed to be allocated when dfl_id_free_action() is invoked, since the DFL PCIe device and its device-managed resources will be destroyed before dfl_ids_destroy() is called in dfl_fpga_exit(). Signed-off-by: Peter Colberg <peter.colberg@intel.com> Reviewed-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> Reviewed-by: Basheer Ahmed Muddebihal <basheer.ahmed.muddebihal@linux.intel.com> Acked-by: Xu Yilun <yilun.xu@intel.com> Link: https://lore.kernel.org/r/20241120011035.230574-15-peter.colberg@intel.com Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
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.