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8a67d4b49bNew Intel VSEC features will have dependencies on other features, requiring
certain supplier drivers to be probed before their consumers. To enforce
this dependency ordering, introduce device links using device_link_add(),
ensuring that suppliers are fully registered before consumers are probed.
- Add device link tracking by storing supplier devices and tracking their
state.
- Implement intel_vsec_link_devices() to establish links between suppliers
and consumers based on feature dependencies.
- Add get_consumer_dependencies() to retrieve supplier-consumer
relationships.
- Modify feature registration logic:
* Consumers now check that all required suppliers are registered before
being initialized.
* suppliers_ready() verifies that all required supplier devices are
available.
- Prevent potential null consumer name issue in sysfs:
- Use dev_set_name() when creating auxiliary devices to ensure a
unique, non-null consumer name.
- Update intel_vsec_pci_probe() to loop up to the number of possible
features or when all devices are registered, whichever comes first.
- Introduce VSEC_CAP_UNUSED to prevent sub-features (registered via
exported APIs) from being mistakenly linked.
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Link: https://lore.kernel.org/r/20250703022832.1302928-5-david.e.box@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.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.