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With device feature provisioning, there's a chance for misconfiguration that the vdpa feature attribute supplied in 'vdpa dev add' command doesn't get selected on the device_features to be provisioned. For instance, when a @mac attribute is specified, the corresponding feature bit _F_MAC in device_features should be set for consistency. If there's conflict on provisioned features against the attribute, it should be treated as an error to fail the ambiguous command. Noted the opposite is not necessarily true, for e.g. it's okay to have _F_MAC set in device_features without providing a corresponding @mac attribute, in which case the vdpa vendor driver could load certain default value for attribute that is not explicitly specified. Generalize this check in vdpa core so that there's no duplicate code in each vendor driver. Signed-off-by: Si-Wei Liu <si-wei.liu@oracle.com> Reviewed-by: Eli Cohen <elic@nvidia.com> Message-Id: <1675725124-7375-4-git-send-email-si-wei.liu@oracle.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.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 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.