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Add support for passing multiple device BDFs to a test via the command line. This is a prerequisite for multi-device tests. Single-device tests can continue using vfio_selftests_get_bdf(), which will continue to return argv[argc - 1] (if it is a BDF string), or the environment variable $VFIO_SELFTESTS_BDF otherwise. For multi-device tests, a new helper called vfio_selftests_get_bdfs() is introduced which will return an array of all BDFs found at the end of argv[], as well as the number of BDFs found (passed back to the caller via argument). The array of BDFs returned does not need to be freed by the caller. The environment variable VFIO_SELFTESTS_BDF continues to support only a single BDF for the time being. Reviewed-by: Alex Mastro <amastro@fb.com> Tested-by: Alex Mastro <amastro@fb.com> Reviewed-by: Raghavendra Rao Ananta <rananta@google.com> Signed-off-by: David Matlack <dmatlack@google.com> Link: https://lore.kernel.org/r/20251126231733.3302983-4-dmatlack@google.com Signed-off-by: Alex Williamson <alex@shazbot.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 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.