ec61f820a2
With 64k base pages, the first 128k iova length test requires less than a byte for a bitmap, exposing a bug in the tests that assume that bitmaps are at least a byte. Rather than dealing with bytes, have _test_mock_dirty_bitmaps() pass the number of bits. The caller functions are adjusted to also use bits as well, and converting to bytes when clearing, allocating and freeing the bitmap. Link: https://lore.kernel.org/r/20240627110105.62325-2-joao.m.martins@oracle.com Reported-by: Matt Ochs <mochs@nvidia.com> Fixes: a9af47e382a4 ("iommufd/selftest: Test IOMMU_HWPT_GET_DIRTY_BITMAP") Signed-off-by: Joao Martins <joao.m.martins@oracle.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Tested-by: Matt Ochs <mochs@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.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.