Will Deacon
e7d6fff6b3
iommu: Use bitmap to calculate page size in iommu_pgsize()
Avoid the potential for shifting values by amounts greater than the width of their type by using a bitmap to compute page size in iommu_pgsize(). Signed-off-by: Will Deacon <will@kernel.org> Signed-off-by: Isaac J. Manjarres <isaacm@codeaurora.org> Signed-off-by: Georgi Djakov <quic_c_gdjako@quicinc.com> Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com> Link: https://lore.kernel.org/r/1623850736-389584-6-git-send-email-quic_c_gdjako@quicinc.com Signed-off-by: Joerg Roedel <jroedel@suse.de>
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.
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