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d9539fb7c2
Even if an IOMMU might be present for some PCI segment in the system, that doesn't necessarily mean it provides translation for the device(s) we care about. Replace iommu_present() with a more appropriate check at probe time, and garbage-collect the resulting empty init function. Link: https://lore.kernel.org/r/f707b4248e1d33b6d2c7f1d7c94febb802cf9890.1649161199.git.robin.murphy@arm.com Signed-off-by: Robin Murphy <robin.murphy@arm.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 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.