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0ce4a85f4f
This reverts commit557529494d. Commit557529494d("iommu/vt-d: Avoid duplicated pci dma alias consideration") aimed to address a NULL pointer deference issue happened when a thunderbolt device driver returned unexpectedly. Unfortunately, this change breaks a previous pci quirk added by commitcc346a4714("PCI: Add function 1 DMA alias quirk for Marvell devices"), as the result, devices like Marvell 88SE9128 SATA controller doesn't work anymore. We will continue to try to find the real culprit mentioned in557529494d, but for now we should revert it to fix current breakage. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204627 Cc: Stijn Tintel <stijn@linux-ipv6.be> Cc: Petr Vandrovec <petr@vandrovec.name> Reported-by: Stijn Tintel <stijn@linux-ipv6.be> Reported-by: Petr Vandrovec <petr@vandrovec.name> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.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.