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Kishon Vijay Abraham I b330104fa7 PCI: endpoint: Use EPC's device in dma_alloc_coherent()/dma_free_coherent() 
After commit 7232888366 ("of: restrict DMA configuration"),
of_dma_configure() doesn't configure the coherent_dma_mask/dma_mask
of endpoint function device (since it doesn't have a DT node associated
with and hence no dma-ranges property), resulting in
dma_alloc_coherent() (used in pci_epf_alloc_space()) to fail.

Fix it by making dma_alloc_coherent() use EPC's device for allocating
memory address.

Link: http://lkml.kernel.org/r/64d63468-d28f-8fcd-a6f3-cf2a6401c8cb@ti.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
[lorenzo.pieralisi@arm.com: tweaked commit log]
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Christoph Hellwig <hch@lst.de>
Tested-by: Cyrille Pitchen <cyrille.pitchen@free-electrons.com>
Tested-by: Niklas Cassel <niklas.cassel@axis.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
History 2018-01-11 10:06:34 +00:00
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README 

Linux kernel
============

This file was moved to Documentation/admin-guide/README.rst

Please notice that there are several guides for kernel developers and users.
These guides can be rendered in a number of formats, like HTML and PDF.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
See Documentation/00-INDEX for a list of what is contained in each file.

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.