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[ Upstream commitd419052bc6] Commit43f5c77bcb("PCI: aardvark: Fix reporting CRS value") started using CRSSVE flag for handling CRS responses. PCI_EXP_RTCTL_CRSSVE flag is stored only in emulated config space buffer and there is handler for PCI_EXP_RTCTL register. So every read operation from config space automatically clears CRSSVE flag as it is not defined in PCI_EXP_RTCTL read handler. Fix this by reading current CRSSVE bit flag from emulated space buffer and appending it to PCI_EXP_RTCTL read response. Link: https://lore.kernel.org/r/20211005180952.6812-5-kabel@kernel.org Fixes:43f5c77bcb("PCI: aardvark: Fix reporting CRS value") Signed-off-by: Pali Rohár <pali@kernel.org> Signed-off-by: Marek Behún <kabel@kernel.org> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Marek Behún <kabel@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.