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When a switch endpoint is configured without NTB, the mmio_ntb registers will read all zeros. However, in corner case configurations where the partition ID is not zero and NTB is not enabled, the code will have the wrong partition ID and this causes the driver to use the wrong set of drivers. To fix this we simply take the partition ID from the system info region. Reported-by: Dingbao Chen <dingbao.chen@microsemi.com> Signed-off-by: Logan Gunthorpe <logang@deltatee.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
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.