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99b3c58f7b
The test for INTx masking via PCI_COMMAND_INTX_DISABLE performed in pci_intx_mask_supported() should be done before the device can be used. This is to avoid writing PCI_COMMAND while the driver owns the device, in case that has any effect on MSI/MSI-X interrupts. Move the content of pci_intx_mask_supported() to pci_intx_mask_broken() and call it from pci_setup_device(). The test result can be queried at any time later using the same pci_intx_mask_supported() interface as before (though with changed implementation), so callers (uio, vfio) should be unaffected. Signed-off-by: Piotr Gregor <piotrgregor@rsyncme.org> [bhelgaas: changelog, remove quirk check, remove locking, move dev->broken_intx_masking assignment to caller] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> |
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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.