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ks_pcie_msi_irq_handler() uses 'virq' to get the IRQ number offset. This offset is used to get the correct MSI_IRQ_STATUS register corresponding to the IRQ line that raised the interrupt. There is no guarantee that 'virq' assigned for consecutive hardware IRQ will be contiguous and this might get us an incorrect IRQ number offset. Fix it here by using 'hwirq' to get the IRQ number offset. Since we don't store the 'virq' numbers of all the IRQ numbers, stop checking if irq count is greater than MAX_MSI_HOST_IRQS and remove MAX_MSI_HOST_IRQS. Link: https://lkml.kernel.org/r/bb081d21-7c03-0357-4294-7e92d95d838c@arm.com Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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.