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The "dra7xx-pcie-main" hard IRQ handler is just printing the IRQ status and calling the dw_pcie_ep_linkup() API if LINK_UP status is set. But the execution of dw_pcie_ep_linkup() depends on the EPF driver and may take more time depending on the EPF implementation. In general, hard IRQ handlers are supposed to return quickly and not block for so long. Moreover, there is no real need of the current IRQ handler to be a hard IRQ handler. So switch to the threaded IRQ handler for the "dra7xx-pcie-main" IRQ. Link: https://lore.kernel.org/linux-pci/20230124071158.5503-2-manivannan.sadhasivam@linaro.org Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org> Acked-by: Kishon Vijay Abraham I <kishon@ti.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.