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Alex Elder says: ==================== net: ipa: simplify IPA interrupt handling One of the IPA's two IRQs fires when data on a suspended channel is available (to request that the channel--or system--be resumed to recieve the pending data). This interrupt also handles a few conditions signaled by the embedded microcontroller. For this "IPA interrupt", the current code requires a handler to be dynamically registered for each interrupt condition. Any condition that has no registered handler is quietly ignored. This design is derived from the downstream IPA driver implementation. There isn't any need for this complexity. Even in the downstream code, only four of the available 30 or so IPA interrupt conditions are ever handled. So these handlers can pretty easily just be called directly in the main IRQ handler function. This series simplifies the interrupt handling code by having the small number of IPA interrupt handlers be called directly, rather than having them be registered dynamically. Version 2 just adds a missing forward-reference, as suggested by Caleb. ==================== Link: https://lore.kernel.org/r/20230104175233.2862874-1-elder@linaro.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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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
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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.