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After processing an interrupt event and the interrupt function is enabled by writing the QM_DOORBELL_CMD_AEQ register, the hardware may generate new interrupt events due to processing other user's task when the subsequent interrupt events have not been processed. The new interrupt event will disrupt the current normal processing flow and cause other problems. Therefore, the operation of writing the QM_DOORBELL_CMD_AEQ doorbell register needs to be placed after all interrupt events processing are completed. Signed-off-by: Weili Qian <qianweili@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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.