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60d042a787
The irq handler iterates through the interrupt bits one by one in a while() loop, clearing one bit at a time. This is unnecessary and inefficient, as the 'Interrupt Status Register' can be cleared with a single write operation. Also the irq handler checks for some interrupts that are masked out in the 'Interrupt Enable Register', so they are never triggered. Simplify the irq handler by removing the checks for interrupts that are masked out and clear the whole 'Interrupt Status Register' in one go. The macros that are no longer relevant are also removed. Signed-off-by: Ovidiu Panait <ovidiu.panait.oss@gmail.com> Link: https://lore.kernel.org/r/20250919195400.3180039-2-ovidiu.panait.oss@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 reStructuredText 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.