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Every iteration of the loop over all possible CPUs in em_check_capacity_update() causes get_cpu_device() to be called twice for the same CPU, once indirectly via em_cpu_get() and once directly. Get rid of the indirect get_cpu_device() call by moving the direct invocation of it earlier and using em_pd_get() instead of em_cpu_get() to get a pd pointer for the dev one returned by it. This also exposes the fact that dev is needed to get a pd, so the code becomes somewhat easier to follow after it. No functional impact. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Link: https://patch.msgid.link/1925950.tdWV9SEqCh@rjwysocki.net
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.