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Instead of explicitly calling cache_ap_init() in identify_secondary_cpu() use a CPU hotplug callback instead. By registering the callback only after having started the non-boot CPUs and initializing cache_aps_delayed_init with "true", calling set_cache_aps_delayed_init() at boot time can be dropped. It should be noted that this change results in cache_ap_init() being called a little bit later when hotplugging CPUs. By using a new hotplug slot right at the start of the low level bringup this is not problematic, as no operations requiring a specific caching mode are performed that early in CPU initialization. Suggested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Juergen Gross <jgross@suse.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lore.kernel.org/r/20221102074713.21493-15-jgross@suse.com Signed-off-by: Borislav Petkov <bp@suse.de>
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.