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[ Upstream commit c8f5caec3df84a02b937d6d9cda1f7ffa8dc443f ] The cpuidle drivers' ->enter() methods are supposed to be IRQ invariant:5e26aa9339("cpuidle/poll: Ensure IRQs stay disabled after cpuidle_state::enter() calls")bb7b112585("cpuidle: Move IRQ state validation") Do that in the haltpoll driver too. Fixes:5e26aa9339("cpuidle/poll: Ensure IRQs stay disabled after cpuidle_state::enter() calls") Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218245 Reported-by: <forza@tnonline.net> Tested-by: <forza@tnonline.net> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Signed-off-by: Sasha Levin <sashal@kernel.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 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.