Peter Zijlstra d2d7ee96cc cpuidle, intel_idle: Fix CPUIDLE_FLAG_IBRS
[ Upstream commit 9b461a6faa ]

objtool to the rescue:

  vmlinux.o: warning: objtool: intel_idle_ibrs+0x17: call to spec_ctrl_current() leaves .noinstr.text section
  vmlinux.o: warning: objtool: intel_idle_ibrs+0x27: call to wrmsrl.constprop.0() leaves .noinstr.text section

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Tony Lindgren <tony@atomide.com>
Tested-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Frederic Weisbecker <frederic@kernel.org>
Link: https://lore.kernel.org/r/20230112195540.556912863@infradead.org
Stable-dep-of: c157d351460b ("intel_idle: Handle older CPUs, which stop the TSC in deeper C states, correctly")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-03-13 12:53:11 +01:00
2024-12-14 19:53:51 +01:00
2022-09-28 09:02:20 +02:00
2025-03-07 16:56:52 +01:00

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.
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