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(parent: 7c53f6b) | patch
cpufreq: intel_pstate: Always read hwp_cap_cached with READ_ONCE()
authorRafael J. Wysocki <rafael.j.wysocki@intel.com>
Thu, 7 Jan 2021 18:42:15 +0000 (19:42 +0100)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Tue, 12 Jan 2021 18:34:04 +0000 (19:34 +0100)
commit9dd04ec6bc6fa7b310e5595f2ad9bef13eacd3a0
tree70ca4c03580209e00d15dc466460b72fdf50a3f9tree | snapshot
parent7c53f6b671f4aba70ff15e1b05148b10d58c2837commit | diff
cpufreq: intel_pstate: Always read hwp_cap_cached with READ_ONCE()

Because intel_pstate_get_hwp_max() which updates hwp_cap_cached
may run in parallel with the readers of it, annotate all of the
read accesses to it with READ_ONCE().

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Chen Yu <yu.c.chen@intel.com>
drivers/cpufreq/intel_pstate.c diff | blob | history
ep93xx device tree rework repo: git://git.maquefel.me/linux.git