cpufreq: Simplify core code related to boost support

Notice that the boost_supported field in struct cpufreq_driver is
redundant, because the driver's ->set_boost callback may be left
unset if "boost" is not supported.  Moreover, the only driver
populating the ->set_boost callback is acpi_cpufreq, so make it
avoid populating that callback if "boost" is not supported, rework
the core to check ->set_boost instead of boost_supported to
verify "boost" support and drop boost_supported which isn't
used any more.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>

1 files changed, 0 insertions, 1 deletions

diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index f859b728d98e..88a4215125bc 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -278,7 +278,6 @@ struct cpufreq_driver {
         struct freq_attr **attr;
 
         /* platform specific boost support code */
-        bool            boost_supported;
         bool            boost_enabled;
         int             (*set_boost)(int state);
 };