cpufreq: rewrite cpufreq_driver->flags using shift operator (6461f018) · Commits · 戴 / test

Currently cpufreq_driver's flags are defined directly using 0x1, 0x2, 0x4, 0x8, etc.. As the list grows it becomes less readable.. Use bitwise shift operator << to generate these numbers for respective positions. Signed-off-by:

Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by:

Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by:

Rafael J. Wysocki <rafael.j.wysocki@intel.com>

include/linux/cpufreq.h

+8 −7

Original line number	Diff line number	Diff line
		@@ -211,13 +211,14 @@ struct cpufreq_driver {
		};

		/* flags */
		#define CPUFREQ_STICKY 0x01 /* the driver isn't removed even if
		* all ->init() calls failed */
		#define CPUFREQ_CONST_LOOPS 0x02 /* loops_per_jiffy or other kernel
		* "constants" aren't affected by
		* frequency transitions */
		#define CPUFREQ_PM_NO_WARN 0x04 /* don't warn on suspend/resume speed
		* mismatches */
		#define CPUFREQ_STICKY (1 << 0) /* driver isn't removed even if
		all ->init() calls failed */
		#define CPUFREQ_CONST_LOOPS (1 << 1) /* loops_per_jiffy or other
		kernel "constants" aren't
		affected by frequency
		transitions */
		#define CPUFREQ_PM_NO_WARN (1 << 2) /* don't warn on suspend/resume
		speed mismatches */

		int cpufreq_register_driver(struct cpufreq_driver *driver_data);
		int cpufreq_unregister_driver(struct cpufreq_driver *driver_data);

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