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PM / EM: Declare EM data types unconditionally

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The structs representing capacity states and performance domains of an
Energy Model are currently only defined for CONFIG_ENERGY_MODEL=y. That
makes it hard for code outside PM_EM to manipulate those structures
without a lot of ifdefery or stubbed accessors.

So, move the declaration of the two structs outside of the
CONFIG_ENERGY_MODEL ifdef. The client code (e.g. EAS or thermal) always
checks the return of em_cpu_get() before using it, so the exising code
is still safe to use as-is.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Quentin Perret <qperret@google.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20191030151451.7961-3-qperret@google.com
This commit is contained in:
Quentin Perret 2019-10-30 15:14:49 +00:00 committed by Daniel Lezcano
parent 48da6f8005
commit 27a47e422e
1 changed files with 1 additions and 2 deletions
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3
include/linux/energy_model.h
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@ -9,7 +9,6 @@
#include <linux/sched/topology.h>
#include <linux/types.h>
#ifdef CONFIG_ENERGY_MODEL
/**
* em_cap_state - Capacity state of a performance domain
* @frequency: The CPU frequency in KHz, for consistency with CPUFreq
@ -40,6 +39,7 @@ struct em_perf_domain {
unsigned long cpus[0];
};
#ifdef CONFIG_ENERGY_MODEL
#define EM_CPU_MAX_POWER 0xFFFF
struct em_data_callback {
@ -160,7 +160,6 @@ static inline int em_pd_nr_cap_states(struct em_perf_domain *pd)
}
#else
struct em_perf_domain {};
struct em_data_callback {};
#define EM_DATA_CB(_active_power_cb) { }