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cpufreq: CPPC: Do not return a value from populate_efficiency_class()

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The return value of populate_efficiency_class() is never needed and the
result of it doesn't affect the initialization of cppc_cpufreq.

It makes more sense to change it into a void function.

Signed-off-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Link: https://patch.msgid.link/20250526113057.3086513-3-zhenglifeng1@huawei.com
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Lifeng Zheng 2025-05-26 19:30:56 +08:00 committed by Rafael J. Wysocki
parent d80a756240
commit 3d5978ea6c
1 changed files with 3 additions and 6 deletions
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9
drivers/cpufreq/cppc_cpufreq.c
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@ -480,7 +480,7 @@ static int cppc_get_cpu_cost(struct device *cpu_dev, unsigned long KHz,
return 0;
}
static int populate_efficiency_class(void)
static void populate_efficiency_class(void)
{
struct acpi_madt_generic_interrupt *gicc;
DECLARE_BITMAP(used_classes, 256) = {};
@ -495,7 +495,7 @@ static int populate_efficiency_class(void)
if (bitmap_weight(used_classes, 256) <= 1) {
pr_debug("Efficiency classes are all equal (=%d). "
"No EM registered", class);
return -EINVAL;
return;
}
/*
@ -512,8 +512,6 @@ static int populate_efficiency_class(void)
index++;
}
cppc_cpufreq_driver.register_em = cppc_cpufreq_register_em;
return 0;
}
static void cppc_cpufreq_register_em(struct cpufreq_policy *policy)
@ -529,9 +527,8 @@ static void cppc_cpufreq_register_em(struct cpufreq_policy *policy)
}
#else
static int populate_efficiency_class(void)
static void populate_efficiency_class(void)
{
return 0;
}
#endif