diff options
| author |   Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2023-04-20 09:47:18 +0300 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2023-04-27 19:37:36 +0200 |
| commit | a78032e94bf16e9c53238cd83c82095b4a251d4b (patch) | |
| tree | e13e00543484fcee9919e245d61e36c4f9e7d2cd /drivers/idle | |
| parent | intel_idle: use pr_info() instead of printk() (diff) | |
| download | wireguard-linux-a78032e94bf16e9c53238cd83c82095b4a251d4b.tar.xz wireguard-linux-a78032e94bf16e9c53238cd83c82095b4a251d4b.zip | |
intel_idle: clean up intel_idle_init_cstates_icpu()
The intel_idle_init_cstates_icpu() function includes a loop that iterates
over every C-state. Inside the loop, the same C-state data is referenced 2
ways:
1. as cpuidle_state_table[cstate]
2. as drv->states[drv->state_count] (but it is a copy of #1, not the same
object).
Make the code be more consistent and easier to read by using only the 2nd
way. So the code structure would be as follows:
1. Use cpuidle_state_table[cstate]
2. Copy cpuidle_state_table[cstate] to drv->states[drv->state_count]
3. Use only drv->states[drv->state_count] from this point.
Note, this change introduces a checkpatch.pl warning (too long line), but it
will be addressed in the next patch.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/idle')
| -rw-r--r-- | drivers/idle/intel_idle.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 726a361da422..190410fc9ce5 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -1894,24 +1894,24 @@ static void __init intel_idle_init_cstates_icpu(struct cpuidle_driver *drv) /* Structure copy. */ drv->states[drv->state_count] = cpuidle_state_table[cstate]; - if ((cpuidle_state_table[cstate].flags & CPUIDLE_FLAG_IRQ_ENABLE) || force_irq_on) { + if ((drv->states[drv->state_count].flags & CPUIDLE_FLAG_IRQ_ENABLE) || force_irq_on) { pr_info("forced intel_idle_irq for state %d\n", cstate); drv->states[drv->state_count].enter = intel_idle_irq; } if (cpu_feature_enabled(X86_FEATURE_KERNEL_IBRS) && - cpuidle_state_table[cstate].flags & CPUIDLE_FLAG_IBRS) { - WARN_ON_ONCE(cpuidle_state_table[cstate].flags & CPUIDLE_FLAG_IRQ_ENABLE); + drv->states[drv->state_count].flags & CPUIDLE_FLAG_IBRS) { + WARN_ON_ONCE(drv->states[drv->state_count].flags & CPUIDLE_FLAG_IRQ_ENABLE); drv->states[drv->state_count].enter = intel_idle_ibrs; } - if (cpuidle_state_table[cstate].flags & CPUIDLE_FLAG_INIT_XSTATE) + if (drv->states[drv->state_count].flags & CPUIDLE_FLAG_INIT_XSTATE) drv->states[drv->state_count].enter = intel_idle_xstate; if ((disabled_states_mask & BIT(drv->state_count)) || ((icpu->use_acpi || force_use_acpi) && intel_idle_off_by_default(mwait_hint) && - !(cpuidle_state_table[cstate].flags & CPUIDLE_FLAG_ALWAYS_ENABLE))) + !(drv->states[drv->state_count].flags & CPUIDLE_FLAG_ALWAYS_ENABLE))) drv->states[drv->state_count].flags |= CPUIDLE_FLAG_OFF; if (intel_idle_state_needs_timer_stop(&drv->states[drv->state_count])) |