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Merge branches 'pm-sleep' and 'pm-qos'

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Merge a PM QoS fix and a hibernation fix for 6.5-rc2.

 - Unbreak the /sys/power/resume interface after recent changes (Azat
   Khuzhin).

 - Allow PM_QOS_DEFAULT_VALUE to be used with frequency QoS (Chungkai
   Yang).

* pm-sleep:
  PM: hibernate: Fix writing maj:min to /sys/power/resume

* pm-qos:
  PM: QoS: Restore support for default value on frequency QoS
This commit is contained in:
Rafael J. Wysocki 2023-07-14 19:13:21 +02:00
commit d121758da6
2 changed files with 8 additions and 2 deletions
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1
kernel/power/hibernate.c
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@ -1179,6 +1179,7 @@ static ssize_t resume_store(struct kobject *kobj, struct kobj_attribute *attr,
unsigned maj, min, offset; unsigned maj, min, offset;
char *p, dummy; char *p, dummy;
error = 0;
if (sscanf(name, "%u:%u%c", &maj, &min, &dummy) == 2 || if (sscanf(name, "%u:%u%c", &maj, &min, &dummy) == 2 ||
sscanf(name, "%u:%u:%u:%c", &maj, &min, &offset, sscanf(name, "%u:%u:%u:%c", &maj, &min, &offset,
&dummy) == 3) { &dummy) == 3) {

9
kernel/power/qos.c
View File

@ -426,6 +426,11 @@ late_initcall(cpu_latency_qos_init);
/* Definitions related to the frequency QoS below. */ /* Definitions related to the frequency QoS below. */
static inline bool freq_qos_value_invalid(s32 value)
{
return value < 0 && value != PM_QOS_DEFAULT_VALUE;
}
/** /**
* freq_constraints_init - Initialize frequency QoS constraints. * freq_constraints_init - Initialize frequency QoS constraints.
* @qos: Frequency QoS constraints to initialize. * @qos: Frequency QoS constraints to initialize.
@ -531,7 +536,7 @@ int freq_qos_add_request(struct freq_constraints *qos,
{ {
int ret; int ret;
if (IS_ERR_OR_NULL(qos) || !req || value < 0) if (IS_ERR_OR_NULL(qos) || !req || freq_qos_value_invalid(value))
return -EINVAL; return -EINVAL;
if (WARN(freq_qos_request_active(req), if (WARN(freq_qos_request_active(req),
@ -563,7 +568,7 @@ EXPORT_SYMBOL_GPL(freq_qos_add_request);
*/ */
int freq_qos_update_request(struct freq_qos_request *req, s32 new_value) int freq_qos_update_request(struct freq_qos_request *req, s32 new_value)
{ {
if (!req || new_value < 0) if (!req || freq_qos_value_invalid(new_value))
return -EINVAL; return -EINVAL;
if (WARN(!freq_qos_request_active(req), if (WARN(!freq_qos_request_active(req),