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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-10-26 19:10:39 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-10-26 19:10:39 +0200 |
| commit | 567825502730b6bc108f926bdb1cf2de7ae436ca (patch) | |
| tree | 57f9e00b1687ea046c29ad27845166a58ff18914 /include | |
| parent | 3b5a9a8e654c3695e7b499b0784341f299adef48 (diff) | |
| parent | 0cc2b4e5a020fc7f4d1795741c116c983e9467d7 (diff) | |
| download | linux-stable-567825502730b6bc108f926bdb1cf2de7ae436ca.tar.gz linux-stable-567825502730b6bc108f926bdb1cf2de7ae436ca.tar.bz2 linux-stable-567825502730b6bc108f926bdb1cf2de7ae436ca.zip | |
Merge tag 'pm-4.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fix from Rafael Wysocki:
"This fixes a device power management quality of service (PM QoS)
framework implementation issue causing 'no restriction' requests for
device resume latency, including 'no restriction' set by user space,
to effectively override requests with specific device resume latency
requirements.
It is late in the cycle, but the bug in question is in the 'user space
can trigger unexpected behavior' category and the fix is
stable-candidate, so here it goes"
* tag 'pm-4.14-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM / QoS: Fix device resume latency PM QoS
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/pm_qos.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h index 032b55909145..6737a8c9e8c6 100644 --- a/include/linux/pm_qos.h +++ b/include/linux/pm_qos.h @@ -27,16 +27,17 @@ enum pm_qos_flags_status { PM_QOS_FLAGS_ALL, }; -#define PM_QOS_DEFAULT_VALUE -1 +#define PM_QOS_DEFAULT_VALUE (-1) +#define PM_QOS_LATENCY_ANY S32_MAX #define PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE (2000 * USEC_PER_SEC) #define PM_QOS_NETWORK_LAT_DEFAULT_VALUE (2000 * USEC_PER_SEC) #define PM_QOS_NETWORK_THROUGHPUT_DEFAULT_VALUE 0 #define PM_QOS_MEMORY_BANDWIDTH_DEFAULT_VALUE 0 #define PM_QOS_RESUME_LATENCY_DEFAULT_VALUE 0 +#define PM_QOS_RESUME_LATENCY_NO_CONSTRAINT PM_QOS_LATENCY_ANY #define PM_QOS_LATENCY_TOLERANCE_DEFAULT_VALUE 0 #define PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT (-1) -#define PM_QOS_LATENCY_ANY ((s32)(~(__u32)0 >> 1)) #define PM_QOS_FLAG_NO_POWER_OFF (1 << 0) #define PM_QOS_FLAG_REMOTE_WAKEUP (1 << 1) |