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| author | Jan Beulich <JBeulich@suse.com> | 2016-06-27 00:35:48 -0600 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-07-09 01:05:30 +0200 |
| commit | bef450962597ff39a7f9d53a30523aae9eb55843 (patch) | |
| tree | f5879aa2eade0e1a6fb8ecccc67a976e75b57e22 /drivers/idle/intel_idle.c | |
| parent | 3451ab3ebf92b12801878d8b5c94845afd4219f0 (diff) | |
| download | lwn-bef450962597ff39a7f9d53a30523aae9eb55843.tar.gz lwn-bef450962597ff39a7f9d53a30523aae9eb55843.zip | |
intel_idle: correct BXT support
Commit 5dcef69486 ("intel_idle: add BXT support") added an 8-element
lookup array with just a 2-bit value used for lookups. As per the SDM
that bit field is really 3 bits wide. While this is supposedly benign
here, future re-use of the code for other CPUs might expose the issue.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/idle/intel_idle.c')
| -rw-r--r-- | drivers/idle/intel_idle.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 5300f2545e2a..9b2ef248788d 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -1190,7 +1190,7 @@ static unsigned long long irtl_2_usec(unsigned long long irtl) if (!irtl) return 0; - ns = irtl_ns_units[(irtl >> 10) & 0x3]; + ns = irtl_ns_units[(irtl >> 10) & 0x7]; return div64_u64((irtl & 0x3FF) * ns, 1000); } |