path: root/Documentation/thermal
diff options
authorEduardo Valentin <eduardo.valentin@ti.com>2013-03-26 21:38:34 +0000
committerZhang Rui <rui.zhang@intel.com>2013-04-02 21:34:42 +0800
commit8837295a73f3500b32e18f9862c7bdde0b958648 (patch)
treef0749e2a6ad90dabf901480cbc740aa9c47a4a1f /Documentation/thermal
parentbffd1f8ac87a798515a8aed5f64047b182e049f5 (diff)
thermal: add a warning for temperature emulation feature
Because this feature is for debuging purposes, it is highly recommended to do not enable this on production systems. This patch adds warnings for system integrators, so that people are aware of this potential security issue. Signed-off-by: Eduardo Valentin <eduardo.valentin@ti.com> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Diffstat (limited to 'Documentation/thermal')
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/thermal/sysfs-api.txt b/Documentation/thermal/sysfs-api.txt
index 6859661c9d31..277530a5786c 100644
--- a/Documentation/thermal/sysfs-api.txt
+++ b/Documentation/thermal/sysfs-api.txt
@@ -265,6 +265,10 @@ emul_temp
Unit: millidegree Celsius
WO, Optional
+ WARNING: Be careful while enabling this option on production systems,
+ because userland can easily disable the thermal policy by simply
+ flooding this sysfs node with low temperature values.
* Cooling device attributes *

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