cpuidle: menu: allow state 0 to be disabled
authorNicholas Piggin <npiggin@gmail.com>
Mon, 26 Jun 2017 05:38:15 +0000 (15:38 +1000)
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>
Thu, 29 Jun 2017 20:59:17 +0000 (22:59 +0200)
commit3ed09c94580de9d5b18cc35d1f97e9f24cd9233b
tree17e531d2f419ed7a8ec5b611f9c00d3ba0b43915
parent654d08a42a5660514df5a5a6ed4dc1b0c978a0a3
cpuidle: menu: allow state 0 to be disabled

The menu driver does not allow state0 to be disabled completely.
If it is disabled but other enabled states don't meet latency
requirements, it is still used.

Fix this by starting with the first enabled idle state. Fall back
to state 0 if no idle states are enabled (arguably this should be
-EINVAL if it is attempted, but this is the minimal fix).

Acked-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
drivers/cpuidle/governors/menu.c