[PATCH 13/44] coresight: perf: Avoid unncessary CPU hotplug read lock

From: Suzuki K Poulose We hold the read lock on CPU hotplug to simply copy the online mask, which is not really needed. And this can cause a lockdep warning, like : [ 54.632093] == [ 54.638207] WARNING: possible circular locking dependency

[PATCH 13/44] coresight: perf: Avoid unncessary CPU hotplug read lock

From: Suzuki K Poulose We hold the read lock on CPU hotplug to simply copy the online mask, which is not really needed. And this can cause a lockdep warning, like : [ 54.632093] == [ 54.638207] WARNING: possible circular locking dependency