mac80211: Take into account TSF adjustment latency in Toffset setpoint
mac80211: Take into account TSF adjustment latency in Toffset setpoint

When testing mesh synchronization we observed a global TSF slowdown that
was dependent on the number of synchronized mesh stations.  This seems
to be caused by the TSF adjustment (read/write) latency.

Adding a small margin to the Toffset setpoint solved the problem.

Signed-off-by: Shinichi Hotori <a0f93e9aeb25752f8b195ec3f42ec6238f50111e@gmail.com>
Signed-off-by: Yu Niiro <c3da922c55569dfd8a9ffa7f730bf5aea4e83ec3@gmail.com>
Signed-off-by: Javier Cardona <828c1a17681e8566a17a1a4801ea67306010b273@cozybit.com>
Signed-off-by: John W. Linville <2a53bac7a5d324865ef46ec4c38b2c0fba1456b4@tuxdriver.com>

KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas