Hi, I'm not sure what to do with this now :) > > There are two functionalities. > > > > 1) 13.13.2.2 Neighbor offset synchronization method > > 2) 13.13.4.4 TBTT adjustment Yes, this much is obvious. > > The flag is updated by 2). Yes, the definition of the flag says: "The TBTT Adjusting subfield is set to 1 while the TBTT adjustment procedure is ongoing, and is set to 0 otherwise. (See 13.13.4.4.3.)" (802.11-2012 8.4.2.100.8 Mesh Capability) > > 13.13.4.4.3 TBTT scanning and adjustment procedures: > > The mesh STA shall set the TBTT Adjusting field in the Mesh > > Configuration element to 1 in order to announce that the TBTT > > adjustment procedure is ongoing. That's saying the same thing again, I guess :) > > And the flag is refered by 1) as you said. > > > > > > The purpose of the flag is to prevent 1) while 2) is ongoing. > > > > In other words, 1) has only read access authority to the flag. > > However, > > previous code updated the flag in 1). In addition, there is no code > > for > > 2). So I just remove the invalid accessing codes. > > I don't think 1) has read only access to that flag. A TSF adjust will > by definition move the TBTT as well. It seems that the wording in the spec disagrees with that - it says (twice) to set the bit only while the TBTT adjustment procedure is ongoing, which isn't the case here? Then again, what exactly *is* this code doing? It's called mesh_sync_offset_adjust_tbtt() which matches more closely "TBTT adjustment" than "neighbor offset synchronization"? The code looks more like offset synchronization though. Perhaps there's some confusing and it's kinda doing both? johannes
