On Fri, 2015-01-30 at 14:06 +0100, Michal Kazior wrote: > I'm a bit reluctant to freely use mac80211 owned structures out of > mac80211_ops callback context, i.e. from a tasklet fearing > inconsistencies. Or am I worrying unnecessarily? If so I guess I'll > redo this and use mac80211's structures directly :-)
Yeah that's a concern, we were just looking at something similar. However, I think at least with channel contexts you should be fine since mac80211 never really modifies them much, except for the width and # of chains needed? We've recently seen a similar issue with vif->bss_conf, and I'm considering making that an RCU-protected pointer rather than the embedded sub-struct, that way mac80211 can replace it atomically when needed. I've yet to see if that's practical though. johannes -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
