Johannes Berg <johannes@xxxxxxxxxxxxxxxx> writes: > From: Johannes Berg <johannes.berg@xxxxxxxxx> > > Drivers typically expect this, as it's the case for almost all cases > where this is called (i.e. from the TX path). Also, the code in mac80211 > itself (if the driver calls ieee80211_tx_dequeue()) expects this as it > uses this_cpu_ptr() without additional protection. > > This should fix various reports of the problem: > https://bugzilla.kernel.org/show_bug.cgi?id=204127 > https://lore.kernel.org/linux-wireless/CAN5HydrWb3o_FE6A1XDnP1E+xS66d5kiEuhHfiGKkLNQokx13Q@xxxxxxxxxxxxxx/ > https://lore.kernel.org/lkml/nycvar.YFH.7.76.1909111238470.473@xxxxxxxxxxxxx/ > > Reported-by: Jiri Kosina <jikos@xxxxxxxxxx> > Reported-by: Aaron Hill <aa1ronham@xxxxxxxxx> > Reported-by: Lukas Redlinger <rel+kernel@xxxxxxxxxx> > Reported-by: Oleksii Shevchuk <alxchk@xxxxxxxxx> > Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Reviewed-by: Toke Høiland-Jørgensen <toke@xxxxxxxxxx>
