On Fri, 2020-09-11 at 09:29 +0000, Wen Gong wrote: > On 2020-05-29 03:34, Johannes Berg wrote: > > From: Johannes Berg <johannes.berg@xxxxxxxxx> > > > > Support connecting to HE 6 GHz APs and mesh networks on 6 GHz, > > where the HT/VHT information is missing but instead the HE 6 GHz > > band capability is present, and the 6 GHz Operation information > > field is used to encode the channel configuration instead of the > > HT/VHT operation elements. > > > > Also add some other bits needed to connect to 6 GHz networks. > > > > Link: > > https://lore.kernel.org/r/1589399105-25472-10-git-send-email-rmanohar@xxxxxxxxxxxxxx > > Co-developed-by: Rajkumar Manoharan <rmanohar@xxxxxxxxxxxxxx> > > Signed-off-by: Rajkumar Manoharan <rmanohar@xxxxxxxxxxxxxx> > > Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> > > --- > > net/mac80211/ieee80211_i.h | 3 ++ > > net/mac80211/mesh.c | 1 + > > net/mac80211/mlme.c | 69 +++++++++++++++++------- > > net/mac80211/util.c | 106 +++++++++++++++++++++++++++++++++++++ > > 4 files changed, 160 insertions(+), 19 deletions(-) > > > [...] > > @@ -4838,21 +4860,23 @@ static int ieee80211_prep_channel(struct > > ieee80211_sub_if_data *sdata, > > IEEE80211_STA_DISABLE_160MHZ); > > > > /* disable HT/VHT/HE if we don't support them */ > > - if (!sband->ht_cap.ht_supported) { > > + if (!sband->ht_cap.ht_supported && !is_6ghz) { > > ifmgd->flags |= IEEE80211_STA_DISABLE_HT; > > ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; > > ifmgd->flags |= IEEE80211_STA_DISABLE_HE; > > } > > > > - if (!sband->vht_cap.vht_supported) > > + if (!sband->vht_cap.vht_supported && !is_6ghz) { > > ifmgd->flags |= IEEE80211_STA_DISABLE_VHT; > > + ifmgd->flags |= IEEE80211_STA_DISABLE_HE; > > + } > when connec to NL80211_BAND_2GHZ, it does not support vht, then it > failed for HE and connected with HT mode. > I tesed with below change, it fix the issue, it connected with HE mode > for NL80211_BAND_2GHZ with an HE mode 11AX AP. Hmm. Yeah, that seems reasonable. I wonder why/how we never saw this, hm. Can you send a real patch? johannes
