[PATCH ath-next] wifi: ath12k: avoid setting 320MHZ support on non 6GHz band

[Johannes Berg]

On Fri, 2026-01-23 at 19:33 +0100, Pablo MARTIN-GOMEZ wrote:
> 
> > @@ -4901,8 +4902,14 @@ static void ath12k_wmi_eht_caps_parse(struct ath12k_pdev *pdev, u32 band,
> >   	for (i = 0; i < WMI_MAX_EHTCAP_PHY_SIZE; i++)
> >   		cap_band->eht_cap_phy_info[i] = le32_to_cpu(cap_phy_info[i]);
> >   
> > -	if (band == NL80211_BAND_6GHZ)
> > +	if (band == NL80211_BAND_6GHZ) {
> >   		cap_band->eht_cap_phy_info[0] |= support_320mhz;
> > +	} else {
> > +		phy_cap[0] &= ~IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ;
> > +		phy_cap[1] &= ~IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK;
> > +		phy_cap[2] &= ~IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK;
> > +		phy_cap[6] &= ~IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_320MHZ;
> > +	}
> If you want to clear all 320 MHz fields, you'll also have to clear 
> IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ and 
> IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ (not sure why it is not done 
> in mac80211)
> 

This is, effectively, a firmware workaround. It doesn't belong into
mac80211. All other drivers just have their capabilities managed in the
driver anyway.

johannes