On Wed, 2021-03-10 at 10:26 -0800, Aloka Dixit wrote: > > +/** > + * struct cfg80211_multiple_bssid - AP settings for multi bssid > + * > + * @index: the index of this AP in the multi bssid group. > + * @count: the total number of multi bssid peer APs. > + * @parent: non-transmitted BSSs transmitted parents index > + * @ema: Shall the beacons be sent out in EMA mode. > + */ > +struct cfg80211_multiple_bssid { > + u8 index; > + u8 count; > + u32 parent; > + bool ema; > +}; Can reorder this to make it smaller: bool before u32), or even u32 element first. > +/** > + * struct cfg80211_multiple_bssid_data - Multiple BSSID elements > + * > + * @cnt: Number of elements in array %elems. > + * > + * @elems: Array of multiple BSSID element(s) to be added into Beacon frames. > + * @elems.data: Data for multiple BSSID elements. > + * @elems.len: Length of data. > + */ > +struct cfg80211_multiple_bssid_data { > + u8 cnt; > + struct { > + u8 *data; > + size_t len; > + } elems[]; > +}; Why are the elements separate, rather than a single big buffer with all elements? > + * @multiple_bssid.max_num_vaps: Maximum number of VAPS supported by the driver Please use upstream terminology, we don't use the term "VAP" (and "VAPS" would be wrong anyway, "VAPs"). I'd probably call this "max_interfaces", maybe we'll extend this to other things (mesh?) later? > > +/** > + * enum nl80211_multiple_bssid_elems_attributes - Attributes used to pass > + * multiple BSSID elements data. > + * > + * @__NL80211_MULTIPLE_BSSID_ELEMS_ATTR_INVALID: Invalid > + * > + * @NL80211_MULTIPLE_BSSID_ELEMS_ATTR_COUNT: Number of multiple BSSID > + * elements (u8). > + * > + * @NL80211_MULTIPLE_BSSID_ELEMS_ATTR_DATA: Array of multiple BSSID elements. > + */ > +enum nl80211_multiple_bssid_elems_attributes { > + __NL80211_MULTIPLE_BSSID_ELEMS_ATTR_INVALID, > + > + NL80211_MULTIPLE_BSSID_ELEMS_ATTR_COUNT, > + NL80211_MULTIPLE_BSSID_ELEMS_ATTR_DATA, > Can you clarify why this is an array? See also above. johannes