Sascha Hauer s.hauer@pengutronix.de writes:
The mwifiex chips support simultaneous Accesspoint and station mode, but this only works when all are using the same channel. The downstream driver uses ECSA which makes the Accesspoint automatically switch to the channel the station is going to use. Until this is implemented in the mwifiex driver at least catch this situation and bail out with an error. Userspace doesn't have a meaningful way to figure out what went wrong, so print an error message to give the user a clue.
Without this patch the driver would timeout on the HostCmd_CMD_802_11_ASSOCIATE command when creating a station with a channel different from the one that an existing accesspoint uses.
Signed-off-by: Sascha Hauer s.hauer@pengutronix.de Cc: stable@vger.kernel.org
Does this mean that iface combination definitions are wrong? For example:
static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta_drcs = { .limits = mwifiex_ap_sta_limits, .num_different_channels = 2, .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits), .max_interfaces = MWIFIEX_MAX_BSS_NUM, .beacon_int_infra_match = true, };