cfg80211: keep track of supported interface modes

It is obviously good for userspace to know up front which
interface modes a given piece of hardware might support (even
if adding such an interface might fail later because of
concurrency issues), so let's make cfg80211 aware of that.
For good measure, disallow adding interfaces in all other
modes so drivers don't forget to announce support for one mode
when they add it.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Stephen Blackheath <tramp.enshrine.stephen@blacksapphire.com>
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index a622fc33590a..cee3045f1606 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -7888,6 +7888,11 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
         hw->flags = IEEE80211_HW_SIGNAL_DBM |
                     IEEE80211_HW_NOISE_DBM;
 
+        hw->wiphy->interface_modes =
+                BIT(NL80211_IFTYPE_AP) |
+                BIT(NL80211_IFTYPE_STATION) |
+                BIT(NL80211_IFTYPE_ADHOC);
+
         /* 4 EDCA QOS priorities */
         hw->queues = 4;