diff options
| -rw-r--r-- | net/wireless/core.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/net/wireless/core.c b/net/wireless/core.c index 725adff6c7d4..158c59ecf90a 100644 --- a/net/wireless/core.c +++ b/net/wireless/core.c @@ -562,6 +562,21 @@ static int wiphy_verify_combinations(struct wiphy *wiphy) c->limits[j].max > 1)) return -EINVAL; + /* + * This isn't well-defined right now. If you have an + * IBSS interface, then its beacon interval may change + * by joining other networks, and nothing prevents it + * from doing that. + * So technically we probably shouldn't even allow AP + * and IBSS in the same interface, but it seems that + * some drivers support that, possibly only with fixed + * beacon intervals for IBSS. + */ + if (WARN_ON(types & BIT(NL80211_IFTYPE_ADHOC) && + c->beacon_int_min_gcd)) { + return -EINVAL; + } + cnt += c->limits[j].max; /* * Don't advertise an unsupported type |