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authorJohannes Berg <johannes.berg@intel.com>2020-05-28 22:34:42 +0300
committerJohannes Berg <johannes.berg@intel.com>2020-05-31 12:27:14 +0300
commitf438136528482f98535889c9a6f99bbacdd92870 (patch)
treef8a0d062939819fce0e0b57804cf0ab369b494a9 /net/wireless/core.c
parent461ce35d5535c1479384f67fcf4bfc3f3610edca (diff)
downloadlinux-f438136528482f98535889c9a6f99bbacdd92870.tar.xz
cfg80211: require HE capabilities for 6 GHz band
On 6 GHz band, HE capabilities must be available for all of the interface types, otherwise we shouldn't use 6 GHz. Check this. Link: https://lore.kernel.org/r/20200528213443.5881cb3c8c4a.I583b54172f91f98d44af64a16c5826fe458cbb27@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/core.c')
-rw-r--r--net/wireless/core.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 1651f86db6ca..5b6714460490 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -791,6 +791,7 @@ int wiphy_register(struct wiphy *wiphy)
/* sanity check supported bands/channels */
for (band = 0; band < NUM_NL80211_BANDS; band++) {
u16 types = 0;
+ bool have_he = false;
sband = wiphy->bands[band];
if (!sband)
@@ -859,8 +860,17 @@ int wiphy_register(struct wiphy *wiphy)
return -EINVAL;
types |= iftd->types_mask;
+
+ if (i == 0)
+ have_he = iftd->he_cap.has_he;
+ else
+ have_he = have_he &&
+ iftd->he_cap.has_he;
}
+ if (WARN_ON(!have_he && band == NL80211_BAND_6GHZ))
+ return -EINVAL;
+
have_band = true;
}