diff options
| -rw-r--r-- | package/kernel/mac80211/patches/subsys/331-mac80211-do-not-allow-bigger-VHT-MPDUs-than-the-hard.patch | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/package/kernel/mac80211/patches/subsys/331-mac80211-do-not-allow-bigger-VHT-MPDUs-than-the-hard.patch b/package/kernel/mac80211/patches/subsys/331-mac80211-do-not-allow-bigger-VHT-MPDUs-than-the-hard.patch new file mode 100644 index 0000000000..ce39fe0d8b --- /dev/null +++ b/package/kernel/mac80211/patches/subsys/331-mac80211-do-not-allow-bigger-VHT-MPDUs-than-the-hard.patch @@ -0,0 +1,34 @@ +From: Felix Fietkau <nbd@nbd.name> +Date: Thu, 17 Sep 2020 12:07:19 +0200 +Subject: [PATCH] mac80211: do not allow bigger VHT MPDUs than the hardware + supports + +Limit maximum VHT MPDU size by local capability + +Signed-off-by: Felix Fietkau <nbd@nbd.name> +--- + +--- a/net/mac80211/vht.c ++++ b/net/mac80211/vht.c +@@ -170,10 +170,7 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(stru + /* take some capabilities as-is */ + cap_info = le32_to_cpu(vht_cap_ie->vht_cap_info); + vht_cap->cap = cap_info; +- vht_cap->cap &= IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_3895 | +- IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_7991 | +- IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 | +- IEEE80211_VHT_CAP_RXLDPC | ++ vht_cap->cap &= IEEE80211_VHT_CAP_RXLDPC | + IEEE80211_VHT_CAP_VHT_TXOP_PS | + IEEE80211_VHT_CAP_HTC_VHT | + IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK | +@@ -182,6 +179,9 @@ ieee80211_vht_cap_ie_to_sta_vht_cap(stru + IEEE80211_VHT_CAP_RX_ANTENNA_PATTERN | + IEEE80211_VHT_CAP_TX_ANTENNA_PATTERN; + ++ vht_cap->cap |= min_t(u32, cap_info & IEEE80211_VHT_CAP_MAX_MPDU_MASK, ++ own_cap.cap & IEEE80211_VHT_CAP_MAX_MPDU_MASK); ++ + /* and some based on our own capabilities */ + switch (own_cap.cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK) { + case IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ: |