mac80211: fix FEC flag in radio tap header
In mac80211, while building radiotap header
IEEE80211_RADIOTAP_MCS_HAVE_FEC flag is missing when LDPC enabled
from driver, hence LDPC is not updated properly in radiotap header.
Fix that by adding HAVE_FEC flag while building radiotap header.
Signed-off-by: P Praneesh <quic_ppranees@quicinc.com>
Link: https://lore.kernel.org/r/1638294648-844-2-git-send-email-quic_ppranees@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 9541a4c..be12fa8 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -465,7 +465,12 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
unsigned int stbc;
rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_MCS));
- *pos++ = local->hw.radiotap_mcs_details;
+ *pos = local->hw.radiotap_mcs_details;
+ if (status->enc_flags & RX_ENC_FLAG_HT_GF)
+ *pos |= IEEE80211_RADIOTAP_MCS_HAVE_FMT;
+ if (status->enc_flags & RX_ENC_FLAG_LDPC)
+ *pos |= IEEE80211_RADIOTAP_MCS_HAVE_FEC;
+ pos++;
*pos = 0;
if (status->enc_flags & RX_ENC_FLAG_SHORT_GI)
*pos |= IEEE80211_RADIOTAP_MCS_SGI;