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authorMordechay Goodstein <mordechay.goodstein@intel.com>2023-03-01 12:09:15 +0200
committerJohannes Berg <johannes.berg@intel.com>2023-03-07 10:29:46 +0100
commit3a867c7eef812ad4684dccd8825f1099a60b8c98 (patch)
tree4bbe8ee284b65cbdbb3d58e10ef2bbc4f33fa2f0 /net/mac80211/rx.c
parent0fd3af61731567dc0ad798c88c20f6d63fe331ea (diff)
wifi: mac80211: clear all bits that relate rtap fields on skb
Since we remove radiotap from skb data, clear all RX_FLAG_X related info that indicate info on the skb data. Also we need to do it only once so remove the clear from cooked_monitor. Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com> Signed-off-by: Gregory Greenman <gregory.greenman@intel.com> Link: https://lore.kernel.org/r/20230301115906.74d3efe19eae.Ie17a35864d2e120f9858516a2e3d3047d83cf805@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/rx.c')
-rw-r--r--net/mac80211/rx.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index f7fdfe710951..095bcd2552bb 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -43,6 +43,7 @@ static struct sk_buff *ieee80211_clean_skb(struct sk_buff *skb,
unsigned int present_fcs_len,
unsigned int rtap_space)
{
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_hdr *hdr;
unsigned int hdrlen;
__le16 fc;
@@ -51,6 +52,14 @@ static struct sk_buff *ieee80211_clean_skb(struct sk_buff *skb,
__pskb_trim(skb, skb->len - present_fcs_len);
pskb_pull(skb, rtap_space);
+ /* After pulling radiotap header, clear all flags that indicate
+ * info in skb->data.
+ */
+ status->flag &= ~(RX_FLAG_RADIOTAP_VENDOR_DATA |
+ RX_FLAG_RADIOTAP_LSIG |
+ RX_FLAG_RADIOTAP_HE_MU |
+ RX_FLAG_RADIOTAP_HE);
+
hdr = (void *)skb->data;
fc = hdr->frame_control;
@@ -3916,8 +3925,6 @@ static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx,
if (!local->cooked_mntrs)
goto out_free_skb;
- /* vendor data is long removed here */
- status->flag &= ~RX_FLAG_RADIOTAP_VENDOR_DATA;
/* room for the radiotap header based on driver features */
needed_headroom = ieee80211_rx_radiotap_hdrlen(local, status, skb);