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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>
This commit is contained in:
Mordechay Goodstein 2023-03-01 12:09:15 +02:00 committed by Johannes Berg
parent 0fd3af6173
commit 3a867c7eef
1 changed files with 9 additions and 2 deletions
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11
net/mac80211/rx.c
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@ -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);