mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2026-04-15 09:31:32 -04:00
Code Issues Packages Projects Releases Wiki Activity

wifi: wfx: simplify exclusion between scan and Rx filters

Browse Source 
The device ignore the rx filters during the scan operation.
wfx_configure_filter() acquires scan_lock to reflect this restriction.
However, it is not really necessary since mac80211 don't try to
configure Rx filters during scan.

However, the things are changing. The scan operation is going to be used
to implement remain-on-channel. In this case, wfx_configure_filter() can
be called during the scan. Currently, this scenario generate a delay
that end with a timeout in the upper layers. For the final user, some
scenario of the EasyConnect specification end with a failure.

So, avoid acquiring the scan_lock and just return.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20231004172843.195332-6-jerome.pouiller@silabs.com
This commit is contained in:
Jérôme Pouiller
2023-10-04 19:28:40 +02:00
committed by Kalle Valo
parent fc5cb24fd5
commit f091bcb62d
1 changed files with 4 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/wireless/silabs/wfx/sta.c
View File

@@ -96,10 +96,12 @@ void wfx_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
*total_flags &= FIF_BCN_PRBRESP_PROMISC | FIF_ALLMULTI | FIF_OTHER_BSS |
FIF_PROBE_REQ | FIF_PSPOLL;
/* Filters are ignored during the scan. No frames are filtered. */
if (mutex_is_locked(&wvif->scan_lock))
return;
mutex_lock(&wdev->conf_mutex);
while ((wvif = wvif_iterate(wdev, wvif)) != NULL) {
mutex_lock(&wvif->scan_lock);
/* Note: FIF_BCN_PRBRESP_PROMISC covers probe response and
* beacons from other BSS
*/
@@ -126,8 +128,6 @@ void wfx_configure_filter(struct ieee80211_hw *hw, unsigned int changed_flags,
else
filter_prbreq = true;
wfx_hif_set_rx_filter(wvif, filter_bssid, filter_prbreq);
mutex_unlock(&wvif->scan_lock);
}
mutex_unlock(&wdev->conf_mutex);
}