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qcacld-3.0: Don't clear MLO vdev flags while cleanup the link

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Currently, MLO flags are cleared before issuing disconnect on
the link vdev when DUT roams to a single link ML-AP. But these
flags get cleared as part of disconnect handler and not supposed
to be cleared anywhere else.
Clearing these flags before issuing disconnect on link causes
sending disconnect done indication to kernel as the flags
got cleared, which make the vdev as non-MLO. This race condition
is possible when a disconnect is queued from userspace on
link vdev while one disconnect gets processed on it(due to
single link roaming).

Change-Id: I8206c1b8197bf26ad852eafb631c8585bc749846
CRs-Fixed: 3439175
This commit is contained in:
Srinivas Dasari
2023-04-07 09:45:54 -07:00
committed by Madan Koyyalamudi
parent a6d07e9314
commit 12c760b99b
1 changed files with 9 additions and 9 deletions
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18
components/umac/mlme/mlo_mgr/src/wlan_mlo_mgr_roam.c
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@@ -88,16 +88,16 @@ end:
static void
mlo_cleanup_link(struct wlan_objmgr_vdev *vdev, uint8_t num_setup_links)
{
if (num_setup_links >= 2 &&
wlan_vdev_mlme_is_mlo_link_vdev(vdev)) {
/*
* Cleanup the non-assoc link link in below cases,
* 1. Roamed to single link-MLO AP
* 2. Roamed to an MLO AP but 4-way handshake is offloaded to
* userspace, i.e.auth_status = ROAM_AUTH_STATUS_CONNECTED
* 3. Roamed to non-MLO AP(num_setup_links = 0)
* This covers all supported combinations. So cleanup the link always.
*/
if (wlan_vdev_mlme_is_mlo_link_vdev(vdev))
cm_cleanup_mlo_link(vdev);
} else if (!num_setup_links || wlan_vdev_mlme_is_mlo_link_vdev(vdev)) {
wlan_vdev_mlme_clear_mlo_vdev(vdev);
if (wlan_vdev_mlme_is_mlo_link_vdev(vdev)) {
cm_cleanup_mlo_link(vdev);
wlan_vdev_mlme_clear_mlo_link_vdev(vdev);
}
}
}
static void