wifi: iwlwifi: mld: nan: add availability attribute to schedule config

Add the availability attribute to the schedule config command. The
firmware needs to add this attribute to schedule update frames
(e.g. when ULW changed or the local schedule changed).

Signed-off-by: Avraham Stern <avraham.stern@intel.com>
Link: https://patch.msgid.link/20260515150751.97809376508e.Ie7f00f97992016c6bb2f4a5c9fc201ac58eed8ce@changeid
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>

diff --git a/drivers/net/wireless/intel/iwlwifi/mld/nan.c b/drivers/net/wireless/intel/iwlwifi/mld/nan.c
index 530ba263c5f04f30f7a293f456de72289ddb4682..d13b2374b6422a374a4b6d929ddb91bbb477065b 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mld/nan.c
+++ b/drivers/net/wireless/intel/iwlwifi/mld/nan.c
@@ -693,6 +693,14 @@ void iwl_mld_nan_vif_cfg_changed(struct iwl_mld *mld,
                break;
        case 2:
                cmd_size = sizeof(struct iwl_nan_schedule_cmd);
+
+               if (sched_cfg->avail_blob_len &&
+                   !WARN_ON(sched_cfg->avail_blob_len >
+                            sizeof(cmd.avail_attr.attr))) {
+                       cmd.avail_attr.attr_len = sched_cfg->avail_blob_len;
+                       memcpy(cmd.avail_attr.attr, sched_cfg->avail_blob,
+                              sched_cfg->avail_blob_len);
+               }
                break;
        default:
                IWL_ERR(mld, "NAN: unsupported NAN schedule cmd version %d\n",
@@ -727,6 +735,15 @@ void iwl_mld_nan_vif_cfg_changed(struct iwl_mld *mld,
        BUILD_BUG_ON(ARRAY_SIZE(sched_cfg->channels) !=
                     ARRAY_SIZE(cmd.channels));
 
+       /*
+        * mac80211 removes unused channels before adding new ones, so it may
+        * update an empty schedule with an availability attribute because it
+        * is going to add channels later. Since the firmware does not expect
+        * an availability attribute without channels, ignore it in that case.
+        */
+       if (empty_schedule)
+               cmd.avail_attr.attr_len = 0;
+
        /* find links we can keep (same chanctx/PHY) */
        for (i = 0; i < ARRAY_SIZE(sched_cfg->channels); i++) {
                struct ieee80211_chanctx_conf *chanctx;