[71/76] wifi: mac80211: don't check carrier in chanctx code

Commit Message

Johannes Berg July 13, 2022, 9:44 a.m. UTC

From: Andrei Otcheretianski <[e-mail]>

We check here that we don't enable TX (netif_carrier_ok())
before we actually start using some channel context, but to
our knowledge this check has never triggered, and with MLO
it's just wrong since links can be added and removed much
more dynamically than before.

Simply remove the checks, there's no really good way to do
anything that would replace them.

Signed-off-by: Andrei Otcheretianski <[e-mail]>
Signed-off-by: Johannes Berg <[e-mail]>
---
 net/mac80211/chan.c | 4 ----
 1 file changed, 4 deletions(-)

Patch

diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c
index 5ab210706123..2e9bc285f0a5 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -1800,8 +1800,6 @@  int ieee80211_link_use_channel(struct ieee80211_link_data *link,
 
 	lockdep_assert_held(&local->mtx);
 
-	WARN_ON(sdata->dev && netif_carrier_ok(sdata->dev));
-
 	mutex_lock(&local->chanctx_mtx);
 
 	ret = cfg80211_chandef_dfs_required(local->hw.wiphy,
@@ -1989,8 +1987,6 @@  void ieee80211_link_release_channel(struct ieee80211_link_data *link)
 {
 	struct ieee80211_sub_if_data *sdata = link->sdata;
 
-	WARN_ON(sdata->dev && netif_carrier_ok(sdata->dev));
-
 	mutex_lock(&sdata->local->chanctx_mtx);
 	if (rcu_access_pointer(link->conf->chanctx_conf)) {
 		lockdep_assert_held(&sdata->local->mtx);