4.19-stable review patch. If anyone has any objections, please let me know.
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From: Yan-Hsuan Chuang yhchuang@realtek.com
commit c752cac9db1b0c469db7ba9d17af4ba708984db5 upstream.
cfg80211_sta_opmode_change_notify needs a gfp_t flag to hint the nl80211 stack when allocating new skb, but it is called under tasklet context here with GFP_KERNEL and kernel will yield a warning about it.
Cc: stable@vger.kernel.org Fixes: ff84e7bfe176 ("mac80211: Add support to notify ht/vht opmode modification.") Signed-off-by: Yan-Hsuan Chuang yhchuang@realtek.com ACKed-by: Larry Finger Larry.Finger@lwfinger.net Signed-off-by: Johannes Berg johannes.berg@intel.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- net/mac80211/rx.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -3029,7 +3029,7 @@ ieee80211_rx_h_action(struct ieee80211_r cfg80211_sta_opmode_change_notify(sdata->dev, rx->sta->addr, &sta_opmode, - GFP_KERNEL); + GFP_ATOMIC); goto handled; } case WLAN_HT_ACTION_NOTIFY_CHANWIDTH: { @@ -3066,7 +3066,7 @@ ieee80211_rx_h_action(struct ieee80211_r cfg80211_sta_opmode_change_notify(sdata->dev, rx->sta->addr, &sta_opmode, - GFP_KERNEL); + GFP_ATOMIC); goto handled; } default: