From: Mohd Faizal Abdul Rahim Date: Thu, 10 Nov 2022 06:45:52 +0000 (+0800) Subject: net: stmmac: ensure tx function is not running in stmmac_xdp_release() X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=77711683a50477de39757d67ab1a3638220d6860;p=people%2Faperard%2Flinux.git net: stmmac: ensure tx function is not running in stmmac_xdp_release() When stmmac_xdp_release() is called, there is a possibility that tx function is still running on other queues which will lead to tx queue timed out and reset adapter. This commit ensure that tx function is not running xdp before release flow continue to run. Fixes: ac746c8520d9 ("net: stmmac: enhance XDP ZC driver level switching performance") Signed-off-by: Song Yoong Siang Signed-off-by: Mohd Faizal Abdul Rahim Signed-off-by: Noor Azura Ahmad Tarmizi Link: https://lore.kernel.org/r/20221110064552.22504-1-noor.azura.ahmad.tarmizi@linux.intel.com Signed-off-by: Jakub Kicinski --- diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 8273e6a175c84..6b43da78cdf0f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -6548,6 +6548,9 @@ void stmmac_xdp_release(struct net_device *dev) struct stmmac_priv *priv = netdev_priv(dev); u32 chan; + /* Ensure tx function is not running */ + netif_tx_disable(dev); + /* Disable NAPI process */ stmmac_disable_all_queues(priv);