nfp: clean mc addresses in application firmware when closing port

BugLink: https://bugs.launchpad.net/bugs/2036075

commit cc7eab25b1cf3f9594fe61142d3523ce4d14a788 upstream.

When moving devices from one namespace to another, mc addresses are
cleaned in software while not removed from application firmware. Thus
the mc addresses are remained and will cause resource leak.

Now use `__dev_mc_unsync` to clean mc addresses when closing port.

Fixes: e20aa07 ("nfp: fix schedule in atomic context when sync mc address")
Cc: stable@vger.kernel.org
Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com>
Acked-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Message-ID: <20230705052818.7122-1-louis.peens@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>

drivers/net/ethernet/netronome/nfp/nfp_net_common.c

@@ -53,6 +53,8 @@
 #include "crypto/crypto.h"
 #include "crypto/fw.h"
 
+static int nfp_net_mc_unsync(struct net_device *netdev, const unsigned char *addr);
+
 /**
  * nfp_net_get_fw_version() - Read and parse the FW version
  * @fw_ver:	Output fw_version structure to read to
@@ -1084,6 +1086,9 @@ static int nfp_net_netdev_close(struct net_device *netdev)
 
 	/* Step 2: Tell NFP
 	 */
+	if (nn->cap_w1 & NFP_NET_CFG_CTRL_MCAST_FILTER)
+		__dev_mc_unsync(netdev, nfp_net_mc_unsync);
+
 	nfp_net_clear_config_and_disable(nn);
 	nfp_port_configure(netdev, false);