Merge branch 'smc-next'

Karsten Graul says:

====================
net/smc: updates 2021-06-02

Please apply the following patch series for smc to netdev's net-next tree.

Both patches are cleanups and remove unnecessary code.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

net/smc/smc_core.c

@@ -1235,20 +1235,6 @@ static void smc_lgr_free(struct smc_link_group *lgr)
 	kfree(lgr);
 }
 
-static void smcd_unregister_all_dmbs(struct smc_link_group *lgr)
-{
-	int i;
-
-	for (i = 0; i < SMC_RMBE_SIZES; i++) {
-		struct smc_buf_desc *buf_desc;
-
-		list_for_each_entry(buf_desc, &lgr->rmbs[i], list) {
-			buf_desc->len += sizeof(struct smcd_cdc_msg);
-			smc_ism_unregister_dmb(lgr->smcd, buf_desc);
-		}
-	}
-}
-
 static void smc_sk_wake_ups(struct smc_sock *smc)
 {
 	smc->sk.sk_write_space(&smc->sk);
@@ -1285,7 +1271,6 @@ static void smc_lgr_cleanup(struct smc_link_group *lgr)
 {
 	if (lgr->is_smcd) {
 		smc_ism_signal_shutdown(lgr);
-		smcd_unregister_all_dmbs(lgr);
 	} else {
 		u32 rsn = lgr->llc_termination_rsn;
 

net/smc/smc_ism.c

@@ -470,7 +470,6 @@ void smcd_unregister_dev(struct smcd_dev *smcd)
 	mutex_unlock(&smcd_dev_list.mutex);
 	smcd->going_away = 1;
 	smc_smcd_terminate_all(smcd);
-	flush_workqueue(smcd->event_wq);
 	destroy_workqueue(smcd->event_wq);
 
 	device_del(&smcd->dev);