From: Casey Leedom <leedom@chelsio.com>
Subject: cxgb4: Add flag tc_flower_initialized
Patch-mainline: v4.19-rc1
Git-commit: a081e11536a716da3fd2b09061e75c09e691b2f8
References: bsc#1127371

Add flag tc_flower_initialized to indicate the
completion if tc flower initialization.

Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Denis Kirjanov <dkirjanov@suse.com>
---
 drivers/net/ethernet/chelsio/cxgb4/cxgb4.h           | 1 +
 drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c | 5 +++++
 drivers/net/ethernet/chelsio/cxgb4/sched.c           | 3 +++
 3 files changed, 9 insertions(+)

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 534b4ecf02b5..779ff7b8d4e4 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -1001,6 +1001,7 @@ struct adapter {
 	struct chcr_stats_debug chcr_stats;
 
 	/* TC flower offload */
+	bool tc_flower_initialized;
 	struct rhashtable flower_tbl;
 	struct rhashtable_params flower_ht_params;
 	struct timer_list flower_stats_timer;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
index 3c0304f18acd..3cc39f83b722 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_flower.c
@@ -848,6 +848,9 @@ int cxgb4_init_tc_flower(struct adapter *adap)
 {
 	int ret;
 
+	if (adap->tc_flower_initialized)
+		return -EEXIST;
+
 	adap->flower_ht_params = cxgb4_tc_flower_ht_params;
 	ret = rhashtable_init(&adap->flower_tbl, &adap->flower_ht_params);
 	if (ret)
@@ -856,6 +859,7 @@ int cxgb4_init_tc_flower(struct adapter *adap)
 	setup_timer(&adap->flower_stats_timer, ch_flower_stats_cb,
 		    (unsigned long)adap);
 	mod_timer(&adap->flower_stats_timer, jiffies + STATS_CHECK_PERIOD);
+	adap->tc_flower_initialized = true;
 	return 0;
 }
 
@@ -864,4 +868,5 @@ void cxgb4_cleanup_tc_flower(struct adapter *adap)
 	if (adap->flower_stats_timer.function)
 		del_timer_sync(&adap->flower_stats_timer);
 	rhashtable_destroy(&adap->flower_tbl);
+	adap->tc_flower_initialized = false;
 }
diff --git a/drivers/net/ethernet/chelsio/cxgb4/sched.c b/drivers/net/ethernet/chelsio/cxgb4/sched.c
index 9148abb7994c..7fc656680299 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/sched.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sched.c
@@ -539,6 +539,9 @@ void t4_cleanup_sched(struct adapter *adap)
 		struct port_info *pi = netdev2pinfo(adap->port[j]);
 
 		s = pi->sched_tbl;
+		if (!s)
+			continue;
+
 		for (i = 0; i < s->sched_size; i++) {
 			struct sched_class *e;
 
-- 
2.12.3