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authorDenis Kirjanov <kda@linux-powerpc.org>2019-08-06 12:51:11 +0200
committerDavid S. Miller <davem@davemloft.net>2019-08-06 11:47:19 -0700
commitd0d006a43e9a7a796f6f178839c92fcc222c564d (patch)
treef44e29fb12bad719be315c5dbc14ef8d3015448b /drivers/net/ethernet/emulex/benet
parentdebea2cd3193ac868289e8893c3a719c265b0612 (diff)
downloadlinux-d0d006a43e9a7a796f6f178839c92fcc222c564d.tar.gz
be2net: disable bh with spin_lock in be_process_mcc
be_process_mcc() is invoked in 3 different places and
always with BHs disabled except the be_poll function
but since it's invoked from softirq with BHs
disabled it won't hurt.

v1->v2: added explanation to the patch
v2->v3: add a missing call from be_cmds.c

Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/emulex/benet')
-rw-r--r--drivers/net/ethernet/emulex/benet/be_cmds.c6
-rw-r--r--drivers/net/ethernet/emulex/benet/be_main.c2
2 files changed, 2 insertions, 6 deletions
diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c
index ef5d61d57597..323976c811e9 100644
--- a/drivers/net/ethernet/emulex/benet/be_cmds.c
+++ b/drivers/net/ethernet/emulex/benet/be_cmds.c
@@ -550,7 +550,7 @@ int be_process_mcc(struct be_adapter *adapter)
 	int num = 0, status = 0;
 	struct be_mcc_obj *mcc_obj = &adapter->mcc_obj;
 
-	spin_lock(&adapter->mcc_cq_lock);
+	spin_lock_bh(&adapter->mcc_cq_lock);
 
 	while ((compl = be_mcc_compl_get(adapter))) {
 		if (compl->flags & CQE_FLAGS_ASYNC_MASK) {
@@ -566,7 +566,7 @@ int be_process_mcc(struct be_adapter *adapter)
 	if (num)
 		be_cq_notify(adapter, mcc_obj->cq.id, mcc_obj->rearm_cq, num);
 
-	spin_unlock(&adapter->mcc_cq_lock);
+	spin_unlock_bh(&adapter->mcc_cq_lock);
 	return status;
 }
 
@@ -581,9 +581,7 @@ static int be_mcc_wait_compl(struct be_adapter *adapter)
 		if (be_check_error(adapter, BE_ERROR_ANY))
 			return -EIO;
 
-		local_bh_disable();
 		status = be_process_mcc(adapter);
-		local_bh_enable();
 
 		if (atomic_read(&mcc_obj->q.used) == 0)
 			break;
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 2edb86ec9fe9..4d8e40ac66d2 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -5630,9 +5630,7 @@ static void be_worker(struct work_struct *work)
 	 * mcc completions
 	 */
 	if (!netif_running(adapter->netdev)) {
-		local_bh_disable();
 		be_process_mcc(adapter);
-		local_bh_enable();
 		goto reschedule;
 	}