netdev - [PATCH net 5/6] iavf: sprinkle netdev_assert

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Message-ID: <20250603171710.2336151-6-anthony.l.nguyen@intel.com>
Date: Tue,  3 Jun 2025 10:17:06 -0700
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	andrew+netdev@...n.ch,
	netdev@...r.kernel.org
Cc: Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	anthony.l.nguyen@...el.com,
	sdf@...ichev.me,
	Jacob Keller <jacob.e.keller@...el.com>,
	Rafal Romanowski <rafal.romanowski@...el.com>
Subject: [PATCH net 5/6] iavf: sprinkle netdev_assert_locked() annotations

From: Przemek Kitszel <przemyslaw.kitszel@...el.com>

Lockdep annotations help in general, but here it is extra good, as next
commit will remove crit lock.

Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>
Signed-off-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
Tested-by: Rafal Romanowski <rafal.romanowski@...el.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/iavf/iavf_ethtool.c |  6 ++++++
 drivers/net/ethernet/intel/iavf/iavf_main.c    | 10 ++++++++++
 2 files changed, 16 insertions(+)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
index 288bb5b2e72e..03d86fe80ad9 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_ethtool.c
@@ -4,6 +4,8 @@
 #include <linux/bitfield.h>
 #include <linux/uaccess.h>
 
+#include <net/netdev_lock.h>
+
 /* ethtool support for iavf */
 #include "iavf.h"
 
@@ -1259,6 +1261,8 @@ static int iavf_add_fdir_ethtool(struct iavf_adapter *adapter, struct ethtool_rx
 	int count = 50;
 	int err;
 
+	netdev_assert_locked(adapter->netdev);
+
 	if (!(adapter->flags & IAVF_FLAG_FDIR_ENABLED))
 		return -EOPNOTSUPP;
 
@@ -1440,6 +1444,8 @@ iavf_set_adv_rss_hash_opt(struct iavf_adapter *adapter,
 	u64 hash_flds;
 	u32 hdrs;
 
+	netdev_assert_locked(adapter->netdev);
+
 	if (!ADV_RSS_SUPPORT(adapter))
 		return -EOPNOTSUPP;
 
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 4b6963ffaba5..bf8c7baf2ab8 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -1292,6 +1292,8 @@ static void iavf_configure(struct iavf_adapter *adapter)
  **/
 static void iavf_up_complete(struct iavf_adapter *adapter)
 {
+	netdev_assert_locked(adapter->netdev);
+
 	iavf_change_state(adapter, __IAVF_RUNNING);
 	clear_bit(__IAVF_VSI_DOWN, adapter->vsi.state);
 
@@ -1417,6 +1419,8 @@ void iavf_down(struct iavf_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
 
+	netdev_assert_locked(netdev);
+
 	if (adapter->state <= __IAVF_DOWN_PENDING)
 		return;
 
@@ -3078,6 +3082,8 @@ static void iavf_disable_vf(struct iavf_adapter *adapter)
 	struct iavf_vlan_filter *fv, *fvtmp;
 	struct iavf_cloud_filter *cf, *cftmp;
 
+	netdev_assert_locked(adapter->netdev);
+
 	adapter->flags |= IAVF_FLAG_PF_COMMS_FAILED;
 
 	/* We don't use netif_running() because it may be true prior to
@@ -5194,6 +5200,8 @@ iavf_shaper_set(struct net_shaper_binding *binding,
 	struct iavf_ring *tx_ring;
 	int ret = 0;
 
+	netdev_assert_locked(adapter->netdev);
+
 	mutex_lock(&adapter->crit_lock);
 	if (handle->id >= adapter->num_active_queues)
 		goto unlock;
@@ -5222,6 +5230,8 @@ static int iavf_shaper_del(struct net_shaper_binding *binding,
 	struct iavf_adapter *adapter = netdev_priv(binding->netdev);
 	struct iavf_ring *tx_ring;
 
+	netdev_assert_locked(adapter->netdev);
+
 	mutex_lock(&adapter->crit_lock);
 	if (handle->id >= adapter->num_active_queues)
 		goto unlock;
-- 
2.47.1