Merge net-next/main to resolve conflicts

There are a few conflicts between the work that went
into wireless and that's here now, resolve them.

Signed-off-by: Johannes Berg <[email protected]>

1 files changed, 30 insertions, 17 deletions

diff --git a/drivers/net/netdevsim/netdev.c b/drivers/net/netdevsim/netdev.c
index a41dc79e9c2e..b67af4651185 100644
--- a/drivers/net/netdevsim/netdev.c
+++ b/drivers/net/netdevsim/netdev.c
@@ -25,6 +25,7 @@
 #include <net/page_pool/helpers.h>
 #include <net/netlink.h>
 #include <net/net_shaper.h>
+#include <net/netdev_lock.h>
 #include <net/pkt_cls.h>
 #include <net/rtnetlink.h>
 #include <net/udp_tunnel.h>
@@ -115,7 +116,8 @@ static int nsim_change_mtu(struct net_device *dev, int new_mtu)
 {
 	struct netdevsim *ns = netdev_priv(dev);
 
-	if (ns->xdp.prog && new_mtu > NSIM_XDP_MAX_MTU)
+	if (ns->xdp.prog && !ns->xdp.prog->aux->xdp_has_frags &&
+	    new_mtu > NSIM_XDP_MAX_MTU)
 		return -EBUSY;
 
 	WRITE_ONCE(dev->mtu, new_mtu);
@@ -402,7 +404,7 @@ static int nsim_init_napi(struct netdevsim *ns)
 	for (i = 0; i < dev->num_rx_queues; i++) {
 		rq = ns->rq[i];
 
-		netif_napi_add_config(dev, &rq->napi, nsim_poll, i);
+		netif_napi_add_config_locked(dev, &rq->napi, nsim_poll, i);
 	}
 
 	for (i = 0; i < dev->num_rx_queues; i++) {
@@ -422,7 +424,7 @@ err_pp_destroy:
 	}
 
 	for (i = 0; i < dev->num_rx_queues; i++)
-		__netif_napi_del(&ns->rq[i]->napi);
+		__netif_napi_del_locked(&ns->rq[i]->napi);
 
 	return err;
 }
@@ -452,7 +454,7 @@ static void nsim_enable_napi(struct netdevsim *ns)
 		struct nsim_rq *rq = ns->rq[i];
 
 		netif_queue_set_napi(dev, i, NETDEV_QUEUE_TYPE_RX, &rq->napi);
-		napi_enable(&rq->napi);
+		napi_enable_locked(&rq->napi);
 	}
 }
 
@@ -461,6 +463,8 @@ static int nsim_open(struct net_device *dev)
 	struct netdevsim *ns = netdev_priv(dev);
 	int err;
 
+	netdev_assert_locked(dev);
+
 	err = nsim_init_napi(ns);
 	if (err)
 		return err;
@@ -478,8 +482,8 @@ static void nsim_del_napi(struct netdevsim *ns)
 	for (i = 0; i < dev->num_rx_queues; i++) {
 		struct nsim_rq *rq = ns->rq[i];
 
-		napi_disable(&rq->napi);
-		__netif_napi_del(&rq->napi);
+		napi_disable_locked(&rq->napi);
+		__netif_napi_del_locked(&rq->napi);
 	}
 	synchronize_net();
 
@@ -494,6 +498,8 @@ static int nsim_stop(struct net_device *dev)
 	struct netdevsim *ns = netdev_priv(dev);
 	struct netdevsim *peer;
 
+	netdev_assert_locked(dev);
+
 	netif_carrier_off(dev);
 	peer = rtnl_dereference(ns->peer);
 	if (peer)
@@ -679,7 +685,8 @@ nsim_queue_mem_alloc(struct net_device *dev, void *per_queue_mem, int idx)
 		goto err_free;
 
 	if (!ns->rq_reset_mode)
-		netif_napi_add_config(dev, &qmem->rq->napi, nsim_poll, idx);
+		netif_napi_add_config_locked(dev, &qmem->rq->napi, nsim_poll,
+					     idx);
 
 	return 0;
 
@@ -696,7 +703,7 @@ static void nsim_queue_mem_free(struct net_device *dev, void *per_queue_mem)
 	page_pool_destroy(qmem->pp);
 	if (qmem->rq) {
 		if (!ns->rq_reset_mode)
-			netif_napi_del(&qmem->rq->napi);
+			netif_napi_del_locked(&qmem->rq->napi);
 		page_pool_destroy(qmem->rq->page_pool);
 		nsim_queue_free(qmem->rq);
 	}
@@ -708,9 +715,11 @@ nsim_queue_start(struct net_device *dev, void *per_queue_mem, int idx)
 	struct nsim_queue_mem *qmem = per_queue_mem;
 	struct netdevsim *ns = netdev_priv(dev);
 
+	netdev_assert_locked(dev);
+
 	if (ns->rq_reset_mode == 1) {
 		ns->rq[idx]->page_pool = qmem->pp;
-		napi_enable(&ns->rq[idx]->napi);
+		napi_enable_locked(&ns->rq[idx]->napi);
 		return 0;
 	}
 
@@ -718,15 +727,17 @@ nsim_queue_start(struct net_device *dev, void *per_queue_mem, int idx)
 	 * here we want to test various call orders.
 	 */
 	if (ns->rq_reset_mode == 2) {
-		netif_napi_del(&ns->rq[idx]->napi);
-		netif_napi_add_config(dev, &qmem->rq->napi, nsim_poll, idx);
+		netif_napi_del_locked(&ns->rq[idx]->napi);
+		netif_napi_add_config_locked(dev, &qmem->rq->napi, nsim_poll,
+					     idx);
 	} else if (ns->rq_reset_mode == 3) {
-		netif_napi_add_config(dev, &qmem->rq->napi, nsim_poll, idx);
-		netif_napi_del(&ns->rq[idx]->napi);
+		netif_napi_add_config_locked(dev, &qmem->rq->napi, nsim_poll,
+					     idx);
+		netif_napi_del_locked(&ns->rq[idx]->napi);
 	}
 
 	ns->rq[idx] = qmem->rq;
-	napi_enable(&ns->rq[idx]->napi);
+	napi_enable_locked(&ns->rq[idx]->napi);
 
 	return 0;
 }
@@ -736,7 +747,9 @@ static int nsim_queue_stop(struct net_device *dev, void *per_queue_mem, int idx)
 	struct nsim_queue_mem *qmem = per_queue_mem;
 	struct netdevsim *ns = netdev_priv(dev);
 
-	napi_disable(&ns->rq[idx]->napi);
+	netdev_assert_locked(dev);
+
+	napi_disable_locked(&ns->rq[idx]->napi);
 
 	if (ns->rq_reset_mode == 1) {
 		qmem->pp = ns->rq[idx]->page_pool;
@@ -775,7 +788,7 @@ nsim_qreset_write(struct file *file, const char __user *data,
 	if (ret != 2)
 		return -EINVAL;
 
-	rtnl_lock();
+	netdev_lock(ns->netdev);
 	if (queue >= ns->netdev->real_num_rx_queues) {
 		ret = -EINVAL;
 		goto exit_unlock;
@@ -789,7 +802,7 @@ nsim_qreset_write(struct file *file, const char __user *data,
 
 	ret = count;
 exit_unlock:
-	rtnl_unlock();
+	netdev_unlock(ns->netdev);
 	return ret;
 }