Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from David Miller:

  1) Fix jmp to 1st instruction in x64 JIT, from Alexei Starovoitov.

  2) Severl kTLS fixes in mlx5 driver, from Tariq Toukan.

  3) Fix severe performance regression due to lack of SKB coalescing of
     fragments during local delivery, from Guillaume Nault.

  4) Error path memory leak in sch_taprio, from Ivan Khoronzhuk.

  5) Fix batched events in skbedit packet action, from Roman Mashak.

  6) Propagate VLAN TX offload to hw_enc_features in bond and team
     drivers, from Yue Haibing.

  7) RXRPC local endpoint refcounting fix and read after free in
     rxrpc_queue_local(), from David Howells.

  8) Fix endian bug in ibmveth multicast list handling, from Thomas
     Falcon.

  9) Oops, make nlmsg_parse() wrap around the correct function,
     __nlmsg_parse not __nla_parse(). Fix from David Ahern.

 10) Memleak in sctp_scend_reset_streams(), fro Zheng Bin.

 11) Fix memory leak in cxgb4, from Wenwen Wang.

 12) Yet another race in AF_PACKET, from Eric Dumazet.

 13) Fix false detection of retransmit failures in tipc, from Tuong
     Lien.

 14) Use after free in ravb_tstamp_skb, from Tho Vu.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (101 commits)
  ravb: Fix use-after-free ravb_tstamp_skb
  netfilter: nf_tables: map basechain priority to hardware priority
  net: sched: use major priority number as hardware priority
  wimax/i2400m: fix a memory leak bug
  net: cavium: fix driver name
  ibmvnic: Unmap DMA address of TX descriptor buffers after use
  bnxt_en: Fix to include flow direction in L2 key
  bnxt_en: Use correct src_fid to determine direction of the flow
  bnxt_en: Suppress HWRM errors for HWRM_NVM_GET_VARIABLE command
  bnxt_en: Fix handling FRAG_ERR when NVM_INSTALL_UPDATE cmd fails
  bnxt_en: Improve RX doorbell sequence.
  bnxt_en: Fix VNIC clearing logic for 57500 chips.
  net: kalmia: fix memory leaks
  cx82310_eth: fix a memory leak bug
  bnx2x: Fix VF's VLAN reconfiguration in reload.
  Bluetooth: Add debug setting for changing minimum encryption key size
  tipc: fix false detection of retransmit failures
  lan78xx: Fix memory leaks
  MAINTAINERS: r8169: Update path to the driver
  MAINTAINERS: PHY LIBRARY: Update files in the record
  ...

1 files changed, 55 insertions, 83 deletions

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
index 63b07edd9d81..38bb1cfe4e8c 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_ptp.c
@@ -29,7 +29,7 @@
 
 struct mlxsw_sp_ptp_state {
 	struct mlxsw_sp *mlxsw_sp;
-	struct rhashtable unmatched_ht;
+	struct rhltable unmatched_ht;
 	spinlock_t unmatched_lock; /* protects the HT */
 	struct delayed_work ht_gc_dw;
 	u32 gc_cycle;
@@ -45,7 +45,7 @@ struct mlxsw_sp1_ptp_key {
 
 struct mlxsw_sp1_ptp_unmatched {
 	struct mlxsw_sp1_ptp_key key;
-	struct rhash_head ht_node;
+	struct rhlist_head ht_node;
 	struct rcu_head rcu;
 	struct sk_buff *skb;
 	u64 timestamp;
@@ -359,7 +359,7 @@ static int mlxsw_sp_ptp_parse(struct sk_buff *skb,
 /* Returns NULL on successful insertion, a pointer on conflict, or an ERR_PTR on
  * error.
  */
-static struct mlxsw_sp1_ptp_unmatched *
+static int
 mlxsw_sp1_ptp_unmatched_save(struct mlxsw_sp *mlxsw_sp,
 			     struct mlxsw_sp1_ptp_key key,
 			     struct sk_buff *skb,
@@ -368,41 +368,51 @@ mlxsw_sp1_ptp_unmatched_save(struct mlxsw_sp *mlxsw_sp,
 	int cycles = MLXSW_SP1_PTP_HT_GC_TIMEOUT / MLXSW_SP1_PTP_HT_GC_INTERVAL;
 	struct mlxsw_sp_ptp_state *ptp_state = mlxsw_sp->ptp_state;
 	struct mlxsw_sp1_ptp_unmatched *unmatched;
-	struct mlxsw_sp1_ptp_unmatched *conflict;
+	int err;
 
 	unmatched = kzalloc(sizeof(*unmatched), GFP_ATOMIC);
 	if (!unmatched)
-		return ERR_PTR(-ENOMEM);
+		return -ENOMEM;
 
 	unmatched->key = key;
 	unmatched->skb = skb;
 	unmatched->timestamp = timestamp;
 	unmatched->gc_cycle = mlxsw_sp->ptp_state->gc_cycle + cycles;
 
-	conflict = rhashtable_lookup_get_insert_fast(&ptp_state->unmatched_ht,
-					    &unmatched->ht_node,
-					    mlxsw_sp1_ptp_unmatched_ht_params);
-	if (conflict)
+	err = rhltable_insert(&ptp_state->unmatched_ht, &unmatched->ht_node,
+			      mlxsw_sp1_ptp_unmatched_ht_params);
+	if (err)
 		kfree(unmatched);
 
-	return conflict;
+	return err;
 }
 
 static struct mlxsw_sp1_ptp_unmatched *
 mlxsw_sp1_ptp_unmatched_lookup(struct mlxsw_sp *mlxsw_sp,
-			       struct mlxsw_sp1_ptp_key key)
+			       struct mlxsw_sp1_ptp_key key, int *p_length)
 {
-	return rhashtable_lookup(&mlxsw_sp->ptp_state->unmatched_ht, &key,
-				 mlxsw_sp1_ptp_unmatched_ht_params);
+	struct mlxsw_sp1_ptp_unmatched *unmatched, *last = NULL;
+	struct rhlist_head *tmp, *list;
+	int length = 0;
+
+	list = rhltable_lookup(&mlxsw_sp->ptp_state->unmatched_ht, &key,
+			       mlxsw_sp1_ptp_unmatched_ht_params);
+	rhl_for_each_entry_rcu(unmatched, tmp, list, ht_node) {
+		last = unmatched;
+		length++;
+	}
+
+	*p_length = length;
+	return last;
 }
 
 static int
 mlxsw_sp1_ptp_unmatched_remove(struct mlxsw_sp *mlxsw_sp,
 			       struct mlxsw_sp1_ptp_unmatched *unmatched)
 {
-	return rhashtable_remove_fast(&mlxsw_sp->ptp_state->unmatched_ht,
-				      &unmatched->ht_node,
-				      mlxsw_sp1_ptp_unmatched_ht_params);
+	return rhltable_remove(&mlxsw_sp->ptp_state->unmatched_ht,
+			       &unmatched->ht_node,
+			       mlxsw_sp1_ptp_unmatched_ht_params);
 }
 
 /* This function is called in the following scenarios:
@@ -489,75 +499,38 @@ static void mlxsw_sp1_ptp_got_piece(struct mlxsw_sp *mlxsw_sp,
 				    struct mlxsw_sp1_ptp_key key,
 				    struct sk_buff *skb, u64 timestamp)
 {
-	struct mlxsw_sp1_ptp_unmatched *unmatched, *conflict;
+	struct mlxsw_sp1_ptp_unmatched *unmatched;
+	int length;
 	int err;
 
 	rcu_read_lock();
 
-	unmatched = mlxsw_sp1_ptp_unmatched_lookup(mlxsw_sp, key);
-
 	spin_lock(&mlxsw_sp->ptp_state->unmatched_lock);
 
-	if (unmatched) {
-		/* There was an unmatched entry when we looked, but it may have
-		 * been removed before we took the lock.
-		 */
-		err = mlxsw_sp1_ptp_unmatched_remove(mlxsw_sp, unmatched);
-		if (err)
-			unmatched = NULL;
-	}
-
-	if (!unmatched) {
-		/* We have no unmatched entry, but one may have been added after
-		 * we looked, but before we took the lock.
-		 */
-		unmatched = mlxsw_sp1_ptp_unmatched_save(mlxsw_sp, key,
-							 skb, timestamp);
-		if (IS_ERR(unmatched)) {
-			if (skb)
-				mlxsw_sp1_ptp_packet_finish(mlxsw_sp, skb,
-							    key.local_port,
-							    key.ingress, NULL);
-			unmatched = NULL;
-		} else if (unmatched) {
-			/* Save just told us, under lock, that the entry is
-			 * there, so this has to work.
-			 */
-			err = mlxsw_sp1_ptp_unmatched_remove(mlxsw_sp,
-							     unmatched);
-			WARN_ON_ONCE(err);
-		}
-	}
-
-	/* If unmatched is non-NULL here, it comes either from the lookup, or
-	 * from the save attempt above. In either case the entry was removed
-	 * from the hash table. If unmatched is NULL, a new unmatched entry was
-	 * added to the hash table, and there was no conflict.
-	 */
-
+	unmatched = mlxsw_sp1_ptp_unmatched_lookup(mlxsw_sp, key, &length);
 	if (skb && unmatched && unmatched->timestamp) {
 		unmatched->skb = skb;
 	} else if (timestamp && unmatched && unmatched->skb) {
 		unmatched->timestamp = timestamp;
-	} else if (unmatched) {
-		/* unmatched holds an older entry of the same type: either an
-		 * skb if we are handling skb, or a timestamp if we are handling
-		 * timestamp. We can't match that up, so save what we have.
+	} else {
+		/* Either there is no entry to match, or one that is there is
+		 * incompatible.
 		 */
-		conflict = mlxsw_sp1_ptp_unmatched_save(mlxsw_sp, key,
-							skb, timestamp);
-		if (IS_ERR(conflict)) {
-			if (skb)
-				mlxsw_sp1_ptp_packet_finish(mlxsw_sp, skb,
-							    key.local_port,
-							    key.ingress, NULL);
-		} else {
-			/* Above, we removed an object with this key from the
-			 * hash table, under lock, so conflict can not be a
-			 * valid pointer.
-			 */
-			WARN_ON_ONCE(conflict);
-		}
+		if (length < 100)
+			err = mlxsw_sp1_ptp_unmatched_save(mlxsw_sp, key,
+							   skb, timestamp);
+		else
+			err = -E2BIG;
+		if (err && skb)
+			mlxsw_sp1_ptp_packet_finish(mlxsw_sp, skb,
+						    key.local_port,
+						    key.ingress, NULL);
+		unmatched = NULL;
+	}
+
+	if (unmatched) {
+		err = mlxsw_sp1_ptp_unmatched_remove(mlxsw_sp, unmatched);
+		WARN_ON_ONCE(err);
 	}
 
 	spin_unlock(&mlxsw_sp->ptp_state->unmatched_lock);
@@ -669,9 +642,8 @@ mlxsw_sp1_ptp_ht_gc_collect(struct mlxsw_sp_ptp_state *ptp_state,
 	local_bh_disable();
 
 	spin_lock(&ptp_state->unmatched_lock);
-	err = rhashtable_remove_fast(&ptp_state->unmatched_ht,
-				     &unmatched->ht_node,
-				     mlxsw_sp1_ptp_unmatched_ht_params);
+	err = rhltable_remove(&ptp_state->unmatched_ht, &unmatched->ht_node,
+			      mlxsw_sp1_ptp_unmatched_ht_params);
 	spin_unlock(&ptp_state->unmatched_lock);
 
 	if (err)
@@ -702,7 +674,7 @@ static void mlxsw_sp1_ptp_ht_gc(struct work_struct *work)
 	ptp_state = container_of(dwork, struct mlxsw_sp_ptp_state, ht_gc_dw);
 	gc_cycle = ptp_state->gc_cycle++;
 
-	rhashtable_walk_enter(&ptp_state->unmatched_ht, &iter);
+	rhltable_walk_enter(&ptp_state->unmatched_ht, &iter);
 	rhashtable_walk_start(&iter);
 	while ((obj = rhashtable_walk_next(&iter))) {
 		if (IS_ERR(obj))
@@ -855,8 +827,8 @@ struct mlxsw_sp_ptp_state *mlxsw_sp1_ptp_init(struct mlxsw_sp *mlxsw_sp)
 
 	spin_lock_init(&ptp_state->unmatched_lock);
 
-	err = rhashtable_init(&ptp_state->unmatched_ht,
-			      &mlxsw_sp1_ptp_unmatched_ht_params);
+	err = rhltable_init(&ptp_state->unmatched_ht,
+			    &mlxsw_sp1_ptp_unmatched_ht_params);
 	if (err)
 		goto err_hashtable_init;
 
@@ -891,7 +863,7 @@ err_fifo_clr:
 err_mtptpt1_set:
 	mlxsw_sp_ptp_mtptpt_set(mlxsw_sp, MLXSW_REG_MTPTPT_TRAP_ID_PTP0, 0);
 err_mtptpt_set:
-	rhashtable_destroy(&ptp_state->unmatched_ht);
+	rhltable_destroy(&ptp_state->unmatched_ht);
 err_hashtable_init:
 	kfree(ptp_state);
 	return ERR_PTR(err);
@@ -906,8 +878,8 @@ void mlxsw_sp1_ptp_fini(struct mlxsw_sp_ptp_state *ptp_state)
 	mlxsw_sp1_ptp_set_fifo_clr_on_trap(mlxsw_sp, false);
 	mlxsw_sp_ptp_mtptpt_set(mlxsw_sp, MLXSW_REG_MTPTPT_TRAP_ID_PTP1, 0);
 	mlxsw_sp_ptp_mtptpt_set(mlxsw_sp, MLXSW_REG_MTPTPT_TRAP_ID_PTP0, 0);
-	rhashtable_free_and_destroy(&ptp_state->unmatched_ht,
-				    &mlxsw_sp1_ptp_unmatched_free_fn, NULL);
+	rhltable_free_and_destroy(&ptp_state->unmatched_ht,
+				  &mlxsw_sp1_ptp_unmatched_free_fn, NULL);
 	kfree(ptp_state);
 }