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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/drivers/infiniband/hw/i40iw/i40iw_utils.c
..
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@@ -174,10 +174,14 @@
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 		rcu_read_lock();
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 		in = __in_dev_get_rcu(upper_dev);
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176
 
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-		if (!in->ifa_list)
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-			local_ipaddr = 0;
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-		else
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-			local_ipaddr = ntohl(in->ifa_list->ifa_address);
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+		local_ipaddr = 0;
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+		if (in) {
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+			struct in_ifaddr *ifa;
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+
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+			ifa = rcu_dereference(in->ifa_list);
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+			if (ifa)
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+				local_ipaddr = ntohl(ifa->ifa_address);
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+		}
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185
 
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 		rcu_read_unlock();
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 	} else {
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@@ -186,9 +190,8 @@
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 	switch (event) {
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 	case NETDEV_DOWN:
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 		action = I40IW_ARP_DELETE;
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-		/* Fall through */
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+		fallthrough;
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 	case NETDEV_UP:
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-		/* Fall through */
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 	case NETDEV_CHANGEADDR:
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196
 
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 		/* Just skip if no need to handle ARP cache */
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@@ -243,9 +246,8 @@
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 	switch (event) {
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 	case NETDEV_DOWN:
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 		action = I40IW_ARP_DELETE;
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-		/* Fall through */
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+		fallthrough;
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 	case NETDEV_UP:
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-		/* Fall through */
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 	case NETDEV_CHANGEADDR:
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 		i40iw_manage_arp_cache(iwdev,
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 				       netdev->dev_addr,
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@@ -340,7 +342,7 @@
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 	switch (event) {
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 	case NETDEV_DOWN:
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 		iwdev->iw_status = 0;
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-		/* Fall through */
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+		fallthrough;
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 	case NETDEV_UP:
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 		i40iw_port_ibevent(iwdev);
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 		break;
..
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@@ -476,25 +478,6 @@
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 }
477
479
 
478
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 /**
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- * i40iw_free_qp - callback after destroy cqp completes
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- * @cqp_request: cqp request for destroy qp
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- * @num: not used
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- */
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-static void i40iw_free_qp(struct i40iw_cqp_request *cqp_request, u32 num)
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-{
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-	struct i40iw_sc_qp *qp = (struct i40iw_sc_qp *)cqp_request->param;
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-	struct i40iw_qp *iwqp = (struct i40iw_qp *)qp->back_qp;
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-	struct i40iw_device *iwdev;
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-	u32 qp_num = iwqp->ibqp.qp_num;
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-
490
-	iwdev = iwqp->iwdev;
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-
492
-	i40iw_rem_pdusecount(iwqp->iwpd, iwdev);
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-	i40iw_free_qp_resources(iwdev, iwqp, qp_num);
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-	i40iw_rem_devusecount(iwdev);
495
-}
496
-
497
-/**
498
481
  * i40iw_wait_event - wait for completion
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482
  * @iwdev: iwarp device
500
483
  * @cqp_request: cqp request to wait
..
..
@@ -611,30 +594,26 @@
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 	if (!atomic_dec_and_test(&iwpd->usecount))
612
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 		return;
613
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 	i40iw_free_resource(iwdev, iwdev->allocated_pds, iwpd->sc_pd.pd_id);
614
-	kfree(iwpd);
615
597
 }
616
598
 
617
599
 /**
618
- * i40iw_add_ref - add refcount for qp
600
+ * i40iw_qp_add_ref - add refcount for qp
619
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  * @ibqp: iqarp qp
620
602
  */
621
-void i40iw_add_ref(struct ib_qp *ibqp)
603
+void i40iw_qp_add_ref(struct ib_qp *ibqp)
622
604
 {
623
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 	struct i40iw_qp *iwqp = (struct i40iw_qp *)ibqp;
624
606
 
625
-	atomic_inc(&iwqp->refcount);
607
+	refcount_inc(&iwqp->refcount);
626
608
 }
627
609
 
628
610
 /**
629
- * i40iw_rem_ref - rem refcount for qp and free if 0
611
+ * i40iw_qp_rem_ref - rem refcount for qp and free if 0
630
612
  * @ibqp: iqarp qp
631
613
  */
632
-void i40iw_rem_ref(struct ib_qp *ibqp)
614
+void i40iw_qp_rem_ref(struct ib_qp *ibqp)
633
615
 {
634
616
 	struct i40iw_qp *iwqp;
635
-	enum i40iw_status_code status;
636
-	struct i40iw_cqp_request *cqp_request;
637
-	struct cqp_commands_info *cqp_info;
638
617
 	struct i40iw_device *iwdev;
639
618
 	u32 qp_num;
640
619
 	unsigned long flags;
..
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@@ -642,7 +621,7 @@
642
621
 	iwqp = to_iwqp(ibqp);
643
622
 	iwdev = iwqp->iwdev;
644
623
 	spin_lock_irqsave(&iwdev->qptable_lock, flags);
645
-	if (!atomic_dec_and_test(&iwqp->refcount)) {
624
+	if (!refcount_dec_and_test(&iwqp->refcount)) {
646
625
 		spin_unlock_irqrestore(&iwdev->qptable_lock, flags);
647
626
 		return;
648
627
 	}
..
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@@ -650,25 +629,8 @@
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 	qp_num = iwqp->ibqp.qp_num;
651
630
 	iwdev->qp_table[qp_num] = NULL;
652
631
 	spin_unlock_irqrestore(&iwdev->qptable_lock, flags);
653
-	cqp_request = i40iw_get_cqp_request(&iwdev->cqp, false);
654
-	if (!cqp_request)
655
-		return;
632
+	complete(&iwqp->free_qp);
656
633
 
657
-	cqp_request->callback_fcn = i40iw_free_qp;
658
-	cqp_request->param = (void *)&iwqp->sc_qp;
659
-	cqp_info = &cqp_request->info;
660
-	cqp_info->cqp_cmd = OP_QP_DESTROY;
661
-	cqp_info->post_sq = 1;
662
-	cqp_info->in.u.qp_destroy.qp = &iwqp->sc_qp;
663
-	cqp_info->in.u.qp_destroy.scratch = (uintptr_t)cqp_request;
664
-	cqp_info->in.u.qp_destroy.remove_hash_idx = true;
665
-	status = i40iw_handle_cqp_op(iwdev, cqp_request);
666
-	if (!status)
667
-		return;
668
-
669
-	i40iw_rem_pdusecount(iwqp->iwpd, iwdev);
670
-	i40iw_free_qp_resources(iwdev, iwqp, qp_num);
671
-	i40iw_rem_devusecount(iwdev);
672
634
 }
673
635
 
674
636
 /**
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@@ -750,13 +712,13 @@
750
712
 					      u64 size,
751
713
 					      u32 alignment)
752
714
 {
753
-	struct pci_dev *pcidev = (struct pci_dev *)hw->dev_context;
715
+	struct pci_dev *pcidev = hw->pcidev;
754
716
 
755
717
 	if (!mem)
756
718
 		return I40IW_ERR_PARAM;
757
719
 	mem->size = ALIGN(size, alignment);
758
-	mem->va = dma_zalloc_coherent(&pcidev->dev, mem->size,
759
-				      (dma_addr_t *)&mem->pa, GFP_KERNEL);
720
+	mem->va = dma_alloc_coherent(&pcidev->dev, mem->size,
721
+				     (dma_addr_t *)&mem->pa, GFP_KERNEL);
760
722
 	if (!mem->va)
761
723
 		return I40IW_ERR_NO_MEMORY;
762
724
 	return 0;
..
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@@ -769,7 +731,7 @@
769
731
  */
770
732
 void i40iw_free_dma_mem(struct i40iw_hw *hw, struct i40iw_dma_mem *mem)
771
733
 {
772
-	struct pci_dev *pcidev = (struct pci_dev *)hw->dev_context;
734
+	struct pci_dev *pcidev = hw->pcidev;
773
735
 
774
736
 	if (!mem || !mem->va)
775
737
 		return;
..
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@@ -935,7 +897,7 @@
935
897
 	struct i40iw_sc_qp *qp = (struct i40iw_sc_qp *)&iwqp->sc_qp;
936
898
 
937
899
 	i40iw_terminate_done(qp, 1);
938
-	i40iw_rem_ref(&iwqp->ibqp);
900
+	i40iw_qp_rem_ref(&iwqp->ibqp);
939
901
 }
940
902
 
941
903
 /**
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..
@@ -947,7 +909,7 @@
947
909
 	struct i40iw_qp *iwqp;
948
910
 
949
911
 	iwqp = (struct i40iw_qp *)qp->back_qp;
950
-	i40iw_add_ref(&iwqp->ibqp);
912
+	i40iw_qp_add_ref(&iwqp->ibqp);
951
913
 	timer_setup(&iwqp->terminate_timer, i40iw_terminate_timeout, 0);
952
914
 	iwqp->terminate_timer.expires = jiffies + HZ;
953
915
 	add_timer(&iwqp->terminate_timer);
..
..
@@ -963,7 +925,7 @@
963
925
 
964
926
 	iwqp = (struct i40iw_qp *)qp->back_qp;
965
927
 	if (del_timer(&iwqp->terminate_timer))
966
-		i40iw_rem_ref(&iwqp->ibqp);
928
+		i40iw_qp_rem_ref(&iwqp->ibqp);
967
929
 }
968
930
 
969
931
 /**