Merge tag 'for-linus-6.10-1' of https://github.com/cminyard/linux-ipmi

Pull ipmi updates from Corey Minyard:
 "Mostly updates for deprecated interfaces, platform.remove and
  converting from a tasklet to a BH workqueue.

  Also use HAS_IOPORT for disabling inb()/outb()"

* tag 'for-linus-6.10-1' of https://github.com/cminyard/linux-ipmi:
  ipmi: kcs_bmc_npcm7xx: Convert to platform remove callback returning void
  ipmi: kcs_bmc_aspeed: Convert to platform remove callback returning void
  ipmi: ipmi_ssif: Convert to platform remove callback returning void
  ipmi: ipmi_si_platform: Convert to platform remove callback returning void
  ipmi: ipmi_powernv: Convert to platform remove callback returning void
  ipmi: bt-bmc: Convert to platform remove callback returning void
  char: ipmi: handle HAS_IOPORT dependencies
  ipmi: Convert from tasklet to BH workqueue

Author: torvalds

drivers/char/ipmi/Makefile

@@ -5,13 +5,10 @@
 
 ipmi_si-y := ipmi_si_intf.o ipmi_kcs_sm.o ipmi_smic_sm.o ipmi_bt_sm.o \
 	ipmi_si_hotmod.o ipmi_si_hardcode.o ipmi_si_platform.o \
-	ipmi_si_port_io.o ipmi_si_mem_io.o
-ifdef CONFIG_PCI
-ipmi_si-y += ipmi_si_pci.o
-endif
-ifdef CONFIG_PARISC
-ipmi_si-y += ipmi_si_parisc.o
-endif
+	ipmi_si_mem_io.o
+ipmi_si-$(CONFIG_HAS_IOPORT) += ipmi_si_port_io.o
+ipmi_si-$(CONFIG_PCI) += ipmi_si_pci.o
+ipmi_si-$(CONFIG_PARISC) += ipmi_si_parisc.o
 
 obj-$(CONFIG_IPMI_HANDLER) += ipmi_msghandler.o
 obj-$(CONFIG_IPMI_DEVICE_INTERFACE) += ipmi_devintf.o

drivers/char/ipmi/bt-bmc.c

@@ -459,14 +459,13 @@ static int bt_bmc_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int bt_bmc_remove(struct platform_device *pdev)
+static void bt_bmc_remove(struct platform_device *pdev)
 {
 	struct bt_bmc *bt_bmc = dev_get_drvdata(&pdev->dev);
 
 	misc_deregister(&bt_bmc->miscdev);
 	if (bt_bmc->irq < 0)
 		del_timer_sync(&bt_bmc->poll_timer);
-	return 0;
 }
 
 static const struct of_device_id bt_bmc_match[] = {
@@ -482,7 +481,7 @@ static struct platform_driver bt_bmc_driver = {
 		.of_match_table = bt_bmc_match,
 	},
 	.probe = bt_bmc_probe,
-	.remove = bt_bmc_remove,
+	.remove_new = bt_bmc_remove,
 };
 
 module_platform_driver(bt_bmc_driver);

drivers/char/ipmi/ipmi_msghandler.c

@@ -41,7 +41,7 @@
 
 static struct ipmi_recv_msg *ipmi_alloc_recv_msg(void);
 static int ipmi_init_msghandler(void);
-static void smi_recv_tasklet(struct tasklet_struct *t);
+static void smi_recv_work(struct work_struct *t);
 static void handle_new_recv_msgs(struct ipmi_smi *intf);
 static void need_waiter(struct ipmi_smi *intf);
 static int handle_one_recv_msg(struct ipmi_smi *intf,
@@ -498,13 +498,13 @@ struct ipmi_smi {
 	/*
 	 * Messages queued for delivery.  If delivery fails (out of memory
 	 * for instance), They will stay in here to be processed later in a
-	 * periodic timer interrupt.  The tasklet is for handling received
+	 * periodic timer interrupt.  The workqueue is for handling received
 	 * messages directly from the handler.
 	 */
 	spinlock_t       waiting_rcv_msgs_lock;
 	struct list_head waiting_rcv_msgs;
 	atomic_t	 watchdog_pretimeouts_to_deliver;
-	struct tasklet_struct recv_tasklet;
+	struct work_struct recv_work;
 
 	spinlock_t             xmit_msgs_lock;
 	struct list_head       xmit_msgs;
@@ -704,7 +704,7 @@ static void clean_up_interface_data(struct ipmi_smi *intf)
 	struct cmd_rcvr  *rcvr, *rcvr2;
 	struct list_head list;
 
-	tasklet_kill(&intf->recv_tasklet);
+	cancel_work_sync(&intf->recv_work);
 
 	free_smi_msg_list(&intf->waiting_rcv_msgs);
 	free_recv_msg_list(&intf->waiting_events);
@@ -1319,7 +1319,7 @@ static void free_user(struct kref *ref)
 {
 	struct ipmi_user *user = container_of(ref, struct ipmi_user, refcount);
 
-	/* SRCU cleanup must happen in task context. */
+	/* SRCU cleanup must happen in workqueue context. */
 	queue_work(remove_work_wq, &user->remove_work);
 }
 
@@ -3605,8 +3605,7 @@ int ipmi_add_smi(struct module         *owner,
 	intf->curr_seq = 0;
 	spin_lock_init(&intf->waiting_rcv_msgs_lock);
 	INIT_LIST_HEAD(&intf->waiting_rcv_msgs);
-	tasklet_setup(&intf->recv_tasklet,
-		     smi_recv_tasklet);
+	INIT_WORK(&intf->recv_work, smi_recv_work);
 	atomic_set(&intf->watchdog_pretimeouts_to_deliver, 0);
 	spin_lock_init(&intf->xmit_msgs_lock);
 	INIT_LIST_HEAD(&intf->xmit_msgs);
@@ -4779,7 +4778,7 @@ static void handle_new_recv_msgs(struct ipmi_smi *intf)
 			 * To preserve message order, quit if we
 			 * can't handle a message.  Add the message
 			 * back at the head, this is safe because this
-			 * tasklet is the only thing that pulls the
+			 * workqueue is the only thing that pulls the
 			 * messages.
 			 */
 			list_add(&smi_msg->link, &intf->waiting_rcv_msgs);
@@ -4812,10 +4811,10 @@ static void handle_new_recv_msgs(struct ipmi_smi *intf)
 	}
 }
 
-static void smi_recv_tasklet(struct tasklet_struct *t)
+static void smi_recv_work(struct work_struct *t)
 {
 	unsigned long flags = 0; /* keep us warning-free. */
-	struct ipmi_smi *intf = from_tasklet(intf, t, recv_tasklet);
+	struct ipmi_smi *intf = from_work(intf, t, recv_work);
 	int run_to_completion = intf->run_to_completion;
 	struct ipmi_smi_msg *newmsg = NULL;
 
@@ -4866,7 +4865,7 @@ void ipmi_smi_msg_received(struct ipmi_smi *intf,
 
 	/*
 	 * To preserve message order, we keep a queue and deliver from
-	 * a tasklet.
+	 * a workqueue.
 	 */
 	if (!run_to_completion)
 		spin_lock_irqsave(&intf->waiting_rcv_msgs_lock, flags);
@@ -4887,9 +4886,9 @@ void ipmi_smi_msg_received(struct ipmi_smi *intf,
 		spin_unlock_irqrestore(&intf->xmit_msgs_lock, flags);
 
 	if (run_to_completion)
-		smi_recv_tasklet(&intf->recv_tasklet);
+		smi_recv_work(&intf->recv_work);
 	else
-		tasklet_schedule(&intf->recv_tasklet);
+		queue_work(system_bh_wq, &intf->recv_work);
 }
 EXPORT_SYMBOL(ipmi_smi_msg_received);
 
@@ -4899,7 +4898,7 @@ void ipmi_smi_watchdog_pretimeout(struct ipmi_smi *intf)
 		return;
 
 	atomic_set(&intf->watchdog_pretimeouts_to_deliver, 1);
-	tasklet_schedule(&intf->recv_tasklet);
+	queue_work(system_bh_wq, &intf->recv_work);
 }
 EXPORT_SYMBOL(ipmi_smi_watchdog_pretimeout);
 
@@ -5068,7 +5067,7 @@ static bool ipmi_timeout_handler(struct ipmi_smi *intf,
 				       flags);
 	}
 
-	tasklet_schedule(&intf->recv_tasklet);
+	queue_work(system_bh_wq, &intf->recv_work);
 
 	return need_timer;
 }

drivers/char/ipmi/ipmi_powernv.c

@@ -281,15 +281,13 @@ static int ipmi_powernv_probe(struct platform_device *pdev)
 	return rc;
 }
 
-static int ipmi_powernv_remove(struct platform_device *pdev)
+static void ipmi_powernv_remove(struct platform_device *pdev)
 {
 	struct ipmi_smi_powernv *smi = dev_get_drvdata(&pdev->dev);
 
 	ipmi_unregister_smi(smi->intf);
 	free_irq(smi->irq, smi);
 	irq_dispose_mapping(smi->irq);
-
-	return 0;
 }
 
 static const struct of_device_id ipmi_powernv_match[] = {
@@ -304,7 +302,7 @@ static struct platform_driver powernv_ipmi_driver = {
 		.of_match_table	= ipmi_powernv_match,
 	},
 	.probe	= ipmi_powernv_probe,
-	.remove	= ipmi_powernv_remove,
+	.remove_new = ipmi_powernv_remove,
 };
 
 

drivers/char/ipmi/ipmi_si_intf.c

@@ -1882,7 +1882,8 @@ int ipmi_si_add_smi(struct si_sm_io *io)
 	}
 
 	if (!io->io_setup) {
-		if (io->addr_space == IPMI_IO_ADDR_SPACE) {
+		if (IS_ENABLED(CONFIG_HAS_IOPORT) &&
+		    io->addr_space == IPMI_IO_ADDR_SPACE) {
 			io->io_setup = ipmi_si_port_setup;
 		} else if (io->addr_space == IPMI_MEM_ADDR_SPACE) {
 			io->io_setup = ipmi_si_mem_setup;

drivers/char/ipmi/ipmi_si_pci.c

@@ -97,6 +97,9 @@ static int ipmi_pci_probe(struct pci_dev *pdev,
 	}
 
 	if (pci_resource_flags(pdev, 0) & IORESOURCE_IO) {
+		if (!IS_ENABLED(CONFIG_HAS_IOPORT))
+			return -ENXIO;
+
 		io.addr_space = IPMI_IO_ADDR_SPACE;
 		io.io_setup = ipmi_si_port_setup;
 	} else {

drivers/char/ipmi/ipmi_si_platform.c

@@ -405,11 +405,9 @@ static int ipmi_probe(struct platform_device *pdev)
 	return platform_ipmi_probe(pdev);
 }
 
-static int ipmi_remove(struct platform_device *pdev)
+static void ipmi_remove(struct platform_device *pdev)
 {
 	ipmi_si_remove_by_dev(&pdev->dev);
-
-	return 0;
 }
 
 static int pdev_match_name(struct device *dev, const void *data)
@@ -447,7 +445,7 @@ struct platform_driver ipmi_platform_driver = {
 		.acpi_match_table = ACPI_PTR(acpi_ipmi_match),
 	},
 	.probe		= ipmi_probe,
-	.remove		= ipmi_remove,
+	.remove_new	= ipmi_remove,
 	.id_table       = si_plat_ids
 };
 

drivers/char/ipmi/ipmi_ssif.c

@@ -2071,15 +2071,14 @@ static int ssif_platform_probe(struct platform_device *dev)
 	return dmi_ipmi_probe(dev);
 }
 
-static int ssif_platform_remove(struct platform_device *dev)
+static void ssif_platform_remove(struct platform_device *dev)
 {
 	struct ssif_addr_info *addr_info = dev_get_drvdata(&dev->dev);
 
 	mutex_lock(&ssif_infos_mutex);
 	list_del(&addr_info->link);
 	kfree(addr_info);
 	mutex_unlock(&ssif_infos_mutex);
-	return 0;
 }
 
 static const struct platform_device_id ssif_plat_ids[] = {
@@ -2092,7 +2091,7 @@ static struct platform_driver ipmi_driver = {
 		.name = DEVICE_NAME,
 	},
 	.probe		= ssif_platform_probe,
-	.remove		= ssif_platform_remove,
+	.remove_new	= ssif_platform_remove,
 	.id_table       = ssif_plat_ids
 };
 

drivers/char/ipmi/kcs_bmc_aspeed.c

@@ -641,7 +641,7 @@ static int aspeed_kcs_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int aspeed_kcs_remove(struct platform_device *pdev)
+static void aspeed_kcs_remove(struct platform_device *pdev)
 {
 	struct aspeed_kcs_bmc *priv = platform_get_drvdata(pdev);
 	struct kcs_bmc_device *kcs_bmc = &priv->kcs_bmc;
@@ -656,8 +656,6 @@ static int aspeed_kcs_remove(struct platform_device *pdev)
 	priv->obe.remove = true;
 	spin_unlock_irq(&priv->obe.lock);
 	del_timer_sync(&priv->obe.timer);
-
-	return 0;
 }
 
 static const struct of_device_id ast_kcs_bmc_match[] = {
@@ -674,7 +672,7 @@ static struct platform_driver ast_kcs_bmc_driver = {
 		.of_match_table = ast_kcs_bmc_match,
 	},
 	.probe  = aspeed_kcs_probe,
-	.remove = aspeed_kcs_remove,
+	.remove_new = aspeed_kcs_remove,
 };
 module_platform_driver(ast_kcs_bmc_driver);
 

drivers/char/ipmi/kcs_bmc_npcm7xx.c

@@ -218,7 +218,7 @@ static int npcm7xx_kcs_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static int npcm7xx_kcs_remove(struct platform_device *pdev)
+static void npcm7xx_kcs_remove(struct platform_device *pdev)
 {
 	struct npcm7xx_kcs_bmc *priv = platform_get_drvdata(pdev);
 	struct kcs_bmc_device *kcs_bmc = &priv->kcs_bmc;
@@ -227,8 +227,6 @@ static int npcm7xx_kcs_remove(struct platform_device *pdev)
 
 	npcm7xx_kcs_enable_channel(kcs_bmc, false);
 	npcm7xx_kcs_irq_mask_update(kcs_bmc, (KCS_BMC_EVENT_TYPE_IBF | KCS_BMC_EVENT_TYPE_OBE), 0);
-
-	return 0;
 }
 
 static const struct of_device_id npcm_kcs_bmc_match[] = {
@@ -243,7 +241,7 @@ static struct platform_driver npcm_kcs_bmc_driver = {
 		.of_match_table	= npcm_kcs_bmc_match,
 	},
 	.probe	= npcm7xx_kcs_probe,
-	.remove	= npcm7xx_kcs_remove,
+	.remove_new = npcm7xx_kcs_remove,
 };
 module_platform_driver(npcm_kcs_bmc_driver);