---

yaml
---
r: 56574
b: refs/heads/master
c: b42895d
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: dd504ea16f34a29da4aa933ae7ab917fcfd25fd7
+refs/heads/master: b42895d6fe66995ab101c15d9a59c78474dbf382

trunk/Documentation/feature-removal-schedule.txt

@@ -328,21 +328,20 @@ Who:   Adrian Bunk <bunk@stusta.de>
 
 ---------------------------
 
-What: libata.spindown_compat module parameter
+What: libata spindown skipping and warning
 When: Dec 2008
-Why:  halt(8) synchronizes caches for and spins down libata disks
-      because libata didn't use to spin down disk on system halt
-      (only synchronized caches).
-      Spin down on system halt is now implemented and can be tested
-      using sysfs node /sys/class/scsi_disk/h:c:i:l/manage_start_stop.
+Why:  Some halt(8) implementations synchronize caches for and spin
+      down libata disks because libata didn't use to spin down disk on
+      system halt (only synchronized caches).
+      Spin down on system halt is now implemented.  sysfs node
+      /sys/class/scsi_disk/h:c:i:l/manage_start_stop is present if
+      spin down support is available.
       Because issuing spin down command to an already spun down disk
-      makes some disks spin up just to spin down again, the old
-      behavior needs to be maintained till userspace tool is updated
-      to check the sysfs node and not to spin down disks with the
-      node set to one.
-      This module parameter is to give userspace tool the time to
-      get updated and should be removed after userspace is
-      reasonably updated.
+      makes some disks spin up just to spin down again, libata tracks
+      device spindown status to skip the extra spindown command and
+      warn about it.
+      This is to give userspace tools the time to get updated and will
+      be removed after userspace is reasonably updated.
 Who:  Tejun Heo <htejun@gmail.com>
 
 ---------------------------

trunk/Documentation/networking/netdevices.txt

@@ -49,7 +49,7 @@ dev->hard_start_xmit:
 	for this and return -1 when the spin lock fails. 
 	The locking there should also properly protect against 
 	set_multicast_list
-	Context: BHs disabled
+	Context: Process with BHs disabled or BH (timer).
 	Notes: netif_queue_stopped() is guaranteed false
                Interrupts must be enabled when calling hard_start_xmit.
                 (Interrupts must also be enabled when enabling the BH handler.)

trunk/drivers/ata/libata-core.c

@@ -101,12 +101,6 @@ int libata_noacpi = 1;
 module_param_named(noacpi, libata_noacpi, int, 0444);
 MODULE_PARM_DESC(noacpi, "Disables the use of ACPI in suspend/resume when set");
 
-int ata_spindown_compat = 1;
-module_param_named(spindown_compat, ata_spindown_compat, int, 0644);
-MODULE_PARM_DESC(spindown_compat, "Enable backward compatible spindown "
-		 "behavior.  Will be removed.  More info can be found in "
-		 "Documentation/feature-removal-schedule.txt\n");
-
 MODULE_AUTHOR("Jeff Garzik");
 MODULE_DESCRIPTION("Library module for ATA devices");
 MODULE_LICENSE("GPL");

trunk/drivers/ata/libata-scsi.c

@@ -893,15 +893,15 @@ int ata_scsi_change_queue_depth(struct scsi_device *sdev, int queue_depth)
 	return queue_depth;
 }
 
-/* XXX: for ata_spindown_compat */
+/* XXX: for spindown warning */
 static void ata_delayed_done_timerfn(unsigned long arg)
 {
 	struct scsi_cmnd *scmd = (void *)arg;
 
 	scmd->scsi_done(scmd);
 }
 
-/* XXX: for ata_spindown_compat */
+/* XXX: for spindown warning */
 static void ata_delayed_done(struct scsi_cmnd *scmd)
 {
 	static struct timer_list timer;
@@ -966,8 +966,7 @@ static unsigned int ata_scsi_start_stop_xlat(struct ata_queued_cmd *qc)
 		 * removed.  Read Documentation/feature-removal-schedule.txt
 		 * for more info.
 		 */
-		if (ata_spindown_compat &&
-		    (qc->dev->flags & ATA_DFLAG_SPUNDOWN) &&
+		if ((qc->dev->flags & ATA_DFLAG_SPUNDOWN) &&
 		    (system_state == SYSTEM_HALT ||
 		     system_state == SYSTEM_POWER_OFF)) {
 			static unsigned long warned = 0;
@@ -1395,7 +1394,7 @@ static void ata_scsi_qc_complete(struct ata_queued_cmd *qc)
 		}
 	}
 
-	/* XXX: track spindown state for spindown_compat */
+	/* XXX: track spindown state for spindown skipping and warning */
 	if (unlikely(qc->tf.command == ATA_CMD_STANDBY ||
 		     qc->tf.command == ATA_CMD_STANDBYNOW1))
 		qc->dev->flags |= ATA_DFLAG_SPUNDOWN;

trunk/drivers/ata/libata.h

@@ -58,7 +58,6 @@ extern int atapi_enabled;
 extern int atapi_dmadir;
 extern int libata_fua;
 extern int libata_noacpi;
-extern int ata_spindown_compat;
 extern struct ata_queued_cmd *ata_qc_new_init(struct ata_device *dev);
 extern int ata_build_rw_tf(struct ata_taskfile *tf, struct ata_device *dev,
 			   u64 block, u32 n_block, unsigned int tf_flags,

trunk/drivers/ata/sata_nv.c

@@ -229,7 +229,6 @@ struct nv_host_priv {
 #define NV_ADMA_CHECK_INTR(GCTL, PORT) ((GCTL) & ( 1 << (19 + (12 * (PORT)))))
 
 static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
-static void nv_remove_one (struct pci_dev *pdev);
 #ifdef CONFIG_PM
 static int nv_pci_device_resume(struct pci_dev *pdev);
 #endif
@@ -288,12 +287,6 @@ static const struct pci_device_id nv_pci_tbl[] = {
 	{ PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_SATA), GENERIC },
 	{ PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_SATA2), GENERIC },
 	{ PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_SATA3), GENERIC },
-	{ PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
-		PCI_ANY_ID, PCI_ANY_ID,
-		PCI_CLASS_STORAGE_IDE<<8, 0xffff00, GENERIC },
-	{ PCI_VENDOR_ID_NVIDIA, PCI_ANY_ID,
-		PCI_ANY_ID, PCI_ANY_ID,
-		PCI_CLASS_STORAGE_RAID<<8, 0xffff00, GENERIC },
 
 	{ } /* terminate list */
 };
@@ -306,7 +299,7 @@ static struct pci_driver nv_pci_driver = {
 	.suspend		= ata_pci_device_suspend,
 	.resume			= nv_pci_device_resume,
 #endif
-	.remove			= nv_remove_one,
+	.remove			= ata_pci_remove_one,
 };
 
 static struct scsi_host_template nv_sht = {
@@ -1613,15 +1606,6 @@ static int nv_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
 				 IRQF_SHARED, ppi[0]->sht);
 }
 
-static void nv_remove_one (struct pci_dev *pdev)
-{
-	struct ata_host *host = dev_get_drvdata(&pdev->dev);
-	struct nv_host_priv *hpriv = host->private_data;
-
-	ata_pci_remove_one(pdev);
-	kfree(hpriv);
-}
-
 #ifdef CONFIG_PM
 static int nv_pci_device_resume(struct pci_dev *pdev)
 {

trunk/drivers/ata/sata_via.c

@@ -441,7 +441,7 @@ static int vt6421_prepare_host(struct pci_dev *pdev, struct ata_host **r_host)
 		return -ENOMEM;
 	}
 
-	rc = pcim_iomap_regions(pdev, 0x1f, DRV_NAME);
+	rc = pcim_iomap_regions(pdev, 0x3f, DRV_NAME);
 	if (rc) {
 		dev_printk(KERN_ERR, &pdev->dev, "failed to request/iomap "
 			   "PCI BARs (errno=%d)\n", rc);

trunk/drivers/net/e1000/e1000.h

@@ -333,11 +333,9 @@ struct e1000_adapter {
 	struct e1000_tx_ring test_tx_ring;
 	struct e1000_rx_ring test_rx_ring;
 
-
 	int msg_enable;
-#ifdef CONFIG_PCI_MSI
 	boolean_t have_msi;
-#endif
+
 	/* to not mess up cache alignment, always add to the bottom */
 	boolean_t tso_force;
 	boolean_t smart_power_down;	/* phy smart power down */

trunk/drivers/net/e1000/e1000_main.c

@@ -158,9 +158,7 @@ static struct net_device_stats * e1000_get_stats(struct net_device *netdev);
 static int e1000_change_mtu(struct net_device *netdev, int new_mtu);
 static int e1000_set_mac(struct net_device *netdev, void *p);
 static irqreturn_t e1000_intr(int irq, void *data);
-#ifdef CONFIG_PCI_MSI
 static irqreturn_t e1000_intr_msi(int irq, void *data);
-#endif
 static boolean_t e1000_clean_tx_irq(struct e1000_adapter *adapter,
                                     struct e1000_tx_ring *tx_ring);
 #ifdef CONFIG_E1000_NAPI
@@ -300,31 +298,26 @@ module_exit(e1000_exit_module);
 static int e1000_request_irq(struct e1000_adapter *adapter)
 {
 	struct net_device *netdev = adapter->netdev;
-	int flags, err = 0;
+	void (*handler) = &e1000_intr;
+	int irq_flags = IRQF_SHARED;
+	int err;
 
-	flags = IRQF_SHARED;
-#ifdef CONFIG_PCI_MSI
 	if (adapter->hw.mac_type >= e1000_82571) {
-		adapter->have_msi = TRUE;
-		if ((err = pci_enable_msi(adapter->pdev))) {
-			DPRINTK(PROBE, ERR,
-			 "Unable to allocate MSI interrupt Error: %d\n", err);
-			adapter->have_msi = FALSE;
+		adapter->have_msi = !pci_enable_msi(adapter->pdev);
+		if (adapter->have_msi) {
+			handler = &e1000_intr_msi;
+			irq_flags = 0;
 		}
 	}
-	if (adapter->have_msi) {
-		flags &= ~IRQF_SHARED;
-		err = request_irq(adapter->pdev->irq, &e1000_intr_msi, flags,
-		                  netdev->name, netdev);
-		if (err)
-			DPRINTK(PROBE, ERR,
-			       "Unable to allocate interrupt Error: %d\n", err);
-	} else
-#endif
-	if ((err = request_irq(adapter->pdev->irq, &e1000_intr, flags,
-	                       netdev->name, netdev)))
+
+	err = request_irq(adapter->pdev->irq, handler, irq_flags, netdev->name,
+	                  netdev);
+	if (err) {
+		if (adapter->have_msi)
+			pci_disable_msi(adapter->pdev);
 		DPRINTK(PROBE, ERR,
 		        "Unable to allocate interrupt Error: %d\n", err);
+	}
 
 	return err;
 }
@@ -335,10 +328,8 @@ static void e1000_free_irq(struct e1000_adapter *adapter)
 
 	free_irq(adapter->pdev->irq, netdev);
 
-#ifdef CONFIG_PCI_MSI
 	if (adapter->have_msi)
 		pci_disable_msi(adapter->pdev);
-#endif
 }
 
 /**
@@ -3744,7 +3735,6 @@ e1000_update_stats(struct e1000_adapter *adapter)
 
 	spin_unlock_irqrestore(&adapter->stats_lock, flags);
 }
-#ifdef CONFIG_PCI_MSI
 
 /**
  * e1000_intr_msi - Interrupt Handler
@@ -3810,7 +3800,6 @@ e1000_intr_msi(int irq, void *data)
 
 	return IRQ_HANDLED;
 }
-#endif
 
 /**
  * e1000_intr - Interrupt Handler

trunk/drivers/net/gianfar.c

@@ -1025,6 +1025,15 @@ static int gfar_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	dev->trans_start = jiffies;
 
+	/* The powerpc-specific eieio() is used, as wmb() has too strong
+	 * semantics (it requires synchronization between cacheable and
+	 * uncacheable mappings, which eieio doesn't provide and which we
+	 * don't need), thus requiring a more expensive sync instruction.  At
+	 * some point, the set of architecture-independent barrier functions
+	 * should be expanded to include weaker barriers.
+	 */
+
+	eieio();
 	txbdp->status = status;
 
 	/* If this was the last BD in the ring, the next one */
@@ -1301,6 +1310,7 @@ struct sk_buff * gfar_new_skb(struct net_device *dev, struct rxbd8 *bdp)
 	bdp->length = 0;
 
 	/* Mark the buffer empty */
+	eieio();
 	bdp->status |= (RXBD_EMPTY | RXBD_INTERRUPT);
 
 	return skb;
@@ -1484,6 +1494,7 @@ int gfar_clean_rx_ring(struct net_device *dev, int rx_work_limit)
 	bdp = priv->cur_rx;
 
 	while (!((bdp->status & RXBD_EMPTY) || (--rx_work_limit < 0))) {
+		rmb();
 		skb = priv->rx_skbuff[priv->skb_currx];
 
 		if (!(bdp->status &

trunk/drivers/net/ibm_emac/ibm_emac_core.c

@@ -926,7 +926,7 @@ static int emac_link_differs(struct ocp_enet_private *dev)
 	int duplex = r & EMAC_MR1_FDE ? DUPLEX_FULL : DUPLEX_HALF;
 	int speed, pause, asym_pause;
 
-	if (r & (EMAC_MR1_MF_1000 | EMAC_MR1_MF_1000GPCS))
+	if (r & EMAC_MR1_MF_1000)
 		speed = SPEED_1000;
 	else if (r & EMAC_MR1_MF_100)
 		speed = SPEED_100;

trunk/drivers/net/ibm_emac/ibm_emac_mal.c

@@ -59,8 +59,7 @@ int __init mal_register_commac(struct ibm_ocp_mal *mal,
 	return 0;
 }
 
-void __exit mal_unregister_commac(struct ibm_ocp_mal *mal,
-				  struct mal_commac *commac)
+void mal_unregister_commac(struct ibm_ocp_mal *mal, struct mal_commac *commac)
 {
 	unsigned long flags;
 	local_irq_save(flags);

trunk/drivers/net/ibm_emac/ibm_emac_mal.h

@@ -223,8 +223,7 @@ void mal_exit(void) __exit;
 
 int mal_register_commac(struct ibm_ocp_mal *mal,
 			struct mal_commac *commac) __init;
-void mal_unregister_commac(struct ibm_ocp_mal *mal,
-			   struct mal_commac *commac) __exit;
+void mal_unregister_commac(struct ibm_ocp_mal *mal, struct mal_commac *commac);
 int mal_set_rcbs(struct ibm_ocp_mal *mal, int channel, unsigned long size);
 
 /* Returns BD ring offset for a particular channel