Merge tag 'v3.12-rc2' into patchwork

Linux 3.12-rc2

* tag 'v3.12-rc2': (10774 commits)
  Linux 3.12-rc2
  cfq: explicitly use 64bit divide operation for 64bit arguments
  block: Add nr_bios to block_rq_remap tracepoint
  Btrfs: create the uuid tree on remount rw
  btrfs: change extent-same to copy entire argument struct
  Btrfs: dir_inode_operations should use btrfs_update_time also
  btrfs: Add btrfs: prefix to kernel log output
  btrfs: refuse to remount read-write after abort
  Btrfs: btrfs_ioctl_default_subvol: Revert back to toplevel subvolume when arg is 0
  Btrfs: don't leak transaction in btrfs_sync_file()
  Btrfs: add the missing mutex unlock in write_all_supers()
  Btrfs: iput inode on allocation failure
  Btrfs: remove space_info->reservation_progress
  Btrfs: kill delay_iput arg to the wait_ordered functions
  Btrfs: fix worst case calculator for space usage
  Revert "Btrfs: rework the overcommit logic to be based on the total size"
  Btrfs: improve replacing nocow extents
  Btrfs: drop dir i_size when adding new names on replay
  Btrfs: replay dir_index items before other items
  Btrfs: check roots last log commit when checking if an inode has been logged
  ...

1 files changed, 56 insertions, 47 deletions

diff --git a/drivers/tty/serial/icom.c b/drivers/tty/serial/icom.c
index 18ed5aebb16..d98e4334897 100644
--- a/drivers/tty/serial/icom.c
+++ b/drivers/tty/serial/icom.c
@@ -105,7 +105,7 @@ static const struct pci_device_id icom_pci_table[] = {
 	{}
 };
 
-struct lookup_proc_table start_proc[4] = {
+static struct lookup_proc_table start_proc[4] = {
 	{NULL, ICOM_CONTROL_START_A},
 	{NULL, ICOM_CONTROL_START_B},
 	{NULL, ICOM_CONTROL_START_C},
@@ -113,14 +113,14 @@ struct lookup_proc_table start_proc[4] = {
 };
 
 
-struct lookup_proc_table stop_proc[4] = {
+static struct lookup_proc_table stop_proc[4] = {
 	{NULL, ICOM_CONTROL_STOP_A},
 	{NULL, ICOM_CONTROL_STOP_B},
 	{NULL, ICOM_CONTROL_STOP_C},
 	{NULL, ICOM_CONTROL_STOP_D}
 };
 
-struct lookup_int_table int_mask_tbl[4] = {
+static struct lookup_int_table int_mask_tbl[4] = {
 	{NULL, ICOM_INT_MASK_PRC_A},
 	{NULL, ICOM_INT_MASK_PRC_B},
 	{NULL, ICOM_INT_MASK_PRC_C},
@@ -297,25 +297,25 @@ static void stop_processor(struct icom_port *icom_port)
 	spin_lock_irqsave(&icom_lock, flags);
 
 	port = icom_port->port;
+	if (port >= ARRAY_SIZE(stop_proc)) {
+		dev_err(&icom_port->adapter->pci_dev->dev,
+			"Invalid port assignment\n");
+		goto unlock;
+	}
+
 	if (port == 0 || port == 1)
 		stop_proc[port].global_control_reg = &icom_port->global_reg->control;
 	else
 		stop_proc[port].global_control_reg = &icom_port->global_reg->control_2;
 
+	temp = readl(stop_proc[port].global_control_reg);
+	temp = (temp & ~start_proc[port].processor_id) | stop_proc[port].processor_id;
+	writel(temp, stop_proc[port].global_control_reg);
 
-	if (port < 4) {
-		temp = readl(stop_proc[port].global_control_reg);
-		temp =
-			(temp & ~start_proc[port].processor_id) | stop_proc[port].processor_id;
-		writel(temp, stop_proc[port].global_control_reg);
-
-		/* write flush */
-		readl(stop_proc[port].global_control_reg);
-	} else {
-		dev_err(&icom_port->adapter->pci_dev->dev,
-                        "Invalid port assignment\n");
-	}
+	/* write flush */
+	readl(stop_proc[port].global_control_reg);
 
+unlock:
 	spin_unlock_irqrestore(&icom_lock, flags);
 }
 
@@ -328,23 +328,25 @@ static void start_processor(struct icom_port *icom_port)
 	spin_lock_irqsave(&icom_lock, flags);
 
 	port = icom_port->port;
+	if (port >= ARRAY_SIZE(start_proc)) {
+		dev_err(&icom_port->adapter->pci_dev->dev,
+			"Invalid port assignment\n");
+		goto unlock;
+	}
+
 	if (port == 0 || port == 1)
 		start_proc[port].global_control_reg = &icom_port->global_reg->control;
 	else
 		start_proc[port].global_control_reg = &icom_port->global_reg->control_2;
-	if (port < 4) {
-		temp = readl(start_proc[port].global_control_reg);
-		temp =
-			(temp & ~stop_proc[port].processor_id) | start_proc[port].processor_id;
-		writel(temp, start_proc[port].global_control_reg);
 
-		/* write flush */
-		readl(start_proc[port].global_control_reg);
-	} else {
-		dev_err(&icom_port->adapter->pci_dev->dev,
-                        "Invalid port assignment\n");
-	}
+	temp = readl(start_proc[port].global_control_reg);
+	temp = (temp & ~stop_proc[port].processor_id) | start_proc[port].processor_id;
+	writel(temp, start_proc[port].global_control_reg);
+
+	/* write flush */
+	readl(start_proc[port].global_control_reg);
 
+unlock:
 	spin_unlock_irqrestore(&icom_lock, flags);
 }
 
@@ -557,6 +559,12 @@ static int startup(struct icom_port *icom_port)
 	 */
 	spin_lock_irqsave(&icom_lock, flags);
 	port = icom_port->port;
+	if (port >= ARRAY_SIZE(int_mask_tbl)) {
+		dev_err(&icom_port->adapter->pci_dev->dev,
+			"Invalid port assignment\n");
+		goto unlock;
+	}
+
 	if (port == 0 || port == 1)
 		int_mask_tbl[port].global_int_mask = &icom_port->global_reg->int_mask;
 	else
@@ -566,17 +574,14 @@ static int startup(struct icom_port *icom_port)
 		writew(0x00FF, icom_port->int_reg);
 	else
 		writew(0x3F00, icom_port->int_reg);
-	if (port < 4) {
-		temp = readl(int_mask_tbl[port].global_int_mask);
-		writel(temp & ~int_mask_tbl[port].processor_id, int_mask_tbl[port].global_int_mask);
 
-		/* write flush */
-		readl(int_mask_tbl[port].global_int_mask);
-	} else {
-		dev_err(&icom_port->adapter->pci_dev->dev,
-                        "Invalid port assignment\n");
-	}
+	temp = readl(int_mask_tbl[port].global_int_mask);
+	writel(temp & ~int_mask_tbl[port].processor_id, int_mask_tbl[port].global_int_mask);
 
+	/* write flush */
+	readl(int_mask_tbl[port].global_int_mask);
+
+unlock:
 	spin_unlock_irqrestore(&icom_lock, flags);
 	return 0;
 }
@@ -595,21 +600,23 @@ static void shutdown(struct icom_port *icom_port)
 	 * disable all interrupts
 	 */
 	port = icom_port->port;
+	if (port >= ARRAY_SIZE(int_mask_tbl)) {
+		dev_err(&icom_port->adapter->pci_dev->dev,
+			"Invalid port assignment\n");
+		goto unlock;
+	}
 	if (port == 0 || port == 1)
 		int_mask_tbl[port].global_int_mask = &icom_port->global_reg->int_mask;
 	else
 		int_mask_tbl[port].global_int_mask = &icom_port->global_reg->int_mask_2;
 
-	if (port < 4) {
-		temp = readl(int_mask_tbl[port].global_int_mask);
-		writel(temp | int_mask_tbl[port].processor_id, int_mask_tbl[port].global_int_mask);
+	temp = readl(int_mask_tbl[port].global_int_mask);
+	writel(temp | int_mask_tbl[port].processor_id, int_mask_tbl[port].global_int_mask);
 
-		/* write flush */
-		readl(int_mask_tbl[port].global_int_mask);
-	} else {
-		dev_err(&icom_port->adapter->pci_dev->dev,
-                        "Invalid port assignment\n");
-	}
+	/* write flush */
+	readl(int_mask_tbl[port].global_int_mask);
+
+unlock:
 	spin_unlock_irqrestore(&icom_lock, flags);
 
 	/*
@@ -834,7 +841,10 @@ ignore_char:
 		status = cpu_to_le16(icom_port->statStg->rcv[rcv_buff].flags);
 	}
 	icom_port->next_rcv = rcv_buff;
+
+	spin_unlock(&icom_port->uart_port.lock);
 	tty_flip_buffer_push(port);
+	spin_lock(&icom_port->uart_port.lock);
 }
 
 static void process_interrupt(u16 port_int_reg,
@@ -1087,8 +1097,7 @@ static void icom_close(struct uart_port *port)
 
 	/* stop receiver */
 	cmdReg = readb(&ICOM_PORT->dram->CmdReg);
-	writeb(cmdReg & (unsigned char) ~CMD_RCV_ENABLE,
-	       &ICOM_PORT->dram->CmdReg);
+	writeb(cmdReg & ~CMD_RCV_ENABLE, &ICOM_PORT->dram->CmdReg);
 
 	shutdown(ICOM_PORT);
 
@@ -1567,7 +1576,7 @@ static int icom_probe(struct pci_dev *dev,
 			icom_port->uart_port.type = PORT_ICOM;
 			icom_port->uart_port.iotype = UPIO_MEM;
 			icom_port->uart_port.membase =
-					       (char *) icom_adapter->base_addr_pci;
+				(unsigned char __iomem *)icom_adapter->base_addr_pci;
 			icom_port->uart_port.fifosize = 16;
 			icom_port->uart_port.ops = &icom_ops;
 			icom_port->uart_port.line =