Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git

Documentation/arm/Samsung-S3C24XX/USB-Host.txt

+			S3C24XX USB Host support
+			========================
+
+
+
+Introduction
+------------
+
+  This document details the S3C2410/S3C2440 in-built OHCI USB host support.
+
+Configuration
+-------------
+
+  Enable at least the following kernel options:
+
+  menuconfig:
+
+   Device Drivers  --->
+     USB support  --->
+       <*> Support for Host-side USB
+       <*>   OHCI HCD support
+
+
+  .config:
+    CONFIG_USB
+    CONFIG_USB_OHCI_HCD
+
+
+  Once these options are configured, the standard set of USB device
+  drivers can be configured and used.
+
+
+Board Support
+-------------
+
+  The driver attaches to a platform device, which will need to be
+  added by the board specific support file in linux/arch/arm/mach-s3c2410,
+  such as mach-bast.c or mach-smdk2410.c
+
+  The platform device's platform_data field is only needed if the
+  board implements extra power control or over-current monitoring.
+
+  The OHCI driver does not ensure the state of the S3C2410's MISCCTRL
+  register, so if both ports are to be used for the host, then it is
+  the board support file's responsibility to ensure that the second
+  port is configured to be connected to the OHCI core.
+
+
+Platform Data
+-------------
+
+  See linux/include/asm-arm/arch-s3c2410/usb-control.h for the
+  descriptions of the platform device data. An implementation
+  can be found in linux/arch/arm/mach-s3c2410/usb-simtec.c .
+
+  The `struct s3c2410_hcd_info` contains a pair of functions
+  that get called to enable over-current detection, and to
+  control the port power status.
+
+  The ports are numbered 0 and 1.
+
+  power_control:
+
+    Called to enable or disable the power on the port.
+
+  enable_oc:
+
+    Called to enable or disable the over-current monitoring.
+    This should claim or release the resources being used to
+    check the power condition on the port, such as an IRQ.
+
+  report_oc:
+
+    The OHCI driver fills this field in for the over-current code
+    to call when there is a change to the over-current state on
+    an port. The ports argument is a bitmask of 1 bit per port,
+    with bit X being 1 for an over-current on port X.
+
+    The function s3c2410_usb_report_oc() has been provided to
+    ensure this is called correctly.
+
+  port[x]:
+
+    This is struct describes each port, 0 or 1. The platform driver
+    should set the flags field of each port to S3C_HCDFLG_USED if
+    the port is enabled.
+
+
+
+Document Author
+---------------
+
+Ben Dooks, (c) 2005 Simtec Electronics

MAINTAINERS

@@ -784,7 +784,7 @@ DVB SUBSYSTEM AND DRIVERS
 P:	LinuxTV.org Project
 M: 	linux-dvb-maintainer@linuxtv.org
 L: 	linux-dvb@linuxtv.org (subscription required)
-W:	http://linuxtv.org/developer/dvb.xml
+W:	http://linuxtv.org/
 S:	Supported
 
 EATA-DMA SCSI DRIVER

arch/arm/kernel/entry-armv.S

@@ -533,6 +533,13 @@ ENTRY(__switch_to)
 	ldr	r3, [r2, #TI_TP_VALUE]
 	stmia	ip!, {r4 - sl, fp, sp, lr}	@ Store most regs on stack
 	ldr	r6, [r2, #TI_CPU_DOMAIN]!
+#if __LINUX_ARM_ARCH__ >= 6
+#ifdef CONFIG_CPU_MPCORE
+	clrex
+#else
+	strex	r3, r4, [ip]			@ Clear exclusive monitor
+#endif
+#endif
 #if defined(CONFIG_CPU_XSCALE) && !defined(CONFIG_IWMMXT)
 	mra	r4, r5, acc0
 	stmia   ip, {r4, r5}

arch/arm/lib/bitops.h

-#if __LINUX_ARM_ARCH__ >= 6
+#include <linux/config.h>
+
+#if __LINUX_ARM_ARCH__ >= 6 && defined(CONFIG_CPU_MPCORE)
 	.macro	bitop, instr
 	mov	r2, #1
 	and	r3, r0, #7		@ Get bit offset

arch/arm/mach-s3c2410/usb-simtec.c

 /* linux/arch/arm/mach-s3c2410/usb-simtec.c
  *
- * Copyright (c) 2004 Simtec Electronics
+ * Copyright (c) 2004,2005 Simtec Electronics
  *   Ben Dooks <ben@simtec.co.uk>
  *
  * http://www.simtec.co.uk/products/EB2410ITX/
@@ -14,6 +14,8 @@
  * Modifications:
  *	14-Sep-2004 BJD  Created
  *	18-Oct-2004 BJD  Cleanups, and added code to report OC cleared
+ *	09-Aug-2005 BJD  Renamed s3c2410_report_oc to s3c2410_usb_report_oc
+ *	09-Aug-2005 BJD  Ports powered only if both are enabled
 */
 
 #define DEBUG
@@ -47,13 +49,19 @@
  * designed boards.
 */
 
+static unsigned int power_state[2];
+
 static void
 usb_simtec_powercontrol(int port, int to)
 {
 	pr_debug("usb_simtec_powercontrol(%d,%d)\n", port, to);
 
-	if (port == 1)
-		s3c2410_gpio_setpin(S3C2410_GPB4, to ? 0:1);
+	power_state[port] = to;
+
+	if (power_state[0] && power_state[1])
+		s3c2410_gpio_setpin(S3C2410_GPB4, 0);
+	else
+		s3c2410_gpio_setpin(S3C2410_GPB4, 1);
 }
 
 static irqreturn_t
@@ -63,10 +71,10 @@ usb_simtec_ocirq(int irq, void *pw, struct pt_regs *regs)
 
 	if (s3c2410_gpio_getpin(S3C2410_GPG10) == 0) {
 		pr_debug("usb_simtec: over-current irq (oc detected)\n");
-		s3c2410_report_oc(info, 3);
+		s3c2410_usb_report_oc(info, 3);
 	} else {
 		pr_debug("usb_simtec: over-current irq (oc cleared)\n");
-		s3c2410_report_oc(info, 0);
+		s3c2410_usb_report_oc(info, 0);
 	}
 
 	return IRQ_HANDLED;

arch/arm/mm/mm-armv.c

@@ -383,6 +383,7 @@ static void __init build_mem_type_table(void)
 {
 	struct cachepolicy *cp;
 	unsigned int cr = get_cr();
+	unsigned int user_pgprot;
 	int cpu_arch = cpu_architecture();
 	int i;
 
@@ -408,6 +409,9 @@ static void __init build_mem_type_table(void)
 		}
 	}
 
+	cp = &cache_policies[cachepolicy];
+	user_pgprot = cp->pte;
+
 	/*
 	 * ARMv6 and above have extended page tables.
 	 */
@@ -426,11 +430,18 @@ static void __init build_mem_type_table(void)
 		mem_types[MT_MINICLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
 		mem_types[MT_CACHECLEAN].prot_sect |= PMD_SECT_APX|PMD_SECT_AP_WRITE;
 
+		/*
+		 * Mark the device area as "shared device"
+		 */
 		mem_types[MT_DEVICE].prot_pte |= L_PTE_BUFFERABLE;
 		mem_types[MT_DEVICE].prot_sect |= PMD_SECT_BUFFERED;
-	}
 
-	cp = &cache_policies[cachepolicy];
+		/*
+		 * User pages need to be mapped with the ASID
+		 * (iow, non-global)
+		 */
+		user_pgprot |= L_PTE_ASID;
+	}
 
 	if (cpu_arch >= CPU_ARCH_ARMv5) {
 		mem_types[MT_LOW_VECTORS].prot_pte |= cp->pte & PTE_CACHEABLE;
@@ -448,7 +459,7 @@ static void __init build_mem_type_table(void)
 
 	for (i = 0; i < 16; i++) {
 		unsigned long v = pgprot_val(protection_map[i]);
-		v &= (~(PTE_BUFFERABLE|PTE_CACHEABLE)) | cp->pte;
+		v &= (~(PTE_BUFFERABLE|PTE_CACHEABLE)) | user_pgprot;
 		protection_map[i] = __pgprot(v);
 	}
 

arch/arm/mm/proc-v6.S

@@ -111,12 +111,6 @@ ENTRY(cpu_v6_switch_mm)
 	mcr	p15, 0, r1, c13, c0, 1		@ set context ID
 	mov	pc, lr
 
-#define nG	(1 << 11)
-#define APX	(1 << 9)
-#define AP1	(1 << 5)
-#define AP0	(1 << 4)
-#define XN	(1 << 0)
-
 /*
  *	cpu_v6_set_pte(ptep, pte)
  *
@@ -139,24 +133,24 @@ ENTRY(cpu_v6_switch_mm)
 ENTRY(cpu_v6_set_pte)
 	str	r1, [r0], #-2048		@ linux version
 
-	bic	r2, r1, #0x00000ff0
+	bic	r2, r1, #0x000007f0
 	bic	r2, r2, #0x00000003
-	orr	r2, r2, #AP0 | 2
+	orr	r2, r2, #PTE_EXT_AP0 | 2
 
 	tst	r1, #L_PTE_WRITE
 	tstne	r1, #L_PTE_DIRTY
-	orreq	r2, r2, #APX
+	orreq	r2, r2, #PTE_EXT_APX
 
 	tst	r1, #L_PTE_USER
-	orrne	r2, r2, #AP1 | nG
-	tstne	r2, #APX
-	bicne	r2, r2, #APX | AP0
+	orrne	r2, r2, #PTE_EXT_AP1
+	tstne	r2, #PTE_EXT_APX
+	bicne	r2, r2, #PTE_EXT_APX | PTE_EXT_AP0
 
 	tst	r1, #L_PTE_YOUNG
-	biceq	r2, r2, #APX | AP1 | AP0
+	biceq	r2, r2, #PTE_EXT_APX | PTE_EXT_AP_MASK
 
 @	tst	r1, #L_PTE_EXEC
-@	orreq	r2, r2, #XN
+@	orreq	r2, r2, #PTE_EXT_XN
 
 	tst	r1, #L_PTE_PRESENT
 	moveq	r2, #0

arch/ppc64/kernel/prom_init.c

@@ -1803,7 +1803,7 @@ static void __init fixup_device_tree(void)
 	if (prom_getprop(u3, "device-rev", &u3_rev, sizeof(u3_rev))
 	    == PROM_ERROR)
 		return;
-	if (u3_rev != 0x35)
+	if (u3_rev != 0x35 && u3_rev != 0x37)
 		return;
 	/* does it need fixup ? */
 	if (prom_getproplen(i2c, "interrupts") > 0)

arch/x86_64/kernel/smpboot.c

@@ -334,7 +334,7 @@ static void __cpuinit tsc_sync_wait(void)
 {
 	if (notscsync || !cpu_has_tsc)
 		return;
-	sync_tsc(boot_cpu_id);
+	sync_tsc(0);
 }
 
 static __init int notscsync_setup(char *s)

drivers/char/mem.c

@@ -261,7 +261,11 @@ static int mmap_mem(struct file * file, struct vm_area_struct * vma)
 
 static int mmap_kmem(struct file * file, struct vm_area_struct * vma)
 {
-        unsigned long long val;
+	unsigned long pfn;
+
+	/* Turn a kernel-virtual address into a physical page frame */
+	pfn = __pa((u64)vma->vm_pgoff << PAGE_SHIFT) >> PAGE_SHIFT;
+
 	/*
 	 * RED-PEN: on some architectures there is more mapped memory
 	 * than available in mem_map which pfn_valid checks
@@ -269,10 +273,10 @@ static int mmap_kmem(struct file * file, struct vm_area_struct * vma)
 	 *
 	 * RED-PEN: vmalloc is not supported right now.
 	 */
-	if (!pfn_valid(vma->vm_pgoff))
+	if (!pfn_valid(pfn))
 		return -EIO;
-	val = (u64)vma->vm_pgoff << PAGE_SHIFT;
-	vma->vm_pgoff = __pa(val) >> PAGE_SHIFT;
+
+	vma->vm_pgoff = pfn;
 	return mmap_mem(file, vma);
 }
 

drivers/input/gameport/ns558.c

@@ -275,9 +275,9 @@ static int __init ns558_init(void)
 
 static void __exit ns558_exit(void)
 {
-	struct ns558 *ns558;
+	struct ns558 *ns558, *safe;
 
-	list_for_each_entry(ns558, &ns558_list, node) {
+	list_for_each_entry_safe(ns558, safe, &ns558_list, node) {
 		gameport_unregister_port(ns558->gameport);
 		release_region(ns558->io & ~(ns558->size - 1), ns558->size);
 		kfree(ns558);

drivers/mmc/wbsd.c

@@ -42,7 +42,7 @@
 #include "wbsd.h"
 
 #define DRIVER_NAME "wbsd"
-#define DRIVER_VERSION "1.2"
+#define DRIVER_VERSION "1.3"
 
 #ifdef CONFIG_MMC_DEBUG
 #define DBG(x...) \

drivers/net/e1000/e1000_main.c

@@ -3789,6 +3789,7 @@ e1000_netpoll(struct net_device *netdev)
 	struct e1000_adapter *adapter = netdev_priv(netdev);
 	disable_irq(adapter->pdev->irq);
 	e1000_intr(adapter->pdev->irq, netdev, NULL);
+	e1000_clean_tx_irq(adapter);
 	enable_irq(adapter->pdev->irq);
 }
 #endif

drivers/net/hamradio/6pack.c

@@ -130,12 +130,11 @@ struct sixpack {
 
 #define AX25_6PACK_HEADER_LEN 0
 
-static void sp_start_tx_timer(struct sixpack *);
 static void sixpack_decode(struct sixpack *, unsigned char[], int);
 static int encode_sixpack(unsigned char *, unsigned char *, int, unsigned char);
 
 /*
- * perform the persistence/slottime algorithm for CSMA access. If the
+ * Perform the persistence/slottime algorithm for CSMA access. If the
  * persistence check was successful, write the data to the serial driver.
  * Note that in case of DAMA operation, the data is not sent here.
  */
@@ -143,7 +142,7 @@ static int encode_sixpack(unsigned char *, unsigned char *, int, unsigned char);
 static void sp_xmit_on_air(unsigned long channel)
 {
 	struct sixpack *sp = (struct sixpack *) channel;
-	int actual;
+	int actual, when = sp->slottime;
 	static unsigned char random;
 
 	random = random * 17 + 41;
@@ -159,20 +158,10 @@ static void sp_xmit_on_air(unsigned long channel)
 		sp->tty->driver->write(sp->tty, &sp->led_state, 1);
 		sp->status2 = 0;
 	} else
-		sp_start_tx_timer(sp);
+		mod_timer(&sp->tx_t, jiffies + ((when + 1) * HZ) / 100);
 }
 
 /* ----> 6pack timer interrupt handler and friends. <---- */
-static void sp_start_tx_timer(struct sixpack *sp)
-{
-	int when = sp->slottime;
-
-	del_timer(&sp->tx_t);
-	sp->tx_t.data = (unsigned long) sp;
-	sp->tx_t.function = sp_xmit_on_air;
-	sp->tx_t.expires = jiffies + ((when + 1) * HZ) / 100;
-	add_timer(&sp->tx_t);
-}
 
 /* Encapsulate one AX.25 frame and stuff into a TTY queue. */
 static void sp_encaps(struct sixpack *sp, unsigned char *icp, int len)
@@ -243,8 +232,7 @@ static void sp_encaps(struct sixpack *sp, unsigned char *icp, int len)
 		sp->xleft = count;
 		sp->xhead = sp->xbuff;
 		sp->status2 = count;
-		if (sp->duplex == 0)
-			sp_start_tx_timer(sp);
+		sp_xmit_on_air((unsigned long)sp);
 	}
 
 	return;

drivers/scsi/dc395x.c

@@ -183,7 +183,7 @@
  * cross a page boundy.
  */
 #define SEGMENTX_LEN	(sizeof(struct SGentry)*DC395x_MAX_SG_LISTENTRY)
-#define VIRTX_LEN	(sizeof(void *) * DC395x_MAX_SG_LISTENTRY)
+
 
 struct SGentry {
 	u32 address;		/* bus! address */
@@ -235,7 +235,6 @@ struct ScsiReqBlk {
 	u8 sg_count;			/* No of HW sg entries for this request */
 	u8 sg_index;			/* Index of HW sg entry for this request */
 	u32 total_xfer_length;		/* Total number of bytes remaining to be transfered */
-	void **virt_map;
 	unsigned char *virt_addr;	/* Virtual address of current transfer position */
 
 	/*
@@ -1022,14 +1021,14 @@ static void build_srb(struct scsi_cmnd *cmd, struct DeviceCtlBlk *dcb,
 			reqlen, cmd->request_buffer, cmd->use_sg,
 			srb->sg_count);
 
+		srb->virt_addr = page_address(sl->page);
 		for (i = 0; i < srb->sg_count; i++) {
-			u32 seglen = (u32)sg_dma_len(sl + i);
-			sgp[i].address = (u32)sg_dma_address(sl + i);
+			u32 busaddr = (u32)sg_dma_address(&sl[i]);
+			u32 seglen = (u32)sl[i].length;
+			sgp[i].address = busaddr;
 			sgp[i].length = seglen;
 			srb->total_xfer_length += seglen;
-			srb->virt_map[i] = kmap(sl[i].page);
 		}
-		srb->virt_addr = srb->virt_map[0];
 		sgp += srb->sg_count - 1;
 
 		/*
@@ -1976,7 +1975,6 @@ static void sg_update_list(struct ScsiReqBlk *srb, u32 left)
 	int segment = cmd->use_sg;
 	u32 xferred = srb->total_xfer_length - left; /* bytes transfered */
 	struct SGentry *psge = srb->segment_x + srb->sg_index;
-	void **virt = srb->virt_map;
 
 	dprintkdbg(DBG_0,
 		"sg_update_list: Transfered %i of %i bytes, %i remain\n",
@@ -2016,16 +2014,16 @@ static void sg_update_list(struct ScsiReqBlk *srb, u32 left)
 
 	/* We have to walk the scatterlist to find it */
 	sg = (struct scatterlist *)cmd->request_buffer;
-	idx = 0;
 	while (segment--) {
 		unsigned long mask =
 		    ~((unsigned long)sg->length - 1) & PAGE_MASK;
 		if ((sg_dma_address(sg) & mask) == (psge->address & mask)) {
-			srb->virt_addr = virt[idx] + (psge->address & ~PAGE_MASK);
+			srb->virt_addr = (page_address(sg->page)
+					   + psge->address -
+					   (psge->address & PAGE_MASK));
 			return;
 		}
 		++sg;
-		++idx;
 	}
 
 	dprintkl(KERN_ERR, "sg_update_list: sg_to_virt failed\n");
@@ -2151,7 +2149,7 @@ static void data_out_phase0(struct AdapterCtlBlk *acb, struct ScsiReqBlk *srb,
 				DC395x_read32(acb, TRM_S1040_DMA_CXCNT));
 		}
 		/*
-		 * calculate all the residue data that not yet transfered
+		 * calculate all the residue data that not yet tranfered
 		 * SCSI transfer counter + left in SCSI FIFO data
 		 *
 		 * .....TRM_S1040_SCSI_COUNTER (24bits)
@@ -3269,7 +3267,6 @@ static void pci_unmap_srb(struct AdapterCtlBlk *acb, struct ScsiReqBlk *srb)
 	struct scsi_cmnd *cmd = srb->cmd;
 	enum dma_data_direction dir = cmd->sc_data_direction;
 	if (cmd->use_sg && dir != PCI_DMA_NONE) {
-		int i;
 		/* unmap DC395x SG list */
 		dprintkdbg(DBG_SG, "pci_unmap_srb: list=%08x(%05x)\n",
 			srb->sg_bus_addr, SEGMENTX_LEN);
@@ -3279,8 +3276,6 @@ static void pci_unmap_srb(struct AdapterCtlBlk *acb, struct ScsiReqBlk *srb)
 		dprintkdbg(DBG_SG, "pci_unmap_srb: segs=%i buffer=%p\n",
 			cmd->use_sg, cmd->request_buffer);
 		/* unmap the sg segments */
-		for (i = 0; i < srb->sg_count; i++)
-			kunmap(virt_to_page(srb->virt_map[i]));
 		pci_unmap_sg(acb->dev,
 			     (struct scatterlist *)cmd->request_buffer,
 			     cmd->use_sg, dir);
@@ -3327,7 +3322,7 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb,
 
 	if (cmd->use_sg) {
 		struct scatterlist* sg = (struct scatterlist *)cmd->request_buffer;
-		ptr = (struct ScsiInqData *)(srb->virt_map[0] + sg->offset);
+		ptr = (struct ScsiInqData *)(page_address(sg->page) + sg->offset);
 	} else {
 		ptr = (struct ScsiInqData *)(cmd->request_buffer);
 	}
@@ -4262,9 +4257,8 @@ static void adapter_sg_tables_free(struct AdapterCtlBlk *acb)
 	const unsigned srbs_per_page = PAGE_SIZE/SEGMENTX_LEN;
 
 	for (i = 0; i < DC395x_MAX_SRB_CNT; i += srbs_per_page)
-		kfree(acb->srb_array[i].segment_x);
-
-	vfree(acb->srb_array[0].virt_map);
+		if (acb->srb_array[i].segment_x)
+			kfree(acb->srb_array[i].segment_x);
 }
 
 
@@ -4280,12 +4274,9 @@ static int __devinit adapter_sg_tables_alloc(struct AdapterCtlBlk *acb)
 	int srb_idx = 0;
 	unsigned i = 0;
 	struct SGentry *ptr;
-	void **virt_array;
 
-	for (i = 0; i < DC395x_MAX_SRB_CNT; i++) {
+	for (i = 0; i < DC395x_MAX_SRB_CNT; i++)
 		acb->srb_array[i].segment_x = NULL;
-		acb->srb_array[i].virt_map = NULL;
-	}
 
 	dprintkdbg(DBG_1, "Allocate %i pages for SG tables\n", pages);
 	while (pages--) {
@@ -4306,19 +4297,6 @@ static int __devinit adapter_sg_tables_alloc(struct AdapterCtlBlk *acb)
 		    ptr + (i * DC395x_MAX_SG_LISTENTRY);
 	else
 		dprintkl(KERN_DEBUG, "No space for tmsrb SG table reserved?!\n");
-
-	virt_array = vmalloc((DC395x_MAX_SRB_CNT + 1) * DC395x_MAX_SG_LISTENTRY * sizeof(void*));
-
-	if (!virt_array) {
-		adapter_sg_tables_free(acb);
-		return 1;
-	}
-
-	for (i = 0; i < DC395x_MAX_SRB_CNT + 1; i++) {
-		acb->srb_array[i].virt_map = virt_array;
-		virt_array += DC395x_MAX_SG_LISTENTRY;
-	}
-
 	return 0;
 }
 

drivers/scsi/dpt_i2o.c

@@ -907,9 +907,13 @@ static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev
 		raptorFlag = TRUE;
 	}
 
-
+	if (pci_request_regions(pDev, "dpt_i2o")) {
+		PERROR("dpti: adpt_config_hba: pci request region failed\n");
+		return -EINVAL;
+	}
 	base_addr_virt = ioremap(base_addr0_phys,hba_map0_area_size);
 	if (!base_addr_virt) {
+		pci_release_regions(pDev);
 		PERROR("dpti: adpt_config_hba: io remap failed\n");
 		return -EINVAL;
 	}
@@ -919,6 +923,7 @@ static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev
 		if (!msg_addr_virt) {
 			PERROR("dpti: adpt_config_hba: io remap failed on BAR1\n");
 			iounmap(base_addr_virt);
+			pci_release_regions(pDev);
 			return -EINVAL;
 		}
 	} else {
@@ -932,6 +937,7 @@ static int adpt_install_hba(struct scsi_host_template* sht, struct pci_dev* pDev
 			iounmap(msg_addr_virt);
 		}
 		iounmap(base_addr_virt);
+		pci_release_regions(pDev);
 		return -ENOMEM;
 	}
 	memset(pHba, 0, sizeof(adpt_hba));
@@ -1027,6 +1033,7 @@ static void adpt_i2o_delete_hba(adpt_hba* pHba)
 	up(&adpt_configuration_lock);
 
 	iounmap(pHba->base_addr_virt);
+	pci_release_regions(pHba->pDev);
 	if(pHba->msg_addr_virt != pHba->base_addr_virt){
 		iounmap(pHba->msg_addr_virt);
 	}

drivers/scsi/libata-scsi.c

@@ -385,6 +385,7 @@ int ata_scsi_error(struct Scsi_Host *host)
 	 * appropriate place
 	 */
 	host->host_failed--;
+	INIT_LIST_HEAD(&host->eh_cmd_q);
 
 	DPRINTK("EXIT\n");
 	return 0;

drivers/scsi/sata_sx4.c

@@ -468,7 +468,7 @@ static void pdc20621_dma_prep(struct ata_queued_cmd *qc)
 	for (i = 0; i < last; i++) {
 		buf[idx++] = cpu_to_le32(sg_dma_address(&sg[i]));
 		buf[idx++] = cpu_to_le32(sg_dma_len(&sg[i]));
-		total_len += sg[i].length;
+		total_len += sg_dma_len(&sg[i]);
 	}
 	buf[idx - 1] |= cpu_to_le32(ATA_PRD_EOT);
 	sgt_len = idx * 4;

drivers/scsi/scsi_scan.c

@@ -336,9 +336,23 @@ static struct scsi_target *scsi_alloc_target(struct device *parent,
 	unsigned long flags;
 	const int size = sizeof(struct scsi_target)
 		+ shost->transportt->target_size;
-	struct scsi_target *starget = kmalloc(size, GFP_ATOMIC);
+	struct scsi_target *starget;
 	struct scsi_target *found_target;
 
+	/*
+	 * Obtain the real parent from the transport. The transport
+	 * is allowed to fail (no error) if there is nothing at that
+	 * target id.
+	 */
+	if (shost->transportt->target_parent) {
+		spin_lock_irqsave(shost->host_lock, flags);
+		parent = shost->transportt->target_parent(shost, channel, id);
+		spin_unlock_irqrestore(shost->host_lock, flags);
+		if (!parent)
+			return NULL;
+	}
+
+	starget = kmalloc(size, GFP_KERNEL);
 	if (!starget) {
 		printk(KERN_ERR "%s: allocation failure\n", __FUNCTION__);
 		return NULL;

drivers/scsi/scsi_transport_fc.c

@@ -1022,6 +1022,23 @@ static int fc_rport_match(struct attribute_container *cont,
 	return &i->rport_attr_cont.ac == cont;
 }
 
+
+/*
+ * Must be called with shost->host_lock held
+ */
+static struct device *fc_target_parent(struct Scsi_Host *shost,
+					int channel, uint id)
+{
+	struct fc_rport *rport;
+
+	list_for_each_entry(rport, &fc_host_rports(shost), peers)
+		if ((rport->channel == channel) &&
+		    (rport->scsi_target_id == id))
+			return &rport->dev;
+
+	return NULL;
+}
+
 struct scsi_transport_template *
 fc_attach_transport(struct fc_function_template *ft)
 {
@@ -1057,6 +1074,8 @@ fc_attach_transport(struct fc_function_template *ft)
 
 	/* Transport uses the shost workq for scsi scanning */
 	i->t.create_work_queue = 1;
+
+	i->t.target_parent = fc_target_parent;
 	
 	/*
 	 * Setup SCSI Target Attributes.

drivers/video/pxafb.c

@@ -717,6 +717,9 @@ static void pxafb_enable_controller(struct pxafb_info *fbi)
 	DPRINTK("reg_lccr2 0x%08x\n", (unsigned int) fbi->reg_lccr2);
 	DPRINTK("reg_lccr3 0x%08x\n", (unsigned int) fbi->reg_lccr3);
 
+	/* enable LCD controller clock */
+	pxa_set_cken(CKEN16_LCD, 1);
+
 	/* Sequence from 11.7.10 */
 	LCCR3 = fbi->reg_lccr3;
 	LCCR2 = fbi->reg_lccr2;
@@ -750,6 +753,9 @@ static void pxafb_disable_controller(struct pxafb_info *fbi)
 
 	schedule_timeout(20 * HZ / 1000);
 	remove_wait_queue(&fbi->ctrlr_wait, &wait);
+
+	/* disable LCD controller clock */
+	pxa_set_cken(CKEN16_LCD, 0);
 }
 
 /*
@@ -1299,8 +1305,6 @@ int __init pxafb_probe(struct device *dev)
 		ret = -ENOMEM;
 		goto failed;
 	}
-	/* enable LCD controller clock */
-	pxa_set_cken(CKEN16_LCD, 1);
 
 	ret = request_irq(IRQ_LCD, pxafb_handle_irq, SA_INTERRUPT, "LCD", fbi);
 	if (ret) {

drivers/w1/w1.c

@@ -593,7 +593,7 @@ void w1_search(struct w1_master *dev, w1_slave_found_callback cb)
 		 * Return 0 - device(s) present, 1 - no devices present.
 		 */
 		if (w1_reset_bus(dev)) {
-			dev_info(&dev->dev, "No devices present on the wire.\n");
+			dev_dbg(&dev->dev, "No devices present on the wire.\n");
 			break;
 		}
 

fs/reiserfs/namei.c

@@ -593,6 +593,9 @@ static int new_inode_init(struct inode *inode, struct inode *dir, int mode)
 	 */
 	inode->i_uid = current->fsuid;
 	inode->i_mode = mode;
+	/* Make inode invalid - just in case we are going to drop it before
+	 * the initialization happens */
+	INODE_PKEY(inode)->k_objectid = 0;
 
 	if (dir->i_mode & S_ISGID) {
 		inode->i_gid = dir->i_gid;

include/asm-arm/arch-s3c2410/usb-control.h

@@ -12,6 +12,7 @@
  * Changelog:
  *  11-Sep-2004 BJD  Created file
  *  21-Sep-2004 BJD  Updated port info
+ *  09-Aug-2005 BJD  Renamed s3c2410_report_oc s3c2410_usb_report_oc
 */
 
 #ifndef __ASM_ARCH_USBCONTROL_H
@@ -35,7 +36,7 @@ struct s3c2410_hcd_info {
 	void		(*report_oc)(struct s3c2410_hcd_info *, int ports);
 };
 
-static void inline s3c2410_report_oc(struct s3c2410_hcd_info *info, int ports)
+static void inline s3c2410_usb_report_oc(struct s3c2410_hcd_info *info, int ports)
 {
 	if (info->report_oc != NULL) {
 		(info->report_oc)(info, ports);

include/asm-arm/pgtable.h

@@ -188,12 +188,18 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
 /*
  *   - extended small page/tiny page
  */
+#define PTE_EXT_XN		(1 << 0)	/* v6 */
 #define PTE_EXT_AP_MASK		(3 << 4)
+#define PTE_EXT_AP0		(1 << 4)
+#define PTE_EXT_AP1		(2 << 4)
 #define PTE_EXT_AP_UNO_SRO	(0 << 4)
-#define PTE_EXT_AP_UNO_SRW	(1 << 4)
-#define PTE_EXT_AP_URO_SRW	(2 << 4)
-#define PTE_EXT_AP_URW_SRW	(3 << 4)
+#define PTE_EXT_AP_UNO_SRW	(PTE_EXT_AP0)
+#define PTE_EXT_AP_URO_SRW	(PTE_EXT_AP1)
+#define PTE_EXT_AP_URW_SRW	(PTE_EXT_AP1|PTE_EXT_AP0)
 #define PTE_EXT_TEX(x)		((x) << 6)	/* v5 */
+#define PTE_EXT_APX		(1 << 9)	/* v6 */
+#define PTE_EXT_SHARED		(1 << 10)	/* v6 */
+#define PTE_EXT_NG		(1 << 11)	/* v6 */
 
 /*
  *   - small page
@@ -224,6 +230,8 @@ extern void __pgd_error(const char *file, int line, unsigned long val);
 #define L_PTE_WRITE		(1 << 5)
 #define L_PTE_EXEC		(1 << 6)
 #define L_PTE_DIRTY		(1 << 7)
+#define L_PTE_SHARED		(1 << 10)	/* shared between CPUs (v6) */
+#define L_PTE_ASID		(1 << 11)	/* non-global (use ASID, v6) */
 
 #ifndef __ASSEMBLY__
 

include/asm-sh/unistd.h

@@ -406,7 +406,7 @@ register long __sc6 __asm__ ("r6") = (long) arg3; \
 register long __sc7 __asm__ ("r7") = (long) arg4; \
 register long __sc0 __asm__ ("r0") = (long) arg5; \
 register long __sc1 __asm__ ("r1") = (long) arg6; \
-__asm__ __volatile__ ("trapa	#0x15" \
+__asm__ __volatile__ ("trapa	#0x16" \
 	: "=z" (__sc0) \
 	: "0" (__sc0), "r" (__sc4), "r" (__sc5), "r" (__sc6), "r" (__sc7),  \
 	  "r" (__sc3), "r" (__sc1) \

include/linux/netpoll.h

@@ -9,6 +9,7 @@
 
 #include <linux/netdevice.h>
 #include <linux/interrupt.h>
+#include <linux/rcupdate.h>
 #include <linux/list.h>
 
 struct netpoll;
@@ -26,6 +27,7 @@ struct netpoll {
 struct netpoll_info {
 	spinlock_t poll_lock;
 	int poll_owner;
+	int tries;
 	int rx_flags;
 	spinlock_t rx_lock;
 	struct netpoll *rx_np; /* netpoll that registered an rx_hook */
@@ -60,25 +62,31 @@ static inline int netpoll_rx(struct sk_buff *skb)
 	return ret;
 }
 
-static inline void netpoll_poll_lock(struct net_device *dev)
+static inline void *netpoll_poll_lock(struct net_device *dev)
 {
+	rcu_read_lock(); /* deal with race on ->npinfo */
 	if (dev->npinfo) {
 		spin_lock(&dev->npinfo->poll_lock);
 		dev->npinfo->poll_owner = smp_processor_id();
+		return dev->npinfo;
 	}
+	return NULL;
 }
 
-static inline void netpoll_poll_unlock(struct net_device *dev)
+static inline void netpoll_poll_unlock(void *have)
 {
-	if (dev->npinfo) {
-		dev->npinfo->poll_owner = -1;
-		spin_unlock(&dev->npinfo->poll_lock);
+	struct netpoll_info *npi = have;
+
+	if (npi) {
+		npi->poll_owner = -1;
+		spin_unlock(&npi->poll_lock);
 	}
+	rcu_read_unlock();
 }
 
 #else
 #define netpoll_rx(a) 0
-#define netpoll_poll_lock(a)
+#define netpoll_poll_lock(a) 0
 #define netpoll_poll_unlock(a)
 #endif
 

include/linux/skbuff.h

@@ -255,7 +255,7 @@ struct sk_buff {
 				nohdr:1;
 				/* 3 bits spare */
 	__u8			pkt_type;
-	__u16			protocol;
+	__be16			protocol;
 
 	void			(*destructor)(struct sk_buff *skb);
 #ifdef CONFIG_NETFILTER

include/scsi/scsi_transport.h

@@ -29,6 +29,14 @@ struct scsi_transport_template {
 	struct transport_container target_attrs;
 	struct transport_container device_attrs;
 
+	/*
+	 * If set, call target_parent prior to allocating a scsi_target,
+	 * so we get the appropriate parent for the target. This function
+	 * is required for transports like FC and iSCSI that do not put the
+	 * scsi_target under scsi_host.
+	 */
+	struct device *(*target_parent)(struct Scsi_Host *, int, uint);
+
 	/* The size of the specific transport attribute structure (a
 	 * space of this size will be left at the end of the
 	 * scsi_* structure */

kernel/workqueue.c

@@ -308,8 +308,6 @@ struct workqueue_struct *__create_workqueue(const char *name,
 	struct workqueue_struct *wq;
 	struct task_struct *p;
 
-	BUG_ON(strlen(name) > 10);
-
 	wq = kmalloc(sizeof(*wq), GFP_KERNEL);
 	if (!wq)
 		return NULL;

net/core/dev.c

@@ -1696,7 +1696,8 @@ static void net_rx_action(struct softirq_action *h)
 	struct softnet_data *queue = &__get_cpu_var(softnet_data);
 	unsigned long start_time = jiffies;
 	int budget = netdev_budget;
-	
+	void *have;
+
 	local_irq_disable();
 
 	while (!list_empty(&queue->poll_list)) {
@@ -1709,10 +1710,10 @@ static void net_rx_action(struct softirq_action *h)
 
 		dev = list_entry(queue->poll_list.next,
 				 struct net_device, poll_list);
-		netpoll_poll_lock(dev);
+		have = netpoll_poll_lock(dev);
 
 		if (dev->quota <= 0 || dev->poll(dev, &budget)) {
-			netpoll_poll_unlock(dev);
+			netpoll_poll_unlock(have);
 			local_irq_disable();
 			list_del(&dev->poll_list);
 			list_add_tail(&dev->poll_list, &queue->poll_list);
@@ -1721,7 +1722,7 @@ static void net_rx_action(struct softirq_action *h)
 			else
 				dev->quota = dev->weight;
 		} else {
-			netpoll_poll_unlock(dev);
+			netpoll_poll_unlock(have);
 			dev_put(dev);
 			local_irq_disable();
 		}

net/core/netpoll.c

@@ -33,6 +33,7 @@
 #define MAX_UDP_CHUNK 1460
 #define MAX_SKBS 32
 #define MAX_QUEUE_DEPTH (MAX_SKBS / 2)
+#define MAX_RETRIES 20000
 
 static DEFINE_SPINLOCK(skb_list_lock);
 static int nr_skbs;
@@ -248,14 +249,14 @@ static void netpoll_send_skb(struct netpoll *np, struct sk_buff *skb)
 	int status;
 	struct netpoll_info *npinfo;
 
-repeat:
-	if(!np || !np->dev || !netif_running(np->dev)) {
+	if (!np || !np->dev || !netif_running(np->dev)) {
 		__kfree_skb(skb);
 		return;
 	}
 
-	/* avoid recursion */
 	npinfo = np->dev->npinfo;
+
+	/* avoid recursion */
 	if (npinfo->poll_owner == smp_processor_id() ||
 	    np->dev->xmit_lock_owner == smp_processor_id()) {
 		if (np->drop)
@@ -265,30 +266,37 @@ static void netpoll_send_skb(struct netpoll *np, struct sk_buff *skb)
 		return;
 	}
 
-	spin_lock(&np->dev->xmit_lock);
-	np->dev->xmit_lock_owner = smp_processor_id();
+	do {
+		npinfo->tries--;
+		spin_lock(&np->dev->xmit_lock);
+		np->dev->xmit_lock_owner = smp_processor_id();
 
-	/*
-	 * network drivers do not expect to be called if the queue is
-	 * stopped.
-	 */
-	if (netif_queue_stopped(np->dev)) {
+		/*
+		 * network drivers do not expect to be called if the queue is
+		 * stopped.
+		 */
+		if (netif_queue_stopped(np->dev)) {
+			np->dev->xmit_lock_owner = -1;
+			spin_unlock(&np->dev->xmit_lock);
+			netpoll_poll(np);
+			udelay(50);
+			continue;
+		}
+
+		status = np->dev->hard_start_xmit(skb, np->dev);
 		np->dev->xmit_lock_owner = -1;
 		spin_unlock(&np->dev->xmit_lock);
 
-		netpoll_poll(np);
-		goto repeat;
-	}
-
-	status = np->dev->hard_start_xmit(skb, np->dev);
-	np->dev->xmit_lock_owner = -1;
-	spin_unlock(&np->dev->xmit_lock);
+		/* success */
+		if(!status) {
+			npinfo->tries = MAX_RETRIES; /* reset */
+			return;
+		}
 
-	/* transmit busy */
-	if(status) {
+		/* transmit busy */
 		netpoll_poll(np);
-		goto repeat;
-	}
+		udelay(50);
+	} while (npinfo->tries > 0);
 }
 
 void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
@@ -349,15 +357,11 @@ static void arp_reply(struct sk_buff *skb)
 	unsigned char *arp_ptr;
 	int size, type = ARPOP_REPLY, ptype = ETH_P_ARP;
 	u32 sip, tip;
-	unsigned long flags;
 	struct sk_buff *send_skb;
 	struct netpoll *np = NULL;
 
-	spin_lock_irqsave(&npinfo->rx_lock, flags);
 	if (npinfo->rx_np && npinfo->rx_np->dev == skb->dev)
 		np = npinfo->rx_np;
-	spin_unlock_irqrestore(&npinfo->rx_lock, flags);
-
 	if (!np)
 		return;
 
@@ -639,9 +643,11 @@ int netpoll_setup(struct netpoll *np)
 		if (!npinfo)
 			goto release;
 
+		npinfo->rx_flags = 0;
 		npinfo->rx_np = NULL;
 		npinfo->poll_lock = SPIN_LOCK_UNLOCKED;
 		npinfo->poll_owner = -1;
+		npinfo->tries = MAX_RETRIES;
 		npinfo->rx_lock = SPIN_LOCK_UNLOCKED;
 	} else
 		npinfo = ndev->npinfo;
@@ -718,9 +724,16 @@ int netpoll_setup(struct netpoll *np)
 		npinfo->rx_np = np;
 		spin_unlock_irqrestore(&npinfo->rx_lock, flags);
 	}
+
+	/* fill up the skb queue */
+	refill_skbs();
+
 	/* last thing to do is link it to the net device structure */
 	ndev->npinfo = npinfo;
 
+	/* avoid racing with NAPI reading npinfo */
+	synchronize_rcu();
+
 	return 0;
 
  release:

net/decnet/af_decnet.c

@@ -1876,15 +1876,6 @@ static inline unsigned int dn_current_mss(struct sock *sk, int flags)
 	return mss_now;
 }
 
-static int dn_error(struct sock *sk, int flags, int err)
-{
-	if (err == -EPIPE)
-		err = sock_error(sk) ? : -EPIPE;
-	if (err == -EPIPE && !(flags & MSG_NOSIGNAL))
-		send_sig(SIGPIPE, current, 0);
-	return err;
-}
-
 static int dn_sendmsg(struct kiocb *iocb, struct socket *sock,
 	   struct msghdr *msg, size_t size)
 {
@@ -2045,7 +2036,7 @@ static int dn_sendmsg(struct kiocb *iocb, struct socket *sock,
 	return sent ? sent : err;
 
 out_err:
-	err = dn_error(sk, flags, err);
+	err = sk_stream_error(sk, flags, err);
 	release_sock(sk);
 	return err;
 }

net/ipv4/tcp_output.c

@@ -1370,15 +1370,21 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
 
 	if (skb->len > cur_mss) {
 		int old_factor = tcp_skb_pcount(skb);
-		int new_factor;
+		int diff;
 
 		if (tcp_fragment(sk, skb, cur_mss, cur_mss))
 			return -ENOMEM; /* We'll try again later. */
 
 		/* New SKB created, account for it. */
-		new_factor = tcp_skb_pcount(skb);
-		tp->packets_out -= old_factor - new_factor;
-		tp->packets_out += tcp_skb_pcount(skb->next);
+		diff = old_factor - tcp_skb_pcount(skb) -
+		       tcp_skb_pcount(skb->next);
+		tp->packets_out -= diff;
+
+		if (diff > 0) {
+			tp->fackets_out -= diff;
+			if ((int)tp->fackets_out < 0)
+				tp->fackets_out = 0;
+		}
 	}
 
 	/* Collapse two adjacent packets if worthwhile and we can. */