---

yaml
---
r: 87150
b: refs/heads/master
c: 7f5e4e8
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2b752acd91ecee926483b5f64a8f8bfe06e081fb
+refs/heads/master: 7f5e4e8d94b6013f93716bc42a1296f95d1059dc

trunk/Documentation/lguest/lguest.c

@@ -486,12 +486,9 @@ static void concat(char *dst, char *args[])
 	unsigned int i, len = 0;
 
 	for (i = 0; args[i]; i++) {
-		if (i) {
-			strcat(dst+len, " ");
-			len++;
-		}
 		strcpy(dst+len, args[i]);
-		len += strlen(args[i]);
+		strcat(dst+len, " ");
+		len += strlen(args[i]) + 1;
 	}
 	/* In case it's empty. */
 	dst[len] = '\0';

trunk/Documentation/pci.txt

@@ -123,7 +123,7 @@ initialization with a pointer to a structure describing the driver
 
 
 The ID table is an array of struct pci_device_id entries ending with an
-all-zero entry; use of the macro DEFINE_PCI_DEVICE_TABLE is the preferred
+all-zero entry; use of the macro DECLARE_PCI_DEVICE_TABLE is the preferred
 method of declaring the table.  Each entry consists of:
 
 	vendor,device	Vendor and device ID to match (or PCI_ANY_ID)
@@ -193,7 +193,7 @@ Tips on when/where to use the above attributes:
 	o Do not mark the struct pci_driver.
 
 	o The ID table array should be marked __devinitconst; this is done
-	  automatically if the table is declared with DEFINE_PCI_DEVICE_TABLE().
+	  automatically if the table is declared with DECLARE_PCI_DEVICE_TABLE().
 
 	o The probe() and remove() functions should be marked __devinit
 	  and __devexit respectively.  All initialization functions

trunk/Documentation/scheduler/sched-stats.txt

@@ -142,7 +142,7 @@ of idleness (idle, busy, and newly idle):
 
 /proc/<pid>/schedstat
 ----------------
-schedstats also adds a new /proc/<pid>/schedstat file to include some of
+schedstats also adds a new /proc/<pid/schedstat file to include some of
 the same information on a per-process level.  There are three fields in
 this file correlating for that process to:
      1) time spent on the cpu

trunk/Documentation/usb/usb-help.txt

@@ -1,5 +1,5 @@
 usb-help.txt
-2008-Mar-7
+2000-July-12
 
 For USB help other than the readme files that are located in
 Documentation/usb/*, see the following:
@@ -10,7 +10,9 @@ Linux-USB project:  http://www.linux-usb.org
 Linux USB Guide:    http://linux-usb.sourceforge.net
 Linux-USB device overview (working devices and drivers):
                     http://www.qbik.ch/usb/devices/
-
-The Linux-USB mailing list is at linux-usb@vger.kernel.org
+
+The Linux-USB mailing lists are:
+  linux-usb-users@lists.sourceforge.net   for general user help
+  linux-usb-devel@lists.sourceforge.net   for developer discussions
 
 ###

trunk/arch/x86/lguest/boot.c

@@ -84,6 +84,7 @@ struct lguest_data lguest_data = {
 	.blocked_interrupts = { 1 }, /* Block timer interrupts */
 	.syscall_vec = SYSCALL_VECTOR,
 };
+static cycle_t clock_base;
 
 /*G:037 async_hcall() is pretty simple: I'm quite proud of it really.  We have a
  * ring buffer of stored hypercalls which the Host will run though next time we
@@ -326,8 +327,8 @@ static void lguest_cpuid(unsigned int *ax, unsigned int *bx,
 	case 1:	/* Basic feature request. */
 		/* We only allow kernel to see SSE3, CMPXCHG16B and SSSE3 */
 		*cx &= 0x00002201;
-		/* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, TSC, FPU. */
-		*dx &= 0x07808111;
+		/* SSE, SSE2, FXSR, MMX, CMOV, CMPXCHG8B, FPU. */
+		*dx &= 0x07808101;
 		/* The Host can do a nice optimization if it knows that the
 		 * kernel mappings (addresses above 0xC0000000 or whatever
 		 * PAGE_OFFSET is set to) haven't changed.  But Linux calls
@@ -480,7 +481,7 @@ static void lguest_set_pmd(pmd_t *pmdp, pmd_t pmdval)
 {
 	*pmdp = pmdval;
 	lazy_hcall(LHCALL_SET_PMD, __pa(pmdp)&PAGE_MASK,
-		   (__pa(pmdp)&(PAGE_SIZE-1))/4, 0);
+		   (__pa(pmdp)&(PAGE_SIZE-1)), 0);
 }
 
 /* There are a couple of legacy places where the kernel sets a PTE, but we
@@ -594,25 +595,19 @@ static unsigned long lguest_get_wallclock(void)
 	return lguest_data.time.tv_sec;
 }
 
-/* The TSC is a Time Stamp Counter.  The Host tells us what speed it runs at,
- * or 0 if it's unusable as a reliable clock source.  This matches what we want
- * here: if we return 0 from this function, the x86 TSC clock will not register
- * itself. */
-static unsigned long lguest_cpu_khz(void)
-{
-	return lguest_data.tsc_khz;
-}
-
-/* If we can't use the TSC, the kernel falls back to our "lguest_clock", where
- * we read the time value given to us by the Host. */
 static cycle_t lguest_clock_read(void)
 {
 	unsigned long sec, nsec;
 
-	/* Since the time is in two parts (seconds and nanoseconds), we risk
-	 * reading it just as it's changing from 99 & 0.999999999 to 100 and 0,
-	 * and getting 99 and 0.  As Linux tends to come apart under the stress
-	 * of time travel, we must be careful: */
+	/* If the Host tells the TSC speed, we can trust that. */
+	if (lguest_data.tsc_khz)
+		return native_read_tsc();
+
+	/* If we can't use the TSC, we read the time value written by the Host.
+	 * Since it's in two parts (seconds and nanoseconds), we risk reading
+	 * it just as it's changing from 99 & 0.999999999 to 100 and 0, and
+	 * getting 99 and 0.  As Linux tends to come apart under the stress of
+	 * time travel, we must be careful: */
 	do {
 		/* First we read the seconds part. */
 		sec = lguest_data.time.tv_sec;
@@ -627,21 +622,27 @@ static cycle_t lguest_clock_read(void)
 		/* Now if the seconds part has changed, try again. */
 	} while (unlikely(lguest_data.time.tv_sec != sec));
 
-	/* Our lguest clock is in real nanoseconds. */
+	/* Our non-TSC clock is in real nanoseconds. */
 	return sec*1000000000ULL + nsec;
 }
 
-/* This is the fallback clocksource: lower priority than the TSC clocksource. */
+/* This is what we tell the kernel is our clocksource.  */
 static struct clocksource lguest_clock = {
 	.name		= "lguest",
-	.rating		= 200,
+	.rating		= 400,
 	.read		= lguest_clock_read,
 	.mask		= CLOCKSOURCE_MASK(64),
 	.mult		= 1 << 22,
 	.shift		= 22,
 	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
+/* The "scheduler clock" is just our real clock, adjusted to start at zero */
+static unsigned long long lguest_sched_clock(void)
+{
+	return cyc2ns(&lguest_clock, lguest_clock_read() - clock_base);
+}
+
 /* We also need a "struct clock_event_device": Linux asks us to set it to go
  * off some time in the future.  Actually, James Morris figured all this out, I
  * just applied the patch. */
@@ -711,8 +712,19 @@ static void lguest_time_init(void)
 	/* Set up the timer interrupt (0) to go to our simple timer routine */
 	set_irq_handler(0, lguest_time_irq);
 
+	/* Our clock structure looks like arch/x86/kernel/tsc_32.c if we can
+	 * use the TSC, otherwise it's a dumb nanosecond-resolution clock.
+	 * Either way, the "rating" is set so high that it's always chosen over
+	 * any other clocksource. */
+	if (lguest_data.tsc_khz)
+		lguest_clock.mult = clocksource_khz2mult(lguest_data.tsc_khz,
+							 lguest_clock.shift);
+	clock_base = lguest_clock_read();
 	clocksource_register(&lguest_clock);
 
+	/* Now we've set up our clock, we can use it as the scheduler clock */
+	pv_time_ops.sched_clock = lguest_sched_clock;
+
 	/* We can't set cpumask in the initializer: damn C limitations!  Set it
 	 * here and register our timer device. */
 	lguest_clockevent.cpumask = cpumask_of_cpu(0);
@@ -983,7 +995,6 @@ __init void lguest_init(void)
 	/* time operations */
 	pv_time_ops.get_wallclock = lguest_get_wallclock;
 	pv_time_ops.time_init = lguest_time_init;
-	pv_time_ops.get_cpu_khz = lguest_cpu_khz;
 
 	/* Now is a good time to look at the implementations of these functions
 	 * before returning to the rest of lguest_init(). */

trunk/arch/x86/pci/pcbios.c

@@ -198,11 +198,6 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
 			  "b" (bx),
 			  "D" ((long)reg),
 			  "S" (&pci_indirect));
-		/*
-		 * Zero-extend the result beyond 8 bits, do not trust the
-		 * BIOS having done it:
-		 */
-		*value &= 0xff;
 		break;
 	case 2:
 		__asm__("lcall *(%%esi); cld\n\t"
@@ -215,11 +210,6 @@ static int pci_bios_read(unsigned int seg, unsigned int bus,
 			  "b" (bx),
 			  "D" ((long)reg),
 			  "S" (&pci_indirect));
-		/*
-		 * Zero-extend the result beyond 16 bits, do not trust the
-		 * BIOS having done it:
-		 */
-		*value &= 0xffff;
 		break;
 	case 4:
 		__asm__("lcall *(%%esi); cld\n\t"

trunk/drivers/ata/libata-acpi.c

@@ -382,7 +382,7 @@ static int ata_dev_get_GTF(struct ata_device *dev, struct ata_acpi_gtf **gtf)
 
 	if (ata_msg_probe(ap))
 		ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER: port#: %d\n",
-			       __FUNCTION__, ap->port_no);
+			       __func__, ap->port_no);
 
 	/* _GTF has no input parameters */
 	status = acpi_evaluate_object(dev->acpi_handle, "_GTF", NULL, &output);
@@ -402,7 +402,7 @@ static int ata_dev_get_GTF(struct ata_device *dev, struct ata_acpi_gtf **gtf)
 		if (ata_msg_probe(ap))
 			ata_dev_printk(dev, KERN_DEBUG, "%s: Run _GTF: "
 				"length or ptr is NULL (0x%llx, 0x%p)\n",
-				__FUNCTION__,
+				__func__,
 				(unsigned long long)output.length,
 				output.pointer);
 		rc = -EINVAL;
@@ -432,7 +432,7 @@ static int ata_dev_get_GTF(struct ata_device *dev, struct ata_acpi_gtf **gtf)
 		if (ata_msg_probe(ap))
 			ata_dev_printk(dev, KERN_DEBUG,
 				       "%s: returning gtf=%p, gtf_count=%d\n",
-				       __FUNCTION__, *gtf, rc);
+				       __func__, *gtf, rc);
 	}
 	return rc;
 
@@ -725,7 +725,7 @@ static int ata_acpi_push_id(struct ata_device *dev)
 
 	if (ata_msg_probe(ap))
 		ata_dev_printk(dev, KERN_DEBUG, "%s: ix = %d, port#: %d\n",
-			       __FUNCTION__, dev->devno, ap->port_no);
+			       __func__, dev->devno, ap->port_no);
 
 	/* Give the drive Identify data to the drive via the _SDD method */
 	/* _SDD: set up input parameters */

trunk/drivers/ata/libata-core.c

@@ -1719,7 +1719,7 @@ void ata_port_flush_task(struct ata_port *ap)
 	cancel_rearming_delayed_work(&ap->port_task);
 
 	if (ata_msg_ctl(ap))
-		ata_port_printk(ap, KERN_DEBUG, "%s: EXIT\n", __FUNCTION__);
+		ata_port_printk(ap, KERN_DEBUG, "%s: EXIT\n", __func__);
 }
 
 static void ata_qc_complete_internal(struct ata_queued_cmd *qc)
@@ -2056,7 +2056,7 @@ int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
 	int rc;
 
 	if (ata_msg_ctl(ap))
-		ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER\n", __FUNCTION__);
+		ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER\n", __func__);
 
 	ata_dev_select(ap, dev->devno, 1, 1); /* select device 0/1 */
  retry:
@@ -2253,12 +2253,12 @@ int ata_dev_configure(struct ata_device *dev)
 
 	if (!ata_dev_enabled(dev) && ata_msg_info(ap)) {
 		ata_dev_printk(dev, KERN_INFO, "%s: ENTER/EXIT -- nodev\n",
-			       __FUNCTION__);
+			       __func__);
 		return 0;
 	}
 
 	if (ata_msg_probe(ap))
-		ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER\n", __FUNCTION__);
+		ata_dev_printk(dev, KERN_DEBUG, "%s: ENTER\n", __func__);
 
 	/* set horkage */
 	dev->horkage |= ata_dev_blacklisted(dev);
@@ -2279,7 +2279,7 @@ int ata_dev_configure(struct ata_device *dev)
 		ata_dev_printk(dev, KERN_DEBUG,
 			       "%s: cfg 49:%04x 82:%04x 83:%04x 84:%04x "
 			       "85:%04x 86:%04x 87:%04x 88:%04x\n",
-			       __FUNCTION__,
+			       __func__,
 			       id[49], id[82], id[83], id[84],
 			       id[85], id[86], id[87], id[88]);
 
@@ -2511,13 +2511,13 @@ int ata_dev_configure(struct ata_device *dev)
 
 	if (ata_msg_probe(ap))
 		ata_dev_printk(dev, KERN_DEBUG, "%s: EXIT, drv_stat = 0x%x\n",
-			__FUNCTION__, ata_chk_status(ap));
+			__func__, ata_chk_status(ap));
 	return 0;
 
 err_out_nosup:
 	if (ata_msg_probe(ap))
 		ata_dev_printk(dev, KERN_DEBUG,
-			       "%s: EXIT, err\n", __FUNCTION__);
+			       "%s: EXIT, err\n", __func__);
 	return rc;
 }
 

trunk/drivers/ata/pata_pdc2027x.c

@@ -39,7 +39,7 @@
 #undef PDC_DEBUG
 
 #ifdef PDC_DEBUG
-#define PDPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __FUNCTION__, ## args)
+#define PDPRINTK(fmt, args...) printk(KERN_ERR "%s: " fmt, __func__, ## args)
 #else
 #define PDPRINTK(fmt, args...)
 #endif

trunk/drivers/base/platform.c

@@ -648,7 +648,7 @@ u64 dma_get_required_mask(struct device *dev)
 		high_totalram += high_totalram - 1;
 		mask = (((u64)high_totalram) << 32) + 0xffffffff;
 	}
-	return mask;
+	return mask & *dev->dma_mask;
 }
 EXPORT_SYMBOL_GPL(dma_get_required_mask);
 #endif

trunk/drivers/base/sys.c

@@ -133,7 +133,6 @@ int sysdev_class_register(struct sysdev_class * cls)
 	pr_debug("Registering sysdev class '%s'\n",
 		 kobject_name(&cls->kset.kobj));
 	INIT_LIST_HEAD(&cls->drivers);
-	memset(&cls->kset.kobj, 0x00, sizeof(struct kobject));
 	cls->kset.kobj.parent = &system_kset->kobj;
 	cls->kset.kobj.ktype = &ktype_sysdev_class;
 	cls->kset.kobj.kset = system_kset;
@@ -228,9 +227,6 @@ int sysdev_register(struct sys_device * sysdev)
 
 	pr_debug("Registering sys device '%s'\n", kobject_name(&sysdev->kobj));
 
-	/* initialize the kobject to 0, in case it had previously been used */
-	memset(&sysdev->kobj, 0x00, sizeof(struct kobject));
-
 	/* Make sure the kset is set */
 	sysdev->kobj.kset = &cls->kset;