---

yaml
---
r: 180655
b: refs/heads/master
c: 0e2ecba
h: refs/heads/master
i:
  180653: be72837
  180651: d9fd202
  180647: 7da70c9
  180639: d2bd319
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: f04d5e012d73ea441bd39804ace39fd6d1ce5611
+refs/heads/master: 0e2ecbaefd219cb538aa7827f37da064d1a3328b

trunk/Documentation/kernel-parameters.txt

@@ -199,6 +199,10 @@ and is between 256 and 4096 characters. It is defined in the file
 			acpi_display_output=video
 			See above.
 
+	acpi_early_pdc_eval	[HW,ACPI] Evaluate processor _PDC methods
+				early. Needed on some platforms to properly
+				initialize the EC.
+
 	acpi_irq_balance [HW,ACPI]
 			ACPI will balance active IRQs
 			default in APIC mode

trunk/arch/ia64/include/asm/acpi.h

@@ -94,6 +94,7 @@ ia64_acpi_release_global_lock (unsigned int *lock)
 #define acpi_noirq 0	/* ACPI always enabled on IA64 */
 #define acpi_pci_disabled 0 /* ACPI PCI always enabled on IA64 */
 #define acpi_strict 1	/* no ACPI spec workarounds on IA64 */
+#define acpi_ht 0	/* no HT-only mode on IA64 */
 #endif
 #define acpi_processor_cstate_check(x) (x) /* no idle limits on IA64 :) */
 static inline void disable_acpi(void) { }

trunk/arch/ia64/include/asm/elf.h

@@ -201,7 +201,9 @@ extern void ia64_elf_core_copy_regs (struct pt_regs *src, elf_gregset_t dst);
    relevant until we have real hardware to play with... */
 #define ELF_PLATFORM	NULL
 
-#define SET_PERSONALITY(ex)	set_personality(PER_LINUX)
+#define SET_PERSONALITY(ex)	\
+	set_personality((current->personality & ~PER_MASK) | PER_LINUX)
+
 #define elf_read_implies_exec(ex, executable_stack)					\
 	((executable_stack!=EXSTACK_DISABLE_X) && ((ex).e_flags & EF_IA_64_LINUX_EXECUTABLE_STACK) != 0)
 

trunk/arch/sh/kernel/ptrace_64.c

@@ -133,13 +133,17 @@ void user_enable_single_step(struct task_struct *child)
 	struct pt_regs *regs = child->thread.uregs;
 
 	regs->sr |= SR_SSTEP;	/* auto-resetting upon exception */
+
+	set_tsk_thread_flag(child, TIF_SINGLESTEP);
 }
 
 void user_disable_single_step(struct task_struct *child)
 {
 	struct pt_regs *regs = child->thread.uregs;
 
 	regs->sr &= ~SR_SSTEP;
+
+	clear_tsk_thread_flag(child, TIF_SINGLESTEP);
 }
 
 static int genregs_get(struct task_struct *target,
@@ -454,15 +458,18 @@ asmlinkage long long do_syscall_trace_enter(struct pt_regs *regs)
 
 asmlinkage void do_syscall_trace_leave(struct pt_regs *regs)
 {
+	int step;
+
 	if (unlikely(current->audit_context))
 		audit_syscall_exit(AUDITSC_RESULT(regs->regs[9]),
 				   regs->regs[9]);
 
 	if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
 		trace_sys_exit(regs, regs->regs[9]);
 
-	if (test_thread_flag(TIF_SYSCALL_TRACE))
-		tracehook_report_syscall_exit(regs, 0);
+	step = test_thread_flag(TIF_SINGLESTEP);
+	if (step || test_thread_flag(TIF_SYSCALL_TRACE))
+		tracehook_report_syscall_exit(regs, step);
 }
 
 /* Called with interrupts disabled */

trunk/arch/sh/kernel/signal_64.c

@@ -118,7 +118,9 @@ static int do_signal(struct pt_regs *regs, sigset_t *oldset)
 			 * clear the TS_RESTORE_SIGMASK flag.
 			 */
 			current_thread_info()->status &= ~TS_RESTORE_SIGMASK;
-			tracehook_signal_handler(signr, &info, &ka, regs, 0);
+
+			tracehook_signal_handler(signr, &info, &ka, regs,
+					test_thread_flag(TIF_SINGLESTEP));
 			return 1;
 		}
 	}

trunk/arch/x86/include/asm/elf.h

@@ -170,10 +170,7 @@ static inline void elf_common_init(struct thread_struct *t,
 }
 
 #define ELF_PLAT_INIT(_r, load_addr)			\
-do {							\
-	elf_common_init(&current->thread, _r, 0);	\
-	clear_thread_flag(TIF_IA32);			\
-} while (0)
+	elf_common_init(&current->thread, _r, 0)
 
 #define	COMPAT_ELF_PLAT_INIT(regs, load_addr)		\
 	elf_common_init(&current->thread, regs, __USER_DS)

trunk/arch/x86/kernel/acpi/boot.c

@@ -1342,14 +1342,6 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
 		     DMI_MATCH(DMI_PRODUCT_NAME, "Workstation W8000"),
 		     },
 	 },
-	{
-	 .callback = force_acpi_ht,
-	 .ident = "ASUS P2B-DS",
-	 .matches = {
-		     DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
-		     DMI_MATCH(DMI_BOARD_NAME, "P2B-DS"),
-		     },
-	 },
 	{
 	 .callback = force_acpi_ht,
 	 .ident = "ASUS CUR-DLS",

trunk/arch/x86/kernel/process_64.c

@@ -527,6 +527,7 @@ void set_personality_ia32(void)
 
 	/* Make sure to be in 32bit mode */
 	set_thread_flag(TIF_IA32);
+	current->personality |= force_personality32;
 
 	/* Prepare the first "return" to user space */
 	current_thread_info()->status |= TS_COMPAT;

trunk/drivers/acpi/dock.c

@@ -935,6 +935,7 @@ static int dock_add(acpi_handle handle)
 	struct platform_device *dd;
 
 	id = dock_station_count;
+	memset(&ds, 0, sizeof(ds));
 	dd = platform_device_register_data(NULL, "dock", id, &ds, sizeof(ds));
 	if (IS_ERR(dd))
 		return PTR_ERR(dd);

trunk/drivers/acpi/processor_idle.c

@@ -110,6 +110,14 @@ static struct dmi_system_id __cpuinitdata processor_power_dmi_table[] = {
 	  DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),
 	  DMI_MATCH(DMI_BIOS_VERSION,"SHE845M0.86C.0013.D.0302131307")},
 	 (void *)2},
+	{ set_max_cstate, "Pavilion zv5000", {
+	  DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+	  DMI_MATCH(DMI_PRODUCT_NAME,"Pavilion zv5000 (DS502A#ABA)")},
+	 (void *)1},
+	{ set_max_cstate, "Asus L8400B", {
+	  DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+	  DMI_MATCH(DMI_PRODUCT_NAME,"L8400B series Notebook PC")},
+	 (void *)1},
 	{},
 };
 

trunk/drivers/acpi/processor_pdc.c

@@ -125,13 +125,18 @@ acpi_processor_eval_pdc(acpi_handle handle, struct acpi_object_list *pdc_in)
 	return status;
 }
 
+static int early_pdc_done;
+
 void acpi_processor_set_pdc(acpi_handle handle)
 {
 	struct acpi_object_list *obj_list;
 
 	if (arch_has_acpi_pdc() == false)
 		return;
 
+	if (early_pdc_done)
+		return;
+
 	obj_list = acpi_processor_alloc_pdc();
 	if (!obj_list)
 		return;
@@ -151,6 +156,13 @@ static int set_early_pdc_optin(const struct dmi_system_id *id)
 	return 0;
 }
 
+static int param_early_pdc_optin(char *s)
+{
+	early_pdc_optin = 1;
+	return 1;
+}
+__setup("acpi_early_pdc_eval", param_early_pdc_optin);
+
 static struct dmi_system_id __cpuinitdata early_pdc_optin_table[] = {
 	{
 	set_early_pdc_optin, "HP Envy", {
@@ -192,4 +204,6 @@ void __init acpi_early_processor_set_pdc(void)
 	acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
 			    ACPI_UINT32_MAX,
 			    early_init_pdc, NULL, NULL, NULL);
+
+	early_pdc_done = 1;
 }

trunk/drivers/acpi/scan.c

@@ -1336,9 +1336,25 @@ static int acpi_bus_scan(acpi_handle handle, struct acpi_bus_ops *ops,
 
 	if (child)
 		*child = device;
-	return 0;
+
+	if (device)
+		return 0;
+	else
+		return -ENODEV;
 }
 
+/*
+ * acpi_bus_add and acpi_bus_start
+ *
+ * scan a given ACPI tree and (probably recently hot-plugged)
+ * create and add or starts found devices.
+ *
+ * If no devices were found -ENODEV is returned which does not
+ * mean that this is a real error, there just have been no suitable
+ * ACPI objects in the table trunk from which the kernel could create
+ * a device and add/start an appropriate driver.
+ */
+
 int
 acpi_bus_add(struct acpi_device **child,
 	     struct acpi_device *parent, acpi_handle handle, int type)
@@ -1348,20 +1364,21 @@ acpi_bus_add(struct acpi_device **child,
 	memset(&ops, 0, sizeof(ops));
 	ops.acpi_op_add = 1;
 
-	acpi_bus_scan(handle, &ops, child);
-	return 0;
+	return acpi_bus_scan(handle, &ops, child);
 }
 EXPORT_SYMBOL(acpi_bus_add);
 
 int acpi_bus_start(struct acpi_device *device)
 {
 	struct acpi_bus_ops ops;
 
+	if (!device)
+		return -EINVAL;
+
 	memset(&ops, 0, sizeof(ops));
 	ops.acpi_op_start = 1;
 
-	acpi_bus_scan(device->handle, &ops, NULL);
-	return 0;
+	return acpi_bus_scan(device->handle, &ops, NULL);
 }
 EXPORT_SYMBOL(acpi_bus_start);
 

trunk/drivers/acpi/tables.c

@@ -213,7 +213,7 @@ acpi_table_parse_entries(char *id,
 	unsigned long table_end;
 	acpi_size tbl_size;
 
-	if (acpi_disabled)
+	if (acpi_disabled && !acpi_ht)
 		return -ENODEV;
 
 	if (!handler)
@@ -280,7 +280,7 @@ int __init acpi_table_parse(char *id, acpi_table_handler handler)
 	struct acpi_table_header *table = NULL;
 	acpi_size tbl_size;
 
-	if (acpi_disabled)
+	if (acpi_disabled && !acpi_ht)
 		return -ENODEV;
 
 	if (!handler)

trunk/drivers/base/class.c

@@ -59,6 +59,8 @@ static void class_release(struct kobject *kobj)
 	else
 		pr_debug("class '%s' does not have a release() function, "
 			 "be careful\n", class->name);
+
+	kfree(cp);
 }
 
 static struct sysfs_ops class_sysfs_ops = {

trunk/drivers/firewire/net.c

@@ -893,20 +893,31 @@ static void fwnet_receive_broadcast(struct fw_iso_context *context,
 
 static struct kmem_cache *fwnet_packet_task_cache;
 
+static void fwnet_free_ptask(struct fwnet_packet_task *ptask)
+{
+	dev_kfree_skb_any(ptask->skb);
+	kmem_cache_free(fwnet_packet_task_cache, ptask);
+}
+
 static int fwnet_send_packet(struct fwnet_packet_task *ptask);
 
 static void fwnet_transmit_packet_done(struct fwnet_packet_task *ptask)
 {
-	struct fwnet_device *dev;
+	struct fwnet_device *dev = ptask->dev;
 	unsigned long flags;
-
-	dev = ptask->dev;
+	bool free;
 
 	spin_lock_irqsave(&dev->lock, flags);
-	list_del(&ptask->pt_link);
-	spin_unlock_irqrestore(&dev->lock, flags);
 
-	ptask->outstanding_pkts--; /* FIXME access inside lock */
+	ptask->outstanding_pkts--;
+
+	/* Check whether we or the networking TX soft-IRQ is last user. */
+	free = (ptask->outstanding_pkts == 0 && !list_empty(&ptask->pt_link));
+
+	if (ptask->outstanding_pkts == 0)
+		list_del(&ptask->pt_link);
+
+	spin_unlock_irqrestore(&dev->lock, flags);
 
 	if (ptask->outstanding_pkts > 0) {
 		u16 dg_size;
@@ -951,10 +962,10 @@ static void fwnet_transmit_packet_done(struct fwnet_packet_task *ptask)
 			ptask->max_payload = skb->len + RFC2374_FRAG_HDR_SIZE;
 		}
 		fwnet_send_packet(ptask);
-	} else {
-		dev_kfree_skb_any(ptask->skb);
-		kmem_cache_free(fwnet_packet_task_cache, ptask);
 	}
+
+	if (free)
+		fwnet_free_ptask(ptask);
 }
 
 static void fwnet_write_complete(struct fw_card *card, int rcode,
@@ -977,6 +988,7 @@ static int fwnet_send_packet(struct fwnet_packet_task *ptask)
 	unsigned tx_len;
 	struct rfc2734_header *bufhdr;
 	unsigned long flags;
+	bool free;
 
 	dev = ptask->dev;
 	tx_len = ptask->max_payload;
@@ -1022,25 +1034,36 @@ static int fwnet_send_packet(struct fwnet_packet_task *ptask)
 				generation, SCODE_100, 0ULL, ptask->skb->data,
 				tx_len + 8, fwnet_write_complete, ptask);
 
-		/* FIXME race? */
 		spin_lock_irqsave(&dev->lock, flags);
-		list_add_tail(&ptask->pt_link, &dev->broadcasted_list);
+
+		/* If the AT tasklet already ran, we may be last user. */
+		free = (ptask->outstanding_pkts == 0 && list_empty(&ptask->pt_link));
+		if (!free)
+			list_add_tail(&ptask->pt_link, &dev->broadcasted_list);
+
 		spin_unlock_irqrestore(&dev->lock, flags);
 
-		return 0;
+		goto out;
 	}
 
 	fw_send_request(dev->card, &ptask->transaction,
 			TCODE_WRITE_BLOCK_REQUEST, ptask->dest_node,
 			ptask->generation, ptask->speed, ptask->fifo_addr,
 			ptask->skb->data, tx_len, fwnet_write_complete, ptask);
 
-	/* FIXME race? */
 	spin_lock_irqsave(&dev->lock, flags);
-	list_add_tail(&ptask->pt_link, &dev->sent_list);
+
+	/* If the AT tasklet already ran, we may be last user. */
+	free = (ptask->outstanding_pkts == 0 && list_empty(&ptask->pt_link));
+	if (!free)
+		list_add_tail(&ptask->pt_link, &dev->sent_list);
+
 	spin_unlock_irqrestore(&dev->lock, flags);
 
 	dev->netdev->trans_start = jiffies;
+ out:
+	if (free)
+		fwnet_free_ptask(ptask);
 
 	return 0;
 }
@@ -1298,6 +1321,8 @@ static netdev_tx_t fwnet_tx(struct sk_buff *skb, struct net_device *net)
 	spin_unlock_irqrestore(&dev->lock, flags);
 
 	ptask->max_payload = max_payload;
+	INIT_LIST_HEAD(&ptask->pt_link);
+
 	fwnet_send_packet(ptask);
 
 	return NETDEV_TX_OK;

trunk/drivers/firewire/ohci.c

@@ -2101,11 +2101,6 @@ static int ohci_queue_iso_transmit(struct fw_iso_context *base,
 	u32 payload_index, payload_end_index, next_page_index;
 	int page, end_page, i, length, offset;
 
-	/*
-	 * FIXME: Cycle lost behavior should be configurable: lose
-	 * packet, retransmit or terminate..
-	 */
-
 	p = packet;
 	payload_index = payload;
 
@@ -2135,6 +2130,14 @@ static int ohci_queue_iso_transmit(struct fw_iso_context *base,
 	if (!p->skip) {
 		d[0].control   = cpu_to_le16(DESCRIPTOR_KEY_IMMEDIATE);
 		d[0].req_count = cpu_to_le16(8);
+		/*
+		 * Link the skip address to this descriptor itself.  This causes
+		 * a context to skip a cycle whenever lost cycles or FIFO
+		 * overruns occur, without dropping the data.  The application
+		 * should then decide whether this is an error condition or not.
+		 * FIXME:  Make the context's cycle-lost behaviour configurable?
+		 */
+		d[0].branch_address = cpu_to_le32(d_bus | z);
 
 		header = (__le32 *) &d[1];
 		header[0] = cpu_to_le32(IT_HEADER_SY(p->sy) |