Linux 5.4.174

index ee949255ced3..09ef73b99dd8 100644
@@ -154,8 +154,10 @@ static int __init rcar_gen2_regulator_quirk(void)
 		return -ENODEV;
 
 	for_each_matching_node_and_match(np, rcar_gen2_quirk_match, &id) {
-		if (!of_device_is_available(np))
+		if (!of_device_is_available(np)) {
+			of_node_put(np);
 			break;
+		}
 
 		ret = of_property_read_u32(np, "reg", &addr);
 		if (ret)	/* Skip invalid entry and continue */

@@ -164,6 +166,7 @@ static int __init rcar_gen2_regulator_quirk(void)
 		quirk = kzalloc(sizeof(*quirk), GFP_KERNEL);
 		if (!quirk) {
 			ret = -ENOMEM;
+			of_node_put(np);
 			goto err_mem;
 		}
 

92 lines not on this page · raw message

index aba6e2d6a736..dcfa0ea912fe 100644
@@ -387,6 +387,12 @@ struct clk *clk_get_parent(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_get_parent);
 
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
 unsigned long clk_get_rate(struct clk *clk)
 {
 	if (!clk)

index 51685f893eab..c214fe4e678b 100644
@@ -328,6 +328,7 @@ static int __init octeon_ehci_device_init(void)
 
 	pd->dev.platform_data = &octeon_ehci_pdata;
 	octeon_ehci_hw_start(&pd->dev);
+	put_device(&pd->dev);
 
 	return ret;
 }

@@ -391,6 +392,7 @@ static int __init octeon_ohci_device_init(void)
 
 	pd->dev.platform_data = &octeon_ohci_pdata;
 	octeon_ohci_hw_start(&pd->dev);
+	put_device(&pd->dev);
 
 	return ret;
 }

index 4017398519cf..e092d86e6358 100644
@@ -544,6 +544,7 @@ static int __init dwc3_octeon_device_init(void)
 			devm_iounmap(&pdev->dev, base);
 			devm_release_mem_region(&pdev->dev, res->start,
 						resource_size(res));
+			put_device(&pdev->dev);
 		}
 	} while (node != NULL);
 

index 62787765575e..ce6e5fddce0b 100644
@@ -315,7 +315,7 @@ enum cvmx_chip_types_enum {
 
 /* Functions to return string based on type */
 #define ENUM_BRD_TYPE_CASE(x) \
-	case x: return(#x + 16);	/* Skip CVMX_BOARD_TYPE_ */
+	case x: return (&#x[16]);	/* Skip CVMX_BOARD_TYPE_ */
 static inline const char *cvmx_board_type_to_string(enum
 						    cvmx_board_types_enum type)
 {

@@ -404,7 +404,7 @@ static inline const char *cvmx_board_type_to_string(enum
 }
 
 #define ENUM_CHIP_TYPE_CASE(x) \
-	case x: return(#x + 15);	/* Skip CVMX_CHIP_TYPE */
+	case x: return (&#x[15]);	/* Skip CVMX_CHIP_TYPE */
 static inline const char *cvmx_chip_type_to_string(enum
 						   cvmx_chip_types_enum type)
 {

index 4916cccf378f..7a623684d9b5 100644
@@ -164,6 +164,12 @@ struct clk *clk_get_parent(struct clk *clk)
 }
 EXPORT_SYMBOL(clk_get_parent);
 
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
 static inline u32 get_counter_resolution(void)
 {
 	u32 res;

index 82fc01189488..2a1060d747a5 100644
@@ -783,7 +783,7 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
 	     * unless pagefault_disable() was called before.
 	     */
 
-	    if (fault_space == 0 && !faulthandler_disabled())
+	    if (faulthandler_disabled() || fault_space == 0)
 	    {
 		/* Clean up and return if in exception table. */
 		if (fixup_exception(regs))

index 6dfceaa820e4..b0e0b3cd91ee 100644
@@ -250,8 +250,10 @@ int __init btext_find_display(int allow_nonstdout)
 			rc = btext_initialize(np);
 			printk("result: %d\n", rc);
 		}
-		if (rc == 0)
+		if (rc == 0) {
+			of_node_put(np);
 			break;
+		}
 	}
 	return rc;
 }

index 1b65fb7c0bda..7f4e2c031a9a 100644
@@ -2919,7 +2919,7 @@ static void __init fixup_device_tree_efika_add_phy(void)
 
 	/* Check if the phy-handle property exists - bail if it does */
 	rv = prom_getprop(node, "phy-handle", prop, sizeof(prop));
-	if (!rv)
+	if (rv <= 0)
 		return;
 
 	/*

index c06cac543f18..4de63ec2e155 100644
@@ -582,6 +582,36 @@ void crash_send_ipi(void (*crash_ipi_callback)(struct pt_regs *))
 }
 #endif
 
+#ifdef CONFIG_NMI_IPI
+static void crash_stop_this_cpu(struct pt_regs *regs)
+#else
+static void crash_stop_this_cpu(void *dummy)
+#endif
+{
+	/*
+	 * Just busy wait here and avoid marking CPU as offline to ensure
+	 * register data is captured appropriately.
+	 */
+	while (1)
+		cpu_relax();
+}
+
+void crash_smp_send_stop(void)
+{
+	static bool stopped = false;
+
+	if (stopped)
+		return;
+
+	stopped = true;
+
+#ifdef CONFIG_NMI_IPI
+	smp_send_nmi_ipi(NMI_IPI_ALL_OTHERS, crash_stop_this_cpu, 1000000);
+#else
+	smp_call_function(crash_stop_this_cpu, NULL, 0);
+#endif /* CONFIG_NMI_IPI */
+}
+
 #ifdef CONFIG_NMI_IPI
 static void nmi_stop_this_cpu(struct pt_regs *regs)
 {

@@ -1296,10 +1326,12 @@ void start_secondary(void *unused)
 	BUG();
 }
 
+#ifdef CONFIG_PROFILING
 int setup_profiling_timer(unsigned int multiplier)
 {
 	return 0;
 }
+#endif
 
 #ifdef CONFIG_SCHED_SMT
 /* cpumask of CPUs with asymetric SMT dependancy */

67 lines not on this page · raw message

index 9906d203d9d3..613d24b707ab 100644
@@ -510,7 +510,7 @@ long kvmhv_copy_tofrom_guest_nested(struct kvm_vcpu *vcpu)
 	if (eaddr & (0xFFFUL << 52))
 		return H_PARAMETER;
 
-	buf = kzalloc(n, GFP_KERNEL);
+	buf = kzalloc(n, GFP_KERNEL | __GFP_NOWARN);
 	if (!buf)
 		return H_NO_MEM;
 

index ca9ffc1c8685..a6a60e2b8f45 100644
@@ -976,6 +976,7 @@ static int __init cell_iommu_fixed_mapping_init(void)
 			if (hbase < dbase || (hend > (dbase + dsize))) {
 				pr_debug("iommu: hash window doesn't fit in"
 					 "real DMA window\n");
+				of_node_put(np);
 				return -1;
 			}
 		}

index 6af3a6e600a7..80c9c4d71550 100644
@@ -77,6 +77,7 @@ static int cbe_system_reset_exception(struct pt_regs *regs)
 	switch (regs->msr & SRR1_WAKEMASK) {
 	case SRR1_WAKEDEC:
 		set_dec(1);
+		break;
 	case SRR1_WAKEEE:
 		/*
 		 * Handle these when interrupts get re-enabled and we take

index a1b7f79a8a15..de10c13de15c 100644
@@ -215,6 +215,7 @@ void hlwd_pic_probe(void)
 			irq_set_chained_handler(cascade_virq,
 						hlwd_pic_irq_cascade);
 			hlwd_irq_host = host;
+			of_node_put(np);
 			break;
 		}
 	}

index bf4be4b53b44..210435a43bf9 100644
@@ -582,6 +582,7 @@ static void __init kw_i2c_add(struct pmac_i2c_host_kw *host,
 	bus->close = kw_i2c_close;
 	bus->xfer = kw_i2c_xfer;
 	mutex_init(&bus->mutex);
+	lockdep_register_key(&bus->lock_key);
 	lockdep_set_class(&bus->mutex, &bus->lock_key);
 	if (controller == busnode)
 		bus->flags = pmac_i2c_multibus;

@@ -811,6 +812,7 @@ static void __init pmu_i2c_probe(void)
 		bus->hostdata = bus + 1;
 		bus->xfer = pmu_i2c_xfer;
 		mutex_init(&bus->mutex);
+		lockdep_register_key(&bus->lock_key);
 		lockdep_set_class(&bus->mutex, &bus->lock_key);
 		bus->flags = pmac_i2c_multibus;
 		list_add(&bus->link, &pmac_i2c_busses);

@@ -934,6 +936,7 @@ static void __init smu_i2c_probe(void)
 		bus->hostdata = bus + 1;
 		bus->xfer = smu_i2c_xfer;
 		mutex_init(&bus->mutex);
+		lockdep_register_key(&bus->lock_key);
 		lockdep_set_class(&bus->mutex, &bus->lock_key);
 		bus->flags = 0;
 		list_add(&bus->link, &pmac_i2c_busses);

index 608569082ba0..123a0e799b7b 100644
@@ -396,6 +396,7 @@ void __init opal_lpc_init(void)
 		if (!of_get_property(np, "primary", NULL))
 			continue;
 		opal_lpc_chip_id = of_get_ibm_chip_id(np);
+		of_node_put(np);
 		break;
 	}
 	if (opal_lpc_chip_id < 0)

index 46071be897ab..90943bf3e5ee 100644
@@ -255,13 +255,15 @@ void page_table_free(struct mm_struct *mm, unsigned long *table)
 		/* Free 2K page table fragment of a 4K page */
 		bit = (__pa(table) & ~PAGE_MASK)/(PTRS_PER_PTE*sizeof(pte_t));
 		spin_lock_bh(&mm->context.lock);
-		mask = atomic_xor_bits(&page->_refcount, 1U << (bit + 24));
+		mask = atomic_xor_bits(&page->_refcount, 0x11U << (bit + 24));
 		mask >>= 24;
 		if (mask & 3)
 			list_add(&page->lru, &mm->context.pgtable_list);
 		else
 			list_del(&page->lru);
 		spin_unlock_bh(&mm->context.lock);
+		mask = atomic_xor_bits(&page->_refcount, 0x10U << (bit + 24));
+		mask >>= 24;
 		if (mask != 0)
 			return;
 	} else {

index 0c50fa6e8a55..fbb709a22283 100644
@@ -16,8 +16,8 @@ extern int restore_fp_registers(int pid, unsigned long *fp_regs);
 extern int save_fpx_registers(int pid, unsigned long *fp_regs);
 extern int restore_fpx_registers(int pid, unsigned long *fp_regs);
 extern int save_registers(int pid, struct uml_pt_regs *regs);
-extern int restore_registers(int pid, struct uml_pt_regs *regs);
-extern int init_registers(int pid);
+extern int restore_pid_registers(int pid, struct uml_pt_regs *regs);
+extern int init_pid_registers(int pid);
 extern void get_safe_registers(unsigned long *regs, unsigned long *fp_regs);
 extern unsigned long get_thread_reg(int reg, jmp_buf *buf);
 extern int get_fp_registers(int pid, unsigned long *regs);

index 2d9270508e15..b123955be7ac 100644
@@ -21,7 +21,7 @@ int save_registers(int pid, struct uml_pt_regs *regs)
 	return 0;
 }
 
-int restore_registers(int pid, struct uml_pt_regs *regs)
+int restore_pid_registers(int pid, struct uml_pt_regs *regs)
 {
 	int err;
 

@@ -36,7 +36,7 @@ int restore_registers(int pid, struct uml_pt_regs *regs)
 static unsigned long exec_regs[MAX_REG_NR];
 static unsigned long exec_fp_regs[FP_SIZE];
 
-int init_registers(int pid)
+int init_pid_registers(int pid)
 {
 	int err;
 

index f79dc338279e..b28373a2b8d2 100644
@@ -336,7 +336,7 @@ void __init os_early_checks(void)
 	check_tmpexec();
 
 	pid = start_ptraced_child();
-	if (init_registers(pid))
+	if (init_pid_registers(pid))
 		fatal("Failed to initialize default registers");
 	stop_ptraced_child(pid, 1, 1);
 }

index 09ecc32f6524..52d7512ea91a 100644
@@ -82,6 +82,7 @@ static inline void set_real_mode_mem(phys_addr_t mem)
 }
 
 void reserve_real_mode(void);
+void load_trampoline_pgtable(void);
 
 #endif /* __ASSEMBLY__ */
 

index c2a9762d278d..8a2b8e791314 100644
@@ -310,11 +310,17 @@ static void wait_for_panic(void)
 	panic("Panicing machine check CPU died");
 }
 
-static void mce_panic(const char *msg, struct mce *final, char *exp)
+static noinstr void mce_panic(const char *msg, struct mce *final, char *exp)
 {
-	int apei_err = 0;
 	struct llist_node *pending;
 	struct mce_evt_llist *l;
+	int apei_err = 0;
+
+	/*
+	 * Allow instrumentation around external facilities usage. Not that it
+	 * matters a whole lot since the machine is going to panic anyway.
+	 */
+	instrumentation_begin();
 
 	if (!fake_panic) {
 		/*

@@ -329,7 +335,7 @@ static void mce_panic(const char *msg, struct mce *final, char *exp)
 	} else {
 		/* Don't log too much for fake panic */
 		if (atomic_inc_return(&mce_fake_panicked) > 1)
-			return;
+			goto out;
 	}
 	pending = mce_gen_pool_prepare_records();
 	/* First print corrected ones that are still unlogged */

@@ -367,6 +373,9 @@ static void mce_panic(const char *msg, struct mce *final, char *exp)
 		panic(msg);
 	} else
 		pr_emerg(HW_ERR "Fake kernel panic: %s\n", msg);
+
+out:
+	instrumentation_end();
 }
 
 /* Support code for software error injection */

@@ -691,7 +700,7 @@ static struct notifier_block mce_default_nb = {
 /*
  * Read ADDR and MISC registers.
  */
-static void mce_read_aux(struct mce *m, int i)
+static noinstr void mce_read_aux(struct mce *m, int i)
 {
 	if (m->status & MCI_STATUS_MISCV)
 		m->misc = mce_rdmsrl(msr_ops.misc(i));

@@ -1071,10 +1080,13 @@ static int mce_start(int *no_way_out)
  * Synchronize between CPUs after main scanning loop.
  * This invokes the bulk of the Monarch processing.
  */
-static int mce_end(int order)
+static noinstr int mce_end(int order)
 {
-	int ret = -1;
 	u64 timeout = (u64)mca_cfg.monarch_timeout * NSEC_PER_USEC;
+	int ret = -1;
+
+	/* Allow instrumentation around external facilities. */
+	instrumentation_begin();
 
 	if (!timeout)
 		goto reset;

@@ -1118,7 +1130,8 @@ static int mce_end(int order)
 		/*
 		 * Don't reset anything. That's done by the Monarch.
 		 */
-		return 0;
+		ret = 0;
+		goto out;
 	}
 
 	/*

@@ -1133,6 +1146,10 @@ static int mce_end(int order)
 	 * Let others run again.
 	 */
 	atomic_set(&mce_executing, 0);
+
+out:
+	instrumentation_end();
+
 	return ret;
 }
 

index eb2d41c1816d..e1fda5b19b6f 100644
@@ -347,7 +347,7 @@ static ssize_t flags_write(struct file *filp, const char __user *ubuf,
 	char buf[MAX_FLAG_OPT_SIZE], *__buf;
 	int err;
 
-	if (cnt > MAX_FLAG_OPT_SIZE)
+	if (!cnt || cnt > MAX_FLAG_OPT_SIZE)
 		return -EINVAL;
 
 	if (copy_from_user(&buf, ubuf, cnt))

index 6f6b1d04dadf..50225bc0383b 100644
@@ -515,6 +515,7 @@ static const struct intel_early_ops gen11_early_ops __initconst = {
 	.stolen_size = gen9_stolen_size,
 };
 
+/* Intel integrated GPUs for which we need to reserve "stolen memory" */
 static const struct pci_device_id intel_early_ids[] __initconst = {
 	INTEL_I830_IDS(&i830_early_ops),
 	INTEL_I845G_IDS(&i845_early_ops),

@@ -587,6 +588,13 @@ static void __init intel_graphics_quirks(int num, int slot, int func)
 	u16 device;
 	int i;
 
+	/*
+	 * Reserve "stolen memory" for an integrated GPU.  If we've already
+	 * found one, there's nothing to do for other (discrete) GPUs.
+	 */
+	if (resource_size(&intel_graphics_stolen_res))
+		return;
+
 	device = read_pci_config_16(num, slot, func, PCI_DEVICE_ID);
 
 	for (i = 0; i < ARRAY_SIZE(intel_early_ids); i++) {

@@ -699,7 +707,7 @@ static struct chipset early_qrk[] __initdata = {
 	{ PCI_VENDOR_ID_INTEL, 0x3406, PCI_CLASS_BRIDGE_HOST,
 	  PCI_BASE_CLASS_BRIDGE, 0, intel_remapping_check },
 	{ PCI_VENDOR_ID_INTEL, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA, PCI_ANY_ID,
-	  QFLAG_APPLY_ONCE, intel_graphics_quirks },
+	  0, intel_graphics_quirks },
 	/*
 	 * HPET on the current version of the Baytrail platform has accuracy
 	 * problems: it will halt in deep idle state - so we disable it.

index d65d1afb2716..fdef27a84d71 100644
@@ -113,17 +113,9 @@ void __noreturn machine_real_restart(unsigned int type)
 	spin_unlock(&rtc_lock);
 
 	/*
-	 * Switch back to the initial page table.
+	 * Switch to the trampoline page table.
 	 */
-#ifdef CONFIG_X86_32
-	load_cr3(initial_page_table);
-#else
-	write_cr3(real_mode_header->trampoline_pgd);
-
-	/* Exiting long mode will fail if CR4.PCIDE is set. */
-	if (boot_cpu_has(X86_FEATURE_PCID))
-		cr4_clear_bits(X86_CR4_PCIDE);
-#endif
+	load_trampoline_pgtable();
 
 	/* Jump to the identity-mapped low memory code */
 #ifdef CONFIG_X86_32

index de371e52cfa8..fac50ebb122b 100644
@@ -16,6 +16,32 @@ u32 *trampoline_cr4_features;
 /* Hold the pgd entry used on booting additional CPUs */
 pgd_t trampoline_pgd_entry;
 
+void load_trampoline_pgtable(void)
+{
+#ifdef CONFIG_X86_32
+	load_cr3(initial_page_table);
+#else
+	/*
+	 * This function is called before exiting to real-mode and that will
+	 * fail with CR4.PCIDE still set.
+	 */
+	if (boot_cpu_has(X86_FEATURE_PCID))
+		cr4_clear_bits(X86_CR4_PCIDE);
+
+	write_cr3(real_mode_header->trampoline_pgd);
+#endif
+
+	/*
+	 * The CR3 write above will not flush global TLB entries.
+	 * Stale, global entries from previous page tables may still be
+	 * present.  Flush those stale entries.
+	 *
+	 * This ensures that memory accessed while running with
+	 * trampoline_pgd is *actually* mapped into trampoline_pgd.
+	 */
+	__flush_tlb_all();
+}
+
 void __init reserve_real_mode(void)
 {
 	phys_addr_t mem;

index 58f51667e2e4..8249685b4096 100644
@@ -11,6 +11,7 @@
 #include <linux/uaccess.h>
 #include <asm/prctl.h> /* XXX This should get the constants from libc */
 #include <os.h>
+#include <registers.h>
 
 long arch_prctl(struct task_struct *task, int option,
 		unsigned long __user *arg2)

@@ -35,7 +36,7 @@ long arch_prctl(struct task_struct *task, int option,
 	switch (option) {
 	case ARCH_SET_FS:
 	case ARCH_SET_GS:
-		ret = restore_registers(pid, &current->thread.regs.regs);
+		ret = restore_pid_registers(pid, &current->thread.regs.regs);
 		if (ret)
 			return ret;
 		break;

index d3d2dbfba680..cd3debefe990 100644
@@ -320,12 +320,7 @@ acpi_ex_write_data_to_field(union acpi_operand_object *source_desc,
 		       obj_desc->field.base_byte_offset,
 		       source_desc->buffer.pointer, data_length);
 
-		if ((obj_desc->field.region_obj->region.address ==
-		     PCC_MASTER_SUBSPACE
-		     && MASTER_SUBSPACE_COMMAND(obj_desc->field.
-						base_byte_offset))
-		    || GENERIC_SUBSPACE_COMMAND(obj_desc->field.
-						base_byte_offset)) {
+		if (MASTER_SUBSPACE_COMMAND(obj_desc->field.base_byte_offset)) {
 
 			/* Perform the write */
 

index 06e35ea09823..6d84618ba387 100644
@@ -1007,7 +1007,8 @@ acpi_status acpi_ex_opcode_1A_0T_1R(struct acpi_walk_state *walk_state)
 						    (walk_state, return_desc,
 						     &temp_desc);
 						if (ACPI_FAILURE(status)) {
-							goto cleanup;
+							return_ACPI_STATUS
+							    (status);
 						}
 
 						return_desc = temp_desc;

index aa502ae3b6b3..de0a59878e52 100644
@@ -104,7 +104,9 @@ acpi_status acpi_hw_extended_sleep(u8 sleep_state)
 
 	/* Flush caches, as per ACPI specification */
 
-	ACPI_FLUSH_CPU_CACHE();
+	if (sleep_state < ACPI_STATE_S4) {
+		ACPI_FLUSH_CPU_CACHE();
+	}
 
 	status = acpi_os_enter_sleep(sleep_state, sleep_control, 0);
 	if (status == AE_CTRL_TERMINATE) {

index 5f7d63badbe9..321aaad97e2f 100644
@@ -110,7 +110,9 @@ acpi_status acpi_hw_legacy_sleep(u8 sleep_state)
 
 	/* Flush caches, as per ACPI specification */
 
-	ACPI_FLUSH_CPU_CACHE();
+	if (sleep_state < ACPI_STATE_S4) {
+		ACPI_FLUSH_CPU_CACHE();
+	}
 
 	status = acpi_os_enter_sleep(sleep_state, pm1a_control, pm1b_control);
 	if (status == AE_CTRL_TERMINATE) {

index 79731efbe8fe..4e3398819718 100644
@@ -162,8 +162,6 @@ acpi_status acpi_enter_sleep_state_s4bios(void)
 		return_ACPI_STATUS(status);
 	}
 
-	ACPI_FLUSH_CPU_CACHE();
-
 	status = acpi_hw_write_port(acpi_gbl_FADT.smi_command,
 				    (u32)acpi_gbl_FADT.s4_bios_request, 8);
 

index 72d2c0b65633..cb1750e7a628 100644
@@ -422,6 +422,7 @@ acpi_ut_update_ref_count(union acpi_operand_object *object, u32 action)
 			ACPI_WARNING((AE_INFO,
 				      "Obj %p, Reference Count is already zero, cannot decrement\n",
 				      object));
+			return;
 		}
 
 		ACPI_DEBUG_PRINT_RAW((ACPI_DB_ALLOCATIONS,

index 6e96ed68b337..4e0aea5f008e 100644
@@ -65,6 +65,7 @@ static int battery_bix_broken_package;
 static int battery_notification_delay_ms;
 static int battery_ac_is_broken;
 static int battery_check_pmic = 1;
+static int battery_quirk_notcharging;
 static unsigned int cache_time = 1000;
 module_param(cache_time, uint, 0644);
 MODULE_PARM_DESC(cache_time, "cache time in milliseconds");

@@ -233,6 +234,8 @@ static int acpi_battery_get_property(struct power_supply *psy,
 			val->intval = POWER_SUPPLY_STATUS_CHARGING;
 		else if (acpi_battery_is_charged(battery))
 			val->intval = POWER_SUPPLY_STATUS_FULL;
+		else if (battery_quirk_notcharging)
+			val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
 		else
 			val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
 		break;

@@ -1337,6 +1340,12 @@ battery_do_not_check_pmic_quirk(const struct dmi_system_id *d)
 	return 0;
 }
 
+static int __init battery_quirk_not_charging(const struct dmi_system_id *d)
+{
+	battery_quirk_notcharging = 1;
+	return 0;
+}
+
 static const struct dmi_system_id bat_dmi_table[] __initconst = {
 	{
 		/* NEC LZ750/LS */

@@ -1381,6 +1390,19 @@ static const struct dmi_system_id bat_dmi_table[] __initconst = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
 		},
 	},
+	{
+		/*
+		 * On Lenovo ThinkPads the BIOS specification defines
+		 * a state when the bits for charging and discharging
+		 * are both set to 0. That state is "Not Charging".
+		 */
+		.callback = battery_quirk_not_charging,
+		.ident = "Lenovo ThinkPad",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+			DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad"),
+		},
+	},
 	{},
 };
 

139 lines not on this page · raw message

index 159c422601bc..62b6b36f3a37 100644
@@ -183,6 +183,8 @@ struct acpi_ec {
 	struct work_struct work;
 	unsigned long timestamp;
 	unsigned long nr_pending_queries;
+	unsigned int events_in_progress;
+	unsigned int queries_in_progress;
 	bool busy_polling;
 	unsigned int polling_guard;
 };

index 95d119ff76b6..5d4be80ee6cb 100644
@@ -1577,6 +1577,7 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
 {
 	struct list_head resource_list;
 	bool is_serial_bus_slave = false;
+	static const struct acpi_device_id ignore_serial_bus_ids[] = {
 	/*
 	 * These devices have multiple I2cSerialBus resources and an i2c-client
 	 * must be instantiated for each, each with its own i2c_device_id.

@@ -1585,11 +1586,18 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
 	 * drivers/platform/x86/i2c-multi-instantiate.c driver, which knows
 	 * which i2c_device_id to use for each resource.
 	 */
-	static const struct acpi_device_id i2c_multi_instantiate_ids[] = {
 		{"BSG1160", },
 		{"BSG2150", },
 		{"INT33FE", },
 		{"INT3515", },
+	/*
+	 * HIDs of device with an UartSerialBusV2 resource for which userspace
+	 * expects a regular tty cdev to be created (instead of the in kernel
+	 * serdev) and which have a kernel driver which expects a platform_dev
+	 * such as the rfkill-gpio driver.
+	 */
+		{"BCM4752", },
+		{"LNV4752", },
 		{}
 	};
 

@@ -1603,8 +1611,7 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
 	     fwnode_property_present(&device->fwnode, "baud")))
 		return true;
 
-	/* Instantiate a pdev for the i2c-multi-instantiate drv to bind to */
-	if (!acpi_match_device_ids(device, i2c_multi_instantiate_ids))
+	if (!acpi_match_device_ids(device, ignore_serial_bus_ids))
 		return false;
 
 	INIT_LIST_HEAD(&resource_list);

index 0512af0f0464..b9fb2a926944 100644
@@ -2660,8 +2660,8 @@ static int binder_translate_fd_array(struct binder_fd_array_object *fda,
 		if (!ret)
 			ret = binder_translate_fd(fd, offset, t, thread,
 						  in_reply_to);
-		if (ret < 0)
-			return ret;
+		if (ret)
+			return ret > 0 ? -EINVAL : ret;
 	}
 	return 0;
 }

index ac97a1e2e5dd..02af4f109e59 100644
@@ -1003,7 +1003,7 @@ static DECLARE_DELAYED_WORK(fd_timer, fd_timer_workfn);
 static void cancel_activity(void)
 {
 	do_floppy = NULL;
-	cancel_delayed_work_sync(&fd_timer);
+	cancel_delayed_work(&fd_timer);
 	cancel_work_sync(&floppy_work);
 }
 

@@ -3112,6 +3112,8 @@ static void raw_cmd_free(struct floppy_raw_cmd **ptr)
 	}
 }
 
+#define MAX_LEN (1UL << MAX_ORDER << PAGE_SHIFT)
+
 static int raw_cmd_copyin(int cmd, void __user *param,
 				 struct floppy_raw_cmd **rcmd)
 {

@@ -3149,7 +3151,7 @@ static int raw_cmd_copyin(int cmd, void __user *param,
 	ptr->resultcode = 0;
 
 	if (ptr->flags & (FD_RAW_READ | FD_RAW_WRITE)) {
-		if (ptr->length <= 0)
+		if (ptr->length <= 0 || ptr->length >= MAX_LEN)
 			return -EINVAL;
 		ptr->kernel_data = (char *)fd_dma_mem_alloc(ptr->length);
 		fallback_on_nodma_alloc(&ptr->kernel_data, ptr->length);

index 304178be1ef4..c2eb64bcd5d5 100644
@@ -1041,6 +1041,8 @@ static int btmtksdio_runtime_suspend(struct device *dev)
 	if (!bdev)
 		return 0;
 
+	sdio_set_host_pm_flags(func, MMC_PM_KEEP_POWER);
+
 	sdio_claim_host(bdev->func);
 
 	sdio_writel(bdev->func, C_FW_OWN_REQ_SET, MTK_REG_CHLPCR, &err);

index 94ed734c1d7e..c6bb380806f9 100644
@@ -1127,7 +1127,12 @@ static int bcm_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	dev->dev = &pdev->dev;
-	dev->irq = platform_get_irq(pdev, 0);
+
+	ret = platform_get_irq(pdev, 0);
+	if (ret < 0)
+		return ret;
+
+	dev->irq = ret;
 
 	if (has_acpi_companion(&pdev->dev)) {
 		ret = bcm_acpi_probe(dev);

index 9ccb6b270b07..95164246afd1 100644
@@ -68,7 +68,7 @@ typedef struct {
 	unsigned char ClockControl:1;	/* RW: Clock control: 0=normal, 1=stop 3780i clocks */
 	unsigned char SoftReset:1;	/* RW: Soft reset 0=normal, 1=soft reset active */
 	unsigned char ConfigMode:1;	/* RW: Configuration mode, 0=normal, 1=config mode */
-	unsigned char Reserved:5;	/* 0: Reserved */
+	unsigned short Reserved:13;	/* 0: Reserved */
 } DSP_ISA_SLAVE_CONTROL;
 
 

index 60b39af1279a..19bfbaf13598 100644
@@ -975,12 +975,14 @@ static struct crng_state *select_crng(void)
 
 /*
  * crng_fast_load() can be called by code in the interrupt service
- * path.  So we can't afford to dilly-dally.
+ * path.  So we can't afford to dilly-dally. Returns the number of
+ * bytes processed from cp.
  */
-static int crng_fast_load(const char *cp, size_t len)
+static size_t crng_fast_load(const char *cp, size_t len)
 {
 	unsigned long flags;
 	char *p;
+	size_t ret = 0;
 
 	if (!spin_trylock_irqsave(&primary_crng.lock, flags))
 		return 0;

@@ -991,7 +993,7 @@ static int crng_fast_load(const char *cp, size_t len)
 	p = (unsigned char *) &primary_crng.state[4];
 	while (len > 0 && crng_init_cnt < CRNG_INIT_CNT_THRESH) {
 		p[crng_init_cnt % CHACHA_KEY_SIZE] ^= *cp;
-		cp++; crng_init_cnt++; len--;
+		cp++; crng_init_cnt++; len--; ret++;
 	}
 	spin_unlock_irqrestore(&primary_crng.lock, flags);
 	if (crng_init_cnt >= CRNG_INIT_CNT_THRESH) {

@@ -1000,7 +1002,7 @@ static int crng_fast_load(const char *cp, size_t len)
 		wake_up_interruptible(&crng_init_wait);
 		pr_notice("random: fast init done\n");
 	}
-	return 1;
+	return ret;
 }
 
 /*

@@ -1353,7 +1355,7 @@ void add_interrupt_randomness(int irq, int irq_flags)
 	if (unlikely(crng_init == 0)) {
 		if ((fast_pool->count >= 64) &&
 		    crng_fast_load((char *) fast_pool->pool,
-				   sizeof(fast_pool->pool))) {
+				   sizeof(fast_pool->pool)) > 0) {
 			fast_pool->count = 0;
 			fast_pool->last = now;
 		}

@@ -2501,8 +2503,11 @@ void add_hwgenerator_randomness(const char *buffer, size_t count,
 	struct entropy_store *poolp = &input_pool;
 
 	if (unlikely(crng_init == 0)) {
-		crng_fast_load(buffer, count);
-		return;
+		size_t ret = crng_fast_load(buffer, count);
+		count -= ret;
+		buffer += ret;
+		if (!count || crng_init == 0)
+			return;
 	}
 
 	/* Suspend writing if we're above the trickle threshold.

index 2fe26ec03552..70f785994228 100644
@@ -877,7 +877,15 @@ int tpm_tis_core_init(struct device *dev, struct tpm_tis_data *priv, int irq,
 	intmask |= TPM_INTF_CMD_READY_INT | TPM_INTF_LOCALITY_CHANGE_INT |
 		   TPM_INTF_DATA_AVAIL_INT | TPM_INTF_STS_VALID_INT;
 	intmask &= ~TPM_GLOBAL_INT_ENABLE;
+
+	rc = request_locality(chip, 0);
+	if (rc < 0) {
+		rc = -ENODEV;
+		goto out_err;
+	}
+
 	tpm_tis_write32(priv, TPM_INT_ENABLE(priv->locality), intmask);
+	release_locality(chip, 0);
 
 	rc = tpm_chip_start(chip);
 	if (rc)

index c5486537b928..e637bd6b295b 100644
@@ -932,8 +932,7 @@ static int bcm2835_clock_is_on(struct clk_hw *hw)
 
 static u32 bcm2835_clock_choose_div(struct clk_hw *hw,
 				    unsigned long rate,
-				    unsigned long parent_rate,
-				    bool round_up)
+				    unsigned long parent_rate)
 {
 	struct bcm2835_clock *clock = bcm2835_clock_from_hw(hw);
 	const struct bcm2835_clock_data *data = clock->data;

@@ -945,10 +944,6 @@ static u32 bcm2835_clock_choose_div(struct clk_hw *hw,
 
 	rem = do_div(temp, rate);
 	div = temp;
-
-	/* Round up and mask off the unused bits */
-	if (round_up && ((div & unused_frac_mask) != 0 || rem != 0))
-		div += unused_frac_mask + 1;
 	div &= ~unused_frac_mask;
 
 	/* different clamping limits apply for a mash clock */

@@ -1079,7 +1074,7 @@ static int bcm2835_clock_set_rate(struct clk_hw *hw,
 	struct bcm2835_clock *clock = bcm2835_clock_from_hw(hw);
 	struct bcm2835_cprman *cprman = clock->cprman;
 	const struct bcm2835_clock_data *data = clock->data;
-	u32 div = bcm2835_clock_choose_div(hw, rate, parent_rate, false);
+	u32 div = bcm2835_clock_choose_div(hw, rate, parent_rate);
 	u32 ctl;
 
 	spin_lock(&cprman->regs_lock);

@@ -1130,7 +1125,7 @@ static unsigned long bcm2835_clock_choose_div_and_prate(struct clk_hw *hw,
 
 	if (!(BIT(parent_idx) & data->set_rate_parent)) {
 		*prate = clk_hw_get_rate(parent);
-		*div = bcm2835_clock_choose_div(hw, rate, *prate, true);
+		*div = bcm2835_clock_choose_div(hw, rate, *prate);
 
 		*avgrate = bcm2835_clock_rate_from_divisor(clock, *prate, *div);
 

@@ -1216,7 +1211,7 @@ static int bcm2835_clock_determine_rate(struct clk_hw *hw,
 		rate = bcm2835_clock_choose_div_and_prate(hw, i, req->rate,
 							  &div, &prate,
 							  &avgrate);
-		if (rate > best_rate && rate <= req->rate) {
+		if (abs(req->rate - rate) < abs(req->rate - best_rate)) {
 			best_parent = parent;
 			best_prate = prate;
 			best_rate = rate;

index 8f9f3d4a54fd..20ed0955416a 100644
@@ -1303,7 +1303,7 @@ static int si5341_probe(struct i2c_client *client,
 			clk_prepare(data->clk[i].hw.clk);
 	}
 
-	err = of_clk_add_hw_provider(client->dev.of_node, of_clk_si5341_get,
+	err = devm_of_clk_add_hw_provider(&client->dev, of_clk_si5341_get,
 			data);
 	if (err) {
 		dev_err(&client->dev, "unable to add clk provider\n");

index 5c75e3d906c2..682a18b392f0 100644
@@ -129,7 +129,6 @@ static const struct stm32f4_gate_data stm32f429_gates[] __initconst = {
 	{ STM32F4_RCC_APB2ENR, 20,	"spi5",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 21,	"spi6",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 22,	"sai1",		"apb2_div" },
-	{ STM32F4_RCC_APB2ENR, 26,	"ltdc",		"apb2_div" },
 };
 
 static const struct stm32f4_gate_data stm32f469_gates[] __initconst = {

@@ -211,7 +210,6 @@ static const struct stm32f4_gate_data stm32f469_gates[] __initconst = {
 	{ STM32F4_RCC_APB2ENR, 20,	"spi5",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 21,	"spi6",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 22,	"sai1",		"apb2_div" },
-	{ STM32F4_RCC_APB2ENR, 26,	"ltdc",		"apb2_div" },
 };
 
 static const struct stm32f4_gate_data stm32f746_gates[] __initconst = {

@@ -286,7 +284,6 @@ static const struct stm32f4_gate_data stm32f746_gates[] __initconst = {
 	{ STM32F4_RCC_APB2ENR, 21,	"spi6",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 22,	"sai1",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 23,	"sai2",		"apb2_div" },
-	{ STM32F4_RCC_APB2ENR, 26,	"ltdc",		"apb2_div" },
 };
 
 static const struct stm32f4_gate_data stm32f769_gates[] __initconst = {

@@ -364,7 +361,6 @@ static const struct stm32f4_gate_data stm32f769_gates[] __initconst = {
 	{ STM32F4_RCC_APB2ENR, 21,	"spi6",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 22,	"sai1",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 23,	"sai2",		"apb2_div" },
-	{ STM32F4_RCC_APB2ENR, 26,	"ltdc",		"apb2_div" },
 	{ STM32F4_RCC_APB2ENR, 30,	"mdio",		"apb2_div" },
 };
 

index 58b5acee3830..882b42efd258 100644
@@ -358,9 +358,9 @@ static const char * const imx8mn_pdm_sels[] = {"osc_24m", "sys_pll2_100m", "audi
 
 static const char * const imx8mn_dram_core_sels[] = {"dram_pll_out", "dram_alt_root", };
 
-static const char * const imx8mn_clko1_sels[] = {"osc_24m", "sys_pll1_800m", "osc_27m",
-						 "sys_pll1_200m", "audio_pll2_out", "vpu_pll",
-						 "sys_pll1_80m", };
+static const char * const imx8mn_clko1_sels[] = {"osc_24m", "sys_pll1_800m", "dummy",
+						 "sys_pll1_200m", "audio_pll2_out", "sys_pll2_500m",
+						 "dummy", "sys_pll1_80m", };
 static const char * const imx8mn_clko2_sels[] = {"osc_24m", "sys_pll2_200m", "sys_pll1_400m",
 						 "sys_pll2_166m", "sys_pll3_out", "audio_pll1_out",
 						 "video_pll1_out", "osc_32k", };

68 lines not on this page · raw message

index cb7949a2ac0c..af9f34804862 100644
@@ -1393,7 +1393,7 @@ static int cpufreq_online(unsigned int cpu)
 
 		ret = freq_qos_add_request(&policy->constraints,
 					   policy->min_freq_req, FREQ_QOS_MIN,
-					   policy->min);
+					   FREQ_QOS_MIN_DEFAULT_VALUE);
 		if (ret < 0) {
 			/*
 			 * So we don't call freq_qos_remove_request() for an

@@ -1413,7 +1413,7 @@ static int cpufreq_online(unsigned int cpu)
 
 		ret = freq_qos_add_request(&policy->constraints,
 					   policy->max_freq_req, FREQ_QOS_MAX,
-					   policy->max);
+					   FREQ_QOS_MAX_DEFAULT_VALUE);
 		if (ret < 0) {
 			policy->max_freq_req = NULL;
 			goto out_destroy_policy;

index 6863d7097674..28692d068176 100644
@@ -5421,7 +5421,7 @@ int dpaa2_caam_enqueue(struct device *dev, struct caam_request *req)
 	dpaa2_fd_set_len(&fd, dpaa2_fl_get_len(&req->fd_flt[1]));
 	dpaa2_fd_set_flc(&fd, req->flc_dma);
 
-	ppriv = this_cpu_ptr(priv->ppriv);
+	ppriv = raw_cpu_ptr(priv->ppriv);
 	for (i = 0; i < (priv->dpseci_attr.num_tx_queues << 1); i++) {
 		err = dpaa2_io_service_enqueue_fq(ppriv->dpio, ppriv->req_fqid,
 						  &fd);

index 72edb10181b8..41ffb088831d 100644
@@ -1318,7 +1318,7 @@ static int omap_aes_suspend(struct device *dev)
 
 static int omap_aes_resume(struct device *dev)
 {
-	pm_runtime_resume_and_get(dev);
+	pm_runtime_get_sync(dev);
 	return 0;
 }
 #endif

index 0853e74583ad..29b0bad2507b 100644
@@ -512,8 +512,8 @@ static int qce_ahash_register_one(const struct qce_ahash_def *def,
 
 	ret = crypto_register_ahash(alg);
 	if (ret) {
-		kfree(tmpl);
 		dev_err(qce->dev, "%s registration failed\n", base->cra_name);
+		kfree(tmpl);
 		return ret;
 	}
 

index e68b856d03b6..fb640e0ea614 100644
@@ -230,7 +230,7 @@ static struct shash_alg algs[] = {
 		.digestsize     = CHKSUM_DIGEST_SIZE,
 		.base           = {
 			.cra_name               = "crc32",
-			.cra_driver_name        = DRIVER_NAME,
+			.cra_driver_name        = "stm32-crc32-crc32",
 			.cra_priority           = 200,
 			.cra_flags		= CRYPTO_ALG_OPTIONAL_KEY,
 			.cra_blocksize          = CHKSUM_BLOCK_SIZE,

@@ -252,7 +252,7 @@ static struct shash_alg algs[] = {
 		.digestsize     = CHKSUM_DIGEST_SIZE,
 		.base           = {
 			.cra_name               = "crc32c",
-			.cra_driver_name        = DRIVER_NAME,
+			.cra_driver_name        = "stm32-crc32-crc32c",
 			.cra_priority           = 200,
 			.cra_flags		= CRYPTO_ALG_OPTIONAL_KEY,
 			.cra_blocksize          = CHKSUM_BLOCK_SIZE,

index 9b3511236ba2..69c2468f1053 100644
@@ -639,7 +639,7 @@ static void stm32_cryp_finish_req(struct stm32_cryp *cryp, int err)
 		/* Phase 4 : output tag */
 		err = stm32_cryp_read_auth_tag(cryp);
 
-	if (!err && (!(is_gcm(cryp) || is_ccm(cryp))))
+	if (!err && (!(is_gcm(cryp) || is_ccm(cryp) || is_ecb(cryp))))
 		stm32_cryp_get_iv(cryp);
 
 	if (cryp->sgs_copied) {

@@ -669,8 +669,6 @@ static void stm32_cryp_finish_req(struct stm32_cryp *cryp, int err)
 	else
 		crypto_finalize_ablkcipher_request(cryp->engine, cryp->req,
 						   err);
-
-	memset(cryp->ctx->key, 0, cryp->ctx->keylen);
 }
 
 static int stm32_cryp_cpu_start(struct stm32_cryp *cryp)

@@ -2036,8 +2034,6 @@ static int stm32_cryp_probe(struct platform_device *pdev)
 	list_del(&cryp->list);
 	spin_unlock(&cryp_list.lock);
 
-	pm_runtime_disable(dev);
-	pm_runtime_put_noidle(dev);
 	pm_runtime_disable(dev);
 	pm_runtime_put_noidle(dev);
 

index d3fbd950be94..3e07f961e2f3 100644
@@ -104,7 +104,11 @@ static bool dma_fence_array_signaled(struct dma_fence *fence)
 {
 	struct dma_fence_array *array = to_dma_fence_array(fence);
 
-	return atomic_read(&array->num_pending) <= 0;
+	if (atomic_read(&array->num_pending) > 0)
+		return false;
+
+	dma_fence_array_clear_pending_error(array);
+	return true;
 }
 
 static void dma_fence_array_release(struct dma_fence *fence)

89 lines not on this page · raw message

index 7fe494fc50d4..ec186cf8b8af 100644
@@ -728,12 +728,6 @@ static int mmp_pdma_config_write(struct dma_chan *dchan,
 
 	chan->dir = direction;
 	chan->dev_addr = addr;
-	/* FIXME: drivers should be ported over to use the filter
-	 * function. Once that's done, the following two lines can
-	 * be removed.
-	 */
-	if (cfg->slave_id)
-		chan->drcmr = cfg->slave_id;
 
 	return 0;
 }

index 349fb312c872..b4ef4f19f7de 100644
@@ -911,13 +911,6 @@ static void pxad_get_config(struct pxad_chan *chan,
 		*dcmd |= PXA_DCMD_BURST16;
 	else if (maxburst == 32)
 		*dcmd |= PXA_DCMD_BURST32;
-
-	/* FIXME: drivers should be ported over to use the filter
-	 * function. Once that's done, the following two lines can
-	 * be removed.
-	 */
-	if (chan->cfg.slave_id)
-		chan->drcmr = chan->cfg.slave_id;
 }
 
 static struct dma_async_tx_descriptor *

index ee1cbf3be75d..a05355d1292e 100644
@@ -184,7 +184,7 @@
 #define STM32_MDMA_CTBR(x)		(0x68 + 0x40 * (x))
 #define STM32_MDMA_CTBR_DBUS		BIT(17)
 #define STM32_MDMA_CTBR_SBUS		BIT(16)
-#define STM32_MDMA_CTBR_TSEL_MASK	GENMASK(7, 0)
+#define STM32_MDMA_CTBR_TSEL_MASK	GENMASK(5, 0)
 #define STM32_MDMA_CTBR_TSEL(n)		STM32_MDMA_SET(n, \
 						      STM32_MDMA_CTBR_TSEL_MASK)
 

index 6becf3363ad5..d23a0782fb49 100644
@@ -1351,8 +1351,7 @@ static int mc_probe(struct platform_device *pdev)
 		}
 	}
 
-	if (of_device_is_compatible(pdev->dev.of_node,
-				    "xlnx,zynqmp-ddrc-2.40a"))
+	if (priv->p_data->quirks & DDR_ECC_INTR_SUPPORT)
 		setup_address_map(priv);
 #endif
 

204 lines not on this page · raw message

index e3ddc99c105d..13c6eee481da 100644
@@ -953,10 +953,17 @@ int acpi_dev_gpio_irq_get(struct acpi_device *adev, int index)
 			irq_flags = acpi_dev_get_irq_type(info.triggering,
 							  info.polarity);
 
-			/* Set type if specified and different than the current one */
-			if (irq_flags != IRQ_TYPE_NONE &&
-			    irq_flags != irq_get_trigger_type(irq))
-				irq_set_irq_type(irq, irq_flags);
+			/*
+			 * If the IRQ is not already in use then set type
+			 * if specified and different than the current one.
+			 */
+			if (can_request_irq(irq, irq_flags)) {
+				if (irq_flags != IRQ_TYPE_NONE &&
+				    irq_flags != irq_get_trigger_type(irq))
+					irq_set_irq_type(irq, irq_flags);
+			} else {
+				dev_dbg(&adev->dev, "IRQ %d already in use\n", irq);
+			}
 
 			return irq;
 		}

index 0d39e386f6e9..0e1cacf73169 100644
@@ -389,6 +389,9 @@ amdgpu_connector_lcd_native_mode(struct drm_encoder *encoder)
 	    native_mode->vdisplay != 0 &&
 	    native_mode->clock != 0) {
 		mode = drm_mode_duplicate(dev, native_mode);
+		if (!mode)
+			return NULL;
+
 		mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
 		drm_mode_set_name(mode);
 

@@ -403,6 +406,9 @@ amdgpu_connector_lcd_native_mode(struct drm_encoder *encoder)
 		 * simpler.
 		 */
 		mode = drm_cvt_mode(dev, native_mode->hdisplay, native_mode->vdisplay, 60, true, false, false);
+		if (!mode)
+			return NULL;
+
 		mode->type = DRM_MODE_TYPE_PREFERRED | DRM_MODE_TYPE_DRIVER;
 		DRM_DEBUG_KMS("Adding cvt approximation of native panel mode %s\n", mode->name);
 	}

index ea764dd9245d..2975331a7b86 100644
@@ -524,10 +524,10 @@ static void gmc_v8_0_mc_program(struct amdgpu_device *adev)
 static int gmc_v8_0_mc_init(struct amdgpu_device *adev)
 {
 	int r;
+	u32 tmp;
 
 	adev->gmc.vram_width = amdgpu_atombios_get_vram_width(adev);
 	if (!adev->gmc.vram_width) {
-		u32 tmp;
 		int chansize, numchan;
 
 		/* Get VRAM informations */

@@ -571,8 +571,15 @@ static int gmc_v8_0_mc_init(struct amdgpu_device *adev)
 		adev->gmc.vram_width = numchan * chansize;
 	}
 	/* size in MB on si */
-	adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
-	adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
+	tmp = RREG32(mmCONFIG_MEMSIZE);
+	/* some boards may have garbage in the upper 16 bits */
+	if (tmp & 0xffff0000) {
+		DRM_INFO("Probable bad vram size: 0x%08x\n", tmp);
+		if (tmp & 0xffff)
+			tmp &= 0xffff;
+	}
+	adev->gmc.mc_vram_size = tmp * 1024ULL * 1024ULL;
+	adev->gmc.real_vram_size = adev->gmc.mc_vram_size;
 
 	if (!(adev->flags & AMD_IS_APU)) {
 		r = amdgpu_device_resize_fb_bar(adev);

index 914c569ab8c1..cab3f5c4e2fc 100644
@@ -1086,11 +1086,21 @@ int analogix_dp_send_psr_spd(struct analogix_dp_device *dp,
 	if (!blocking)
 		return 0;
 
+	/*
+	 * db[1]!=0: entering PSR, wait for fully active remote frame buffer.
+	 * db[1]==0: exiting PSR, wait for either
+	 *  (a) ACTIVE_RESYNC - the sink "must display the
+	 *      incoming active frames from the Source device with no visible
+	 *      glitches and/or artifacts", even though timings may still be
+	 *      re-synchronizing; or
+	 *  (b) INACTIVE - the transition is fully complete.
+	 */
 	ret = readx_poll_timeout(analogix_dp_get_psr_status, dp, psr_status,
 		psr_status >= 0 &&
 		((vsc->db[1] && psr_status == DP_PSR_SINK_ACTIVE_RFB) ||
-		(!vsc->db[1] && psr_status == DP_PSR_SINK_INACTIVE)), 1500,
-		DP_TIMEOUT_PSR_LOOP_MS * 1000);
+		(!vsc->db[1] && (psr_status == DP_PSR_SINK_ACTIVE_RESYNC ||
+				 psr_status == DP_PSR_SINK_INACTIVE))),
+		1500, DP_TIMEOUT_PSR_LOOP_MS * 1000);
 	if (ret) {
 		dev_warn(dp->dev, "Failed to apply PSR %d\n", ret);
 		return ret;

index b050fd1f3d20..5302dd90a7a5 100644
@@ -291,19 +291,10 @@ static void ge_b850v3_lvds_remove(void)
 	mutex_unlock(&ge_b850v3_lvds_dev_mutex);
 }
 
-static int stdp4028_ge_b850v3_fw_probe(struct i2c_client *stdp4028_i2c,
-				       const struct i2c_device_id *id)
+static int ge_b850v3_register(void)
 {
+	struct i2c_client *stdp4028_i2c = ge_b850v3_lvds_ptr->stdp4028_i2c;
 	struct device *dev = &stdp4028_i2c->dev;
-	int ret;
-
-	ret = ge_b850v3_lvds_init(dev);
-
-	if (ret)
-		return ret;
-
-	ge_b850v3_lvds_ptr->stdp4028_i2c = stdp4028_i2c;
-	i2c_set_clientdata(stdp4028_i2c, ge_b850v3_lvds_ptr);
 
 	/* drm bridge initialization */
 	ge_b850v3_lvds_ptr->bridge.funcs = &ge_b850v3_lvds_funcs;

@@ -325,6 +316,27 @@ static int stdp4028_ge_b850v3_fw_probe(struct i2c_client *stdp4028_i2c,
 			"ge-b850v3-lvds-dp", ge_b850v3_lvds_ptr);
 }
 
+static int stdp4028_ge_b850v3_fw_probe(struct i2c_client *stdp4028_i2c,
+				       const struct i2c_device_id *id)
+{
+	struct device *dev = &stdp4028_i2c->dev;
+	int ret;
+
+	ret = ge_b850v3_lvds_init(dev);
+
+	if (ret)
+		return ret;
+
+	ge_b850v3_lvds_ptr->stdp4028_i2c = stdp4028_i2c;
+	i2c_set_clientdata(stdp4028_i2c, ge_b850v3_lvds_ptr);
+
+	/* Only register after both bridges are probed */
+	if (!ge_b850v3_lvds_ptr->stdp2690_i2c)
+		return 0;
+
+	return ge_b850v3_register();
+}
+
 static int stdp4028_ge_b850v3_fw_remove(struct i2c_client *stdp4028_i2c)
 {
 	ge_b850v3_lvds_remove();

@@ -368,7 +380,11 @@ static int stdp2690_ge_b850v3_fw_probe(struct i2c_client *stdp2690_i2c,
 	ge_b850v3_lvds_ptr->stdp2690_i2c = stdp2690_i2c;
 	i2c_set_clientdata(stdp2690_i2c, ge_b850v3_lvds_ptr);
 
-	return 0;
+	/* Only register after both bridges are probed */
+	if (!ge_b850v3_lvds_ptr->stdp4028_i2c)
+		return 0;
+
+	return ge_b850v3_register();
 }
 
 static int stdp2690_ge_b850v3_fw_remove(struct i2c_client *stdp2690_i2c)

index f1de4bb6558c..dbb4a374cb64 100644
@@ -115,6 +115,7 @@ static const struct regmap_config ti_sn_bridge_regmap_config = {
 	.val_bits = 8,
 	.volatile_table = &ti_sn_bridge_volatile_table,
 	.cache_type = REGCACHE_NONE,
+	.max_register = 0xFF,
 };
 
 static void ti_sn_bridge_write_u16(struct ti_sn_bridge *pdata,

index a950d5db211c..9d1bd8f491ad 100644
@@ -248,6 +248,12 @@ static const struct dmi_system_id orientation_data[] = {
 		  DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
 		},
 		.driver_data = (void *)&lcd1200x1920_rightside_up,
+	}, {	/* Lenovo Yoga Book X90F / X91F / X91L */
+		.matches = {
+		  /* Non exact match to match all versions */
+		  DMI_MATCH(DMI_PRODUCT_NAME, "Lenovo YB1-X9"),
+		},
+		.driver_data = (void *)&lcd1200x1920_rightside_up,
 	}, {	/* OneGX1 Pro */
 		.matches = {
 		  DMI_EXACT_MATCH(DMI_SYS_VENDOR, "SYSTEM_MANUFACTURER"),

index 7085b08b1db4..7d155938e291 100644
@@ -471,6 +471,12 @@ int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
 		return -EINVAL;
 	}
 
+	if (args->stream_size > SZ_64K || args->nr_relocs > SZ_64K ||
+	    args->nr_bos > SZ_64K || args->nr_pmrs > 128) {
+		DRM_ERROR("submit arguments out of size limits\n");
+		return -EINVAL;
+	}
+
 	/*
 	 * Copy the command submission and bo array to kernel space in
 	 * one go, and do this outside of any locks.

index d86b8d81a483..155971c57b2d 100644
@@ -293,6 +293,7 @@ int lima_device_init(struct lima_device *ldev)
 	struct resource *res;
 
 	dma_set_coherent_mask(ldev->dev, DMA_BIT_MASK(32));
+	dma_set_max_seg_size(ldev->dev, UINT_MAX);
 
 	err = lima_clk_init(ldev);
 	if (err)

index 58b0485dc375..72f487692adb 100644
@@ -88,8 +88,8 @@ static int _dpu_danger_signal_status(struct seq_file *s,
 					&status);
 	} else {
 		seq_puts(s, "\nSafe signal status:\n");
-		if (kms->hw_mdp->ops.get_danger_status)
-			kms->hw_mdp->ops.get_danger_status(kms->hw_mdp,
+		if (kms->hw_mdp->ops.get_safe_status)
+			kms->hw_mdp->ops.get_safe_status(kms->hw_mdp,
 					&status);
 	}
 	pm_runtime_put_sync(&kms->pdev->dev);

index dc64863b5fd8..f517b39aba56 100644
@@ -179,7 +179,7 @@ nv04_display_destroy(struct drm_device *dev)
 	nvif_notify_fini(&disp->flip);
 
 	nouveau_display(dev)->priv = NULL;
-	kfree(disp);
+	vfree(disp);
 
 	nvif_object_unmap(&drm->client.device.object);
 }

@@ -197,7 +197,7 @@ nv04_display_create(struct drm_device *dev)
 	struct nv04_display *disp;
 	int i, ret;
 
-	disp = kzalloc(sizeof(*disp), GFP_KERNEL);
+	disp = vzalloc(sizeof(*disp));
 	if (!disp)
 		return -ENOMEM;
 

index ea2e11771bca..105b4be467a3 100644
@@ -88,20 +88,13 @@ nvkm_pmu_fini(struct nvkm_subdev *subdev, bool suspend)
 	return 0;
 }
 
-static int
+static void
 nvkm_pmu_reset(struct nvkm_pmu *pmu)
 {
 	struct nvkm_device *device = pmu->subdev.device;
 
 	if (!pmu->func->enabled(pmu))
-		return 0;
-
-	/* Inhibit interrupts, and wait for idle. */
-	nvkm_wr32(device, 0x10a014, 0x0000ffff);
-	nvkm_msec(device, 2000,
-		if (!nvkm_rd32(device, 0x10a04c))
-			break;
-	);
+		return;
 
 	/* Reset. */
 	if (pmu->func->reset)

@@ -112,25 +105,37 @@ nvkm_pmu_reset(struct nvkm_pmu *pmu)
 		if (!(nvkm_rd32(device, 0x10a10c) & 0x00000006))
 			break;
 	);
-
-	return 0;
 }
 
 static int
 nvkm_pmu_preinit(struct nvkm_subdev *subdev)
 {
 	struct nvkm_pmu *pmu = nvkm_pmu(subdev);
-	return nvkm_pmu_reset(pmu);
+	nvkm_pmu_reset(pmu);
+	return 0;
 }
 
 static int
 nvkm_pmu_init(struct nvkm_subdev *subdev)
 {
 	struct nvkm_pmu *pmu = nvkm_pmu(subdev);
-	int ret = nvkm_pmu_reset(pmu);
-	if (ret == 0 && pmu->func->init)
-		ret = pmu->func->init(pmu);
-	return ret;
+	struct nvkm_device *device = pmu->subdev.device;
+
+	if (!pmu->func->init)
+		return 0;
+
+	if (pmu->func->enabled(pmu)) {
+		/* Inhibit interrupts, and wait for idle. */
+		nvkm_wr32(device, 0x10a014, 0x0000ffff);
+		nvkm_msec(device, 2000,
+			if (!nvkm_rd32(device, 0x10a04c))
+				break;
+		);
+
+		nvkm_pmu_reset(pmu);
+	}
+
+	return pmu->func->init(pmu);
 }
 
 static int

index d92d1c98878c..df90b6607981 100644
@@ -509,6 +509,7 @@ static void innolux_panel_del(struct innolux_panel *innolux)
 static int innolux_panel_probe(struct mipi_dsi_device *dsi)
 {
 	const struct panel_desc *desc;
+	struct innolux_panel *innolux;
 	int err;
 
 	desc = of_device_get_match_data(&dsi->dev);

@@ -520,7 +521,14 @@ static int innolux_panel_probe(struct mipi_dsi_device *dsi)
 	if (err < 0)
 		return err;
 
-	return mipi_dsi_attach(dsi);
+	err = mipi_dsi_attach(dsi);
+	if (err < 0) {
+		innolux = mipi_dsi_get_drvdata(dsi);
+		innolux_panel_del(innolux);
+		return err;
+	}
+
+	return 0;
 }
 
 static int innolux_panel_remove(struct mipi_dsi_device *dsi)

index 3ac04eb8d0fe..1e7fecab72a9 100644
@@ -424,7 +424,13 @@ static int kingdisplay_panel_probe(struct mipi_dsi_device *dsi)
 	if (err < 0)
 		return err;
 
-	return mipi_dsi_attach(dsi);
+	err = mipi_dsi_attach(dsi);
+	if (err < 0) {
+		kingdisplay_panel_del(kingdisplay);
+		return err;
+	}
+
+	return 0;
 }
 
 static int kingdisplay_panel_remove(struct mipi_dsi_device *dsi)

78 lines not on this page · raw message

161 lines not on this page · raw message

index 07df64daf7da..efce31d035ef 100644
@@ -389,7 +389,7 @@ static int apple_input_configured(struct hid_device *hdev,
 
 	if ((asc->quirks & APPLE_HAS_FN) && !asc->fn_found) {
 		hid_info(hdev, "Fn key not found (Apple Wireless Keyboard clone?), disabling Fn key handling\n");
-		asc->quirks = 0;
+		asc->quirks &= ~APPLE_HAS_FN;
 	}
 
 	return 0;

index ea4c97f5b073..749558aa27e7 100644
@@ -1288,6 +1288,12 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct
 
 	input = field->hidinput->input;
 
+	if (usage->type == EV_ABS &&
+	    (((*quirks & HID_QUIRK_X_INVERT) && usage->code == ABS_X) ||
+	     ((*quirks & HID_QUIRK_Y_INVERT) && usage->code == ABS_Y))) {
+		value = field->logical_maximum - value;
+	}
+
 	if (usage->hat_min < usage->hat_max || usage->hat_dir) {
 		int hat_dir = usage->hat_dir;
 		if (!hat_dir)

index ed4ede52b017..191aba9f6b49 100644
@@ -65,7 +65,7 @@ static int uclogic_params_get_str_desc(__u8 **pbuf, struct hid_device *hdev,
 					__u8 idx, size_t len)
 {
 	int rc;
-	struct usb_device *udev = hid_to_usb_dev(hdev);
+	struct usb_device *udev;
 	__u8 *buf = NULL;
 
 	/* Check arguments */

@@ -74,6 +74,8 @@ static int uclogic_params_get_str_desc(__u8 **pbuf, struct hid_device *hdev,
 		goto cleanup;
 	}
 
+	udev = hid_to_usb_dev(hdev);
+
 	buf = kmalloc(len, GFP_KERNEL);
 	if (buf == NULL) {
 		rc = -ENOMEM;

@@ -449,7 +451,7 @@ static int uclogic_params_frame_init_v1_buttonpad(
 {
 	int rc;
 	bool found = false;
-	struct usb_device *usb_dev = hid_to_usb_dev(hdev);
+	struct usb_device *usb_dev;
 	char *str_buf = NULL;
 	const size_t str_len = 16;
 

@@ -459,6 +461,8 @@ static int uclogic_params_frame_init_v1_buttonpad(
 		goto cleanup;
 	}
 
+	usb_dev = hid_to_usb_dev(hdev);
+
 	/*
 	 * Enable generic button mode
 	 */

@@ -705,9 +709,9 @@ static int uclogic_params_huion_init(struct uclogic_params *params,
 				     struct hid_device *hdev)
 {
 	int rc;
-	struct usb_device *udev = hid_to_usb_dev(hdev);
-	struct usb_interface *iface = to_usb_interface(hdev->dev.parent);
-	__u8 bInterfaceNumber = iface->cur_altsetting->desc.bInterfaceNumber;
+	struct usb_device *udev;
+	struct usb_interface *iface;
+	__u8 bInterfaceNumber;
 	bool found;
 	/* The resulting parameters (noop) */
 	struct uclogic_params p = {0, };

@@ -721,6 +725,10 @@ static int uclogic_params_huion_init(struct uclogic_params *params,
 		goto cleanup;
 	}
 
+	udev = hid_to_usb_dev(hdev);
+	iface = to_usb_interface(hdev->dev.parent);
+	bInterfaceNumber = iface->cur_altsetting->desc.bInterfaceNumber;
+
 	/* If it's not a pen interface */
 	if (bInterfaceNumber != 0) {
 		/* TODO: Consider marking the interface invalid */

@@ -832,10 +840,10 @@ int uclogic_params_init(struct uclogic_params *params,
 			struct hid_device *hdev)
 {
 	int rc;
-	struct usb_device *udev = hid_to_usb_dev(hdev);
-	__u8  bNumInterfaces = udev->config->desc.bNumInterfaces;
-	struct usb_interface *iface = to_usb_interface(hdev->dev.parent);
-	__u8 bInterfaceNumber = iface->cur_altsetting->desc.bInterfaceNumber;
+	struct usb_device *udev;
+	__u8  bNumInterfaces;
+	struct usb_interface *iface;
+	__u8 bInterfaceNumber;
 	bool found;
 	/* The resulting parameters (noop) */
 	struct uclogic_params p = {0, };

@@ -846,6 +854,11 @@ int uclogic_params_init(struct uclogic_params *params,
 		goto cleanup;
 	}
 
+	udev = hid_to_usb_dev(hdev);
+	bNumInterfaces = udev->config->desc.bNumInterfaces;
+	iface = to_usb_interface(hdev->dev.parent);
+	bInterfaceNumber = iface->cur_altsetting->desc.bInterfaceNumber;
+
 	/*
 	 * Set replacement report descriptor if the original matches the
 	 * specified size. Otherwise keep interface unchanged.

index 8fe3efcb8327..fc06d8bb42e0 100644
@@ -28,11 +28,22 @@
 
 struct uhid_device {
 	struct mutex devlock;
+
+	/* This flag tracks whether the HID device is usable for commands from
+	 * userspace. The flag is already set before hid_add_device(), which
+	 * runs in workqueue context, to allow hid_add_device() to communicate
+	 * with userspace.
+	 * However, if hid_add_device() fails, the flag is cleared without
+	 * holding devlock.
+	 * We guarantee that if @running changes from true to false while you're
+	 * holding @devlock, it's still fine to access @hid.
+	 */
 	bool running;
 
 	__u8 *rd_data;
 	uint rd_size;
 
+	/* When this is NULL, userspace may use UHID_CREATE/UHID_CREATE2. */
 	struct hid_device *hid;
 	struct uhid_event input_buf;
 

@@ -63,9 +74,18 @@ static void uhid_device_add_worker(struct work_struct *work)
 	if (ret) {
 		hid_err(uhid->hid, "Cannot register HID device: error %d\n", ret);
 
-		hid_destroy_device(uhid->hid);
-		uhid->hid = NULL;
+		/* We used to call hid_destroy_device() here, but that's really
+		 * messy to get right because we have to coordinate with
+		 * concurrent writes from userspace that might be in the middle
+		 * of using uhid->hid.
+		 * Just leave uhid->hid as-is for now, and clean it up when
+		 * userspace tries to close or reinitialize the uhid instance.
+		 *
+		 * However, we do have to clear the ->running flag and do a
+		 * wakeup to make sure userspace knows that the device is gone.
+		 */
 		uhid->running = false;
+		wake_up_interruptible(&uhid->report_wait);
 	}
 }
 

@@ -474,7 +494,7 @@ static int uhid_dev_create2(struct uhid_device *uhid,
 	void *rd_data;
 	int ret;
 
-	if (uhid->running)
+	if (uhid->hid)
 		return -EALREADY;
 
 	rd_size = ev->u.create2.rd_size;

@@ -556,7 +576,7 @@ static int uhid_dev_create(struct uhid_device *uhid,
 
 static int uhid_dev_destroy(struct uhid_device *uhid)
 {
-	if (!uhid->running)
+	if (!uhid->hid)
 		return -EINVAL;
 
 	uhid->running = false;

@@ -565,6 +585,7 @@ static int uhid_dev_destroy(struct uhid_device *uhid)
 	cancel_work_sync(&uhid->worker);
 
 	hid_destroy_device(uhid->hid);
+	uhid->hid = NULL;
 	kfree(uhid->rd_data);
 
 	return 0;

index e011839f19f8..de69ea5f5a4b 100644
@@ -2566,6 +2566,24 @@ static void wacom_wac_finger_slot(struct wacom_wac *wacom_wac,
 	}
 }
 
+static bool wacom_wac_slot_is_active(struct input_dev *dev, int key)
+{
+	struct input_mt *mt = dev->mt;
+	struct input_mt_slot *s;
+
+	if (!mt)
+		return false;
+
+	for (s = mt->slots; s != mt->slots + mt->num_slots; s++) {
+		if (s->key == key &&
+			input_mt_get_value(s, ABS_MT_TRACKING_ID) >= 0) {
+			return true;
+		}
+	}
+
+	return false;
+}
+
 static void wacom_wac_finger_event(struct hid_device *hdev,
 		struct hid_field *field, struct hid_usage *usage, __s32 value)
 {

@@ -2613,9 +2631,14 @@ static void wacom_wac_finger_event(struct hid_device *hdev,
 	}
 
 	if (usage->usage_index + 1 == field->report_count) {
-		if (equivalent_usage == wacom_wac->hid_data.last_slot_field &&
-		    wacom_wac->hid_data.confidence)
-			wacom_wac_finger_slot(wacom_wac, wacom_wac->touch_input);
+		if (equivalent_usage == wacom_wac->hid_data.last_slot_field) {
+			bool touch_removed = wacom_wac_slot_is_active(wacom_wac->touch_input,
+				wacom_wac->hid_data.id) && !wacom_wac->hid_data.tipswitch;
+
+			if (wacom_wac->hid_data.confidence || touch_removed) {
+				wacom_wac_finger_slot(wacom_wac, wacom_wac->touch_input);
+			}
+		}
 	}
 }
 

@@ -2631,6 +2654,10 @@ static void wacom_wac_finger_pre_report(struct hid_device *hdev,
 
 	hid_data->confidence = true;
 
+	hid_data->cc_report = 0;
+	hid_data->cc_index = -1;
+	hid_data->cc_value_index = -1;
+
 	for (i = 0; i < report->maxfield; i++) {
 		struct hid_field *field = report->field[i];
 		int j;

@@ -2664,11 +2691,14 @@ static void wacom_wac_finger_pre_report(struct hid_device *hdev,
 	    hid_data->cc_index >= 0) {
 		struct hid_field *field = report->field[hid_data->cc_index];
 		int value = field->value[hid_data->cc_value_index];
-		if (value)
+		if (value) {
 			hid_data->num_expected = value;
+			hid_data->num_received = 0;
+		}
 	}
 	else {
 		hid_data->num_expected = wacom_wac->features.touch_max;
+		hid_data->num_received = 0;
 	}
 }
 

@@ -2692,6 +2722,7 @@ static void wacom_wac_finger_report(struct hid_device *hdev,
 
 	input_sync(input);
 	wacom_wac->hid_data.num_received = 0;
+	wacom_wac->hid_data.num_expected = 0;
 
 	/* keep touch state for pen event */
 	wacom_wac->shared->touch_down = wacom_wac_finger_count_touches(wacom_wac);

index a5f92e2889cb..a330f58d45fc 100644
@@ -102,6 +102,7 @@ struct hsi_client *hsi_new_client(struct hsi_port *port,
 	if (device_register(&cl->device) < 0) {
 		pr_err("hsi: failed to register client: %s\n", info->name);
 		put_device(&cl->device);
+		goto err;
 	}
 
 	return cl;

index 05b35ac33ce3..735326e5eb8c 100644
@@ -37,10 +37,10 @@ enum dw_pci_ctl_id_t {
 };
 
 struct dw_scl_sda_cfg {
-	u32 ss_hcnt;
-	u32 fs_hcnt;
-	u32 ss_lcnt;
-	u32 fs_lcnt;
+	u16 ss_hcnt;
+	u16 fs_hcnt;
+	u16 ss_lcnt;
+	u16 fs_lcnt;
 	u32 sda_hold;
 };
 

index a959062ded4f..4e6d0b722ddc 100644
@@ -785,6 +785,11 @@ static int i801_block_transaction(struct i801_priv *priv,
 	int result = 0;
 	unsigned char hostc;
 
+	if (read_write == I2C_SMBUS_READ && command == I2C_SMBUS_BLOCK_DATA)
+		data->block[0] = I2C_SMBUS_BLOCK_MAX;
+	else if (data->block[0] < 1 || data->block[0] > I2C_SMBUS_BLOCK_MAX)
+		return -EPROTO;
+
 	if (command == I2C_SMBUS_I2C_BLOCK_DATA) {
 		if (read_write == I2C_SMBUS_WRITE) {
 			/* set I2C_EN bit in configuration register */

@@ -798,16 +803,6 @@ static int i801_block_transaction(struct i801_priv *priv,
 		}
 	}
 
-	if (read_write == I2C_SMBUS_WRITE
-	 || command == I2C_SMBUS_I2C_BLOCK_DATA) {
-		if (data->block[0] < 1)
-			data->block[0] = 1;
-		if (data->block[0] > I2C_SMBUS_BLOCK_MAX)
-			data->block[0] = I2C_SMBUS_BLOCK_MAX;
-	} else {
-		data->block[0] = 32;	/* max for SMBus block reads */
-	}
-
 	/* Experience has shown that the block buffer can only be used for
 	   SMBus (not I2C) block transactions, even though the datasheet
 	   doesn't mention this limitation. */

index af349661fd76..8de8296d2583 100644
@@ -105,23 +105,30 @@ static irqreturn_t mpc_i2c_isr(int irq, void *dev_id)
 /* Sometimes 9th clock pulse isn't generated, and slave doesn't release
  * the bus, because it wants to send ACK.
  * Following sequence of enabling/disabling and sending start/stop generates
- * the 9 pulses, so it's all OK.
+ * the 9 pulses, each with a START then ending with STOP, so it's all OK.
  */
 static void mpc_i2c_fixup(struct mpc_i2c *i2c)
 {
 	int k;
-	u32 delay_val = 1000000 / i2c->real_clk + 1;
-
-	if (delay_val < 2)
-		delay_val = 2;
+	unsigned long flags;
 
 	for (k = 9; k; k--) {
 		writeccr(i2c, 0);
-		writeccr(i2c, CCR_MSTA | CCR_MTX | CCR_MEN);
+		writeb(0, i2c->base + MPC_I2C_SR); /* clear any status bits */
+		writeccr(i2c, CCR_MEN | CCR_MSTA); /* START */
+		readb(i2c->base + MPC_I2C_DR); /* init xfer */
+		udelay(15); /* let it hit the bus */
+		local_irq_save(flags); /* should not be delayed further */
+		writeccr(i2c, CCR_MEN | CCR_MSTA | CCR_RSTA); /* delay SDA */
 		readb(i2c->base + MPC_I2C_DR);
-		writeccr(i2c, CCR_MEN);
-		udelay(delay_val << 1);
+		if (k != 1)
+			udelay(5);
+		local_irq_restore(flags);
 	}
+	writeccr(i2c, CCR_MEN); /* Initiate STOP */
+	readb(i2c->base + MPC_I2C_DR);
+	udelay(15); /* Let STOP propagate */
+	writeccr(i2c, 0);
 }
 
 static int i2c_wait(struct mpc_i2c *i2c, unsigned timeout, int writing)

index ec9e9598894f..5e2b688e36fc 100644
@@ -820,6 +820,7 @@ static int cma_resolve_ib_dev(struct rdma_id_private *id_priv)
 	u16 pkey, index;
 	u8 p;
 	enum ib_port_state port_state;
+	int ret;
 	int i;
 
 	cma_dev = NULL;

@@ -838,9 +839,14 @@ static int cma_resolve_ib_dev(struct rdma_id_private *id_priv)
 
 			if (ib_get_cached_port_state(cur_dev->device, p, &port_state))
 				continue;
-			for (i = 0; !rdma_query_gid(cur_dev->device,
-						    p, i, &gid);
-			     i++) {
+
+			for (i = 0; i < cur_dev->device->port_data[p].immutable.gid_tbl_len;
+			     ++i) {
+				ret = rdma_query_gid(cur_dev->device, p, i,
+						     &gid);
+				if (ret)
+					continue;
+
 				if (!memcmp(&gid, dgid, sizeof(gid))) {
 					cma_dev = cur_dev;
 					sgid = gid;

index 256d379bba67..de66d7da1bf6 100644
@@ -2438,7 +2438,8 @@ int ib_find_gid(struct ib_device *device, union ib_gid *gid,
 		     ++i) {
 			ret = rdma_query_gid(device, port, i, &tmp_gid);
 			if (ret)
-				return ret;
+				continue;
+
 			if (!memcmp(&tmp_gid, gid, sizeof *gid)) {
 				*port_num = port;
 				if (index)

index 3ac08f47a8ce..b3fbafbf6655 100644
@@ -2469,6 +2469,7 @@ int c4iw_ib_query_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
 	memset(attr, 0, sizeof(*attr));
 	memset(init_attr, 0, sizeof(*init_attr));
 	attr->qp_state = to_ib_qp_state(qhp->attr.state);
+	attr->cur_qp_state = to_ib_qp_state(qhp->attr.state);
 	init_attr->cap.max_send_wr = qhp->attr.sq_num_entries;
 	init_attr->cap.max_recv_wr = qhp->attr.rq_num_entries;
 	init_attr->cap.max_send_sge = qhp->attr.sq_max_sges;

index f23a341400c0..70991649dc69 100644
@@ -279,6 +279,9 @@ static enum rdma_link_layer hns_roce_get_link_layer(struct ib_device *device,
 static int hns_roce_query_pkey(struct ib_device *ib_dev, u8 port, u16 index,
 			       u16 *pkey)
 {
+	if (index > 0)
+		return -EINVAL;
+
 	*pkey = PKEY_ID;
 
 	return 0;

@@ -359,7 +362,7 @@ static int hns_roce_mmap(struct ib_ucontext *context,
 		return rdma_user_mmap_io(context, vma,
 					 to_hr_ucontext(context)->uar.pfn,
 					 PAGE_SIZE,
-					 pgprot_noncached(vma->vm_page_prot));
+					 pgprot_device(vma->vm_page_prot));
 
 	/* vm_pgoff: 1 -- TPTR */
 	case 1:

index 4cf11063e0b5..0f166d6d0ccb 100644
@@ -137,7 +137,7 @@ struct rxe_opcode_info rxe_opcode[RXE_NUM_OPCODE] = {
 		}
 	},
 	[IB_OPCODE_RC_SEND_MIDDLE]		= {
-		.name	= "IB_OPCODE_RC_SEND_MIDDLE]",
+		.name	= "IB_OPCODE_RC_SEND_MIDDLE",
 		.mask	= RXE_PAYLOAD_MASK | RXE_REQ_MASK | RXE_SEND_MASK
 				| RXE_MIDDLE_MASK,
 		.length = RXE_BTH_BYTES,

index 4cb394937700..909be90d2666 100644
@@ -244,13 +244,17 @@ static void *__arm_v7s_alloc_table(int lvl, gfp_t gfp,
 			__GFP_ZERO | ARM_V7S_TABLE_GFP_DMA, get_order(size));
 	else if (lvl == 2)
 		table = kmem_cache_zalloc(data->l2_tables, gfp);
+
+	if (!table)
+		return NULL;
+
 	phys = virt_to_phys(table);
 	if (phys != (arm_v7s_iopte)phys) {
 		/* Doesn't fit in PTE */
 		dev_err(dev, "Page table does not fit in PTE: %pa", &phys);
 		goto out_free;
 	}
-	if (table && !cfg->coherent_walk) {
+	if (!cfg->coherent_walk) {
 		dma = dma_map_single(dev, table, size, DMA_TO_DEVICE);
 		if (dma_mapping_error(dev, dma))
 			goto out_free;

index ca51036aa53c..975237ca0326 100644
@@ -351,11 +351,12 @@ static int arm_lpae_init_pte(struct arm_lpae_io_pgtable *data,
 static arm_lpae_iopte arm_lpae_install_table(arm_lpae_iopte *table,
 					     arm_lpae_iopte *ptep,
 					     arm_lpae_iopte curr,
-					     struct io_pgtable_cfg *cfg)
+					     struct arm_lpae_io_pgtable *data)
 {
 	arm_lpae_iopte old, new;
+	struct io_pgtable_cfg *cfg = &data->iop.cfg;
 
-	new = __pa(table) | ARM_LPAE_PTE_TYPE_TABLE;
+	new = paddr_to_iopte(__pa(table), data) | ARM_LPAE_PTE_TYPE_TABLE;
 	if (cfg->quirks & IO_PGTABLE_QUIRK_ARM_NS)
 		new |= ARM_LPAE_PTE_NSTABLE;
 

@@ -406,7 +407,7 @@ static int __arm_lpae_map(struct arm_lpae_io_pgtable *data, unsigned long iova,
 		if (!cptep)
 			return -ENOMEM;
 
-		pte = arm_lpae_install_table(cptep, ptep, 0, cfg);
+		pte = arm_lpae_install_table(cptep, ptep, 0, data);
 		if (pte)
 			__arm_lpae_free_pages(cptep, tblsz, cfg);
 	} else if (!cfg->coherent_walk && !(pte & ARM_LPAE_PTE_SW_SYNC)) {

@@ -575,7 +576,7 @@ static size_t arm_lpae_split_blk_unmap(struct arm_lpae_io_pgtable *data,
 		__arm_lpae_init_pte(data, blk_paddr, pte, lvl, &tablep[i]);
 	}
 
-	pte = arm_lpae_install_table(tablep, ptep, blk_pte, cfg);
+	pte = arm_lpae_install_table(tablep, ptep, blk_pte, data);
 	if (pte != blk_pte) {
 		__arm_lpae_free_pages(tablep, tablesz, cfg);
 		/*

index 612cbf668adf..906582a21124 100644
@@ -64,8 +64,7 @@ static void free_iova_flush_queue(struct iova_domain *iovad)
 	if (!has_iova_flush_queue(iovad))
 		return;
 
-	if (timer_pending(&iovad->fq_timer))
-		del_timer(&iovad->fq_timer);
+	del_timer_sync(&iovad->fq_timer);
 
 	fq_destroy_all_entries(iovad);
 

index 8aae0624a297..6383afb88f31 100644
@@ -83,14 +83,16 @@ void inc_children(struct dm_transaction_manager *tm, struct btree_node *n,
 }
 
 static int insert_at(size_t value_size, struct btree_node *node, unsigned index,
-		      uint64_t key, void *value)
-		      __dm_written_to_disk(value)
+		     uint64_t key, void *value)
+	__dm_written_to_disk(value)
 {
 	uint32_t nr_entries = le32_to_cpu(node->header.nr_entries);
+	uint32_t max_entries = le32_to_cpu(node->header.max_entries);
 	__le64 key_le = cpu_to_le64(key);
 
 	if (index > nr_entries ||
-	    index >= le32_to_cpu(node->header.max_entries)) {
+	    index >= max_entries ||
+	    nr_entries >= max_entries) {
 		DMERR("too many entries in btree node for insert");
 		__dm_unbless_for_disk(value);
 		return -ENOMEM;

index a213bf11738f..85853ab62971 100644
@@ -281,6 +281,11 @@ int sm_ll_lookup_bitmap(struct ll_disk *ll, dm_block_t b, uint32_t *result)
 	struct disk_index_entry ie_disk;
 	struct dm_block *blk;
 
+	if (b >= ll->nr_blocks) {
+		DMERR_LIMIT("metadata block out of bounds");
+		return -EINVAL;
+	}
+
 	b = do_div(index, ll->entries_per_block);
 	r = ll->load_ie(ll, index, &ie_disk);
 	if (r < 0)

index aabb830e7468..4b332ea98616 100644
@@ -525,7 +525,7 @@ int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv)
 		ERR("out of memory. aborting.\n");
 		kfree(vv);
 		v4l2_ctrl_handler_free(hdl);
-		return -1;
+		return -ENOMEM;
 	}
 
 	saa7146_video_uops.init(dev,vv);

index 44cd0e530bbd..093ebe6f279f 100644
@@ -154,7 +154,7 @@ static void *vb2_dc_alloc(struct device *dev, unsigned long attrs,
 	buf->cookie = dma_alloc_attrs(dev, size, &buf->dma_addr,
 					GFP_KERNEL | gfp_flags, buf->attrs);
 	if (!buf->cookie) {
-		dev_err(dev, "dma_alloc_coherent of size %ld failed\n", size);
+		dev_err(dev, "dma_alloc_coherent of size %lu failed\n", size);
 		kfree(buf);
 		return ERR_PTR(-ENOMEM);
 	}

@@ -200,9 +200,9 @@ static int vb2_dc_mmap(void *buf_priv, struct vm_area_struct *vma)
 
 	vma->vm_ops->open(vma);
 
-	pr_debug("%s: mapped dma addr 0x%08lx at 0x%08lx, size %ld\n",
-		__func__, (unsigned long)buf->dma_addr, vma->vm_start,
-		buf->size);
+	pr_debug("%s: mapped dma addr 0x%08lx at 0x%08lx, size %lu\n",
+		 __func__, (unsigned long)buf->dma_addr, vma->vm_start,
+		 buf->size);
 
 	return 0;
 }

index f14a872d1268..e58cb8434daf 100644
@@ -1413,7 +1413,7 @@ static const struct dvb_device dvbdev_dvr = {
 };
 int dvb_dmxdev_init(struct dmxdev *dmxdev, struct dvb_adapter *dvb_adapter)
 {
-	int i;
+	int i, ret;
 
 	if (dmxdev->demux->open(dmxdev->demux) < 0)
 		return -EUSERS;

@@ -1432,14 +1432,26 @@ int dvb_dmxdev_init(struct dmxdev *dmxdev, struct dvb_adapter *dvb_adapter)
 					    DMXDEV_STATE_FREE);
 	}
 
-	dvb_register_device(dvb_adapter, &dmxdev->dvbdev, &dvbdev_demux, dmxdev,
+	ret = dvb_register_device(dvb_adapter, &dmxdev->dvbdev, &dvbdev_demux, dmxdev,
 			    DVB_DEVICE_DEMUX, dmxdev->filternum);
-	dvb_register_device(dvb_adapter, &dmxdev->dvr_dvbdev, &dvbdev_dvr,
+	if (ret < 0)
+		goto err_register_dvbdev;
+
+	ret = dvb_register_device(dvb_adapter, &dmxdev->dvr_dvbdev, &dvbdev_dvr,
 			    dmxdev, DVB_DEVICE_DVR, dmxdev->filternum);
+	if (ret < 0)
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