Merge tag 'v4.0.2' into toradex_vf_4.0-next

This is the 4.0.2 stable release

12 files changed, 87 insertions, 15 deletions

diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index b034f1068dfe..0d5852557f1c 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -199,9 +199,29 @@ typedef int s32;
 typedef s32 acpi_native_int;
 
 typedef u32 acpi_size;
+
+#ifdef ACPI_32BIT_PHYSICAL_ADDRESS
+
+/*
+ * OSPMs can define this to shrink the size of the structures for 32-bit
+ * none PAE environment. ASL compiler may always define this to generate
+ * 32-bit OSPM compliant tables.
+ */
 typedef u32 acpi_io_address;
 typedef u32 acpi_physical_address;
 
+#else				/* ACPI_32BIT_PHYSICAL_ADDRESS */
+
+/*
+ * It is reported that, after some calculations, the physical addresses can
+ * wrap over the 32-bit boundary on 32-bit PAE environment.
+ * https://bugzilla.kernel.org/show_bug.cgi?id=87971
+ */
+typedef u64 acpi_io_address;
+typedef u64 acpi_physical_address;
+
+#endif				/* ACPI_32BIT_PHYSICAL_ADDRESS */
+
 #define ACPI_MAX_PTR                    ACPI_UINT32_MAX
 #define ACPI_SIZE_MAX                   ACPI_UINT32_MAX
 
@@ -736,10 +756,6 @@ typedef u32 acpi_event_status;
 #define ACPI_GPE_ENABLE                 0
 #define ACPI_GPE_DISABLE                1
 #define ACPI_GPE_CONDITIONAL_ENABLE     2
-#define ACPI_GPE_SAVE_MASK              4
-
-#define ACPI_GPE_ENABLE_SAVE            (ACPI_GPE_ENABLE | ACPI_GPE_SAVE_MASK)
-#define ACPI_GPE_DISABLE_SAVE           (ACPI_GPE_DISABLE | ACPI_GPE_SAVE_MASK)
 
 /*
  * GPE info flags - Per GPE
diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h
index ad74dc51d5b7..ecdf9405dd3a 100644
--- a/include/acpi/platform/acenv.h
+++ b/include/acpi/platform/acenv.h
@@ -76,6 +76,7 @@
 #define ACPI_LARGE_NAMESPACE_NODE
 #define ACPI_DATA_TABLE_DISASSEMBLY
 #define ACPI_SINGLE_THREADED
+#define ACPI_32BIT_PHYSICAL_ADDRESS
 #endif
 
 /* acpi_exec configuration. Multithreaded with full AML debugger */
diff --git a/include/dt-bindings/clock/tegra124-car-common.h b/include/dt-bindings/clock/tegra124-car-common.h
index ae2eb17a1658..a2156090563f 100644
--- a/include/dt-bindings/clock/tegra124-car-common.h
+++ b/include/dt-bindings/clock/tegra124-car-common.h
@@ -297,7 +297,7 @@
 #define TEGRA124_CLK_PLL_C4 270
 #define TEGRA124_CLK_PLL_DP 271
 #define TEGRA124_CLK_PLL_E_MUX 272
-#define TEGRA124_CLK_PLLD_DSI 273
+#define TEGRA124_CLK_PLL_D_DSI_OUT 273
 /* 274 */
 /* 275 */
 /* 276 */
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index bbfceb756452..33b52fb0e20f 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -48,7 +48,7 @@ struct bpf_map *bpf_map_get(struct fd f);
 
 /* function argument constraints */
 enum bpf_arg_type {
-	ARG_ANYTHING = 0,	/* any argument is ok */
+	ARG_DONTCARE = 0,	/* unused argument in helper function */
 
 	/* the following constraints used to prototype
 	 * bpf_map_lookup/update/delete_elem() functions
@@ -62,6 +62,8 @@ enum bpf_arg_type {
 	 */
 	ARG_PTR_TO_STACK,	/* any pointer to eBPF program stack */
 	ARG_CONST_STACK_SIZE,	/* number of bytes accessed from stack */
+
+	ARG_ANYTHING,		/* any (initialized) argument is ok */
 };
 
 /* type of values returned from helper functions */
diff --git a/include/linux/mount.h b/include/linux/mount.h
index c2c561dc0114..564beeec5d83 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -61,6 +61,7 @@ struct mnt_namespace;
 #define MNT_DOOMED		0x1000000
 #define MNT_SYNC_UMOUNT		0x2000000
 #define MNT_MARKED		0x4000000
+#define MNT_UMOUNT		0x8000000
 
 struct vfsmount {
 	struct dentry *mnt_root;	/* root of the mounted tree */
diff --git a/include/linux/sched.h b/include/linux/sched.h
index a419b65770d6..51348f77e431 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -176,6 +176,14 @@ extern void get_iowait_load(unsigned long *nr_waiters, unsigned long *load);
 extern void calc_global_load(unsigned long ticks);
 extern void update_cpu_load_nohz(void);
 
+/* Notifier for when a task gets migrated to a new CPU */
+struct task_migration_notifier {
+	struct task_struct *task;
+	int from_cpu;
+	int to_cpu;
+};
+extern void register_task_migration_notifier(struct notifier_block *n);
+
 extern unsigned long get_parent_ip(unsigned long addr);
 
 extern void dump_cpu_task(int cpu);
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index f54d6659713a..bdccc4b46f57 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -769,6 +769,7 @@ bool skb_try_coalesce(struct sk_buff *to, struct sk_buff *from,
 
 struct sk_buff *__alloc_skb(unsigned int size, gfp_t priority, int flags,
 			    int node);
+struct sk_buff *__build_skb(void *data, unsigned int frag_size);
 struct sk_buff *build_skb(void *data, unsigned int frag_size);
 static inline struct sk_buff *alloc_skb(unsigned int size,
 					gfp_t priority)
@@ -3013,6 +3014,18 @@ static inline bool __skb_checksum_validate_needed(struct sk_buff *skb,
  */
 #define CHECKSUM_BREAK 76
 
+/* Unset checksum-complete
+ *
+ * Unset checksum complete can be done when packet is being modified
+ * (uncompressed for instance) and checksum-complete value is
+ * invalidated.
+ */
+static inline void skb_checksum_complete_unset(struct sk_buff *skb)
+{
+	if (skb->ip_summed == CHECKSUM_COMPLETE)
+		skb->ip_summed = CHECKSUM_NONE;
+}
+
 /* Validate (init) checksum based on checksum complete.
  *
  * Return values:
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 7ee1b5c3b4cb..447fe29b55b4 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -205,6 +205,32 @@ void usb_put_intf(struct usb_interface *intf);
 #define USB_MAXINTERFACES	32
 #define USB_MAXIADS		(USB_MAXINTERFACES/2)
 
+/*
+ * USB Resume Timer: Every Host controller driver should drive the resume
+ * signalling on the bus for the amount of time defined by this macro.
+ *
+ * That way we will have a 'stable' behavior among all HCDs supported by Linux.
+ *
+ * Note that the USB Specification states we should drive resume for *at least*
+ * 20 ms, but it doesn't give an upper bound. This creates two possible
+ * situations which we want to avoid:
+ *
+ * (a) sometimes an msleep(20) might expire slightly before 20 ms, which causes
+ * us to fail USB Electrical Tests, thus failing Certification
+ *
+ * (b) Some (many) devices actually need more than 20 ms of resume signalling,
+ * and while we can argue that's against the USB Specification, we don't have
+ * control over which devices a certification laboratory will be using for
+ * certification. If CertLab uses a device which was tested against Windows and
+ * that happens to have relaxed resume signalling rules, we might fall into
+ * situations where we fail interoperability and electrical tests.
+ *
+ * In order to avoid both conditions, we're using a 40 ms resume timeout, which
+ * should cope with both LPJ calibration errors and devices not following every
+ * detail of the USB Specification.
+ */
+#define USB_RESUME_TIMEOUT	40 /* ms */
+
 /**
  * struct usb_interface_cache - long-term representation of a device interface
  * @num_altsetting: number of altsettings defined.
diff --git a/include/target/iscsi/iscsi_target_core.h b/include/target/iscsi/iscsi_target_core.h
index d3583d3ee193..dd0f3abde75d 100644
--- a/include/target/iscsi/iscsi_target_core.h
+++ b/include/target/iscsi/iscsi_target_core.h
@@ -602,6 +602,11 @@ struct iscsi_conn {
 	struct iscsi_session	*sess;
 	/* Pointer to thread_set in use for this conn's threads */
 	struct iscsi_thread_set	*thread_set;
+	int			bitmap_id;
+	int			rx_thread_active;
+	struct task_struct	*rx_thread;
+	int			tx_thread_active;
+	struct task_struct	*tx_thread;
 	/* list_head for session connection list */
 	struct list_head	conn_list;
 } ____cacheline_aligned;
@@ -871,10 +876,12 @@ struct iscsit_global {
 	/* Unique identifier used for the authentication daemon */
 	u32			auth_id;
 	u32			inactive_ts;
+#define ISCSIT_BITMAP_BITS	262144
 	/* Thread Set bitmap count */
 	int			ts_bitmap_count;
 	/* Thread Set bitmap pointer */
 	unsigned long		*ts_bitmap;
+	spinlock_t		ts_bitmap_lock;
 	/* Used for iSCSI discovery session authentication */
 	struct iscsi_node_acl	discovery_acl;
 	struct iscsi_portal_group	*discovery_tpg;
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 672150b6aaf5..985ca4c907fe 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -524,7 +524,7 @@ struct se_cmd {
 	sense_reason_t		(*execute_cmd)(struct se_cmd *);
 	sense_reason_t		(*execute_rw)(struct se_cmd *, struct scatterlist *,
 					      u32, enum dma_data_direction);
-	sense_reason_t (*transport_complete_callback)(struct se_cmd *);
+	sense_reason_t (*transport_complete_callback)(struct se_cmd *, bool);
 
 	unsigned char		*t_task_cdb;
 	unsigned char		__t_task_cdb[TCM_MAX_COMMAND_SIZE];
diff --git a/include/uapi/linux/nfsd/debug.h b/include/uapi/linux/nfsd/debug.h
index 0bf130a1c58d..28ec6c9c421a 100644
--- a/include/uapi/linux/nfsd/debug.h
+++ b/include/uapi/linux/nfsd/debug.h
@@ -12,14 +12,6 @@
 #include <linux/sunrpc/debug.h>
 
 /*
- * Enable debugging for nfsd.
- * Requires RPC_DEBUG.
- */
-#if IS_ENABLED(CONFIG_SUNRPC_DEBUG)
-# define NFSD_DEBUG		1
-#endif
-
-/*
  * knfsd debug flags
  */
 #define NFSDDBG_SOCK		0x0001
diff --git a/include/video/samsung_fimd.h b/include/video/samsung_fimd.h
index a20e4a3a8b15..847a0a2b399c 100644
--- a/include/video/samsung_fimd.h
+++ b/include/video/samsung_fimd.h
@@ -436,6 +436,12 @@
 #define BLENDCON_NEW_8BIT_ALPHA_VALUE		(1 << 0)
 #define BLENDCON_NEW_4BIT_ALPHA_VALUE		(0 << 0)
 
+/* Display port clock control */
+#define DP_MIE_CLKCON				0x27c
+#define DP_MIE_CLK_DISABLE			0x0
+#define DP_MIE_CLK_DP_ENABLE			0x2
+#define DP_MIE_CLK_MIE_ENABLE			0x3
+
 /* Notes on per-window bpp settings
  *
  * Value	Win0	 Win1	  Win2	   Win3	    Win 4