25 files changed, 306 insertions, 61 deletions

diff --git a/include/dt-bindings/gpio/meson8-gpio.h b/include/dt-bindings/gpio/meson8-gpio.h
new file mode 100644
index 000000000000..fdaeb5cbf5e1
--- /dev/null
+++ b/include/dt-bindings/gpio/meson8-gpio.h
@@ -0,0 +1,157 @@
+/*
+ * GPIO definitions for Amlogic Meson8 SoCs
+ *
+ * Copyright (C) 2014 Beniamino Galvani <b.galvani@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _DT_BINDINGS_MESON8_GPIO_H
+#define _DT_BINDINGS_MESON8_GPIO_H
+
+/* First GPIO chip */
+#define GPIOX_0         0
+#define GPIOX_1         1
+#define GPIOX_2         2
+#define GPIOX_3         3
+#define GPIOX_4         4
+#define GPIOX_5         5
+#define GPIOX_6         6
+#define GPIOX_7         7
+#define GPIOX_8         8
+#define GPIOX_9         9
+#define GPIOX_10        10
+#define GPIOX_11        11
+#define GPIOX_12        12
+#define GPIOX_13        13
+#define GPIOX_14        14
+#define GPIOX_15        15
+#define GPIOX_16        16
+#define GPIOX_17        17
+#define GPIOX_18        18
+#define GPIOX_19        19
+#define GPIOX_20        20
+#define GPIOX_21        21
+#define GPIOY_0         22
+#define GPIOY_1         23
+#define GPIOY_2         24
+#define GPIOY_3         25
+#define GPIOY_4         26
+#define GPIOY_5         27
+#define GPIOY_6         28
+#define GPIOY_7         29
+#define GPIOY_8         30
+#define GPIOY_9         31
+#define GPIOY_10        32
+#define GPIOY_11        33
+#define GPIOY_12        34
+#define GPIOY_13        35
+#define GPIOY_14        36
+#define GPIOY_15        37
+#define GPIOY_16        38
+#define GPIODV_0        39
+#define GPIODV_1        40
+#define GPIODV_2        41
+#define GPIODV_3        42
+#define GPIODV_4        43
+#define GPIODV_5        44
+#define GPIODV_6        45
+#define GPIODV_7        46
+#define GPIODV_8        47
+#define GPIODV_9        48
+#define GPIODV_10       49
+#define GPIODV_11       50
+#define GPIODV_12       51
+#define GPIODV_13       52
+#define GPIODV_14       53
+#define GPIODV_15       54
+#define GPIODV_16       55
+#define GPIODV_17       56
+#define GPIODV_18       57
+#define GPIODV_19       58
+#define GPIODV_20       59
+#define GPIODV_21       60
+#define GPIODV_22       61
+#define GPIODV_23       62
+#define GPIODV_24       63
+#define GPIODV_25       64
+#define GPIODV_26       65
+#define GPIODV_27       66
+#define GPIODV_28       67
+#define GPIODV_29       68
+#define GPIOH_0         69
+#define GPIOH_1         70
+#define GPIOH_2         71
+#define GPIOH_3         72
+#define GPIOH_4         73
+#define GPIOH_5         74
+#define GPIOH_6         75
+#define GPIOH_7         76
+#define GPIOH_8         77
+#define GPIOH_9         78
+#define GPIOZ_0         79
+#define GPIOZ_1         80
+#define GPIOZ_2         81
+#define GPIOZ_3         82
+#define GPIOZ_4         83
+#define GPIOZ_5         84
+#define GPIOZ_6         85
+#define GPIOZ_7         86
+#define GPIOZ_8         87
+#define GPIOZ_9         88
+#define GPIOZ_10        89
+#define GPIOZ_11        90
+#define GPIOZ_12        91
+#define GPIOZ_13        92
+#define GPIOZ_14        93
+#define CARD_0          94
+#define CARD_1          95
+#define CARD_2          96
+#define CARD_3          97
+#define CARD_4          98
+#define CARD_5          99
+#define CARD_6          100
+#define BOOT_0          101
+#define BOOT_1          102
+#define BOOT_2          103
+#define BOOT_3          104
+#define BOOT_4          105
+#define BOOT_5          106
+#define BOOT_6          107
+#define BOOT_7          108
+#define BOOT_8          109
+#define BOOT_9          110
+#define BOOT_10         111
+#define BOOT_11         112
+#define BOOT_12         113
+#define BOOT_13         114
+#define BOOT_14         115
+#define BOOT_15         116
+#define BOOT_16         117
+#define BOOT_17         118
+#define BOOT_18         119
+
+/* Second GPIO chip */
+#define GPIOAO_0        0
+#define GPIOAO_1        1
+#define GPIOAO_2        2
+#define GPIOAO_3        3
+#define GPIOAO_4        4
+#define GPIOAO_5        5
+#define GPIOAO_6        6
+#define GPIOAO_7        7
+#define GPIOAO_8        8
+#define GPIOAO_9        9
+#define GPIOAO_10       10
+#define GPIOAO_11       11
+#define GPIOAO_12       12
+#define GPIOAO_13       13
+#define GPIO_BSD_EN     14
+#define GPIO_TEST_N     15
+
+#endif /* _DT_BINDINGS_MESON8_GPIO_H */
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 7450ca2ac1fc..ab25814690bc 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -689,6 +689,15 @@ asmlinkage long compat_sys_sendfile64(int out_fd, int in_fd,
 asmlinkage long compat_sys_sigaltstack(const compat_stack_t __user *uss_ptr,
                                        compat_stack_t __user *uoss_ptr);
 
+#ifdef __ARCH_WANT_SYS_SIGPENDING
+asmlinkage long compat_sys_sigpending(compat_old_sigset_t __user *set);
+#endif
+
+#ifdef __ARCH_WANT_SYS_SIGPROCMASK
+asmlinkage long compat_sys_sigprocmask(int how, compat_old_sigset_t __user *nset,
+                                       compat_old_sigset_t __user *oset);
+#endif
+
 int compat_restore_altstack(const compat_stack_t __user *uss);
 int __compat_save_altstack(compat_stack_t __user *, unsigned long);
 #define compat_save_altstack_ex(uss, sp) do { \
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 176bf816875e..17f624cdf53c 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -54,7 +54,11 @@ extern void __chk_io_ptr(const volatile void __iomem *);
 #include <linux/compiler-gcc.h>
 #endif
 
+#ifdef CC_USING_HOTPATCH
+#define notrace __attribute__((hotpatch(0,0)))
+#else
 #define notrace __attribute__((no_instrument_function))
+#endif
 
 /* Intel compiler defines __GNUC__. So we will overwrite implementations
  * coming from above header files here
diff --git a/include/linux/efi.h b/include/linux/efi.h
index b674837e2b98..cf7e431cbc73 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -875,6 +875,8 @@ static inline efi_status_t efi_query_variable_store(u32 attributes, unsigned lon
 #endif
 extern void __iomem *efi_lookup_mapped_addr(u64 phys_addr);
 extern int efi_config_init(efi_config_table_type_t *arch_tables);
+extern int efi_config_parse_tables(void *config_tables, int count, int sz,
+                                   efi_config_table_type_t *arch_tables);
 extern u64 efi_get_iobase (void);
 extern u32 efi_mem_type (unsigned long phys_addr);
 extern u64 efi_mem_attributes (unsigned long phys_addr);
diff --git a/include/linux/gpio/consumer.h b/include/linux/gpio/consumer.h
index fd85cb120ee0..45afc2dee560 100644
--- a/include/linux/gpio/consumer.h
+++ b/include/linux/gpio/consumer.h
@@ -340,31 +340,32 @@ static inline int desc_to_gpio(const struct gpio_desc *desc)
  * etc.
  */
 #define __gpiod_get(dev, con_id, flags, ...) __gpiod_get(dev, con_id, flags)
-#define gpiod_get(varargs...) __gpiod_get(varargs, 0)
+#define gpiod_get(varargs...) __gpiod_get(varargs, GPIOD_ASIS)
 #define __gpiod_get_index(dev, con_id, index, flags, ...)               \
         __gpiod_get_index(dev, con_id, index, flags)
-#define gpiod_get_index(varargs...) __gpiod_get_index(varargs, 0)
+#define gpiod_get_index(varargs...) __gpiod_get_index(varargs, GPIOD_ASIS)
 #define __gpiod_get_optional(dev, con_id, flags, ...)                   \
         __gpiod_get_optional(dev, con_id, flags)
-#define gpiod_get_optional(varargs...) __gpiod_get_optional(varargs, 0)
+#define gpiod_get_optional(varargs...) __gpiod_get_optional(varargs, GPIOD_ASIS)
 #define __gpiod_get_index_optional(dev, con_id, index, flags, ...)      \
         __gpiod_get_index_optional(dev, con_id, index, flags)
 #define gpiod_get_index_optional(varargs...)                            \
-        __gpiod_get_index_optional(varargs, 0)
+        __gpiod_get_index_optional(varargs, GPIOD_ASIS)
 #define __devm_gpiod_get(dev, con_id, flags, ...)                       \
         __devm_gpiod_get(dev, con_id, flags)
-#define devm_gpiod_get(varargs...) __devm_gpiod_get(varargs, 0)
+#define devm_gpiod_get(varargs...) __devm_gpiod_get(varargs, GPIOD_ASIS)
 #define __devm_gpiod_get_index(dev, con_id, index, flags, ...)          \
         __devm_gpiod_get_index(dev, con_id, index, flags)
-#define devm_gpiod_get_index(varargs...) __devm_gpiod_get_index(varargs, 0)
+#define devm_gpiod_get_index(varargs...)                                \
+        __devm_gpiod_get_index(varargs, GPIOD_ASIS)
 #define __devm_gpiod_get_optional(dev, con_id, flags, ...)              \
         __devm_gpiod_get_optional(dev, con_id, flags)
 #define devm_gpiod_get_optional(varargs...)                             \
-        __devm_gpiod_get_optional(varargs, 0)
+        __devm_gpiod_get_optional(varargs, GPIOD_ASIS)
 #define __devm_gpiod_get_index_optional(dev, con_id, index, flags, ...) \
         __devm_gpiod_get_index_optional(dev, con_id, index, flags)
 #define devm_gpiod_get_index_optional(varargs...)                       \
-        __devm_gpiod_get_index_optional(varargs, 0)
+        __devm_gpiod_get_index_optional(varargs, GPIOD_ASIS)
 
 #if IS_ENABLED(CONFIG_GPIOLIB) && IS_ENABLED(CONFIG_GPIO_SYSFS)
 
diff --git a/include/linux/mfd/stmpe.h b/include/linux/mfd/stmpe.h
index f742b6717d52..c9d869027300 100644
--- a/include/linux/mfd/stmpe.h
+++ b/include/linux/mfd/stmpe.h
@@ -118,20 +118,6 @@ extern int stmpe_disable(struct stmpe *stmpe, unsigned int blocks);
 #define STMPE_GPIO_NOREQ_811_TOUCH      (0xf0)
 
 /**
- * struct stmpe_gpio_platform_data - STMPE GPIO platform data
- * @norequest_mask: bitmask specifying which GPIOs should _not_ be
- *                  requestable due to different usage (e.g. touch, keypad)
- *                  STMPE_GPIO_NOREQ_* macros can be used here.
- * @setup: board specific setup callback.
- * @remove: board specific remove callback
- */
-struct stmpe_gpio_platform_data {
-        unsigned norequest_mask;
-        void (*setup)(struct stmpe *stmpe, unsigned gpio_base);
-        void (*remove)(struct stmpe *stmpe, unsigned gpio_base);
-};
-
-/**
  * struct stmpe_ts_platform_data - stmpe811 touch screen controller platform
  * data
  * @sample_time: ADC converstion time in number of clock.
@@ -182,7 +168,6 @@ struct stmpe_ts_platform_data {
  * @irq_over_gpio: true if gpio is used to get irq
  * @irq_gpio: gpio number over which irq will be requested (significant only if
  *            irq_over_gpio is true)
- * @gpio: GPIO-specific platform data
  * @ts: touchscreen-specific platform data
  */
 struct stmpe_platform_data {
@@ -194,7 +179,6 @@ struct stmpe_platform_data {
         int irq_gpio;
         int autosleep_timeout;
 
-        struct stmpe_gpio_platform_data *gpio;
         struct stmpe_ts_platform_data *ts;
 };
 
diff --git a/include/linux/mfd/tc3589x.h b/include/linux/mfd/tc3589x.h
index e1c12d84c26a..c203c9c56776 100644
--- a/include/linux/mfd/tc3589x.h
+++ b/include/linux/mfd/tc3589x.h
@@ -163,24 +163,12 @@ struct tc3589x_keypad_platform_data {
 };
 
 /**
- * struct tc3589x_gpio_platform_data - TC3589x GPIO platform data
- * @setup: callback for board-specific initialization
- * @remove: callback for board-specific teardown
- */
-struct tc3589x_gpio_platform_data {
-        void (*setup)(struct tc3589x *tc3589x, unsigned gpio_base);
-        void (*remove)(struct tc3589x *tc3589x, unsigned gpio_base);
-};
-
-/**
  * struct tc3589x_platform_data - TC3589x platform data
  * @block: bitmask of blocks to enable (use TC3589x_BLOCK_*)
- * @gpio: GPIO-specific platform data
  * @keypad: keypad-specific platform data
  */
 struct tc3589x_platform_data {
         unsigned int block;
-        struct tc3589x_gpio_platform_data *gpio;
         const struct tc3589x_keypad_platform_data *keypad;
 };
 
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 022b761dbf0a..de7c91ca427e 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -516,6 +516,7 @@ enum pnfs_layouttype {
         LAYOUT_NFSV4_1_FILES  = 1,
         LAYOUT_OSD2_OBJECTS = 2,
         LAYOUT_BLOCK_VOLUME = 3,
+        LAYOUT_FLEX_FILES = 4,
 };
 
 /* used for both layout return and recall */
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index ddea982355f3..5e1273d4de14 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -77,10 +77,6 @@ struct nfs_client {
         /* Client owner identifier */
         const char *            cl_owner_id;
 
-        /* Our own IP address, as a null-terminated string.
-         * This is used to generate the mv0 callback address.
-         */
-        char                    cl_ipaddr[48];
         u32                     cl_cb_ident;    /* v4.0 callback identifier */
         const struct nfs4_minor_version_ops *cl_mvops;
         unsigned long           cl_mig_gen;
@@ -108,6 +104,11 @@ struct nfs_client {
 #define NFS_SP4_MACH_CRED_COMMIT   6    /* COMMIT */
 #endif /* CONFIG_NFS_V4 */
 
+        /* Our own IP address, as a null-terminated string.
+         * This is used to generate the mv0 callback address.
+         */
+        char                    cl_ipaddr[48];
+
 #ifdef CONFIG_NFS_FSCACHE
         struct fscache_cookie   *fscache;       /* client index cache cookie */
 #endif
diff --git a/include/linux/nfs_idmap.h b/include/linux/nfs_idmap.h
index 0f4b79da6584..333844e38f66 100644
--- a/include/linux/nfs_idmap.h
+++ b/include/linux/nfs_idmap.h
@@ -73,5 +73,7 @@ int nfs_map_group_to_gid(const struct nfs_server *, const char *, size_t, kgid_t
 int nfs_map_uid_to_name(const struct nfs_server *, kuid_t, char *, size_t);
 int nfs_map_gid_to_group(const struct nfs_server *, kgid_t, char *, size_t);
 
+int nfs_map_string_to_numeric(const char *name, size_t namelen, __u32 *res);
+
 extern unsigned int nfs_idmap_cache_timeout;
 #endif /* NFS_IDMAP_H */
diff --git a/include/linux/nfs_page.h b/include/linux/nfs_page.h
index 6c3e06ee2fb7..3eb072dbce83 100644
--- a/include/linux/nfs_page.h
+++ b/include/linux/nfs_page.h
@@ -58,6 +58,9 @@ struct nfs_pageio_ops {
         size_t  (*pg_test)(struct nfs_pageio_descriptor *, struct nfs_page *,
                            struct nfs_page *);
         int     (*pg_doio)(struct nfs_pageio_descriptor *);
+        unsigned int    (*pg_get_mirror_count)(struct nfs_pageio_descriptor *,
+                                       struct nfs_page *);
+        void    (*pg_cleanup)(struct nfs_pageio_descriptor *);
 };
 
 struct nfs_rw_ops {
@@ -69,18 +72,21 @@ struct nfs_rw_ops {
                         struct inode *);
         void (*rw_result)(struct rpc_task *, struct nfs_pgio_header *);
         void (*rw_initiate)(struct nfs_pgio_header *, struct rpc_message *,
+                            const struct nfs_rpc_ops *,
                             struct rpc_task_setup *, int);
 };
 
-struct nfs_pageio_descriptor {
+struct nfs_pgio_mirror {
         struct list_head        pg_list;
         unsigned long           pg_bytes_written;
         size_t                  pg_count;
         size_t                  pg_bsize;
         unsigned int            pg_base;
-        unsigned char           pg_moreio : 1,
-                                pg_recoalesce : 1;
+        unsigned char           pg_recoalesce : 1;
+};
 
+struct nfs_pageio_descriptor {
+        unsigned char           pg_moreio : 1;
         struct inode            *pg_inode;
         const struct nfs_pageio_ops *pg_ops;
         const struct nfs_rw_ops *pg_rw_ops;
@@ -91,8 +97,18 @@ struct nfs_pageio_descriptor {
         struct pnfs_layout_segment *pg_lseg;
         struct nfs_direct_req   *pg_dreq;
         void                    *pg_layout_private;
+        unsigned int            pg_bsize;       /* default bsize for mirrors */
+
+        u32                     pg_mirror_count;
+        struct nfs_pgio_mirror  *pg_mirrors;
+        struct nfs_pgio_mirror  pg_mirrors_static[1];
+        struct nfs_pgio_mirror  *pg_mirrors_dynamic;
+        u32                     pg_mirror_idx;  /* current mirror */
 };
 
+/* arbitrarily selected limit to number of mirrors */
+#define NFS_PAGEIO_DESCRIPTOR_MIRROR_MAX 16
+
 #define NFS_WBACK_BUSY(req)     (test_bit(PG_BUSY,&(req)->wb_flags))
 
 extern  struct nfs_page *nfs_create_request(struct nfs_open_context *ctx,
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 467c84efb596..38d96ba935c2 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -285,6 +285,7 @@ struct nfs4_layoutcommit_data {
         struct nfs_fattr fattr;
         struct list_head lseg_list;
         struct rpc_cred *cred;
+        struct inode *inode;
         struct nfs4_layoutcommit_args args;
         struct nfs4_layoutcommit_res res;
 };
@@ -293,6 +294,7 @@ struct nfs4_layoutreturn_args {
         struct nfs4_sequence_args seq_args;
         struct pnfs_layout_hdr *layout;
         struct inode *inode;
+        struct pnfs_layout_range range;
         nfs4_stateid stateid;
         __u32   layout_type;
 };
@@ -308,6 +310,7 @@ struct nfs4_layoutreturn {
         struct nfs4_layoutreturn_res res;
         struct rpc_cred *cred;
         struct nfs_client *clp;
+        struct inode *inode;
         int rpc_status;
 };
 
@@ -325,6 +328,7 @@ struct nfs_openargs {
         struct nfs_seqid *      seqid;
         int                     open_flags;
         fmode_t                 fmode;
+        u32                     share_access;
         u32                     access;
         __u64                   clientid;
         struct stateowner_id    id;
@@ -389,9 +393,10 @@ struct nfs_open_confirmres {
 struct nfs_closeargs {
         struct nfs4_sequence_args       seq_args;
         struct nfs_fh *         fh;
-        nfs4_stateid *          stateid;
+        nfs4_stateid            stateid;
         struct nfs_seqid *      seqid;
         fmode_t                 fmode;
+        u32                     share_access;
         const u32 *             bitmask;
 };
 
@@ -416,12 +421,13 @@ struct nfs_lock_args {
         struct nfs_fh *         fh;
         struct file_lock *      fl;
         struct nfs_seqid *      lock_seqid;
-        nfs4_stateid *          lock_stateid;
+        nfs4_stateid            lock_stateid;
         struct nfs_seqid *      open_seqid;
-        nfs4_stateid *          open_stateid;
+        nfs4_stateid            open_stateid;
         struct nfs_lowner       lock_owner;
         unsigned char           block : 1;
         unsigned char           reclaim : 1;
+        unsigned char           new_lock : 1;
         unsigned char           new_lock_owner : 1;
 };
 
@@ -437,7 +443,7 @@ struct nfs_locku_args {
         struct nfs_fh *         fh;
         struct file_lock *      fl;
         struct nfs_seqid *      seqid;
-        nfs4_stateid *          stateid;
+        nfs4_stateid            stateid;
 };
 
 struct nfs_locku_res {
@@ -513,6 +519,7 @@ struct nfs_pgio_res {
         struct nfs4_sequence_res        seq_res;
         struct nfs_fattr *      fattr;
         __u32                   count;
+        __u32                   op_status;
         int                     eof;            /* used by read */
         struct nfs_writeverf *  verf;           /* used by write */
         const struct nfs_server *server;        /* used by write */
@@ -532,6 +539,7 @@ struct nfs_commitargs {
 
 struct nfs_commitres {
         struct nfs4_sequence_res        seq_res;
+        __u32                   op_status;
         struct nfs_fattr        *fattr;
         struct nfs_writeverf    *verf;
         const struct nfs_server *server;
@@ -1325,7 +1333,8 @@ struct nfs_pgio_header {
         __u64                   mds_offset;     /* Filelayout dense stripe */
         struct nfs_page_array   page_array;
         struct nfs_client       *ds_clp;        /* pNFS data server */
-        int                     ds_idx;         /* ds index if ds_clp is set */
+        int                     ds_commit_idx;  /* ds index if ds_clp is set */
+        int                     pgio_mirror_idx;/* mirror index in pgio layer */
 };
 
 struct nfs_mds_commit_info {
diff --git a/include/linux/of_gpio.h b/include/linux/of_gpio.h
index 38fc05036015..69dbe312b11b 100644
--- a/include/linux/of_gpio.h
+++ b/include/linux/of_gpio.h
@@ -52,6 +52,7 @@ extern int of_get_named_gpio_flags(struct device_node *np,
 
 extern int of_mm_gpiochip_add(struct device_node *np,
                               struct of_mm_gpio_chip *mm_gc);
+extern void of_mm_gpiochip_remove(struct of_mm_gpio_chip *mm_gc);
 
 extern void of_gpiochip_add(struct gpio_chip *gc);
 extern void of_gpiochip_remove(struct gpio_chip *gc);
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h
index 5cad0e6f3552..2cdc9d422bed 100644
--- a/include/linux/perf_event.h
+++ b/include/linux/perf_event.h
@@ -907,12 +907,22 @@ struct perf_pmu_events_attr {
         const char *event_str;
 };
 
+ssize_t perf_event_sysfs_show(struct device *dev, struct device_attribute *attr,
+                              char *page);
+
 #define PMU_EVENT_ATTR(_name, _var, _id, _show)                         \
 static struct perf_pmu_events_attr _var = {                             \
         .attr = __ATTR(_name, 0444, _show, NULL),                       \
         .id   =  _id,                                                   \
 };
 
+#define PMU_EVENT_ATTR_STRING(_name, _var, _str)                            \
+static struct perf_pmu_events_attr _var = {                                 \
+        .attr           = __ATTR(_name, 0444, perf_event_sysfs_show, NULL), \
+        .id             = 0,                                                \
+        .event_str      = _str,                                             \
+};
+
 #define PMU_FORMAT_ATTR(_name, _format)                                 \
 static ssize_t                                                          \
 _name##_show(struct device *dev,                                        \
diff --git a/include/linux/pinctrl/consumer.h b/include/linux/pinctrl/consumer.h
index 18eccefea06e..72c0415d6c21 100644
--- a/include/linux/pinctrl/consumer.h
+++ b/include/linux/pinctrl/consumer.h
@@ -82,7 +82,7 @@ static inline int pinctrl_gpio_direction_output(unsigned gpio)
 
 static inline struct pinctrl * __must_check pinctrl_get(struct device *dev)
 {
-        return NULL;
+        return ERR_PTR(-ENOSYS);
 }
 
 static inline void pinctrl_put(struct pinctrl *p)
@@ -93,7 +93,7 @@ static inline struct pinctrl_state * __must_check pinctrl_lookup_state(
                                                         struct pinctrl *p,
                                                         const char *name)
 {
-        return NULL;
+        return ERR_PTR(-ENOSYS);
 }
 
 static inline int pinctrl_select_state(struct pinctrl *p,
@@ -104,7 +104,7 @@ static inline int pinctrl_select_state(struct pinctrl *p,
 
 static inline struct pinctrl * __must_check devm_pinctrl_get(struct device *dev)
 {
-        return NULL;
+        return ERR_PTR(-ENOSYS);
 }
 
 static inline void devm_pinctrl_put(struct pinctrl *p)
diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h
index d578a60eff23..fe65962b264f 100644
--- a/include/linux/pinctrl/pinconf-generic.h
+++ b/include/linux/pinctrl/pinconf-generic.h
@@ -115,6 +115,18 @@ enum pin_config_param {
         PIN_CONFIG_END = 0x7FFF,
 };
 
+#ifdef CONFIG_DEBUG_FS
+#define PCONFDUMP(a, b, c, d) { .param = a, .display = b, .format = c, \
+                                .has_arg = d }
+
+struct pin_config_item {
+        const enum pin_config_param param;
+        const char * const display;
+        const char * const format;
+        bool has_arg;
+};
+#endif /* CONFIG_DEBUG_FS */
+
 /*
  * Helpful configuration macro to be used in tables etc.
  */
@@ -150,6 +162,12 @@ static inline unsigned long pinconf_to_config_packed(enum pin_config_param param
 struct pinctrl_dev;
 struct pinctrl_map;
 
+struct pinconf_generic_params {
+        const char * const property;
+        enum pin_config_param param;
+        u32 default_value;
+};
+
 int pinconf_generic_dt_subnode_to_map(struct pinctrl_dev *pctldev,
                 struct device_node *np, struct pinctrl_map **map,
                 unsigned *reserved_maps, unsigned *num_maps,
@@ -174,6 +192,17 @@ static inline int pinconf_generic_dt_node_to_map_pin(
                         PIN_MAP_TYPE_CONFIGS_PIN);
 }
 
+static inline int pinconf_generic_dt_node_to_map_all(
+                struct pinctrl_dev *pctldev, struct device_node *np_config,
+                struct pinctrl_map **map, unsigned *num_maps)
+{
+        /*
+         * passing the type as PIN_MAP_TYPE_INVALID causes the underlying parser
+         * to infer the map type from the DT properties used.
+         */
+        return pinconf_generic_dt_node_to_map(pctldev, np_config, map, num_maps,
+                        PIN_MAP_TYPE_INVALID);
+}
 #endif
 
 #endif /* CONFIG_GENERIC_PINCONF */
diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h
index cc8e1aff0e28..66e4697516de 100644
--- a/include/linux/pinctrl/pinctrl.h
+++ b/include/linux/pinctrl/pinctrl.h
@@ -24,6 +24,7 @@ struct pinctrl_dev;
 struct pinctrl_map;
 struct pinmux_ops;
 struct pinconf_ops;
+struct pin_config_item;
 struct gpio_chip;
 struct device_node;
 
@@ -117,6 +118,12 @@ struct pinctrl_ops {
  * @confops: pin config operations vtable, if you support pin configuration in
  *      your driver
  * @owner: module providing the pin controller, used for refcounting
+ * @num_custom_params: Number of driver-specific custom parameters to be parsed
+ *      from the hardware description
+ * @custom_params: List of driver_specific custom parameters to be parsed from
+ *      the hardware description
+ * @custom_conf_items: Information how to print @params in debugfs, must be
+ *      the same size as the @custom_params, i.e. @num_custom_params
  */
 struct pinctrl_desc {
         const char *name;
@@ -126,6 +133,11 @@ struct pinctrl_desc {
         const struct pinmux_ops *pmxops;
         const struct pinconf_ops *confops;
         struct module *owner;
+#ifdef CONFIG_GENERIC_PINCONF
+        unsigned int num_custom_params;
+        const struct pinconf_generic_params *custom_params;
+        const struct pin_config_item *custom_conf_items;
+#endif
 };
 
 /* External interface to pin controller */
diff --git a/include/linux/pstore.h b/include/linux/pstore.h
index ece0c6bbfcc5..8884f6e507f7 100644
--- a/include/linux/pstore.h
+++ b/include/linux/pstore.h
@@ -39,6 +39,7 @@ enum pstore_type_id {
         PSTORE_TYPE_PPC_RTAS    = 4,
         PSTORE_TYPE_PPC_OF      = 5,
         PSTORE_TYPE_PPC_COMMON  = 6,
+        PSTORE_TYPE_PMSG        = 7,
         PSTORE_TYPE_UNKNOWN     = 255
 };
 
diff --git a/include/linux/pstore_ram.h b/include/linux/pstore_ram.h
index 4af3fdc85b01..9c9d6c154c8e 100644
--- a/include/linux/pstore_ram.h
+++ b/include/linux/pstore_ram.h
@@ -81,6 +81,7 @@ struct ramoops_platform_data {
         unsigned long   record_size;
         unsigned long   console_size;
         unsigned long   ftrace_size;
+        unsigned long   pmsg_size;
         int             dump_oops;
         struct persistent_ram_ecc_info ecc_info;
 };
diff --git a/include/linux/sunrpc/clnt.h b/include/linux/sunrpc/clnt.h
index d86acc63b25f..598ba80ec30c 100644
--- a/include/linux/sunrpc/clnt.h
+++ b/include/linux/sunrpc/clnt.h
@@ -57,7 +57,7 @@ struct rpc_clnt {
         const struct rpc_timeout *cl_timeout;   /* Timeout strategy */
 
         int                     cl_nodelen;     /* nodename length */
-        char                    cl_nodename[UNX_MAXNODENAME];
+        char                    cl_nodename[UNX_MAXNODENAME+1];
         struct rpc_pipe_dir_head cl_pipedir_objects;
         struct rpc_clnt *       cl_parent;      /* Points to parent of clones */
         struct rpc_rtt          cl_rtt_default;
@@ -112,6 +112,7 @@ struct rpc_create_args {
         struct sockaddr         *saddress;
         const struct rpc_timeout *timeout;
         const char              *servername;
+        const char              *nodename;
         const struct rpc_program *program;
         u32                     prognumber;     /* overrides program->number */
         u32                     version;
diff --git a/include/linux/sunrpc/metrics.h b/include/linux/sunrpc/metrics.h
index eecb5a71e6c0..7e61a17030a4 100644
--- a/include/linux/sunrpc/metrics.h
+++ b/include/linux/sunrpc/metrics.h
@@ -79,6 +79,8 @@ struct rpc_clnt;
 struct rpc_iostats *    rpc_alloc_iostats(struct rpc_clnt *);
 void                    rpc_count_iostats(const struct rpc_task *,
                                           struct rpc_iostats *);
+void                    rpc_count_iostats_metrics(const struct rpc_task *,
+                                          struct rpc_iostats *);
 void                    rpc_print_iostats(struct seq_file *, struct rpc_clnt *);
 void                    rpc_free_iostats(struct rpc_iostats *);
 
@@ -87,6 +89,8 @@ void			rpc_free_iostats(struct rpc_iostats *);
 static inline struct rpc_iostats *rpc_alloc_iostats(struct rpc_clnt *clnt) { return NULL; }
 static inline void rpc_count_iostats(const struct rpc_task *task,
                                      struct rpc_iostats *stats) {}
+static inline void rpc_count_iostats_metrics(const struct rpc_task *,
+                                             struct rpc_iostats *) {}
 static inline void rpc_print_iostats(struct seq_file *seq, struct rpc_clnt *clnt) {}
 static inline void rpc_free_iostats(struct rpc_iostats *stats) {}
 
diff --git a/include/linux/sunrpc/rpc_rdma.h b/include/linux/sunrpc/rpc_rdma.h
index b78f16b1dea3..f33c5a4d6fe4 100644
--- a/include/linux/sunrpc/rpc_rdma.h
+++ b/include/linux/sunrpc/rpc_rdma.h
@@ -42,6 +42,9 @@
 
 #include <linux/types.h>
 
+#define RPCRDMA_VERSION         1
+#define rpcrdma_version         cpu_to_be32(RPCRDMA_VERSION)
+
 struct rpcrdma_segment {
         __be32 rs_handle;       /* Registered memory handle */
         __be32 rs_length;       /* Length of the chunk in bytes */
@@ -95,7 +98,10 @@ struct rpcrdma_msg {
         } rm_body;
 };
 
-#define RPCRDMA_HDRLEN_MIN      28
+/*
+ * Smallest RPC/RDMA header: rm_xid through rm_type, then rm_nochunks
+ */
+#define RPCRDMA_HDRLEN_MIN      (sizeof(__be32) * 7)
 
 enum rpcrdma_errcode {
         ERR_VERS = 1,
@@ -115,4 +121,10 @@ enum rpcrdma_proc {
         RDMA_ERROR = 4          /* An RPC RDMA encoding error */
 };
 
+#define rdma_msg        cpu_to_be32(RDMA_MSG)
+#define rdma_nomsg      cpu_to_be32(RDMA_NOMSG)
+#define rdma_msgp       cpu_to_be32(RDMA_MSGP)
+#define rdma_done       cpu_to_be32(RDMA_DONE)
+#define rdma_error      cpu_to_be32(RDMA_ERROR)
+
 #endif                          /* _LINUX_SUNRPC_RPC_RDMA_H */
diff --git a/include/linux/sunrpc/svc_rdma.h b/include/linux/sunrpc/svc_rdma.h
index 975da754c778..ddfe88f52219 100644
--- a/include/linux/sunrpc/svc_rdma.h
+++ b/include/linux/sunrpc/svc_rdma.h
@@ -63,8 +63,6 @@ extern atomic_t rdma_stat_rq_prod;
 extern atomic_t rdma_stat_sq_poll;
 extern atomic_t rdma_stat_sq_prod;
 
-#define RPCRDMA_VERSION 1
-
 /*
  * Contexts are built when an RDMA request is created and are a
  * record of the resources that can be recovered when the request
diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h
index 9d27ac45b909..8b93ef53df3c 100644
--- a/include/linux/sunrpc/xprt.h
+++ b/include/linux/sunrpc/xprt.h
@@ -347,6 +347,9 @@ void			xprt_force_disconnect(struct rpc_xprt *xprt);
 void                    xprt_conditional_disconnect(struct rpc_xprt *xprt, unsigned int cookie);
 int                     xs_swapper(struct rpc_xprt *xprt, int enable);
 
+bool                    xprt_lock_connect(struct rpc_xprt *, struct rpc_task *, void *);
+void                    xprt_unlock_connect(struct rpc_xprt *, void *);
+
 /*
  * Reserved bit positions in xprt->state
  */
@@ -357,10 +360,7 @@ int			xs_swapper(struct rpc_xprt *xprt, int enable);
 #define XPRT_BOUND              (4)
 #define XPRT_BINDING            (5)
 #define XPRT_CLOSING            (6)
-#define XPRT_CONNECTION_ABORT   (7)
-#define XPRT_CONNECTION_CLOSE   (8)
 #define XPRT_CONGESTED          (9)
-#define XPRT_CONNECTION_REUSE   (10)
 
 static inline void xprt_set_connected(struct rpc_xprt *xprt)
 {
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index 85893d744901..76d1e38aabe1 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -410,12 +410,16 @@ asmlinkage long sys_newlstat(const char __user *filename,
                                 struct stat __user *statbuf);
 asmlinkage long sys_newfstat(unsigned int fd, struct stat __user *statbuf);
 asmlinkage long sys_ustat(unsigned dev, struct ustat __user *ubuf);
-#if BITS_PER_LONG == 32
+#if defined(__ARCH_WANT_STAT64) || defined(__ARCH_WANT_COMPAT_STAT64)
 asmlinkage long sys_stat64(const char __user *filename,
                                 struct stat64 __user *statbuf);
 asmlinkage long sys_fstat64(unsigned long fd, struct stat64 __user *statbuf);
 asmlinkage long sys_lstat64(const char __user *filename,
                                 struct stat64 __user *statbuf);
+asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
+                               struct stat64 __user *statbuf, int flag);
+#endif
+#if BITS_PER_LONG == 32
 asmlinkage long sys_truncate64(const char __user *path, loff_t length);
 asmlinkage long sys_ftruncate64(unsigned int fd, loff_t length);
 #endif
@@ -771,8 +775,6 @@ asmlinkage long sys_openat(int dfd, const char __user *filename, int flags,
                            umode_t mode);
 asmlinkage long sys_newfstatat(int dfd, const char __user *filename,
                                struct stat __user *statbuf, int flag);
-asmlinkage long sys_fstatat64(int dfd, const char __user *filename,
-                               struct stat64 __user *statbuf, int flag);
 asmlinkage long sys_readlinkat(int dfd, const char __user *path, char __user *buf,
                                int bufsiz);
 asmlinkage long sys_utimensat(int dfd, const char __user *filename,