Merge tag 'v4.0-rc1' into patchwork

Linux 34.0-rc1

* tag 'v4.0-rc1': (8947 commits)
  Linux 4.0-rc1
  autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation
  procfs: fix race between symlink removals and traversals
  debugfs: leave freeing a symlink body until inode eviction
  Documentation/filesystems/Locking: ->get_sb() is long gone
  trylock_super(): replacement for grab_super_passive()
  fanotify: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions
  Cachefiles: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions
  VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)
  SELinux: Use d_is_positive() rather than testing dentry->d_inode
  Smack: Use d_is_positive() rather than testing dentry->d_inode
  TOMOYO: Use d_is_dir() rather than d_inode and S_ISDIR()
  Apparmor: Use d_is_positive/negative() rather than testing dentry->d_inode
  Apparmor: mediated_filesystem() should use dentry->d_sb not inode->i_sb
  VFS: Split DCACHE_FILE_TYPE into regular and special types
  VFS: Add a fallthrough flag for marking virtual dentries
  VFS: Add a whiteout dentry type
  VFS: Introduce inode-getting helpers for layered/unioned fs environments
  kernel: make READ_ONCE() valid on const arguments
  blk-throttle: check stats_cpu before reading it from sysfs
  ...

1 files changed, 2 insertions, 74 deletions

diff --git a/include/linux/iio/buffer.h b/include/linux/iio/buffer.h
index 519392763393..b65850a41127 100644
--- a/include/linux/iio/buffer.h
+++ b/include/linux/iio/buffer.h
@@ -25,9 +25,7 @@ struct iio_buffer;
  *                      available.
  * @request_update:     if a parameter change has been marked, update underlying
  *                      storage.
- * @get_bytes_per_datum:get current bytes per datum
  * @set_bytes_per_datum:set number of bytes per datum
- * @get_length:         get number of datums in buffer
  * @set_length:         set number of datums in buffer
  * @release:            called when the last reference to the buffer is dropped,
  *                      should free all resources allocated by the buffer.
@@ -49,9 +47,7 @@ struct iio_buffer_access_funcs {
 
         int (*request_update)(struct iio_buffer *buffer);
 
-        int (*get_bytes_per_datum)(struct iio_buffer *buffer);
         int (*set_bytes_per_datum)(struct iio_buffer *buffer, size_t bpd);
-        int (*get_length)(struct iio_buffer *buffer);
         int (*set_length)(struct iio_buffer *buffer, int length);
 
         void (*release)(struct iio_buffer *buffer);
@@ -85,10 +81,11 @@ struct iio_buffer {
         bool                                    scan_timestamp;
         const struct iio_buffer_access_funcs    *access;
         struct list_head                        scan_el_dev_attr_list;
+        struct attribute_group                  buffer_group;
         struct attribute_group                  scan_el_group;
         wait_queue_head_t                       pollq;
         bool                                    stufftoread;
-        const struct attribute_group *attrs;
+        const struct attribute                  **attrs;
         struct list_head                        demux_list;
         void                                    *demux_bounce;
         struct list_head                        buffer_list;
@@ -117,15 +114,6 @@ int iio_scan_mask_query(struct iio_dev *indio_dev,
                         struct iio_buffer *buffer, int bit);
 
 /**
- * iio_scan_mask_set() - set particular bit in the scan mask
- * @indio_dev           IIO device structure
- * @buffer:             the buffer whose scan mask we are interested in
- * @bit:                the bit to be set.
- **/
-int iio_scan_mask_set(struct iio_dev *indio_dev,
-                      struct iio_buffer *buffer, int bit);
-
-/**
  * iio_push_to_buffers() - push to a registered buffer.
  * @indio_dev:          iio_dev structure for device.
  * @data:               Full scan.
@@ -159,56 +147,6 @@ static inline int iio_push_to_buffers_with_timestamp(struct iio_dev *indio_dev,
 
 int iio_update_demux(struct iio_dev *indio_dev);
 
-/**
- * iio_buffer_register() - register the buffer with IIO core
- * @indio_dev:          device with the buffer to be registered
- * @channels:           the channel descriptions used to construct buffer
- * @num_channels:       the number of channels
- **/
-int iio_buffer_register(struct iio_dev *indio_dev,
-                        const struct iio_chan_spec *channels,
-                        int num_channels);
-
-/**
- * iio_buffer_unregister() - unregister the buffer from IIO core
- * @indio_dev:          the device with the buffer to be unregistered
- **/
-void iio_buffer_unregister(struct iio_dev *indio_dev);
-
-/**
- * iio_buffer_read_length() - attr func to get number of datums in the buffer
- **/
-ssize_t iio_buffer_read_length(struct device *dev,
-                               struct device_attribute *attr,
-                               char *buf);
-/**
- * iio_buffer_write_length() - attr func to set number of datums in the buffer
- **/
-ssize_t iio_buffer_write_length(struct device *dev,
-                              struct device_attribute *attr,
-                              const char *buf,
-                              size_t len);
-/**
- * iio_buffer_store_enable() - attr to turn the buffer on
- **/
-ssize_t iio_buffer_store_enable(struct device *dev,
-                                struct device_attribute *attr,
-                                const char *buf,
-                                size_t len);
-/**
- * iio_buffer_show_enable() - attr to see if the buffer is on
- **/
-ssize_t iio_buffer_show_enable(struct device *dev,
-                               struct device_attribute *attr,
-                               char *buf);
-#define IIO_BUFFER_LENGTH_ATTR DEVICE_ATTR(length, S_IRUGO | S_IWUSR,   \
-                                           iio_buffer_read_length,      \
-                                           iio_buffer_write_length)
-
-#define IIO_BUFFER_ENABLE_ATTR DEVICE_ATTR(enable, S_IRUGO | S_IWUSR,   \
-                                           iio_buffer_show_enable,      \
-                                           iio_buffer_store_enable)
-
 bool iio_validate_scan_mask_onehot(struct iio_dev *indio_dev,
         const unsigned long *mask);
 
@@ -232,16 +170,6 @@ static inline void iio_device_attach_buffer(struct iio_dev *indio_dev,
 
 #else /* CONFIG_IIO_BUFFER */
 
-static inline int iio_buffer_register(struct iio_dev *indio_dev,
-                                           const struct iio_chan_spec *channels,
-                                           int num_channels)
-{
-        return 0;
-}
-
-static inline void iio_buffer_unregister(struct iio_dev *indio_dev)
-{}
-
 static inline void iio_buffer_get(struct iio_buffer *buffer) {}
 static inline void iio_buffer_put(struct iio_buffer *buffer) {}