These changes are the raw update to linux-4.4.6-rt14. Kernel sources

[kvmfornfv.git] / kernel / drivers / iio / buffer_cb.c

diff --git a/kernel/drivers/iio/buffer_cb.c b/kernel/drivers/iio/buffer_cb.c
deleted file mode 100644 (file)
index eb46e72..0000000
--- a/kernel/drivers/iio/buffer_cb.c
+++ /dev/null
@@ -1,124 +0,0 @@
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/err.h>
-#include <linux/export.h>
-#include <linux/iio/buffer.h>
-#include <linux/iio/consumer.h>
-
-struct iio_cb_buffer {
-       struct iio_buffer buffer;
-       int (*cb)(const void *data, void *private);
-       void *private;
-       struct iio_channel *channels;
-};
-
-static struct iio_cb_buffer *buffer_to_cb_buffer(struct iio_buffer *buffer)
-{
-       return container_of(buffer, struct iio_cb_buffer, buffer);
-}
-
-static int iio_buffer_cb_store_to(struct iio_buffer *buffer, const void *data)
-{
-       struct iio_cb_buffer *cb_buff = buffer_to_cb_buffer(buffer);
-       return cb_buff->cb(data, cb_buff->private);
-}
-
-static void iio_buffer_cb_release(struct iio_buffer *buffer)
-{
-       struct iio_cb_buffer *cb_buff = buffer_to_cb_buffer(buffer);
-       kfree(cb_buff->buffer.scan_mask);
-       kfree(cb_buff);
-}
-
-static const struct iio_buffer_access_funcs iio_cb_access = {
-       .store_to = &iio_buffer_cb_store_to,
-       .release = &iio_buffer_cb_release,
-};
-
-struct iio_cb_buffer *iio_channel_get_all_cb(struct device *dev,
-                                            int (*cb)(const void *data,
-                                                      void *private),
-                                            void *private)
-{
-       int ret;
-       struct iio_cb_buffer *cb_buff;
-       struct iio_dev *indio_dev;
-       struct iio_channel *chan;
-
-       cb_buff = kzalloc(sizeof(*cb_buff), GFP_KERNEL);
-       if (cb_buff == NULL)
-               return ERR_PTR(-ENOMEM);
-
-       iio_buffer_init(&cb_buff->buffer);
-
-       cb_buff->private = private;
-       cb_buff->cb = cb;
-       cb_buff->buffer.access = &iio_cb_access;
-       INIT_LIST_HEAD(&cb_buff->buffer.demux_list);
-
-       cb_buff->channels = iio_channel_get_all(dev);
-       if (IS_ERR(cb_buff->channels)) {
-               ret = PTR_ERR(cb_buff->channels);
-               goto error_free_cb_buff;
-       }
-
-       indio_dev = cb_buff->channels[0].indio_dev;
-       cb_buff->buffer.scan_mask
-               = kcalloc(BITS_TO_LONGS(indio_dev->masklength), sizeof(long),
-                         GFP_KERNEL);
-       if (cb_buff->buffer.scan_mask == NULL) {
-               ret = -ENOMEM;
-               goto error_release_channels;
-       }
-       chan = &cb_buff->channels[0];
-       while (chan->indio_dev) {
-               if (chan->indio_dev != indio_dev) {
-                       ret = -EINVAL;
-                       goto error_free_scan_mask;
-               }
-               set_bit(chan->channel->scan_index,
-                       cb_buff->buffer.scan_mask);
-               chan++;
-       }
-
-       return cb_buff;
-
-error_free_scan_mask:
-       kfree(cb_buff->buffer.scan_mask);
-error_release_channels:
-       iio_channel_release_all(cb_buff->channels);
-error_free_cb_buff:
-       kfree(cb_buff);
-       return ERR_PTR(ret);
-}
-EXPORT_SYMBOL_GPL(iio_channel_get_all_cb);
-
-int iio_channel_start_all_cb(struct iio_cb_buffer *cb_buff)
-{
-       return iio_update_buffers(cb_buff->channels[0].indio_dev,
-                                 &cb_buff->buffer,
-                                 NULL);
-}
-EXPORT_SYMBOL_GPL(iio_channel_start_all_cb);
-
-void iio_channel_stop_all_cb(struct iio_cb_buffer *cb_buff)
-{
-       iio_update_buffers(cb_buff->channels[0].indio_dev,
-                          NULL,
-                          &cb_buff->buffer);
-}
-EXPORT_SYMBOL_GPL(iio_channel_stop_all_cb);
-
-void iio_channel_release_all_cb(struct iio_cb_buffer *cb_buff)
-{
-       iio_channel_release_all(cb_buff->channels);
-       iio_buffer_put(&cb_buff->buffer);
-}
-EXPORT_SYMBOL_GPL(iio_channel_release_all_cb);
-
-struct iio_channel
-*iio_channel_cb_get_channels(const struct iio_cb_buffer *cb_buffer)
-{
-       return cb_buffer->channels;
-}
-EXPORT_SYMBOL_GPL(iio_channel_cb_get_channels);