14 	struct kfifo kf;  member
27 	return __kfifo_alloc((struct __kfifo *)&buf->kf, length,  in __iio_allocate_kfifo()
38 		kfifo_free(&buf->kf);  in iio_request_update_kfifo()
44 		kfifo_reset_out(&buf->kf);  in iio_request_update_kfifo()
53 	struct iio_kfifo *kf = iio_to_kfifo(r);  in iio_mark_update_needed_kfifo()  local
54 	kf->update_needed = true;  in iio_mark_update_needed_kfifo()
83 	struct iio_kfifo *kf = iio_to_kfifo(r);  in iio_store_to_kfifo()  local
84 	ret = kfifo_in(&kf->kf, data, 1);  in iio_store_to_kfifo()
94 	struct iio_kfifo *kf = iio_to_kfifo(r);  in iio_read_first_n_kfifo()  local
96 	if (mutex_lock_interruptible(&kf->user_lock))  in iio_read_first_n_kfifo()
99 	if (!kfifo_initialized(&kf->kf) || n < kfifo_esize(&kf->kf))  in iio_read_first_n_kfifo()
102 		ret = kfifo_to_user(&kf->kf, buf, n, &copied);  in iio_read_first_n_kfifo()
103 	mutex_unlock(&kf->user_lock);  in iio_read_first_n_kfifo()
112 	struct iio_kfifo *kf = iio_to_kfifo(r);  in iio_kfifo_buf_data_available()  local
115 	mutex_lock(&kf->user_lock);  in iio_kfifo_buf_data_available()
116 	samples = kfifo_len(&kf->kf);  in iio_kfifo_buf_data_available()
117 	mutex_unlock(&kf->user_lock);  in iio_kfifo_buf_data_available()
124 	struct iio_kfifo *kf = iio_to_kfifo(buffer);  in iio_kfifo_buffer_release()  local
126 	mutex_destroy(&kf->user_lock);  in iio_kfifo_buffer_release()
127 	kfifo_free(&kf->kf);  in iio_kfifo_buffer_release()
128 	kfree(kf);  in iio_kfifo_buffer_release()
145 	struct iio_kfifo *kf;  in iio_kfifo_allocate()  local
147 	kf = kzalloc(sizeof(*kf), GFP_KERNEL);  in iio_kfifo_allocate()
148 	if (!kf)  in iio_kfifo_allocate()
151 	kf->update_needed = true;  in iio_kfifo_allocate()
152 	iio_buffer_init(&kf->buffer);  in iio_kfifo_allocate()
153 	kf->buffer.access = &kfifo_access_funcs;  in iio_kfifo_allocate()
154 	kf->buffer.length = 2;  in iio_kfifo_allocate()
155 	mutex_init(&kf->user_lock);  in iio_kfifo_allocate()
157 	return &kf->buffer;  in iio_kfifo_allocate()