Staging: comedi: kcomedilib: kcomedilib_main.c: remove unused functions

Remove the unused functions from the kcomedilib_main.c file as they are
not needed.

Cc: Ian Abbott <abbotti@mev.co.uk>
Cc: Frank Mori Hess <fmhess@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
index 32c7bbb..addfcd5 100644 (file)
--- a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
+++ b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c
@@ -70,25 +70,6 @@ void *comedi_open(const char *filename)
 }
 EXPORT_SYMBOL(comedi_open);
 
-void *comedi_open_old(unsigned int minor)
-{
-       struct comedi_device_file_info *dev_file_info;
-       struct comedi_device *dev;
-
-       if (minor >= COMEDI_NUM_MINORS)
-               return NULL;
-
-       dev_file_info = comedi_get_device_file_info(minor);
-       if (dev_file_info == NULL)
-               return NULL;
-       dev = dev_file_info->device;
-
-       if (dev == NULL || !dev->attached)
-               return NULL;
-
-       return (void *)dev;
-}
-
 int comedi_close(void *d)
 {
        struct comedi_device *dev = (struct comedi_device *)d;
@@ -99,83 +80,6 @@ int comedi_close(void *d)
 }
 EXPORT_SYMBOL(comedi_close);
 
-int comedi_loglevel(int newlevel)
-{
-       return 0;
-}
-
-void comedi_perror(const char *message)
-{
-       printk(KERN_ERR "%s: unknown error\n", message);
-}
-
-char *comedi_strerror(int err)
-{
-       return "unknown error";
-}
-
-int comedi_fileno(void *d)
-{
-       struct comedi_device *dev = (struct comedi_device *)d;
-
-       /* return something random */
-       return dev->minor;
-}
-
-int comedi_command(void *d, struct comedi_cmd *cmd)
-{
-       struct comedi_device *dev = (struct comedi_device *)d;
-       struct comedi_subdevice *s;
-       struct comedi_async *async;
-       unsigned runflags;
-
-       if (cmd->subdev >= dev->n_subdevices)
-               return -ENODEV;
-
-       s = dev->subdevices + cmd->subdev;
-       if (s->type == COMEDI_SUBD_UNUSED)
-               return -EIO;
-
-       async = s->async;
-       if (async == NULL)
-               return -ENODEV;
-
-       if (s->busy)
-               return -EBUSY;
-       s->busy = d;
-
-       if (async->cb_mask & COMEDI_CB_EOS)
-               cmd->flags |= TRIG_WAKE_EOS;
-
-       async->cmd = *cmd;
-
-       runflags = SRF_RUNNING;
-
-       comedi_set_subdevice_runflags(s, ~0, runflags);
-
-       comedi_reset_async_buf(async);
-
-       return s->do_cmd(dev, s);
-}
-
-int comedi_command_test(void *d, struct comedi_cmd *cmd)
-{
-       struct comedi_device *dev = (struct comedi_device *)d;
-       struct comedi_subdevice *s;
-
-       if (cmd->subdev >= dev->n_subdevices)
-               return -ENODEV;
-
-       s = dev->subdevices + cmd->subdev;
-       if (s->type == COMEDI_SUBD_UNUSED)
-               return -EIO;
-
-       if (s->async == NULL)
-               return -ENODEV;
-
-       return s->do_cmdtest(dev, s, cmd);
-}
-
 /*
  *     COMEDI_INSN
  *     perform an instruction
@@ -302,261 +206,3 @@ error:
        return ret;
 }
 
-/*
-       COMEDI_LOCK
-       lock subdevice
-
-       arg:
-               subdevice number
-
-       reads:
-               none
-
-       writes:
-               none
-
-       necessary locking:
-       - ioctl/rt lock  (this type)
-       - lock while subdevice busy
-       - lock while subdevice being programmed
-
-*/
-int comedi_lock(void *d, unsigned int subdevice)
-{
-       struct comedi_device *dev = (struct comedi_device *)d;
-       struct comedi_subdevice *s;
-       unsigned long flags;
-       int ret = 0;
-
-       if (subdevice >= dev->n_subdevices)
-               return -EINVAL;
-
-       s = dev->subdevices + subdevice;
-
-       spin_lock_irqsave(&s->spin_lock, flags);
-
-       if (s->busy) {
-               ret = -EBUSY;
-       } else {
-               if (s->lock) {
-                       ret = -EBUSY;
-               } else {
-                       s->lock = d;
-               }
-       }
-
-       spin_unlock_irqrestore(&s->spin_lock, flags);
-
-       return ret;
-}
-
-/*
-       COMEDI_UNLOCK
-       unlock subdevice
-
-       arg:
-               subdevice number
-
-       reads:
-               none
-
-       writes:
-               none
-
-*/
-int comedi_unlock(void *d, unsigned int subdevice)
-{
-       struct comedi_device *dev = (struct comedi_device *)d;
-       struct comedi_subdevice *s;
-       unsigned long flags;
-       struct comedi_async *async;
-       int ret;
-
-       if (subdevice >= dev->n_subdevices)
-               return -EINVAL;
-
-       s = dev->subdevices + subdevice;
-
-       async = s->async;
-
-       spin_lock_irqsave(&s->spin_lock, flags);
-
-       if (s->busy) {
-               ret = -EBUSY;
-       } else if (s->lock && s->lock != (void *)d) {
-               ret = -EACCES;
-       } else {
-               s->lock = NULL;
-
-               if (async) {
-                       async->cb_mask = 0;
-                       async->cb_func = NULL;
-                       async->cb_arg = NULL;
-               }
-
-               ret = 0;
-       }
-
-       spin_unlock_irqrestore(&s->spin_lock, flags);
-
-       return ret;
-}
-
-/*
-       COMEDI_CANCEL
-       cancel acquisition ioctl
-
-       arg:
-               subdevice number
-
-       reads:
-               nothing
-
-       writes:
-               nothing
-
-*/
-int comedi_cancel(void *d, unsigned int subdevice)
-{
-       struct comedi_device *dev = (struct comedi_device *)d;
-       struct comedi_subdevice *s;
-       int ret = 0;
-
-       if (subdevice >= dev->n_subdevices)
-               return -EINVAL;
-
-       s = dev->subdevices + subdevice;
-
-       if (s->lock && s->lock != d)
-               return -EACCES;
-
-#if 0
-       if (!s->busy)
-               return 0;
-
-       if (s->busy != d)
-               return -EBUSY;
-#endif
-
-       if (!s->cancel || !s->async)
-               return -EINVAL;
-
-       ret = s->cancel(dev, s);
-
-       if (ret)
-               return ret;
-
-       comedi_set_subdevice_runflags(s, SRF_RUNNING | SRF_RT, 0);
-       s->async->inttrig = NULL;
-       s->busy = NULL;
-
-       return 0;
-}
-
-/*
-   registration of callback functions
- */
-int comedi_register_callback(void *d, unsigned int subdevice,
-                            unsigned int mask, int (*cb) (unsigned int,
-                                                          void *), void *arg)
-{
-       struct comedi_device *dev = (struct comedi_device *)d;
-       struct comedi_subdevice *s;
-       struct comedi_async *async;
-
-       if (subdevice >= dev->n_subdevices)
-               return -EINVAL;
-
-       s = dev->subdevices + subdevice;
-
-       async = s->async;
-       if (s->type == COMEDI_SUBD_UNUSED || !async)
-               return -EIO;
-
-       /* are we locked? (ioctl lock) */
-       if (s->lock && s->lock != d)
-               return -EACCES;
-
-       /* are we busy? */
-       if (s->busy)
-               return -EBUSY;
-
-       if (!mask) {
-               async->cb_mask = 0;
-               async->cb_func = NULL;
-               async->cb_arg = NULL;
-       } else {
-               async->cb_mask = mask;
-               async->cb_func = cb;
-               async->cb_arg = arg;
-       }
-
-       return 0;
-}
-
-int comedi_poll(void *d, unsigned int subdevice)
-{
-       struct comedi_device *dev = (struct comedi_device *)d;
-       struct comedi_subdevice *s = dev->subdevices;
-       struct comedi_async *async;
-
-       if (subdevice >= dev->n_subdevices)
-               return -EINVAL;
-
-       s = dev->subdevices + subdevice;
-
-       async = s->async;
-       if (s->type == COMEDI_SUBD_UNUSED || !async)
-               return -EIO;
-
-       /* are we locked? (ioctl lock) */
-       if (s->lock && s->lock != d)
-               return -EACCES;
-
-       /* are we running? XXX wrong? */
-       if (!s->busy)
-               return -EIO;
-
-       return s->poll(dev, s);
-}
-
-/* WARNING: not portable */
-int comedi_map(void *d, unsigned int subdevice, void *ptr)
-{
-       struct comedi_device *dev = (struct comedi_device *)d;
-       struct comedi_subdevice *s;
-
-       if (subdevice >= dev->n_subdevices)
-               return -EINVAL;
-
-       s = dev->subdevices + subdevice;
-
-       if (!s->async)
-               return -EINVAL;
-
-       if (ptr)
-               *((void **)ptr) = s->async->prealloc_buf;
-
-       /* XXX no reference counting */
-
-       return 0;
-}
-
-/* WARNING: not portable */
-int comedi_unmap(void *d, unsigned int subdevice)
-{
-       struct comedi_device *dev = (struct comedi_device *)d;
-       struct comedi_subdevice *s;
-
-       if (subdevice >= dev->n_subdevices)
-               return -EINVAL;
-
-       s = dev->subdevices + subdevice;
-
-       if (!s->async)
-               return -EINVAL;
-
-       /* XXX no reference counting */
-
-       return 0;
-}