From: Greg Kroah-Hartman Date: Mon, 3 May 2010 21:41:28 +0000 (-0700) Subject: Staging: comedi: kcomedilib: kcomedilib_main.c: remove unused functions X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=6b18af18d2c48c07864cf38b5475a0f4d1913bc4;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git 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 Cc: Frank Mori Hess Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/kcomedilib/kcomedilib_main.c b/drivers/staging/comedi/kcomedilib/kcomedilib_main.c index 32c7bbb8d78a..addfcd5a7a7f 100644 --- 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; -}