`mite_sync_input_dma()` in the "mite" module currently takes a pointer
to a `struct comedi_async` and gets a pointer to the owning `struct
comedi_subdevice` from the `subdevice` member. Change it to take a
pointer to a `struct comedi_subdevice` and use the `async` member.
The motivation for this is to eliminate the `subdevice` member of
`struct comedi_async`.
Signed-off-by: Ian Abbott <abbo...@mev.co.uk>
---
drivers/staging/comedi/drivers/mite.c | 4 ++--
drivers/staging/comedi/drivers/mite.h | 2 +-
drivers/staging/comedi/drivers/ni_660x.c | 2 +-
drivers/staging/comedi/drivers/ni_mio_common.c | 2 +-
drivers/staging/comedi/drivers/ni_pcidio.c | 4 ++--
drivers/staging/comedi/drivers/ni_tiocmd.c | 2 +-
6 files changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/staging/comedi/drivers/mite.c
b/drivers/staging/comedi/drivers/mite.c
index 2d224cf..f473841 100644
--- a/drivers/staging/comedi/drivers/mite.c
+++ b/drivers/staging/comedi/drivers/mite.c
@@ -526,9 +526,9 @@ void mite_dma_disarm(struct mite_channel *mite_chan)
EXPORT_SYMBOL_GPL(mite_dma_disarm);
int mite_sync_input_dma(struct mite_channel *mite_chan,
- struct comedi_async *async)
+ struct comedi_subdevice *s)
{
- struct comedi_subdevice *s = async->subdevice;
+ struct comedi_async *async = s->async;
int count;
unsigned int nbytes, old_alloc_count;
diff --git a/drivers/staging/comedi/drivers/mite.h
b/drivers/staging/comedi/drivers/mite.h
index 929b9bb..ba3ad0c 100644
--- a/drivers/staging/comedi/drivers/mite.h
+++ b/drivers/staging/comedi/drivers/mite.h
@@ -106,7 +106,7 @@ unsigned mite_dma_tcr(struct mite_channel *mite_chan);
void mite_dma_arm(struct mite_channel *mite_chan);
void mite_dma_disarm(struct mite_channel *mite_chan);
int mite_sync_input_dma(struct mite_channel *mite_chan,
- struct comedi_async *async);
+ struct comedi_subdevice *s);
int mite_sync_output_dma(struct mite_channel *mite_chan,
struct comedi_async *async);
u32 mite_bytes_written_to_memory_lb(struct mite_channel *mite_chan);
diff --git a/drivers/staging/comedi/drivers/ni_660x.c
b/drivers/staging/comedi/drivers/ni_660x.c
index 3901e3b..634cde8 100644
--- a/drivers/staging/comedi/drivers/ni_660x.c
+++ b/drivers/staging/comedi/drivers/ni_660x.c
@@ -823,7 +823,7 @@ static int ni_660x_input_poll(struct comedi_device *dev,
/* lock to avoid race with comedi_poll */
spin_lock_irqsave(&devpriv->interrupt_lock, flags);
- mite_sync_input_dma(counter->mite_chan, s->async);
+ mite_sync_input_dma(counter->mite_chan, s);
spin_unlock_irqrestore(&devpriv->interrupt_lock, flags);
return comedi_buf_read_n_available(s);
}
diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c
b/drivers/staging/comedi/drivers/ni_mio_common.c
index e54488c..953130b 100644
--- a/drivers/staging/comedi/drivers/ni_mio_common.c
+++ b/drivers/staging/comedi/drivers/ni_mio_common.c
@@ -864,7 +864,7 @@ static void ni_sync_ai_dma(struct comedi_device *dev)
spin_lock_irqsave(&devpriv->mite_channel_lock, flags);
if (devpriv->ai_mite_chan)
- mite_sync_input_dma(devpriv->ai_mite_chan, s->async);
+ mite_sync_input_dma(devpriv->ai_mite_chan, s);
spin_unlock_irqrestore(&devpriv->mite_channel_lock, flags);
}
diff --git a/drivers/staging/comedi/drivers/ni_pcidio.c
b/drivers/staging/comedi/drivers/ni_pcidio.c
index 1f84235..14aaa58 100644
--- a/drivers/staging/comedi/drivers/ni_pcidio.c
+++ b/drivers/staging/comedi/drivers/ni_pcidio.c
@@ -359,7 +359,7 @@ static int ni_pcidio_poll(struct comedi_device *dev, struct
comedi_subdevice *s)
spin_lock_irqsave(&dev->spinlock, irq_flags);
spin_lock(&devpriv->mite_channel_lock);
if (devpriv->di_mite_chan)
- mite_sync_input_dma(devpriv->di_mite_chan, s->async);
+ mite_sync_input_dma(devpriv->di_mite_chan, s);
spin_unlock(&devpriv->mite_channel_lock);
count = s->async->buf_write_count - s->async->buf_read_count;
spin_unlock_irqrestore(&dev->spinlock, irq_flags);
@@ -405,7 +405,7 @@ static irqreturn_t nidio_interrupt(int irq, void *d)
writel(CHOR_CLRLC,
mite->mite_io_addr +
MITE_CHOR(devpriv->di_mite_chan->channel));
- mite_sync_input_dma(devpriv->di_mite_chan, s->async);
+ mite_sync_input_dma(devpriv->di_mite_chan, s);
/* XXX need to byteswap */
}
if (m_status & ~(CHSR_INT | CHSR_LINKC | CHSR_DONE | CHSR_DRDY |
diff --git a/drivers/staging/comedi/drivers/ni_tiocmd.c
b/drivers/staging/comedi/drivers/ni_tiocmd.c
index 9cc77c0..2557ab4 100644
--- a/drivers/staging/comedi/drivers/ni_tiocmd.c
+++ b/drivers/staging/comedi/drivers/ni_tiocmd.c
@@ -464,7 +464,7 @@ void ni_tio_handle_interrupt(struct ni_gpct *counter,
counter->mite_chan->mite->mite_io_addr +
MITE_CHOR(counter->mite_chan->channel));
}
- mite_sync_input_dma(counter->mite_chan, s->async);
+ mite_sync_input_dma(counter->mite_chan, s);
spin_unlock_irqrestore(&counter->lock, flags);
}
EXPORT_SYMBOL_GPL(ni_tio_handle_interrupt);
--
1.9.2
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