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From: Deepak R Varma <mh12gx2825@gmail.com>
To: outreachy-kernel@googlegroups.com
Cc: abbotti@mev.co.uk, hsweeten@visionengravers.com,
	gregkh@linuxfoundation.org, daniel.baluta@gmail.com
Subject: [PATCH] staging: comedi: dt282x: remove old unused code
Date: Wed, 11 Mar 2020 02:55:48 +0530	[thread overview]
Message-ID: <20200310212545.GA8914@deeUbuntu> (raw)

There are two #if 0 blocks that have no recent history of any change.
Remove those code blocks for improved readability of the code.

Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com>
---
 drivers/staging/comedi/drivers/dt282x.c | 30 +------------------------
 1 file changed, 1 insertion(+), 29 deletions(-)

diff --git a/drivers/staging/comedi/drivers/dt282x.c b/drivers/staging/comedi/drivers/dt282x.c
index e15e33ed94ae..89dc84d3c803 100644
--- a/drivers/staging/comedi/drivers/dt282x.c
+++ b/drivers/staging/comedi/drivers/dt282x.c
@@ -484,14 +484,7 @@ static void dt282x_ai_dma_interrupt(struct comedi_device *dev,
 		s->async->events |= COMEDI_CB_EOA;
 		return;
 	}
-#if 0
-	/* clear the dual dma flag, making this the last dma segment */
-	/* XXX probably wrong */
-	if (!devpriv->ntrig) {
-		devpriv->supcsr &= ~DT2821_SUPCSR_DDMA;
-		outw(devpriv->supcsr, dev->iobase + DT2821_SUPCSR_REG);
-	}
-#endif
+
 	/* restart the channel */
 	dt282x_prep_ai_dma(dev, dma->cur_dma, 0);
 
@@ -534,28 +527,7 @@ static irqreturn_t dt282x_interrupt(int irq, void *d)
 		s_ao->async->events |= COMEDI_CB_ERROR;
 		handled = 1;
 	}
-#if 0
-	if (adcsr & DT2821_ADCSR_ADDONE) {
-		unsigned short data;
-
-		data = inw(dev->iobase + DT2821_ADDAT_REG);
-		data &= s->maxdata;
-		if (devpriv->ad_2scomp)
-			data = comedi_offset_munge(s, data);
 
-		comedi_buf_write_samples(s, &data, 1);
-
-		devpriv->nread--;
-		if (!devpriv->nread) {
-			s->async->events |= COMEDI_CB_EOA;
-		} else {
-			if (supcsr & DT2821_SUPCSR_SCDN)
-				outw(devpriv->supcsr | DT2821_SUPCSR_STRIG,
-				     dev->iobase + DT2821_SUPCSR_REG);
-		}
-		handled = 1;
-	}
-#endif
 	comedi_handle_events(dev, s);
 	if (s_ao)
 		comedi_handle_events(dev, s_ao);
-- 
2.17.1



                 reply	other threads:[~2020-03-10 21:25 UTC|newest]

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