lkml.org 
[lkml]   [2019]   [Sep]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 4/4] dmaengine: imx-sdma: drop redundant variable
Date
In sdma_prep_dma_cyclic buf is redundant. Drop it.

Signed-off-by: Philipp Puschmann <philipp.puschmann@emlix.com>
---
drivers/dma/imx-sdma.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index 6a5a84504858..5b6beeee9f0e 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -1544,7 +1544,7 @@ static struct dma_async_tx_descriptor *sdma_prep_dma_cyclic(
struct sdma_engine *sdma = sdmac->sdma;
int num_periods = buf_len / period_len;
int channel = sdmac->channel;
- int i = 0, buf = 0;
+ int i;
struct sdma_desc *desc;

dev_dbg(sdma->dev, "%s channel: %d\n", __func__, channel);
@@ -1565,7 +1565,7 @@ static struct dma_async_tx_descriptor *sdma_prep_dma_cyclic(
goto err_bd_out;
}

- while (buf < buf_len) {
+ for (i = 0; i < num_periods; i++) {
struct sdma_buffer_descriptor *bd = &desc->bd[i];
int param;

@@ -1592,9 +1592,6 @@ static struct dma_async_tx_descriptor *sdma_prep_dma_cyclic(
bd->mode.status = param;

dma_addr += period_len;
- buf += period_len;
-
- i++;
}

return vchan_tx_prep(&sdmac->vc, &desc->vd, flags);
--
2.23.0
\
 
 \ /
  Last update: 2019-09-11 16:57    [W:2.294 / U:0.240 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site