lkml.org 
[lkml]   [2020]   [Feb]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v8 11/19] dmaengine: tegra-apb: Remove duplicated pending_sg_req checks
Date
There are few place in the code which check whether pending_sg_req list is
empty despite of the check already being done. Let's remove the duplicated
checks to keep code clean.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
drivers/dma/tegra20-apb-dma.c | 12 ------------
1 file changed, 12 deletions(-)

diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index 22b88ccff05d..049e98ae1240 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -504,9 +504,6 @@ static void tdc_start_head_req(struct tegra_dma_channel *tdc)
{
struct tegra_dma_sg_req *sg_req;

- if (list_empty(&tdc->pending_sg_req))
- return;
-
sg_req = list_first_entry(&tdc->pending_sg_req, typeof(*sg_req), node);
tegra_dma_start(tdc, sg_req);
sg_req->configured = true;
@@ -518,9 +515,6 @@ static void tdc_configure_next_head_desc(struct tegra_dma_channel *tdc)
{
struct tegra_dma_sg_req *hsgreq, *hnsgreq;

- if (list_empty(&tdc->pending_sg_req))
- return;
-
hsgreq = list_first_entry(&tdc->pending_sg_req, typeof(*hsgreq), node);
if (!list_is_last(&hsgreq->node, &tdc->pending_sg_req)) {
hnsgreq = list_first_entry(&hsgreq->node, typeof(*hnsgreq),
@@ -567,12 +561,6 @@ static bool handle_continuous_head_request(struct tegra_dma_channel *tdc,
{
struct tegra_dma_sg_req *hsgreq;

- if (list_empty(&tdc->pending_sg_req)) {
- dev_err(tdc2dev(tdc), "DMA is running without req\n");
- tegra_dma_stop(tdc);
- return false;
- }
-
/*
* Check that head req on list should be in flight.
* If it is not in flight then abort transfer as
--
2.24.0
\
 
 \ /
  Last update: 2020-02-09 17:42    [W:0.223 / U:0.292 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site