linux-kernel - [PATCH v7 11/19] dmaengine: tegra-apb: Remove pending_sg_req checking from tdc_start_head

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Date:   Mon,  3 Feb 2020 01:28:46 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Laxman Dewangan <ldewangan@...dia.com>,
        Vinod Koul <vkoul@...nel.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Michał Mirosław <mirq-linux@...e.qmqm.pl>
Cc:     dmaengine@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v7 11/19] dmaengine: tegra-apb: Remove pending_sg_req checking from tdc_start_head_req

There are only two places in the driver that use tdc_start_head_req()
and both these places check whether pending_sg_req list is empty before
invoking tdc_start_head_req().

Signed-off-by: Dmitry Osipenko <digetx@...il.com>
---
 drivers/dma/tegra20-apb-dma.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index 22b88ccff05d..62d181bd5e62 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;
-- 
2.24.0