From: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
To: vkoul@kernel.org, dan.j.williams@intel.com,
michal.simek@xilinx.com, nick.graumann@gmail.com,
andrea.merello@gmail.com, appana.durga.rao@xilinx.com,
mcgrof@kernel.org
Cc: dmaengine@vger.kernel.org, linux-kernel@vger.kernel.org,
Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Subject: [PATCH -next 1/8] dmaengine: xilinx_dma: Remove desc_callback_valid check
Date: Thu, 5 Sep 2019 22:06:57 +0530 [thread overview]
Message-ID: <1567701424-25658-2-git-send-email-radhey.shyam.pandey@xilinx.com> (raw)
In-Reply-To: <1567701424-25658-1-git-send-email-radhey.shyam.pandey@xilinx.com>
In descriptor cleanup the call to desc_callback_valid can be safely
removed as both callback pointers i.e callback_result and callback
are anyway checked in invoke(). There is no much benefit in having
redundant checks.
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Signed-off-by: Nicholas Graumann <nick.graumann@gmail.com>
Reviewed-by: Appana Durga Kedareswara rao <appana.durga.rao@xilinx.com>
---
drivers/dma/xilinx/xilinx_dma.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index e7dc3c4..8bbf997 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -832,11 +832,9 @@ static void xilinx_dma_chan_desc_cleanup(struct xilinx_dma_chan *chan)
/* Run the link descriptor callback function */
dmaengine_desc_get_callback(&desc->async_tx, &cb);
- if (dmaengine_desc_callback_valid(&cb)) {
- spin_unlock_irqrestore(&chan->lock, flags);
- dmaengine_desc_callback_invoke(&cb, NULL);
- spin_lock_irqsave(&chan->lock, flags);
- }
+ spin_unlock_irqrestore(&chan->lock, flags);
+ dmaengine_desc_callback_invoke(&cb, NULL);
+ spin_lock_irqsave(&chan->lock, flags);
/* Run any dependencies, then free the descriptor */
dma_run_dependencies(&desc->async_tx);
--
2.7.4
next prev parent reply other threads:[~2019-09-05 16:37 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-09-05 16:36 [PATCH -next 0/8] AXI DMA driver improvements Radhey Shyam Pandey
2019-09-05 16:36 ` Radhey Shyam Pandey [this message]
2019-09-05 16:36 ` [PATCH -next 2/8] dmaengine: xilinx_dma: Merge get_callback and _invoke Radhey Shyam Pandey
2019-09-05 16:36 ` [PATCH -next 3/8] dmaengine: xilinx_dma: Introduce xilinx_dma_get_residue Radhey Shyam Pandey
2019-09-25 21:01 ` Vinod Koul
2019-09-26 5:52 ` Radhey Shyam Pandey
2019-09-26 17:18 ` Vinod Koul
2019-09-27 5:16 ` Radhey Shyam Pandey
2019-10-01 12:03 ` Radhey Shyam Pandey
2019-09-05 16:37 ` [PATCH -next 4/8] dmaengine: xilinx_dma: Add callback_result support Radhey Shyam Pandey
2019-09-05 16:37 ` [PATCH -next 5/8] dmaengine: xilinx_dma: Remove residue from channel data Radhey Shyam Pandey
2019-09-05 16:37 ` [PATCH -next 6/8] dmaengine: xilinx_dma: Print debug message when no free tx segments Radhey Shyam Pandey
2019-09-05 16:37 ` [PATCH -next 7/8] dmaengine: xilinx_dma: Check for both idle and halted state in axidma stop_transfer Radhey Shyam Pandey
2019-09-26 17:21 ` Vinod Koul
2019-09-27 6:48 ` Radhey Shyam Pandey
2019-09-27 13:57 ` Nicholas Graumann
2019-09-27 16:53 ` Radhey Shyam Pandey
2019-09-05 16:37 ` [PATCH -next 8/8] dmaengine: xilinx_dma: Clear desc_pendingcount in xilinx_dma_reset Radhey Shyam Pandey
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