From: Jon Hunter <jonathanh@nvidia.com>
To: Laxman Dewangan <ldewangan@nvidia.com>,
Vinod Koul <vinod.koul@intel.com>,
Stephen Warren <swarren@wwwdotorg.org>,
Thierry Reding <thierry.reding@gmail.com>,
Alexandre Courbot <gnurou@gmail.com>
Cc: <dmaengine@vger.kernel.org>, <linux-tegra@vger.kernel.org>,
<linux-kernel@vger.kernel.org>, Jon Hunter <jonathanh@nvidia.com>
Subject: [PATCH 1/4] DMA: tegra-apb: Remove unused variables
Date: Thu, 6 Aug 2015 14:32:30 +0100 [thread overview]
Message-ID: <1438867953-11378-2-git-send-email-jonathanh@nvidia.com> (raw)
In-Reply-To: <1438867953-11378-1-git-send-email-jonathanh@nvidia.com>
The callback and callback_param members of the tegra_dma_sg_req structure
are never used. The dma-engine structure, dma_async_tx_descriptor, defines
the same members and these are the ones used by the driver. Therefore,
remove the unused versions from the tegra_dma_sg_req structure.
The half_done member of tegra_dma_channel structure is configured but
never used and so remove it.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
---
drivers/dma/tegra20-apb-dma.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c
index eaf585e8286b..cf8cff7827f0 100644
--- a/drivers/dma/tegra20-apb-dma.c
+++ b/drivers/dma/tegra20-apb-dma.c
@@ -155,7 +155,6 @@ struct tegra_dma_sg_req {
int req_len;
bool configured;
bool last_sg;
- bool half_done;
struct list_head node;
struct tegra_dma_desc *dma_desc;
};
@@ -203,8 +202,6 @@ struct tegra_dma_channel {
/* ISR handler and tasklet for bottom half of isr handling */
dma_isr_handler isr_handler;
struct tasklet_struct tasklet;
- dma_async_tx_callback callback;
- void *callback_param;
/* Channel-slave specific configuration */
unsigned int slave_id;
@@ -1136,7 +1133,6 @@ static struct dma_async_tx_descriptor *tegra_dma_prep_dma_cyclic(
sg_req->ch_regs.apb_seq = apb_seq;
sg_req->ch_regs.ahb_seq = ahb_seq;
sg_req->configured = false;
- sg_req->half_done = false;
sg_req->last_sg = false;
sg_req->dma_desc = dma_desc;
sg_req->req_len = len;
--
2.1.4
next prev parent reply other threads:[~2015-08-06 13:33 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-06 13:32 [PATCH 0/4] DMA: tegra-apb: Clean-up Jon Hunter
2015-08-06 13:32 ` Jon Hunter [this message]
2015-08-06 13:32 ` [PATCH 2/4] DMA: tegra-apb: Avoid unnecessary channel base address calculation Jon Hunter
2015-08-06 13:32 ` [PATCH 3/4] DMA: tegra-apb: Remove unnecessary return statements and variables Jon Hunter
2015-08-06 13:32 ` [PATCH 4/4] DMA: tegra-apb: Simplify locking for device using global pause Jon Hunter
2015-08-18 10:09 ` [PATCH 0/4] DMA: tegra-apb: Clean-up Jon Hunter
2015-08-20 6:41 ` Vinod Koul
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