dmaengine: remove DMA_SG as it is dead code in kernel

There are no in kernel consumers for DMA_SG op. Removing operation,
dead code, and test code in dmatest.

Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Cc: Gary Hook <gary.hook@amd.com>
Cc: Ludovic Desroches <ludovic.desroches@microchip.com>
Cc: Kedareswara rao Appana <appana.durga.rao@xilinx.com>
Cc: Li Yang <leoyang.li@nxp.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

1 files changed, 0 insertions, 23 deletions

diff --git a/drivers/crypto/ccp/ccp-dmaengine.c b/drivers/crypto/ccp/ccp-dmaengine.c
index e00be01fbf5a..3f7d54f4728c 100644
--- a/drivers/crypto/ccp/ccp-dmaengine.c
+++ b/drivers/crypto/ccp/ccp-dmaengine.c
@@ -502,27 +502,6 @@ static struct dma_async_tx_descriptor *ccp_prep_dma_memcpy(
 	return &desc->tx_desc;
 }
 
-static struct dma_async_tx_descriptor *ccp_prep_dma_sg(
-	struct dma_chan *dma_chan, struct scatterlist *dst_sg,
-	unsigned int dst_nents, struct scatterlist *src_sg,
-	unsigned int src_nents, unsigned long flags)
-{
-	struct ccp_dma_chan *chan = container_of(dma_chan, struct ccp_dma_chan,
-						 dma_chan);
-	struct ccp_dma_desc *desc;
-
-	dev_dbg(chan->ccp->dev,
-		"%s - src=%p, src_nents=%u dst=%p, dst_nents=%u, flags=%#lx\n",
-		__func__, src_sg, src_nents, dst_sg, dst_nents, flags);
-
-	desc = ccp_create_desc(dma_chan, dst_sg, dst_nents, src_sg, src_nents,
-			       flags);
-	if (!desc)
-		return NULL;
-
-	return &desc->tx_desc;
-}
-
 static struct dma_async_tx_descriptor *ccp_prep_dma_interrupt(
 	struct dma_chan *dma_chan, unsigned long flags)
 {
@@ -704,7 +683,6 @@ int ccp_dmaengine_register(struct ccp_device *ccp)
 	dma_dev->directions = DMA_MEM_TO_MEM;
 	dma_dev->residue_granularity = DMA_RESIDUE_GRANULARITY_DESCRIPTOR;
 	dma_cap_set(DMA_MEMCPY, dma_dev->cap_mask);
-	dma_cap_set(DMA_SG, dma_dev->cap_mask);
 	dma_cap_set(DMA_INTERRUPT, dma_dev->cap_mask);
 
 	/* The DMA channels for this device can be set to public or private,
@@ -740,7 +718,6 @@ int ccp_dmaengine_register(struct ccp_device *ccp)
 
 	dma_dev->device_free_chan_resources = ccp_free_chan_resources;
 	dma_dev->device_prep_dma_memcpy = ccp_prep_dma_memcpy;
-	dma_dev->device_prep_dma_sg = ccp_prep_dma_sg;
 	dma_dev->device_prep_dma_interrupt = ccp_prep_dma_interrupt;
 	dma_dev->device_issue_pending = ccp_issue_pending;
 	dma_dev->device_tx_status = ccp_tx_status;