[PATCH v2 01/12] async_tx: replace direct ->device_prep*() calls with standard DMA engine API

[Frank . Li]

From: Frank Li <Frank.Li@xxxxxxx>

DMA engine consumers must not call the channel's device_prep_*() function
pointers directly. Use the standard dmaengine wrapper APIs instead.

Assisted-by: LLM
Signed-off-by: Frank Li <Frank.Li@xxxxxxx>
---
 crypto/async_tx/async_memcpy.c | 6 +++---
 crypto/async_tx/async_tx.c     | 4 ++--
 include/linux/async_tx.h       | 8 ++------
 3 files changed, 7 insertions(+), 11 deletions(-)

diff --git a/crypto/async_tx/async_memcpy.c b/crypto/async_tx/async_memcpy.c
index c538e30e99094..627b6ad9313e0 100644
--- a/crypto/async_tx/async_memcpy.c
+++ b/crypto/async_tx/async_memcpy.c
@@ -58,9 +58,9 @@ async_memcpy(struct page *dest, struct page *src, unsigned int dest_offset,
 					      DMA_FROM_DEVICE);
 		unmap->len = len;
 
-		tx = device->device_prep_dma_memcpy(chan, unmap->addr[1],
-						    unmap->addr[0], len,
-						    dma_prep_flags);
+		tx = dmaengine_prep_dma_memcpy(chan, unmap->addr[1],
+					       unmap->addr[0], len,
+					       dma_prep_flags);
 	}
 
 	if (tx) {
diff --git a/crypto/async_tx/async_tx.c b/crypto/async_tx/async_tx.c
index ad72057a5e0d7..01ef830675574 100644
--- a/crypto/async_tx/async_tx.c
+++ b/crypto/async_tx/async_tx.c
@@ -79,7 +79,7 @@ async_tx_channel_switch(struct dma_async_tx_descriptor *depend_tx,
 
 	/* attached dependency, flush the parent channel */
 	if (!intr_tx) {
-		device->device_issue_pending(chan);
+		dma_async_issue_pending(chan);
 		return;
 	}
 
@@ -113,7 +113,7 @@ async_tx_channel_switch(struct dma_async_tx_descriptor *depend_tx,
 			intr_tx->tx_submit(intr_tx);
 			async_tx_ack(intr_tx);
 		}
-		device->device_issue_pending(chan);
+		dma_async_issue_pending(chan);
 	} else {
 		if (dma_wait_for_async_tx(depend_tx) != DMA_COMPLETE)
 			panic("%s: DMA error waiting for depend_tx\n",
diff --git a/include/linux/async_tx.h b/include/linux/async_tx.h
index 1ca9f9e05f4f1..9f7fef19f2142 100644
--- a/include/linux/async_tx.h
+++ b/include/linux/async_tx.h
@@ -87,12 +87,8 @@ struct async_submit_ctl {
  */
 static inline void async_tx_issue_pending(struct dma_async_tx_descriptor *tx)
 {
-	if (likely(tx)) {
-		struct dma_chan *chan = tx->chan;
-		struct dma_device *dma = chan->device;
-
-		dma->device_issue_pending(chan);
-	}
+	if (likely(tx))
+		dma_async_issue_pending(tx->chan);
 }
 #ifdef CONFIG_ARCH_HAS_ASYNC_TX_FIND_CHANNEL
 #include <asm/async_tx.h>

-- 
2.43.0