023-0004-crypto4xx_core-don-t-abuse-__dma_sync_page.patch

From 67d8208fba1324fa0198f9fc58a9edbe09596947 Mon Sep 17 00:00:00 2001
From: Christoph Hellwig <hch@lst.de>
Date: Sun, 16 Dec 2018 18:19:46 +0100
Subject: [PATCH 04/15] crypto4xx_core: don't abuse __dma_sync_page

This function is internal to the DMA API implementation. Instead use
the DMA API to properly unmap. Note that the DMA API usage in this
driver is a disaster and urgently needs some work - it is missing all
the unmaps, seems to do a secondary map where it looks like it should
to a unmap in one place to work around cache coherency and the
directions passed in seem to be partially wrong.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
 drivers/crypto/amcc/crypto4xx_core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/crypto/amcc/crypto4xx_core.c
+++ b/drivers/crypto/amcc/crypto4xx_core.c
@@ -592,7 +592,7 @@ static void crypto4xx_aead_done(struct c
 					  pd->pd_ctl_len.bf.pkt_len,
 					  dst);
 	} else {
-		__dma_sync_page(sg_page(dst), dst->offset, dst->length,
+		dma_unmap_page(dev->core_dev->device, pd->dest, dst->length,
 				DMA_FROM_DEVICE);
 	}