* [PATCH] crypto: ccp - unmap descriptor before completing cookie
@ 2026-10-10 12:50 Wolfram Sang
2026-10-12 10:43 ` Wolfram Sang
0 siblings, 1 reply; 2+ messages in thread
From: Wolfram Sang @ 2026-10-10 12:50 UTC (permalink / raw)
To: dmaengine
Cc: Wolfram Sang, Tom Lendacky, John Allen, Herbert Xu,
David S. Miller, linux-crypto
To ensure that buffers are flushed, make sure that the descriptor gets
unmapped before completing the cookie.
Link: https://lore.kernel.org/r/20261009093745.539924-1-vkoul@kernel.org
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
Build tested only.
drivers/crypto/ccp/ccp-dmaengine.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/crypto/ccp/ccp-dmaengine.c b/drivers/crypto/ccp/ccp-dmaengine.c
index b386a7063818..02c6c5fc7db1 100644
--- a/drivers/crypto/ccp/ccp-dmaengine.c
+++ b/drivers/crypto/ccp/ccp-dmaengine.c
@@ -224,8 +224,8 @@ static struct ccp_dma_desc *ccp_handle_active_desc(struct ccp_dma_chan *chan,
"%s - tx %d complete, status=%u\n", __func__,
desc->tx_desc.cookie, desc->status);
- dma_cookie_complete(tx_desc);
dma_descriptor_unmap(tx_desc);
+ dma_cookie_complete(tx_desc);
}
desc = __ccp_next_dma_desc(chan, desc);
--
2.53.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] crypto: ccp - unmap descriptor before completing cookie
2026-10-10 12:50 [PATCH] crypto: ccp - unmap descriptor before completing cookie Wolfram Sang
@ 2026-10-12 10:43 ` Wolfram Sang
0 siblings, 0 replies; 2+ messages in thread
From: Wolfram Sang @ 2026-10-12 10:43 UTC (permalink / raw)
To: dmaengine
Cc: Tom Lendacky, John Allen, Herbert Xu, David S. Miller,
linux-crypto
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On Sat, Oct 10, 2026 at 02:50:03PM +0200, Wolfram Sang wrote:
> To ensure that buffers are flushed, make sure that the descriptor gets
> unmapped before completing the cookie.
>
> Link: https://lore.kernel.org/r/20261009093745.539924-1-vkoul@kernel.org
> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
I'd like to drop this patch because Sashiko reported an issue with it
which I am not able to analyze.
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