Patch "dmaengine: at_xdmac: Print debug message after realeasing the lock" has been added to the 4.4-stable tree

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This is a note to let you know that I've just added the patch titled

    dmaengine: at_xdmac: Print debug message after realeasing the lock

to the 4.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     dmaengine-at_xdmac-print-debug-message-after-realeasing-the-lock.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 5edc24ac876a928f36f407a0fcdb33b94a3a210f Mon Sep 17 00:00:00 2001
From: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
Date: Wed, 15 Dec 2021 13:01:06 +0200
Subject: dmaengine: at_xdmac: Print debug message after realeasing the lock

From: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>

commit 5edc24ac876a928f36f407a0fcdb33b94a3a210f upstream.

It is desirable to do the prints without the lock held if possible, so
move the print after the lock is released.

Fixes: e1f7c9eee707 ("dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver")
Signed-off-by: Tudor Ambarus <tudor.ambarus@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20211215110115.191749-4-tudor.ambarus@xxxxxxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/dma/at_xdmac.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/dma/at_xdmac.c
+++ b/drivers/dma/at_xdmac.c
@@ -425,10 +425,12 @@ static dma_cookie_t at_xdmac_tx_submit(s
 	spin_lock_irqsave(&atchan->lock, irqflags);
 	cookie = dma_cookie_assign(tx);
 
-	dev_vdbg(chan2dev(tx->chan), "%s: atchan 0x%p, add desc 0x%p to xfers_list\n",
-		 __func__, atchan, desc);
 	list_add_tail(&desc->xfer_node, &atchan->xfers_list);
 	spin_unlock_irqrestore(&atchan->lock, irqflags);
+
+	dev_vdbg(chan2dev(tx->chan), "%s: atchan 0x%p, add desc 0x%p to xfers_list\n",
+		 __func__, atchan, desc);
+
 	return cookie;
 }
 


Patches currently in stable-queue which might be from tudor.ambarus@xxxxxxxxxxxxx are

queue-4.4/tty-serial-atmel-call-dma_async_issue_pending.patch
queue-4.4/dmaengine-at_xdmac-fix-lld-view-setting.patch
queue-4.4/dmaengine-at_xdmac-fix-at_xdmac_lld-struct-definition.patch
queue-4.4/dmaengine-at_xdmac-print-debug-message-after-realeasing-the-lock.patch
queue-4.4/dmaengine-at_xdmac-don-t-start-transactions-at-tx_submit-level.patch
queue-4.4/tty-serial-atmel-check-return-code-of-dmaengine_subm.patch



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