Patch "usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer" has been added to the 4.4-stable tree

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

usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer

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:
usb-renesas_usbhs-disable-tx-irq-before-starting-tx-dmac-transfer.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 <[email protected]> know about it.

From: Yoshihiro Shimoda <[email protected]>
Date: Thu, 10 Mar 2016 11:30:15 +0900
Subject: usb: renesas_usbhs: disable TX IRQ before starting TX DMAC transfer

From: Yoshihiro Shimoda <[email protected]>

commit 6490865c67825277b29638e839850882600b48ec upstream.

This patch adds a code to surely disable TX IRQ of the pipe before starting TX DMAC transfer. Otherwise, a lot of unnecessary TX IRQs may happen in rare cases when DMAC is used.

---
 drivers/usb/renesas_usbhs/fifo.c |    1 +
 1 file changed, 1 insertion(+)

@@ -890,6 +890,7 @@ static int usbhsf_dma_prepare_push(struc
 
 	pkt->trans = len;
 
+	usbhsf_tx_irq_ctrl(pipe, 0);
 	INIT_WORK(&pkt->work, xfer_work);
 	schedule_work(&pkt->work);
 

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/usb-renesas_usbhs-fix-to-avoid-using-a-disabled-ep-in-usbhsg_queue_done.patch queue-4.4/usb-renesas_usbhs-avoid-null-pointer-derefernce-in-usbhsf_pkt_handler.patch queue-4.4/usb-renesas_usbhs-disable-tx-irq-before-starting-tx-dmac-transfer.patch