Merge tag 'v4.9.220' into 4.9-2.3.x-imx

This is the 4.9.220 stable release

Conflicts:
	arch/arm/Kconfig.debug
	arch/arm/boot/dts/imx7s.dtsi
	arch/arm/mach-imx/common.h
	arch/arm/mach-imx/cpuidle-imx6q.c
	arch/arm/mach-imx/cpuidle-imx6sx.c
	arch/arm/mach-imx/suspend-imx6.S
	block/blk-core.c
	drivers/crypto/caam/caamalg.c
	drivers/crypto/mxs-dcp.c
	drivers/dma/imx-sdma.c
	drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
	drivers/input/keyboard/imx_keypad.c
	drivers/input/keyboard/snvs_pwrkey.c
	drivers/mmc/host/sdhci.c
	drivers/net/can/flexcan.c
	drivers/net/ethernet/freescale/fec_main.c
	drivers/net/phy/phy_device.c
	drivers/net/wireless/ath/ath10k/pci.c
	drivers/tty/serial/imx.c
	drivers/usb/dwc3/gadget.c
	drivers/usb/host/xhci.c
	include/linux/blkdev.h
	include/linux/cpu.h
	include/linux/platform_data/dma-imx-sdma.h
	kernel/cpu.c
	net/wireless/util.c
	sound/soc/fsl/Kconfig
	sound/soc/fsl/fsl_esai.c
	sound/soc/fsl/fsl_sai.c
	sound/soc/fsl/imx-sgtl5000.c

1 files changed, 4 insertions, 9 deletions

diff --git a/drivers/infiniband/hw/hfi1/user_sdma.c b/drivers/infiniband/hw/hfi1/user_sdma.c
index 4c111162d552..098296aaa225 100644
--- a/drivers/infiniband/hw/hfi1/user_sdma.c
+++ b/drivers/infiniband/hw/hfi1/user_sdma.c
@@ -260,7 +260,6 @@ struct user_sdma_txreq {
 	struct list_head list;
 	struct user_sdma_request *req;
 	u16 flags;
-	unsigned busycount;
 	u64 seqnum;
 };
 
@@ -323,25 +322,22 @@ static int defer_packet_queue(
 	struct hfi1_user_sdma_pkt_q *pq =
 		container_of(wait, struct hfi1_user_sdma_pkt_q, busy);
 	struct hfi1_ibdev *dev = &pq->dd->verbs_dev;
-	struct user_sdma_txreq *tx =
-		container_of(txreq, struct user_sdma_txreq, txreq);
 
-	if (sdma_progress(sde, seq, txreq)) {
-		if (tx->busycount++ < MAX_DEFER_RETRY_COUNT)
-			goto eagain;
-	}
+	write_seqlock(&dev->iowait_lock);
+	if (sdma_progress(sde, seq, txreq))
+		goto eagain;
 	/*
 	 * We are assuming that if the list is enqueued somewhere, it
 	 * is to the dmawait list since that is the only place where
 	 * it is supposed to be enqueued.
 	 */
 	xchg(&pq->state, SDMA_PKT_Q_DEFERRED);
-	write_seqlock(&dev->iowait_lock);
 	if (list_empty(&pq->busy.list))
 		list_add_tail(&pq->busy.list, &sde->dmawait);
 	write_sequnlock(&dev->iowait_lock);
 	return -EBUSY;
 eagain:
+	write_sequnlock(&dev->iowait_lock);
 	return -EAGAIN;
 }
 
@@ -925,7 +921,6 @@ static int user_sdma_send_pkts(struct user_sdma_request *req, unsigned maxpkts)
 
 		tx->flags = 0;
 		tx->req = req;
-		tx->busycount = 0;
 		INIT_LIST_HEAD(&tx->list);
 
 		if (req->seqnum == req->info.npkts - 1)