1 files changed, 77 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0289-staging-fsl_ppfe-eth-fix-read-write-ack-idx-issue.patch b/target/linux/layerscape/patches-5.4/701-net-0289-staging-fsl_ppfe-eth-fix-read-write-ack-idx-issue.patch
new file mode 100644
index 0000000000..4ed5b04f50
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0289-staging-fsl_ppfe-eth-fix-read-write-ack-idx-issue.patch
@@ -0,0 +1,77 @@
+From f44630f1e12462921245feb91fe94d225ba90f9c Mon Sep 17 00:00:00 2001
+From: Calvin Johnson <calvin.johnson@nxp.com>
+Date: Wed, 18 Oct 2017 18:34:41 +0530
+Subject: [PATCH] staging: fsl_ppfe/eth: fix read/write/ack idx issue
+
+While fixing checkpatch errors some of the index increments
+were commented out. They are enabled.
+
+Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
+---
+ drivers/staging/fsl_ppfe/pfe_hif.c     | 8 ++++----
+ drivers/staging/fsl_ppfe/pfe_hif_lib.c | 9 +++------
+ 2 files changed, 7 insertions(+), 10 deletions(-)
+
+--- a/drivers/staging/fsl_ppfe/pfe_hif.c
++++ b/drivers/staging/fsl_ppfe/pfe_hif.c
+@@ -511,9 +511,9 @@ static void *client_put_rxpacket(struct
+ 			 */
+ 			smp_wmb();
+ 			writel(CL_DESC_BUF_LEN(len) | flags, &desc->ctrl);
+-			/* queue->write_idx = (queue->write_idx + 1)
+-			 *		       & (queue->size - 1);
+-			 */
++			queue->write_idx = (queue->write_idx + 1)
++					    & (queue->size - 1);
++
+ 			free_pkt += pfe_pkt_headroom;
+ 		}
+ 	}
+@@ -703,7 +703,7 @@ static int client_ack_txpacket(struct pf
+ 
+ 	if (readl(&desc->ctrl) & CL_DESC_OWN) {
+ 		writel((readl(&desc->ctrl) & ~CL_DESC_OWN), &desc->ctrl);
+-		/* queue->ack_idx = (queue->ack_idx + 1) & (queue->size - 1); */
++		queue->ack_idx = (queue->ack_idx + 1) & (queue->size - 1);
+ 
+ 		return 0;
+ 
+--- a/drivers/staging/fsl_ppfe/pfe_hif_lib.c
++++ b/drivers/staging/fsl_ppfe/pfe_hif_lib.c
+@@ -211,9 +211,6 @@ err:
+ 	return 1;
+ }
+ 
+-#define inc_cl_idx(idxname)					\
+-	({ typeof(idxname) idxname_ = (idxname);		\
+-	((idxname_) = (idxname_ + 1) & (queue->size - 1)); })
+ 
+ static void hif_lib_client_cleanup_tx_queue(struct hif_client_tx_queue *queue)
+ {
+@@ -465,7 +462,7 @@ void *hif_lib_receive_pkt(struct hif_cli
+ 		smp_wmb();
+ 
+ 		desc->ctrl = CL_DESC_BUF_LEN(pfe_pkt_size) | CL_DESC_OWN;
+-		inc_cl_idx(queue->read_idx);
++		queue->read_idx = (queue->read_idx + 1) & (queue->size - 1);
+ 	}
+ 
+ 	/*spin_unlock_irqrestore(&client->rx_lock, flags); */
+@@ -507,7 +504,7 @@ void __hif_lib_xmit_pkt(struct hif_clien
+ 
+ 	__hif_xmit_pkt(&pfe->hif, client->id, qno, data, len, flags);
+ 
+-	inc_cl_idx(queue->write_idx);
++	queue->write_idx = (queue->write_idx + 1) & (queue->size - 1);
+ 	queue->tx_pending++;
+ 	queue->jiffies_last_packet = jiffies;
+ }
+@@ -544,7 +541,7 @@ void *hif_lib_tx_get_next_complete(struc
+ 	if (desc->ctrl & CL_DESC_OWN)
+ 		return NULL;
+ 
+-	inc_cl_idx(queue->read_idx);
++	queue->read_idx = (queue->read_idx + 1) & (queue->size - 1);
+ 	queue->tx_pending--;
+ 
+ 	*flags = CL_DESC_GET_FLAGS(desc->ctrl);