drivers: net: xgene: Fix redundant prefetch buffer cleanup

Prefetch buffer cleanup code was called twice, causing EDAC to
report errors during reboot.

[ 1130.972475] xgene-edac 78800000.edac: IOB bridge agent (BA) transaction
error
[ 1130.979584] xgene-edac 78800000.edac: IOB BA write response error
[ 1130.985648] xgene-edac 78800000.edac: IOB BA write access at 0x00.00000000
()
[ 1130.993612] xgene-edac 78800000.edac: IOB BA requestor ID 0x00002400
[ 1131.000242] xgene-edac 78800000.edac: IOB bridge agent (BA) transaction
error
...

This patch fixes the errors by,

- removing the redundant prefetch buffer cleanup from port_ops->shutdown()
- moving port_ops->shutdown() after delete_rings()

Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 21 deletions

diff --git a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
index 3235d0cf3942..6ac27c7522a7 100644
--- a/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
+++ b/drivers/net/ethernet/apm/xgene/xgene_enet_hw.c
@@ -763,27 +763,6 @@ static void xgene_enet_clear(struct xgene_enet_pdata *pdata,
 static void xgene_gport_shutdown(struct xgene_enet_pdata *pdata)
 {
 	struct device *dev = &pdata->pdev->dev;
-	struct xgene_enet_desc_ring *ring;
-	u32 pb;
-	int i;
-
-	pb = 0;
-	for (i = 0; i < pdata->rxq_cnt; i++) {
-		ring = pdata->rx_ring[i]->buf_pool;
-		pb |= BIT(xgene_enet_get_fpsel(ring->id));
-		ring = pdata->rx_ring[i]->page_pool;
-		if (ring)
-			pb |= BIT(xgene_enet_get_fpsel(ring->id));
-
-	}
-	xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIFPRESET_ADDR, pb);
-
-	pb = 0;
-	for (i = 0; i < pdata->txq_cnt; i++) {
-		ring = pdata->tx_ring[i];
-		pb |= BIT(xgene_enet_ring_bufnum(ring->id));
-	}
-	xgene_enet_wr_ring_if(pdata, ENET_CFGSSQMIWQRESET_ADDR, pb);
 
 	if (dev->of_node) {
 		if (!IS_ERR(pdata->clk))