1 files changed, 13 insertions, 21 deletions

diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 1a63200ea437..e7ace4b10f15 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -541,6 +541,7 @@ void ahci_save_initial_config(struct device *dev, struct ahci_host_priv *hpriv)
 		hpriv->saved_port_map = port_map;
 	}
 
+	/* mask_port_map not set means that all ports are available */
 	if (hpriv->mask_port_map) {
 		dev_warn(dev, "masking port_map 0x%lx -> 0x%lx\n",
 			port_map,
@@ -1280,10 +1281,8 @@ static void ahci_port_init(struct device *dev, struct ata_port *ap,
 			   int port_no, void __iomem *mmio,
 			   void __iomem *port_mmio)
 {
-	struct ahci_host_priv *hpriv = ap->host->private_data;
 	const char *emsg = NULL;
 	int rc;
-	u32 tmp;
 
 	/* make sure port is not active */
 	rc = ahci_deinit_port(ap, &emsg);
@@ -1291,11 +1290,6 @@ static void ahci_port_init(struct device *dev, struct ata_port *ap,
 		dev_warn(dev, "%s (%d)\n", emsg, rc);
 
 	ahci_port_clear_pending_irq(ap);
-
-	/* mark esata ports */
-	tmp = readl(port_mmio + PORT_CMD);
-	if ((tmp & PORT_CMD_ESP) && (hpriv->cap & HOST_CAP_SXS))
-		ap->pflags |= ATA_PFLAG_EXTERNAL;
 }
 
 void ahci_init_controller(struct ata_host *host)
@@ -2082,13 +2076,6 @@ static void ahci_qc_fill_rtf(struct ata_queued_cmd *qc)
 	struct ahci_port_priv *pp = qc->ap->private_data;
 	u8 *rx_fis = pp->rx_fis;
 
-	/*
-	 * rtf may already be filled (e.g. for successful NCQ commands).
-	 * If that is the case, we have nothing to do.
-	 */
-	if (qc->flags & ATA_QCFLAG_RTF_FILLED)
-		return;
-
 	if (pp->fbs_enabled)
 		rx_fis += qc->dev->link->pmp * AHCI_RX_FIS_SZ;
 
@@ -2102,7 +2089,6 @@ static void ahci_qc_fill_rtf(struct ata_queued_cmd *qc)
 	    !(qc->flags & ATA_QCFLAG_EH)) {
 		ata_tf_from_fis(rx_fis + RX_FIS_PIO_SETUP, &qc->result_tf);
 		qc->result_tf.status = (rx_fis + RX_FIS_PIO_SETUP)[15];
-		qc->flags |= ATA_QCFLAG_RTF_FILLED;
 		return;
 	}
 
@@ -2125,12 +2111,10 @@ static void ahci_qc_fill_rtf(struct ata_queued_cmd *qc)
 		 */
 		qc->result_tf.status = fis[2];
 		qc->result_tf.error = fis[3];
-		qc->flags |= ATA_QCFLAG_RTF_FILLED;
 		return;
 	}
 
 	ata_tf_from_fis(rx_fis + RX_FIS_D2H_REG, &qc->result_tf);
-	qc->flags |= ATA_QCFLAG_RTF_FILLED;
 }
 
 static void ahci_qc_ncq_fill_rtf(struct ata_port *ap, u64 done_mask)
@@ -2165,6 +2149,7 @@ static void ahci_qc_ncq_fill_rtf(struct ata_port *ap, u64 done_mask)
 			if (qc && ata_is_ncq(qc->tf.protocol)) {
 				qc->result_tf.status = status;
 				qc->result_tf.error = error;
+				qc->result_tf.flags = qc->tf.flags;
 				qc->flags |= ATA_QCFLAG_RTF_FILLED;
 			}
 			done_mask &= ~(1ULL << tag);
@@ -2189,6 +2174,7 @@ static void ahci_qc_ncq_fill_rtf(struct ata_port *ap, u64 done_mask)
 			fis += RX_FIS_SDB;
 			qc->result_tf.status = fis[2];
 			qc->result_tf.error = fis[3];
+			qc->result_tf.flags = qc->tf.flags;
 			qc->flags |= ATA_QCFLAG_RTF_FILLED;
 		}
 		done_mask &= ~(1ULL << tag);
@@ -2627,8 +2613,8 @@ void ahci_print_info(struct ata_host *host, const char *scc_s)
 		speed_s = "?";
 
 	dev_info(host->dev,
-		"AHCI %02x%02x.%02x%02x "
-		"%u slots %u ports %s Gbps 0x%x impl %s mode\n"
+		"AHCI vers %02x%02x.%02x%02x, "
+		"%u command slots, %s Gbps, %s mode\n"
 		,
 
 		(vers >> 24) & 0xff,
@@ -2637,12 +2623,18 @@ void ahci_print_info(struct ata_host *host, const char *scc_s)
 		vers & 0xff,
 
 		((cap >> 8) & 0x1f) + 1,
-		(cap & 0x1f) + 1,
 		speed_s,
-		impl,
 		scc_s);
 
 	dev_info(host->dev,
+		"%u/%u ports implemented (port mask 0x%x)\n"
+		,
+
+		hweight32(impl),
+		(cap & 0x1f) + 1,
+		impl);
+
+	dev_info(host->dev,
 		"flags: "
 		"%s%s%s%s%s%s%s"
 		"%s%s%s%s%s%s%s"