1 files changed, 14 insertions, 210 deletions

diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index 3bfd9da58473..474c6c34fe02 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2,10 +2,6 @@
 /*
  *  libata-eh.c - libata error handling
  *
- *  Maintained by:  Tejun Heo <tj@kernel.org>
- *    		    Please ALWAYS copy linux-ide@vger.kernel.org
- *		    on emails.
- *
  *  Copyright 2006 Tejun Heo <htejun@gmail.com>
  *
  *  libata documentation is available via 'make {ps|pdf}docs',
@@ -184,6 +180,7 @@ void __ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...)
 	__ata_ehi_pushv_desc(ehi, fmt, args);
 	va_end(args);
 }
+EXPORT_SYMBOL_GPL(__ata_ehi_push_desc);
 
 /**
  *	ata_ehi_push_desc - push error description with separator
@@ -207,6 +204,7 @@ void ata_ehi_push_desc(struct ata_eh_info *ehi, const char *fmt, ...)
 	__ata_ehi_pushv_desc(ehi, fmt, args);
 	va_end(args);
 }
+EXPORT_SYMBOL_GPL(ata_ehi_push_desc);
 
 /**
  *	ata_ehi_clear_desc - clean error description
@@ -222,6 +220,7 @@ void ata_ehi_clear_desc(struct ata_eh_info *ehi)
 	ehi->desc[0] = '\0';
 	ehi->desc_len = 0;
 }
+EXPORT_SYMBOL_GPL(ata_ehi_clear_desc);
 
 /**
  *	ata_port_desc - append port description
@@ -249,9 +248,9 @@ void ata_port_desc(struct ata_port *ap, const char *fmt, ...)
 	__ata_ehi_pushv_desc(&ap->link.eh_info, fmt, args);
 	va_end(args);
 }
+EXPORT_SYMBOL_GPL(ata_port_desc);
 
 #ifdef CONFIG_PCI
-
 /**
  *	ata_port_pbar_desc - append PCI BAR description
  *	@ap: target ATA port
@@ -288,7 +287,7 @@ void ata_port_pbar_desc(struct ata_port *ap, int bar, ssize_t offset,
 		ata_port_desc(ap, "%s 0x%llx", name,
 				start + (unsigned long long)offset);
 }
-
+EXPORT_SYMBOL_GPL(ata_port_pbar_desc);
 #endif /* CONFIG_PCI */
 
 static int ata_lookup_timeout_table(u8 cmd)
@@ -973,6 +972,7 @@ void ata_port_schedule_eh(struct ata_port *ap)
 	/* see: ata_std_sched_eh, unless you know better */
 	ap->ops->sched_eh(ap);
 }
+EXPORT_SYMBOL_GPL(ata_port_schedule_eh);
 
 static int ata_do_link_abort(struct ata_port *ap, struct ata_link *link)
 {
@@ -1015,6 +1015,7 @@ int ata_link_abort(struct ata_link *link)
 {
 	return ata_do_link_abort(link->ap, link);
 }
+EXPORT_SYMBOL_GPL(ata_link_abort);
 
 /**
  *	ata_port_abort - abort all qc's on the port
@@ -1032,6 +1033,7 @@ int ata_port_abort(struct ata_port *ap)
 {
 	return ata_do_link_abort(ap, NULL);
 }
+EXPORT_SYMBOL_GPL(ata_port_abort);
 
 /**
  *	__ata_port_freeze - freeze port
@@ -1088,79 +1090,7 @@ int ata_port_freeze(struct ata_port *ap)
 
 	return nr_aborted;
 }
-
-/**
- *	sata_async_notification - SATA async notification handler
- *	@ap: ATA port where async notification is received
- *
- *	Handler to be called when async notification via SDB FIS is
- *	received.  This function schedules EH if necessary.
- *
- *	LOCKING:
- *	spin_lock_irqsave(host lock)
- *
- *	RETURNS:
- *	1 if EH is scheduled, 0 otherwise.
- */
-int sata_async_notification(struct ata_port *ap)
-{
-	u32 sntf;
-	int rc;
-
-	if (!(ap->flags & ATA_FLAG_AN))
-		return 0;
-
-	rc = sata_scr_read(&ap->link, SCR_NOTIFICATION, &sntf);
-	if (rc == 0)
-		sata_scr_write(&ap->link, SCR_NOTIFICATION, sntf);
-
-	if (!sata_pmp_attached(ap) || rc) {
-		/* PMP is not attached or SNTF is not available */
-		if (!sata_pmp_attached(ap)) {
-			/* PMP is not attached.  Check whether ATAPI
-			 * AN is configured.  If so, notify media
-			 * change.
-			 */
-			struct ata_device *dev = ap->link.device;
-
-			if ((dev->class == ATA_DEV_ATAPI) &&
-			    (dev->flags & ATA_DFLAG_AN))
-				ata_scsi_media_change_notify(dev);
-			return 0;
-		} else {
-			/* PMP is attached but SNTF is not available.
-			 * ATAPI async media change notification is
-			 * not used.  The PMP must be reporting PHY
-			 * status change, schedule EH.
-			 */
-			ata_port_schedule_eh(ap);
-			return 1;
-		}
-	} else {
-		/* PMP is attached and SNTF is available */
-		struct ata_link *link;
-
-		/* check and notify ATAPI AN */
-		ata_for_each_link(link, ap, EDGE) {
-			if (!(sntf & (1 << link->pmp)))
-				continue;
-
-			if ((link->device->class == ATA_DEV_ATAPI) &&
-			    (link->device->flags & ATA_DFLAG_AN))
-				ata_scsi_media_change_notify(link->device);
-		}
-
-		/* If PMP is reporting that PHY status of some
-		 * downstream ports has changed, schedule EH.
-		 */
-		if (sntf & (1 << SATA_PMP_CTRL_PORT)) {
-			ata_port_schedule_eh(ap);
-			return 1;
-		}
-
-		return 0;
-	}
-}
+EXPORT_SYMBOL_GPL(ata_port_freeze);
 
 /**
  *	ata_eh_freeze_port - EH helper to freeze port
@@ -1182,6 +1112,7 @@ void ata_eh_freeze_port(struct ata_port *ap)
 	__ata_port_freeze(ap);
 	spin_unlock_irqrestore(ap->lock, flags);
 }
+EXPORT_SYMBOL_GPL(ata_eh_freeze_port);
 
 /**
  *	ata_port_thaw_port - EH helper to thaw port
@@ -1289,6 +1220,7 @@ void ata_dev_disable(struct ata_device *dev)
 	 */
 	ata_ering_clear(&dev->ering);
 }
+EXPORT_SYMBOL_GPL(ata_dev_disable);
 
 /**
  *	ata_eh_detach_dev - detach ATA device
@@ -1420,62 +1352,6 @@ static const char *ata_err_string(unsigned int err_mask)
 }
 
 /**
- *	ata_eh_read_log_10h - Read log page 10h for NCQ error details
- *	@dev: Device to read log page 10h from
- *	@tag: Resulting tag of the failed command
- *	@tf: Resulting taskfile registers of the failed command
- *
- *	Read log page 10h to obtain NCQ error details and clear error
- *	condition.
- *
- *	LOCKING:
- *	Kernel thread context (may sleep).
- *
- *	RETURNS:
- *	0 on success, -errno otherwise.
- */
-static int ata_eh_read_log_10h(struct ata_device *dev,
-			       int *tag, struct ata_taskfile *tf)
-{
-	u8 *buf = dev->link->ap->sector_buf;
-	unsigned int err_mask;
-	u8 csum;
-	int i;
-
-	err_mask = ata_read_log_page(dev, ATA_LOG_SATA_NCQ, 0, buf, 1);
-	if (err_mask)
-		return -EIO;
-
-	csum = 0;
-	for (i = 0; i < ATA_SECT_SIZE; i++)
-		csum += buf[i];
-	if (csum)
-		ata_dev_warn(dev, "invalid checksum 0x%x on log page 10h\n",
-			     csum);
-
-	if (buf[0] & 0x80)
-		return -ENOENT;
-
-	*tag = buf[0] & 0x1f;
-
-	tf->command = buf[2];
-	tf->feature = buf[3];
-	tf->lbal = buf[4];
-	tf->lbam = buf[5];
-	tf->lbah = buf[6];
-	tf->device = buf[7];
-	tf->hob_lbal = buf[8];
-	tf->hob_lbam = buf[9];
-	tf->hob_lbah = buf[10];
-	tf->nsect = buf[12];
-	tf->hob_nsect = buf[13];
-	if (dev->class == ATA_DEV_ZAC && ata_id_has_ncq_autosense(dev->id))
-		tf->auxiliary = buf[14] << 16 | buf[15] << 8 | buf[16];
-
-	return 0;
-}
-
-/**
  *	atapi_eh_tur - perform ATAPI TEST_UNIT_READY
  *	@dev: target ATAPI device
  *	@r_sense_key: out parameter for sense_key
@@ -1659,80 +1535,6 @@ static void ata_eh_analyze_serror(struct ata_link *link)
 }
 
 /**
- *	ata_eh_analyze_ncq_error - analyze NCQ error
- *	@link: ATA link to analyze NCQ error for
- *
- *	Read log page 10h, determine the offending qc and acquire
- *	error status TF.  For NCQ device errors, all LLDDs have to do
- *	is setting AC_ERR_DEV in ehi->err_mask.  This function takes
- *	care of the rest.
- *
- *	LOCKING:
- *	Kernel thread context (may sleep).
- */
-void ata_eh_analyze_ncq_error(struct ata_link *link)
-{
-	struct ata_port *ap = link->ap;
-	struct ata_eh_context *ehc = &link->eh_context;
-	struct ata_device *dev = link->device;
-	struct ata_queued_cmd *qc;
-	struct ata_taskfile tf;
-	int tag, rc;
-
-	/* if frozen, we can't do much */
-	if (ap->pflags & ATA_PFLAG_FROZEN)
-		return;
-
-	/* is it NCQ device error? */
-	if (!link->sactive || !(ehc->i.err_mask & AC_ERR_DEV))
-		return;
-
-	/* has LLDD analyzed already? */
-	ata_qc_for_each_raw(ap, qc, tag) {
-		if (!(qc->flags & ATA_QCFLAG_FAILED))
-			continue;
-
-		if (qc->err_mask)
-			return;
-	}
-
-	/* okay, this error is ours */
-	memset(&tf, 0, sizeof(tf));
-	rc = ata_eh_read_log_10h(dev, &tag, &tf);
-	if (rc) {
-		ata_link_err(link, "failed to read log page 10h (errno=%d)\n",
-			     rc);
-		return;
-	}
-
-	if (!(link->sactive & (1 << tag))) {
-		ata_link_err(link, "log page 10h reported inactive tag %d\n",
-			     tag);
-		return;
-	}
-
-	/* we've got the perpetrator, condemn it */
-	qc = __ata_qc_from_tag(ap, tag);
-	memcpy(&qc->result_tf, &tf, sizeof(tf));
-	qc->result_tf.flags = ATA_TFLAG_ISADDR | ATA_TFLAG_LBA | ATA_TFLAG_LBA48;
-	qc->err_mask |= AC_ERR_DEV | AC_ERR_NCQ;
-	if (dev->class == ATA_DEV_ZAC &&
-	    ((qc->result_tf.command & ATA_SENSE) || qc->result_tf.auxiliary)) {
-		char sense_key, asc, ascq;
-
-		sense_key = (qc->result_tf.auxiliary >> 16) & 0xff;
-		asc = (qc->result_tf.auxiliary >> 8) & 0xff;
-		ascq = qc->result_tf.auxiliary & 0xff;
-		ata_scsi_set_sense(dev, qc->scsicmd, sense_key, asc, ascq);
-		ata_scsi_set_sense_information(dev, qc->scsicmd,
-					       &qc->result_tf);
-		qc->flags |= ATA_QCFLAG_SENSE_VALID;
-	}
-
-	ehc->i.err_mask &= ~AC_ERR_DEV;
-}
-
-/**
  *	ata_eh_analyze_tf - analyze taskfile of a failed qc
  *	@qc: qc to analyze
  *	@tf: Taskfile registers to analyze
@@ -3436,7 +3238,8 @@ static int ata_eh_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
 	int rc;
 
 	/* if the link or host doesn't do LPM, noop */
-	if ((link->flags & ATA_LFLAG_NO_LPM) || (ap && !ap->ops->set_lpm))
+	if (!IS_ENABLED(CONFIG_SATA_HOST) ||
+	    (link->flags & ATA_LFLAG_NO_LPM) || (ap && !ap->ops->set_lpm))
 		return 0;
 
 	/*
@@ -4052,6 +3855,7 @@ void ata_std_error_handler(struct ata_port *ap)
 
 	ata_do_eh(ap, ops->prereset, ops->softreset, hardreset, ops->postreset);
 }
+EXPORT_SYMBOL_GPL(ata_std_error_handler);
 
 #ifdef CONFIG_PM
 /**