Merge branch 'linus' into oprofile-v2

Conflicts:
	arch/x86/kernel/apic_32.c
	arch/x86/oprofile/nmi_int.c
	include/linux/pci_ids.h

1 files changed, 30 insertions, 13 deletions

diff --git a/drivers/ata/sata_nv.c b/drivers/ata/sata_nv.c
index 858f70610ed..fae3841de0d 100644
--- a/drivers/ata/sata_nv.c
+++ b/drivers/ata/sata_nv.c
@@ -302,8 +302,8 @@ static void nv_ck804_host_stop(struct ata_host *host);
 static irqreturn_t nv_generic_interrupt(int irq, void *dev_instance);
 static irqreturn_t nv_nf2_interrupt(int irq, void *dev_instance);
 static irqreturn_t nv_ck804_interrupt(int irq, void *dev_instance);
-static int nv_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val);
-static int nv_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val);
+static int nv_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
+static int nv_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
 
 static void nv_nf2_freeze(struct ata_port *ap);
 static void nv_nf2_thaw(struct ata_port *ap);
@@ -405,28 +405,45 @@ static struct scsi_host_template nv_swncq_sht = {
 	.slave_configure	= nv_swncq_slave_config,
 };
 
-static struct ata_port_operations nv_generic_ops = {
+/* OSDL bz3352 reports that some nv controllers can't determine device
+ * signature reliably and nv_hardreset is implemented to work around
+ * the problem.  This was reported on nf3 and it's unclear whether any
+ * other controllers are affected.  However, the workaround has been
+ * applied to all variants and there isn't much to gain by trying to
+ * find out exactly which ones are affected at this point especially
+ * because NV has moved over to ahci for newer controllers.
+ */
+static struct ata_port_operations nv_common_ops = {
 	.inherits		= &ata_bmdma_port_ops,
 	.hardreset		= nv_hardreset,
 	.scr_read		= nv_scr_read,
 	.scr_write		= nv_scr_write,
 };
 
+/* OSDL bz11195 reports that link doesn't come online after hardreset
+ * on generic nv's and there have been several other similar reports
+ * on linux-ide.  Disable hardreset for generic nv's.
+ */
+static struct ata_port_operations nv_generic_ops = {
+	.inherits		= &nv_common_ops,
+	.hardreset		= ATA_OP_NULL,
+};
+
 static struct ata_port_operations nv_nf2_ops = {
-	.inherits		= &nv_generic_ops,
+	.inherits		= &nv_common_ops,
 	.freeze			= nv_nf2_freeze,
 	.thaw			= nv_nf2_thaw,
 };
 
 static struct ata_port_operations nv_ck804_ops = {
-	.inherits		= &nv_generic_ops,
+	.inherits		= &nv_common_ops,
 	.freeze			= nv_ck804_freeze,
 	.thaw			= nv_ck804_thaw,
 	.host_stop		= nv_ck804_host_stop,
 };
 
 static struct ata_port_operations nv_adma_ops = {
-	.inherits		= &nv_generic_ops,
+	.inherits		= &nv_common_ops,
 
 	.check_atapi_dma	= nv_adma_check_atapi_dma,
 	.sff_tf_read		= nv_adma_tf_read,
@@ -450,7 +467,7 @@ static struct ata_port_operations nv_adma_ops = {
 };
 
 static struct ata_port_operations nv_swncq_ops = {
-	.inherits		= &nv_generic_ops,
+	.inherits		= &nv_common_ops,
 
 	.qc_defer		= ata_std_qc_defer,
 	.qc_prep		= nv_swncq_qc_prep,
@@ -1494,21 +1511,21 @@ static irqreturn_t nv_ck804_interrupt(int irq, void *dev_instance)
 	return ret;
 }
 
-static int nv_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val)
+static int nv_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val)
 {
 	if (sc_reg > SCR_CONTROL)
 		return -EINVAL;
 
-	*val = ioread32(ap->ioaddr.scr_addr + (sc_reg * 4));
+	*val = ioread32(link->ap->ioaddr.scr_addr + (sc_reg * 4));
 	return 0;
 }
 
-static int nv_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val)
+static int nv_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val)
 {
 	if (sc_reg > SCR_CONTROL)
 		return -EINVAL;
 
-	iowrite32(val, ap->ioaddr.scr_addr + (sc_reg * 4));
+	iowrite32(val, link->ap->ioaddr.scr_addr + (sc_reg * 4));
 	return 0;
 }
 
@@ -2201,9 +2218,9 @@ static void nv_swncq_host_interrupt(struct ata_port *ap, u16 fis)
 	if (!pp->qc_active)
 		return;
 
-	if (ap->ops->scr_read(ap, SCR_ERROR, &serror))
+	if (ap->ops->scr_read(&ap->link, SCR_ERROR, &serror))
 		return;
-	ap->ops->scr_write(ap, SCR_ERROR, serror);
+	ap->ops->scr_write(&ap->link, SCR_ERROR, serror);
 
 	if (ata_stat & ATA_ERR) {
 		ata_ehi_clear_desc(ehi);