Merge commit 'v2.6.30-rc5' into sched/core

Merge reason: sched/core was on .30-rc1 before, update to latest fixes

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 21 insertions, 8 deletions

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index e7ea77cf606..17c5d48a75d 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1231,6 +1231,9 @@ unsigned int ata_dev_classify(const struct ata_taskfile *tf)
 	 *
 	 * We follow the current spec and consider that 0x69/0x96
 	 * identifies a port multiplier and 0x3c/0xc3 a SEMB device.
+	 * Unfortunately, WDC WD1600JS-62MHB5 (a hard drive) reports
+	 * SEMB signature.  This is worked around in
+	 * ata_dev_read_id().
 	 */
 	if ((tf->lbam == 0) && (tf->lbah == 0)) {
 		DPRINTK("found ATA device by sig\n");
@@ -1248,8 +1251,8 @@ unsigned int ata_dev_classify(const struct ata_taskfile *tf)
 	}
 
 	if ((tf->lbam == 0x3c) && (tf->lbah == 0xc3)) {
-		printk(KERN_INFO "ata: SEMB device ignored\n");
-		return ATA_DEV_SEMB_UNSUP; /* not yet */
+		DPRINTK("found SEMB device by sig (could be ATA device)\n");
+		return ATA_DEV_SEMB;
 	}
 
 	DPRINTK("unknown device\n");
@@ -1653,8 +1656,8 @@ unsigned long ata_id_xfermask(const u16 *id)
 		/*
 		 *	Process compact flash extended modes
 		 */
-		int pio = id[163] & 0x7;
-		int dma = (id[163] >> 3) & 7;
+		int pio = (id[ATA_ID_CFA_MODES] >> 0) & 0x7;
+		int dma = (id[ATA_ID_CFA_MODES] >> 3) & 0x7;
 
 		if (pio)
 			pio_mask |= (1 << 5);
@@ -2080,6 +2083,7 @@ int ata_dev_read_id(struct ata_device *dev, unsigned int *p_class,
 	struct ata_taskfile tf;
 	unsigned int err_mask = 0;
 	const char *reason;
+	bool is_semb = class == ATA_DEV_SEMB;
 	int may_fallback = 1, tried_spinup = 0;
 	int rc;
 
@@ -2090,6 +2094,8 @@ retry:
 	ata_tf_init(dev, &tf);
 
 	switch (class) {
+	case ATA_DEV_SEMB:
+		class = ATA_DEV_ATA;	/* some hard drives report SEMB sig */
 	case ATA_DEV_ATA:
 		tf.command = ATA_CMD_ID_ATA;
 		break;
@@ -2126,6 +2132,14 @@ retry:
 			return -ENOENT;
 		}
 
+		if (is_semb) {
+			ata_dev_printk(dev, KERN_INFO, "IDENTIFY failed on "
+				       "device w/ SEMB sig, disabled\n");
+			/* SEMB is not supported yet */
+			*p_class = ATA_DEV_SEMB_UNSUP;
+			return 0;
+		}
+
 		if ((err_mask == AC_ERR_DEV) && (tf.feature & ATA_ABORTED)) {
 			/* Device or controller might have reported
 			 * the wrong device class.  Give a shot at the
@@ -2412,7 +2426,8 @@ int ata_dev_configure(struct ata_device *dev)
 	/* ATA-specific feature tests */
 	if (dev->class == ATA_DEV_ATA) {
 		if (ata_id_is_cfa(id)) {
-			if (id[162] & 1) /* CPRM may make this media unusable */
+			/* CPRM may make this media unusable */
+			if (id[ATA_ID_CFA_KEY_MGMT] & 1)
 				ata_dev_printk(dev, KERN_WARNING,
 					       "supports DRM functions and may "
 					       "not be fully accessable.\n");
@@ -6110,13 +6125,11 @@ int ata_host_register(struct ata_host *host, struct scsi_host_template *sht)
 			ata_port_printk(ap, KERN_INFO, "DUMMY\n");
 	}
 
-	/* perform each probe synchronously */
-	DPRINTK("probe begin\n");
+	/* perform each probe asynchronously */
 	for (i = 0; i < host->n_ports; i++) {
 		struct ata_port *ap = host->ports[i];
 		async_schedule(async_port_probe, ap);
 	}
-	DPRINTK("probe end\n");
 
 	return 0;
 }