---

yaml
---
r: 88219
b: refs/heads/master
c: 44cad26
h: refs/heads/master
i:
  88217: 054095b
  88215: f202a7c
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 5a55261716e838f188598ab3d7a0abf9cf1338f8
+refs/heads/master: 44cad261025c04327fd7e847a7088fd3031b0c3e

trunk/Documentation/spi/spi-summary

@@ -116,6 +116,13 @@ low order bit.  So when a chip's timing diagram shows the clock
 starting low (CPOL=0) and data stabilized for sampling during the
 trailing clock edge (CPHA=1), that's SPI mode 1.
 
+Note that the clock mode is relevant as soon as the chipselect goes
+active.  So the master must set the clock to inactive before selecting
+a slave, and the slave can tell the chosen polarity by sampling the
+clock level when its select line goes active.  That's why many devices
+support for example both modes 0 and 3:  they don't care about polarity,
+and alway clock data in/out on rising clock edges.
+
 
 How do these driver programming interfaces work?
 ------------------------------------------------
@@ -379,8 +386,14 @@ any more such messages.
       + when bidirectional reads and writes start ... by how its
         sequence of spi_transfer requests is arranged;
 
+      + which I/O buffers are used ... each spi_transfer wraps a
+        buffer for each transfer direction, supporting full duplex
+        (two pointers, maybe the same one in both cases) and half
+        duplex (one pointer is NULL) transfers;
+
       + optionally defining short delays after transfers ... using
-        the spi_transfer.delay_usecs setting;
+        the spi_transfer.delay_usecs setting (this delay can be the
+        only protocol effect, if the buffer length is zero);
 
       + whether the chipselect becomes inactive after a transfer and
         any delay ... by using the spi_transfer.cs_change flag;

trunk/drivers/acpi/processor_core.c

@@ -822,7 +822,7 @@ static int acpi_processor_remove(struct acpi_device *device, int type)
 	}
 
 	processors[pr->id] = NULL;
-
+	processor_device_array[pr->id] = NULL;
 	kfree(pr);
 
 	return 0;

trunk/drivers/acpi/thermal.c

@@ -1125,7 +1125,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz)
 			tz->trips.active[i].flags.valid; i++, trips++);
 	tz->thermal_zone = thermal_zone_device_register("ACPI thermal zone",
 					trips, tz, &acpi_thermal_zone_ops);
-	if (!tz->thermal_zone)
+	if (IS_ERR(tz->thermal_zone))
 		return -ENODEV;
 
 	result = sysfs_create_link(&tz->device->dev.kobj,

trunk/drivers/ata/pata_sil680.c

@@ -270,7 +270,7 @@ static u8 sil680_init_chip(struct pci_dev *pdev, int *try_mmio)
 		tmpbyte & 1, tmpbyte & 0x30);
 
 	*try_mmio = 0;
-#ifdef CONFIG_PPC
+#ifdef CONFIG_PPC_MERGE
 	if (machine_is(cell))
 		*try_mmio = (tmpbyte & 1) || pci_resource_start(pdev, 5);
 #endif

trunk/drivers/ata/sata_fsl.c

@@ -1256,7 +1256,6 @@ static int sata_fsl_probe(struct of_device *ofdev,
 	void __iomem *ssr_base = NULL;
 	void __iomem *csr_base = NULL;
 	struct sata_fsl_host_priv *host_priv = NULL;
-	struct resource *r;
 	int irq;
 	struct ata_host *host;
 
@@ -1266,8 +1265,6 @@ static int sata_fsl_probe(struct of_device *ofdev,
 	dev_printk(KERN_INFO, &ofdev->dev,
 		   "Sata FSL Platform/CSB Driver init\n");
 
-	r = kmalloc(sizeof(struct resource), GFP_KERNEL);
-
 	hcr_base = of_iomap(ofdev->node, 0);
 	if (!hcr_base)
 		goto error_exit_with_cleanup;

trunk/drivers/block/ub.c

@@ -8,6 +8,7 @@
  * and is not licensed separately. See file COPYING for details.
  *
  * TODO (sorted by decreasing priority)
+ *  -- Return sense now that rq allows it (we always auto-sense anyway).
  *  -- set readonly flag for CDs, set removable flag for CF readers
  *  -- do inquiry and verify we got a disk and not a tape (for LUN mismatch)
  *  -- verify the 13 conditions and do bulk resets
@@ -359,7 +360,8 @@ static void ub_cmd_build_block(struct ub_dev *sc, struct ub_lun *lun,
 static void ub_cmd_build_packet(struct ub_dev *sc, struct ub_lun *lun,
     struct ub_scsi_cmd *cmd, struct ub_request *urq);
 static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd);
-static void ub_end_rq(struct request *rq, unsigned int status);
+static void ub_end_rq(struct request *rq, unsigned int status,
+    unsigned int cmd_len);
 static int ub_rw_cmd_retry(struct ub_dev *sc, struct ub_lun *lun,
     struct ub_request *urq, struct ub_scsi_cmd *cmd);
 static int ub_submit_scsi(struct ub_dev *sc, struct ub_scsi_cmd *cmd);
@@ -642,13 +644,13 @@ static int ub_request_fn_1(struct ub_lun *lun, struct request *rq)
 
 	if (atomic_read(&sc->poison)) {
 		blkdev_dequeue_request(rq);
-		ub_end_rq(rq, DID_NO_CONNECT << 16);
+		ub_end_rq(rq, DID_NO_CONNECT << 16, blk_rq_bytes(rq));
 		return 0;
 	}
 
 	if (lun->changed && !blk_pc_request(rq)) {
 		blkdev_dequeue_request(rq);
-		ub_end_rq(rq, SAM_STAT_CHECK_CONDITION);
+		ub_end_rq(rq, SAM_STAT_CHECK_CONDITION, blk_rq_bytes(rq));
 		return 0;
 	}
 
@@ -701,7 +703,7 @@ static int ub_request_fn_1(struct ub_lun *lun, struct request *rq)
 
 drop:
 	ub_put_cmd(lun, cmd);
-	ub_end_rq(rq, DID_ERROR << 16);
+	ub_end_rq(rq, DID_ERROR << 16, blk_rq_bytes(rq));
 	return 0;
 }
 
@@ -770,6 +772,7 @@ static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 	struct ub_request *urq = cmd->back;
 	struct request *rq;
 	unsigned int scsi_status;
+	unsigned int cmd_len;
 
 	rq = urq->rq;
 
@@ -779,8 +782,18 @@ static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 				rq->data_len = 0;
 			else
 				rq->data_len -= cmd->act_len;
+			scsi_status = 0;
+		} else {
+			if (cmd->act_len != cmd->len) {
+				if ((cmd->key == MEDIUM_ERROR ||
+				     cmd->key == UNIT_ATTENTION) &&
+				    ub_rw_cmd_retry(sc, lun, urq, cmd) == 0)
+					return;
+				scsi_status = SAM_STAT_CHECK_CONDITION;
+			} else {
+				scsi_status = 0;
+			}
 		}
-		scsi_status = 0;
 	} else {
 		if (blk_pc_request(rq)) {
 			/* UB_SENSE_SIZE is smaller than SCSI_SENSE_BUFFERSIZE */
@@ -801,23 +814,30 @@ static void ub_rw_cmd_done(struct ub_dev *sc, struct ub_scsi_cmd *cmd)
 
 	urq->rq = NULL;
 
+	cmd_len = cmd->len;
 	ub_put_cmd(lun, cmd);
-	ub_end_rq(rq, scsi_status);
+	ub_end_rq(rq, scsi_status, cmd_len);
 	blk_start_queue(lun->disk->queue);
 }
 
-static void ub_end_rq(struct request *rq, unsigned int scsi_status)
+static void ub_end_rq(struct request *rq, unsigned int scsi_status,
+    unsigned int cmd_len)
 {
 	int error;
+	long rqlen;
 
 	if (scsi_status == 0) {
 		error = 0;
 	} else {
 		error = -EIO;
 		rq->errors = scsi_status;
 	}
-	if (__blk_end_request(rq, error, blk_rq_bytes(rq)))
-		BUG();
+	rqlen = blk_rq_bytes(rq);    /* Oddly enough, this is the residue. */
+	if (__blk_end_request(rq, error, cmd_len)) {
+		printk(KERN_WARNING DRV_NAME
+		    ": __blk_end_request blew, %s-cmd total %u rqlen %ld\n",
+		    blk_pc_request(rq)? "pc": "fs", cmd_len, rqlen);
+	}
 }
 
 static int ub_rw_cmd_retry(struct ub_dev *sc, struct ub_lun *lun,

trunk/drivers/mtd/chips/cfi_cmdset_0002.c

@@ -1763,6 +1763,7 @@ static void cfi_amdstd_sync (struct mtd_info *mtd)
 
 		default:
 			/* Not an idle state */
+			set_current_state(TASK_UNINTERRUPTIBLE);
 			add_wait_queue(&chip->wq, &wait);
 
 			spin_unlock(chip->mutex);

trunk/drivers/mtd/chips/cfi_cmdset_0020.c

@@ -1015,6 +1015,7 @@ static void cfi_staa_sync (struct mtd_info *mtd)
 
 		default:
 			/* Not an idle state */
+			set_current_state(TASK_UNINTERRUPTIBLE);
 			add_wait_queue(&chip->wq, &wait);
 
 			spin_unlock_bh(chip->mutex);

trunk/drivers/spi/spi_bfin5xx.c

@@ -713,8 +713,8 @@ static void pump_transfers(unsigned long data)
 	} else {
 		drv_data->len = transfer->len;
 	}
-	dev_dbg(&drv_data->pdev->dev, "transfer: ",
-		"drv_data->write is %p, chip->write is %p, null_wr is %p\n",
+	dev_dbg(&drv_data->pdev->dev,
+		"transfer: drv_data->write is %p, chip->write is %p, null_wr is %p\n",
 		drv_data->write, chip->write, null_writer);
 
 	/* speed and width has been set on per message */
@@ -1294,6 +1294,12 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev)
 		goto out_error_queue_alloc;
 	}
 
+	status = peripheral_request_list(drv_data->pin_req, DRV_NAME);
+	if (status != 0) {
+		dev_err(&pdev->dev, ": Requesting Peripherals failed\n");
+		goto out_error_queue_alloc;
+	}
+
 	/* Register with the SPI framework */
 	platform_set_drvdata(pdev, drv_data);
 	status = spi_register_master(master);
@@ -1302,12 +1308,6 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev)
 		goto out_error_queue_alloc;
 	}
 
-	status = peripheral_request_list(drv_data->pin_req, DRV_NAME);
-	if (status != 0) {
-		dev_err(&pdev->dev, ": Requesting Peripherals failed\n");
-		goto out_error;
-	}
-
 	dev_info(dev, "%s, Version %s, regs_base@%p, dma channel@%d\n",
 		DRV_DESC, DRV_VERSION, drv_data->regs_base,
 		drv_data->dma_channel);
@@ -1319,7 +1319,6 @@ static int __init bfin5xx_spi_probe(struct platform_device *pdev)
 	iounmap((void *) drv_data->regs_base);
 out_error_ioremap:
 out_error_get_res:
-out_error:
 	spi_master_put(master);
 
 	return status;

trunk/fs/nfs/file.c

@@ -64,7 +64,11 @@ const struct file_operations nfs_file_operations = {
 	.write		= do_sync_write,
 	.aio_read	= nfs_file_read,
 	.aio_write	= nfs_file_write,
+#ifdef CONFIG_MMU
 	.mmap		= nfs_file_mmap,
+#else
+	.mmap		= generic_file_mmap,
+#endif
 	.open		= nfs_file_open,
 	.flush		= nfs_file_flush,
 	.release	= nfs_file_release,

trunk/fs/nfs/inode.c

@@ -506,6 +506,7 @@ static struct nfs_open_context *alloc_nfs_open_context(struct vfsmount *mnt, str
 		ctx->cred = get_rpccred(cred);
 		ctx->state = NULL;
 		ctx->lockowner = current->files;
+		ctx->flags = 0;
 		ctx->error = 0;
 		ctx->dir_cookie = 0;
 		atomic_set(&ctx->count, 1);

trunk/mm/memcontrol.c

@@ -978,7 +978,7 @@ static int alloc_mem_cgroup_per_zone_info(struct mem_cgroup *mem, int node)
 {
 	struct mem_cgroup_per_node *pn;
 	struct mem_cgroup_per_zone *mz;
-	int zone;
+	int zone, tmp = node;
 	/*
 	 * This routine is called against possible nodes.
 	 * But it's BUG to call kmalloc() against offline node.
@@ -987,10 +987,9 @@ static int alloc_mem_cgroup_per_zone_info(struct mem_cgroup *mem, int node)
 	 *       never be onlined. It's better to use memory hotplug callback
 	 *       function.
 	 */
-	if (node_state(node, N_HIGH_MEMORY))
-		pn = kmalloc_node(sizeof(*pn), GFP_KERNEL, node);
-	else
-		pn = kmalloc(sizeof(*pn), GFP_KERNEL);
+	if (!node_state(node, N_NORMAL_MEMORY))
+		tmp = -1;
+	pn = kmalloc_node(sizeof(*pn), GFP_KERNEL, tmp);
 	if (!pn)
 		return 1;
 

trunk/net/sunrpc/clnt.c

@@ -261,10 +261,6 @@ struct rpc_clnt *rpc_create(struct rpc_create_args *args)
 	};
 	char servername[48];
 
-	xprt = xprt_create_transport(&xprtargs);
-	if (IS_ERR(xprt))
-		return (struct rpc_clnt *)xprt;
-
 	/*
 	 * If the caller chooses not to specify a hostname, whip
 	 * up a string representation of the passed-in address.

trunk/net/sunrpc/xdr.c

@@ -244,7 +244,7 @@ _copy_to_pages(struct page **pages, size_t pgbase, const char *p, size_t len)
 	pgto = pages + (pgbase >> PAGE_CACHE_SHIFT);
 	pgbase &= ~PAGE_CACHE_MASK;
 
-	do {
+	for (;;) {
 		copy = PAGE_CACHE_SIZE - pgbase;
 		if (copy > len)
 			copy = len;
@@ -253,15 +253,18 @@ _copy_to_pages(struct page **pages, size_t pgbase, const char *p, size_t len)
 		memcpy(vto + pgbase, p, copy);
 		kunmap_atomic(vto, KM_USER0);
 
+		len -= copy;
+		if (len == 0)
+			break;
+
 		pgbase += copy;
 		if (pgbase == PAGE_CACHE_SIZE) {
 			flush_dcache_page(*pgto);
 			pgbase = 0;
 			pgto++;
 		}
 		p += copy;
-
-	} while ((len -= copy) != 0);
+	}
 	flush_dcache_page(*pgto);
 }
 

trunk/sound/pci/es1968.c

@@ -617,6 +617,18 @@ static int snd_es1968_ac97_wait(struct es1968 *chip)
 	return 1; /* timeout */
 }
 
+static int snd_es1968_ac97_wait_poll(struct es1968 *chip)
+{
+	int timeout = 100000;
+
+	while (timeout-- > 0) {
+		if (!(inb(chip->io_port + ESM_AC97_INDEX) & 1))
+			return 0;
+	}
+	snd_printd("es1968: ac97 timeout\n");
+	return 1; /* timeout */
+}
+
 static void snd_es1968_ac97_write(struct snd_ac97 *ac97, unsigned short reg, unsigned short val)
 {
 	struct es1968 *chip = ac97->private_data;
@@ -645,7 +657,7 @@ static unsigned short snd_es1968_ac97_read(struct snd_ac97 *ac97, unsigned short
 	outb(reg | 0x80, chip->io_port + ESM_AC97_INDEX);
 	/*msleep(1);*/
 
-	if (! snd_es1968_ac97_wait(chip)) {
+	if (!snd_es1968_ac97_wait_poll(chip)) {
 		data = inw(chip->io_port + ESM_AC97_DATA);
 		/*msleep(1);*/
 	}