Merge samba.org:/home/paulus/kernel/linux-2.5

into samba.org:/home/paulus/kernel/for-linus-ppc

arch/mips/kernel/linux32.c

@@ -253,6 +253,7 @@ do_execve32(char * filename, u32 * argv, u32 * envp, struct pt_regs * regs)
 
 	bprm.file = file;
 	bprm.filename = filename;
+	bprm.interp = filename;
 	bprm.sh_bang = 0;
 	bprm.loader = 0;
 	bprm.exec = 0;

arch/parisc/kernel/sys_parisc32.c

@@ -183,6 +183,7 @@ do_execve32(char * filename, u32 * argv, u32 * envp, struct pt_regs * regs)
 
 	bprm.file = file;
 	bprm.filename = filename;
+	bprm.interp = filename;
 	bprm.sh_bang = 0;
 	bprm.loader = 0;
 	bprm.exec = 0;

arch/ppc64/kernel/sys_ppc32.c

@@ -1998,6 +1998,7 @@ static int do_execve32(char * filename, u32 * argv, u32 * envp, struct pt_regs *
 
 	bprm.file = file;
 	bprm.filename = filename;
+	bprm.interp = filename;
 	bprm.sh_bang = 0;
 	bprm.loader = 0;
 	bprm.exec = 0;

arch/s390/kernel/compat_linux.c

@@ -1873,6 +1873,7 @@ do_execve32(char * filename, u32 * argv, u32 * envp, struct pt_regs * regs)
 
 	bprm.file = file;
 	bprm.filename = filename;
+	bprm.interp = filename;
 	bprm.sh_bang = 0;
 	bprm.loader = 0;
 	bprm.exec = 0;

drivers/block/as-iosched.c

@@ -1249,7 +1249,7 @@ static int as_dispatch_request(struct as_data *ad)
 			ad->changed_batch = 0;
 		} else
 			ad->changed_batch = 2;
-		arq->request->flags |= REQ_HARDBARRIER;
+		arq->request->flags |= REQ_SOFTBARRIER;
 	}
 
 	/*

drivers/ieee1394/cmp.c

@@ -159,7 +159,7 @@ static void cmp_host_reset(struct hpsb_host *host)
 }
 
 static int pcr_read(struct hpsb_host *host, int nodeid, quadlet_t *buf,
-		    u64 addr, unsigned int length, u16 flags)
+		    u64 addr, size_t length, u16 flags)
 {
 	int csraddr = addr - CSR_REGISTER_BASE;
 	int plug;

drivers/ieee1394/csr.c

@@ -20,6 +20,7 @@
 #include <linux/string.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
+#include <linux/param.h>
 
 #include "ieee1394_types.h"
 #include "hosts.h"
@@ -190,7 +191,7 @@ int hpsb_get_config_rom(struct hpsb_host *host, quadlet_t *buffer,
 
 /* Read topology / speed maps and configuration ROM */
 static int read_maps(struct hpsb_host *host, int nodeid, quadlet_t *buffer,
-                     u64 addr, unsigned int length, u16 fl)
+                     u64 addr, size_t length, u16 fl)
 {
 	unsigned long flags;
         int csraddr = addr - CSR_REGISTER_BASE;
@@ -219,7 +220,7 @@ static int read_maps(struct hpsb_host *host, int nodeid, quadlet_t *buffer,
 #define out if (--length == 0) break
 
 static int read_regs(struct hpsb_host *host, int nodeid, quadlet_t *buf,
-                     u64 addr, unsigned int length, u16 flags)
+                     u64 addr, size_t length, u16 flags)
 {
         int csraddr = addr - CSR_REGISTER_BASE;
         int oldcycle;
@@ -333,7 +334,7 @@ static int read_regs(struct hpsb_host *host, int nodeid, quadlet_t *buf,
 }
 
 static int write_regs(struct hpsb_host *host, int nodeid, int destid,
-		      quadlet_t *data, u64 addr, unsigned int length, u16 flags)
+		      quadlet_t *data, u64 addr, size_t length, u16 flags)
 {
         int csraddr = addr - CSR_REGISTER_BASE;
         
@@ -659,7 +660,7 @@ static int lock64_regs(struct hpsb_host *host, int nodeid, octlet_t * store,
 }
 
 static int write_fcp(struct hpsb_host *host, int nodeid, int dest,
-		     quadlet_t *data, u64 addr, unsigned int length, u16 flags)
+		     quadlet_t *data, u64 addr, size_t length, u16 flags)
 {
         int csraddr = addr - CSR_REGISTER_BASE;
 

drivers/ieee1394/eth1394.c

@@ -89,7 +89,7 @@
 #define TRACE() printk(KERN_ERR "%s:%s[%d] ---- TRACE\n", driver_name, __FUNCTION__, __LINE__)
 
 static char version[] __devinitdata =
-	"$Rev: 1010 $ Ben Collins <bcollins@debian.org>";
+	"$Rev: 1020 $ Ben Collins <bcollins@debian.org>";
 
 struct fragment_info {
 	struct list_head list;
@@ -130,7 +130,7 @@ static const int hdr_type_len[] = {
 
 static const u16 eth1394_speedto_maxpayload[] = {
 /*     S100, S200, S400, S800, S1600, S3200 */
-	512, 1024, 2048, 4096,  8192, 16384
+	512, 1024, 2048, 4096,  4096,  4096
 };
 
 MODULE_AUTHOR("Ben Collins (bcollins@debian.org)");
@@ -1086,7 +1086,7 @@ static int ether1394_data_handler(struct net_device *dev, int srcid, int destid,
 }
 
 static int ether1394_write(struct hpsb_host *host, int srcid, int destid,
-			   quadlet_t *data, u64 addr, unsigned int len, u16 flags)
+			   quadlet_t *data, u64 addr, size_t len, u16 flags)
 {
 	struct host_info *hi = hpsb_get_hostinfo(&eth1394_highlevel, host);
 
@@ -1283,7 +1283,7 @@ static inline int ether1394_prep_write_packet(struct hpsb_packet *p,
 	p->header_size = 16;
 	p->expect_response = 1;
 
-	if (hpsb_get_tlabel(p, !in_interrupt())) {
+	if (hpsb_get_tlabel(p)) {
 		ETH1394_PRINT_G(KERN_ERR, "No more tlabels left while sending "
 				"to node " NODE_BUS_FMT "\n", NODE_BUS_ARGS(host, node));
 		return -1;
@@ -1600,7 +1600,7 @@ static int ether1394_ethtool_ioctl(struct net_device *dev, void *useraddr)
 		case ETHTOOL_GDRVINFO: {
 			struct ethtool_drvinfo info = { ETHTOOL_GDRVINFO };
 			strcpy (info.driver, driver_name);
-			strcpy (info.version, "$Rev: 1010 $");
+			strcpy (info.version, "$Rev: 1020 $");
 			/* FIXME XXX provide sane businfo */
 			strcpy (info.bus_info, "ieee1394");
 			if (copy_to_user (useraddr, &info, sizeof (info)))

drivers/ieee1394/eth1394.h

@@ -26,9 +26,9 @@
 
 #include "ieee1394.h"
 
-/* Register for incoming packets. This is 8192 bytes, which supports up to
- * 1600mbs. We'll need to change this if that ever becomes "small" :)  */
-#define ETHER1394_REGION_ADDR_LEN	8192
+/* Register for incoming packets. This is 4096 bytes, which supports up to
+ * S3200 (per Table 16-3 of IEEE 1394b-2002). */
+#define ETHER1394_REGION_ADDR_LEN	4096
 #define ETHER1394_REGION_ADDR		0xfffff0200000ULL
 #define ETHER1394_REGION_ADDR_END	(ETHER1394_REGION_ADDR + ETHER1394_REGION_ADDR_LEN)
 

drivers/ieee1394/highlevel.c

@@ -436,7 +436,7 @@ void highlevel_host_reset(struct hpsb_host *host)
 }
 
 void highlevel_iso_receive(struct hpsb_host *host, void *data,
-                           unsigned int length)
+			   size_t length)
 {
         struct list_head *entry;
         struct hpsb_highlevel *hl;
@@ -456,7 +456,7 @@ void highlevel_iso_receive(struct hpsb_host *host, void *data,
 }
 
 void highlevel_fcp_request(struct hpsb_host *host, int nodeid, int direction,
-                           void *data, unsigned int length)
+			   void *data, size_t length)
 {
         struct list_head *entry;
         struct hpsb_highlevel *hl;

drivers/ieee1394/highlevel.h

@@ -46,14 +46,14 @@ struct hpsb_highlevel {
          * packet header (first quadlet, CRCs are missing).  You may get called
          * for channel/host combinations you did not request. */
         void (*iso_receive) (struct hpsb_host *host, int channel,
-                             quadlet_t *data, unsigned int length);
+                             quadlet_t *data, size_t length);
 
         /* A write request was received on either the FCP_COMMAND (direction =
          * 0) or the FCP_RESPONSE (direction = 1) register.  The cts arg
          * contains the cts field (first byte of data).
          */
         void (*fcp_request) (struct hpsb_host *host, int nodeid, int direction,
-                             int cts, u8 *data, unsigned int length);
+                             int cts, u8 *data, size_t length);
 
 
 	struct list_head hl_list;
@@ -79,9 +79,9 @@ struct hpsb_address_ops {
            will send the response itself
         */
         int (*read) (struct hpsb_host *host, int nodeid, quadlet_t *buffer,
-                     u64 addr, unsigned int length, u16 flags);
+                     u64 addr, size_t length, u16 flags);
         int (*write) (struct hpsb_host *host, int nodeid, int destid,
-		      quadlet_t *data, u64 addr, unsigned int length, u16 flags);
+		      quadlet_t *data, u64 addr, size_t length, u16 flags);
 
         /* Lock transactions: write results of ext_tcode operation into
          * *store. */
@@ -117,9 +117,9 @@ int highlevel_lock64(struct hpsb_host *host, int nodeid, octlet_t *store,
                      u64 addr, octlet_t data, octlet_t arg, int ext_tcode, u16 flags);
 
 void highlevel_iso_receive(struct hpsb_host *host, void *data,
-                           unsigned int length);
+                           size_t length);
 void highlevel_fcp_request(struct hpsb_host *host, int nodeid, int direction,
-                           void *data, unsigned int length);
+                           void *data, size_t length);
 
 
 /*

drivers/ieee1394/ieee1394_core.c

@@ -281,8 +281,8 @@ static int check_selfids(struct hpsb_host *host)
 
 static void build_speed_map(struct hpsb_host *host, int nodecount)
 {
-        char speedcap[nodecount];
-        char cldcnt[nodecount];
+	u8 speedcap[nodecount];
+	u8 cldcnt[nodecount];
         u8 *map = host->speed_map;
         struct selfid *sid;
         struct ext_selfid *esid;
@@ -333,7 +333,7 @@ static void build_speed_map(struct hpsb_host *host, int nodecount)
         for (i = 1; i < nodecount; i++) {
                 for (j = cldcnt[i], n = i - 1; j > 0; j--) {
                         cldcnt[i] += cldcnt[n];
-                        speedcap[n] = MIN(speedcap[n], speedcap[i]);
+                        speedcap[n] = min(speedcap[n], speedcap[i]);
                         n -= cldcnt[n] + 1;
                 }
         }
@@ -342,11 +342,11 @@ static void build_speed_map(struct hpsb_host *host, int nodecount)
                 for (i = n - cldcnt[n]; i <= n; i++) {
                         for (j = 0; j < (n - cldcnt[n]); j++) {
                                 map[j*64 + i] = map[i*64 + j] =
-                                        MIN(map[i*64 + j], speedcap[n]);
+                                        min(map[i*64 + j], speedcap[n]);
                         }
                         for (j = n + 1; j < nodecount; j++) {
                                 map[j*64 + i] = map[i*64 + j] =
-                                        MIN(map[i*64 + j], speedcap[n]);
+                                        min(map[i*64 + j], speedcap[n]);
                         }
                 }
         }

drivers/ieee1394/ieee1394_transactions.c

@@ -113,35 +113,33 @@ static void fill_async_stream_packet(struct hpsb_packet *packet, int length,
 /**
  * hpsb_get_tlabel - allocate a transaction label
  * @packet: the packet who's tlabel/tpool we set
- * @wait: whether to sleep if no tlabel is available
  *
- * Every asynchronous transaction on the 1394 bus needs a transaction label to
- * match the response to the request.  This label has to be different from any
- * other transaction label in an outstanding request to the same node to make
- * matching possible without ambiguity.
+ * Every asynchronous transaction on the 1394 bus needs a transaction
+ * label to match the response to the request.  This label has to be
+ * different from any other transaction label in an outstanding request to
+ * the same node to make matching possible without ambiguity.
  *
- * There are 64 different tlabels, so an allocated tlabel has to be freed with
- * hpsb_free_tlabel() after the transaction is complete (unless it's reused again for
- * the same target node).
- *
- * @wait cannot be set if in_interrupt()
+ * There are 64 different tlabels, so an allocated tlabel has to be freed
+ * with hpsb_free_tlabel() after the transaction is complete (unless it's
+ * reused again for the same target node).
  *
  * Return value: Zero on success, otherwise non-zero. A non-zero return
- * generally means there are no available tlabels.
+ * generally means there are no available tlabels. If this is called out
+ * of interrupt or atomic context, then it will sleep until can return a
+ * tlabel.
  */
-int hpsb_get_tlabel(struct hpsb_packet *packet, int wait)
+int hpsb_get_tlabel(struct hpsb_packet *packet)
 {
 	unsigned long flags;
 	struct hpsb_tlabel_pool *tp;
 
 	tp = &packet->host->tpool[packet->node_id & NODE_MASK];
 
-	if (wait) {
-		BUG_ON(in_interrupt());
-		down(&tp->count);
-	} else {
+	if (in_interrupt() || in_atomic()) {
 		if (down_trylock(&tp->count))
 			return 1;
+	} else {
+		down(&tp->count);
 	}
 
 	spin_lock_irqsave(&tp->lock, flags);
@@ -270,7 +268,7 @@ struct hpsb_packet *hpsb_make_readpacket(struct hpsb_host *host, nodeid_t node,
 	packet->host = host;
 	packet->node_id = node;
 
-	if (hpsb_get_tlabel(packet, in_interrupt() ? 0 : 1)) {
+	if (hpsb_get_tlabel(packet)) {
 		free_hpsb_packet(packet);
 		return NULL;
 	}
@@ -301,7 +299,7 @@ struct hpsb_packet *hpsb_make_writepacket (struct hpsb_host *host, nodeid_t node
 	packet->host = host;
 	packet->node_id = node;
 
-	if (hpsb_get_tlabel(packet, in_interrupt() ? 0 : 1)) {
+	if (hpsb_get_tlabel(packet)) {
 		free_hpsb_packet(packet);
 		return NULL;
 	}
@@ -329,7 +327,7 @@ struct hpsb_packet *hpsb_make_lockpacket(struct hpsb_host *host, nodeid_t node,
 
 	p->host = host;
 	p->node_id = node;
-	if (hpsb_get_tlabel(p, in_interrupt() ? 0 : 1)) {
+	if (hpsb_get_tlabel(p)) {
 		free_hpsb_packet(p);
 		return NULL;
 	}
@@ -366,7 +364,7 @@ struct hpsb_packet *hpsb_make_lock64packet(struct hpsb_host *host, nodeid_t node
 
 	p->host = host;
 	p->node_id = node;
-	if (hpsb_get_tlabel(p, in_interrupt() ? 0 : 1)) {
+	if (hpsb_get_tlabel(p)) {
 		free_hpsb_packet(p);
 		return NULL;
 	}

drivers/ieee1394/ieee1394_transactions.h

@@ -7,7 +7,7 @@
 /*
  * Get and free transaction labels.
  */
-int hpsb_get_tlabel(struct hpsb_packet *packet, int wait);
+int hpsb_get_tlabel(struct hpsb_packet *packet);
 void hpsb_free_tlabel(struct hpsb_packet *packet);
 
 struct hpsb_packet *hpsb_make_readpacket(struct hpsb_host *host, nodeid_t node,

drivers/ieee1394/ieee1394_types.h

@@ -7,7 +7,7 @@
 #include <linux/version.h>
 #include <linux/list.h>
 #include <linux/init.h>
-#include <linux/string.h>
+#include <linux/spinlock.h>
 #include <asm/semaphore.h>
 #include <asm/byteorder.h>
 
@@ -18,11 +18,6 @@
 #define minor(dev) MINOR(dev)
 #endif
 
-#include <linux/spinlock.h>
-
-#ifndef MIN
-#define MIN(a,b) ((a) < (b) ? (a) : (b))
-#endif
 
 /* Transaction Label handling */
 struct hpsb_tlabel_pool {

drivers/ieee1394/nodemgr.c

@@ -63,7 +63,7 @@ static char *nodemgr_find_oui_name(int oui)
  */
 
 /* 
- * The nodemgr relies heavily on the Drive Model for device callbacks and
+ * The nodemgr relies heavily on the Driver Model for device callbacks and
  * driver/device mappings. The old nodemgr used to handle all this itself,
  * but now we are much simpler because of the LDM.
  */

drivers/ieee1394/ohci1394.c

@@ -161,7 +161,7 @@ printk(level "%s: " fmt "\n" , OHCI1394_DRIVER_NAME , ## args)
 printk(level "%s_%d: " fmt "\n" , OHCI1394_DRIVER_NAME, card , ## args)
 
 static char version[] __devinitdata =
-	"$Rev: 1011 $ Ben Collins <bcollins@debian.org>";
+	"$Rev: 1023 $ Ben Collins <bcollins@debian.org>";
 
 /* Module Parameters */
 static int phys_dma = 1;

drivers/ieee1394/pcilynx.c

@@ -1000,7 +1000,7 @@ static ssize_t mem_dmaread(struct memdata *md, u32 physbuf, ssize_t count,
         DECLARE_WAITQUEUE(wait, current);
 
         count &= ~3;
-        count = MIN(count, 53196);
+        count = min(count, 53196);
         retval = count;
 
         if (reg_read(md->lynx, DMA_CHAN_CTRL(CHANNEL_LOCALBUS))
@@ -1011,14 +1011,14 @@ static ssize_t mem_dmaread(struct memdata *md, u32 physbuf, ssize_t count,
         reg_write(md->lynx, LBUS_ADDR, md->type | offset);
 
         pcl = edit_pcl(md->lynx, md->lynx->dmem_pcl, &pcltmp);
-        pcl->buffer[0].control = PCL_CMD_LBUS_TO_PCI | MIN(count, 4092);
+        pcl->buffer[0].control = PCL_CMD_LBUS_TO_PCI | min(count, 4092);
         pcl->buffer[0].pointer = physbuf;
         count -= 4092;
 
         i = 0;
         while (count > 0) {
                 i++;
-                pcl->buffer[i].control = MIN(count, 4092);
+                pcl->buffer[i].control = min(count, 4092);
                 pcl->buffer[i].pointer = physbuf + i * 4092;
                 count -= 4092;
         }

drivers/ieee1394/raw1394.c

@@ -83,9 +83,9 @@ static const int iso_buffer_max = 4 * 1024 * 1024; /* 4 MB */
 static struct hpsb_highlevel raw1394_highlevel;
 
 static int arm_read (struct hpsb_host *host, int nodeid, quadlet_t *buffer,
-             u64 addr, unsigned int length, u16 flags);
+		     u64 addr, size_t length, u16 flags);
 static int arm_write (struct hpsb_host *host, int nodeid, int destid,
-              quadlet_t *data, u64 addr, unsigned int length, u16 flags);
+		      quadlet_t *data, u64 addr, size_t length, u16 flags);
 static int arm_lock (struct hpsb_host *host, int nodeid, quadlet_t *store,
              u64 addr, quadlet_t data, quadlet_t arg, int ext_tcode, u16 flags);
 static int arm_lock64 (struct hpsb_host *host, int nodeid, octlet_t *store,
@@ -293,7 +293,7 @@ static void host_reset(struct hpsb_host *host)
 }
 
 static void iso_receive(struct hpsb_host *host, int channel, quadlet_t *data,
-                        unsigned int length)
+                        size_t length)
 {
         unsigned long flags;
         struct list_head *lh;
@@ -345,7 +345,7 @@ static void iso_receive(struct hpsb_host *host, int channel, quadlet_t *data,
                         req->req.generation = get_hpsb_generation(host);
                         req->req.misc = 0;
                         req->req.recvb = ptr2int(fi->iso_buffer);
-                        req->req.length = MIN(length, fi->iso_buffer_length);
+                        req->req.length = min(length, fi->iso_buffer_length);
                         
                         list_add_tail(&req->list, &reqs);
                 }
@@ -362,7 +362,7 @@ static void iso_receive(struct hpsb_host *host, int channel, quadlet_t *data,
 }
 
 static void fcp_request(struct hpsb_host *host, int nodeid, int direction,
-                        int cts, u8 *data, unsigned int length)
+			int cts, u8 *data, size_t length)
 {
         unsigned long flags;
         struct list_head *lh;
@@ -538,9 +538,9 @@ static int state_initialized(struct file_info *fi, struct pending_request *req)
 
                 if (khl != NULL) {
                         req->req.error = RAW1394_ERROR_NONE;
-                        req->req.length = MIN(req->req.length,
-                                              sizeof(struct raw1394_khost_list)
-                                              * req->req.misc);
+                        req->req.length = min(req->req.length,
+                                              (u32)(sizeof(struct raw1394_khost_list)
+                                              * req->req.misc));
                         req->free_data = 1;
                 } else {
                         return -ENOMEM;
@@ -878,7 +878,7 @@ static int handle_async_send(struct file_info *fi, struct pending_request *req)
 }
 
 static int arm_read (struct hpsb_host *host, int nodeid, quadlet_t *buffer,
-             u64 addr, unsigned int length, u16 flags)
+		     u64 addr, size_t length, u16 flags)
 {
         struct pending_request *req;
         struct list_head *lh;
@@ -1014,7 +1014,7 @@ static int arm_read (struct hpsb_host *host, int nodeid, quadlet_t *buffer,
 }
 
 static int arm_write (struct hpsb_host *host, int nodeid, int destid,
-              quadlet_t *data, u64 addr, unsigned int length, u16 flags)
+		      quadlet_t *data, u64 addr, size_t length, u16 flags)
 {
         struct pending_request *req;
         struct list_head *lh;
@@ -2079,6 +2079,9 @@ static int raw1394_iso_xmit_init(struct file_info *fi, void *uaddr)
 {
 	struct raw1394_iso_status stat;
 
+	if (!fi->host)
+		return -EINVAL;
+
 	if (copy_from_user(&stat, uaddr, sizeof(stat)))
 		return -EFAULT;
 
@@ -2108,6 +2111,9 @@ static int raw1394_iso_recv_init(struct file_info *fi, void *uaddr)
 {
 	struct raw1394_iso_status stat;
 
+	if (!fi->host)
+		return -EINVAL;
+
 	if (copy_from_user(&stat, uaddr, sizeof(stat)))
 		return -EFAULT;
 

drivers/ieee1394/sbp2.c

@@ -80,7 +80,7 @@
 #include "sbp2.h"
 
 static char version[] __devinitdata =
-	"$Rev: 1010 $ Ben Collins <bcollins@debian.org>";
+	"$Rev: 1018 $ Ben Collins <bcollins@debian.org>";
 
 /*
  * Module load parameter definitions
@@ -944,6 +944,16 @@ static int sbp2_start_device(struct scsi_id_instance_data *scsi_id)
 		return -EBUSY;
 	}
 
+	/* Schedule a timeout here. The reason is that we may be so close
+	 * to a bus reset, that the device is not available for logins.
+	 * This can happen when the bus reset is caused by the host
+	 * connected to the sbp2 device being removed. That host would
+	 * have a certain amount of time to relogin before the sbp2 device
+	 * allows someone else to login instead. One second makes sense. */
+	set_current_state(TASK_INTERRUPTIBLE);
+	schedule_timeout(HZ);
+						
+
 	/*
 	 * Login to the sbp-2 device
 	 */
@@ -1060,7 +1070,7 @@ static void sbp2_remove_device(struct scsi_id_instance_data *scsi_id)
  * physical dma in hardware). Mostly just here for debugging...
  */
 static int sbp2_handle_physdma_write(struct hpsb_host *host, int nodeid, int destid, quadlet_t *data,
-                                     u64 addr, unsigned int length, u16 flags)
+                                     u64 addr, size_t length, u16 flags)
 {
 
         /*
@@ -1076,7 +1086,7 @@ static int sbp2_handle_physdma_write(struct hpsb_host *host, int nodeid, int des
  * physical dma in hardware). Mostly just here for debugging...
  */
 static int sbp2_handle_physdma_read(struct hpsb_host *host, int nodeid, quadlet_t *data,
-                                    u64 addr, unsigned int length, u16 flags)
+                                    u64 addr, size_t length, u16 flags)
 {
 
         /*
@@ -2399,7 +2409,7 @@ static void sbp2_check_sbp2_response(struct scsi_id_instance_data *scsi_id,
  * This function deals with status writes from the SBP-2 device
  */
 static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid, int destid,
-				    quadlet_t *data, u64 addr, unsigned int length, u16 fl)
+				    quadlet_t *data, u64 addr, size_t length, u16 fl)
 {
 	struct sbp2scsi_host_info *hi = NULL;
 	struct scsi_id_instance_data *scsi_id = NULL;

drivers/ieee1394/sbp2.h

@@ -479,9 +479,9 @@ static void sbp2_remove_device(struct scsi_id_instance_data *scsi_id);
 
 #ifdef CONFIG_IEEE1394_SBP2_PHYS_DMA
 static int sbp2_handle_physdma_write(struct hpsb_host *host, int nodeid, int destid, quadlet_t *data,
-                                     u64 addr, unsigned int length, u16 flags);
+                                     u64 addr, size_t length, u16 flags);
 static int sbp2_handle_physdma_read(struct hpsb_host *host, int nodeid, quadlet_t *data,
-                                    u64 addr, unsigned int length, u16 flags);
+                                    u64 addr, size_t length, u16 flags);
 #endif
 
 /*
@@ -492,7 +492,7 @@ static int sbp2_login_device(struct scsi_id_instance_data *scsi_id);
 static int sbp2_reconnect_device(struct scsi_id_instance_data *scsi_id); 
 static int sbp2_logout_device(struct scsi_id_instance_data *scsi_id); 
 static int sbp2_handle_status_write(struct hpsb_host *host, int nodeid, int destid,
-				    quadlet_t *data, u64 addr, unsigned int length, u16 flags);
+				    quadlet_t *data, u64 addr, size_t length, u16 flags);
 static int sbp2_agent_reset(struct scsi_id_instance_data *scsi_id, int wait);
 static int sbp2_create_command_orb(struct scsi_id_instance_data *scsi_id,
 				   struct sbp2_command_info *command,

fs/ext3/file.c

@@ -60,7 +60,8 @@ ext3_file_write(struct kiocb *iocb, const char *buf, size_t count, loff_t pos)
 {
 	struct file *file = iocb->ki_filp;
 	struct inode *inode = file->f_dentry->d_inode;
-	int ret, err;
+	ssize_t ret;
+	int err;
 
 	ret = generic_file_aio_write(iocb, buf, count, pos);
 

include/asm-i386/div64.h

 #ifndef __I386_DIV64
 #define __I386_DIV64
 
+/*
+ * do_div() is NOT a C function. It wants to return
+ * two values (the quotient and the remainder), but
+ * since that doesn't work very well in C, what it
+ * does is:
+ *
+ * - modifies the 64-bit dividend _in_place_
+ * - returns the 32-bit remainder
+ *
+ * This ends up being the most efficient "calling
+ * convention" on x86.
+ */
 #define do_div(n,base) ({ \
 	unsigned long __upper, __low, __high, __mod; \
 	asm("":"=a" (__low), "=d" (__high):"A" (n)); \