Merge bk://kernel.bkbits.net/davem/net-2.5

into home.transmeta.com:/home/torvalds/v2.5/linux

Makefile

@@ -501,7 +501,7 @@ include/linux/version.h: Makefile
 
 .PHONY: depend dep
 depend dep:
-	@echo'*** Warning: make $@ is unnecessary now.'
+	@echo '*** Warning: make $@ is unnecessary now.'
 
 # ---------------------------------------------------------------------------
 # Modules

arch/i386/kernel/entry.S

@@ -792,8 +792,8 @@ ENTRY(sys_call_table)
 	.long sys_io_getevents
 	.long sys_io_submit
 	.long sys_io_cancel
-	.long sys_ni_syscall 	/* 250 sys_alloc_hugepages - reuse this */
-	.long sys_ni_syscall	/* was sys_free_hugepages - reuse this */
+	.long sys_fadvise64	/* 250 */
+	.long sys_ni_syscall
 	.long sys_exit_group
 	.long sys_lookup_dcookie
 	.long sys_epoll_create

arch/i386/kernel/time.c

@@ -265,6 +265,41 @@ static inline void do_timer_interrupt(int irq, void *dev_id, struct pt_regs *reg
 #endif
 }
 
+/*
+ * Lost tick detection and compensation
+ */
+static inline void detect_lost_tick(void)
+{
+	/* read time since last interrupt */
+	unsigned long delta = timer->get_offset();
+	static unsigned long dbg_print;
+	
+	/* check if delta is greater then two ticks */
+	if(delta >= 2*(1000000/HZ)){
+
+		/*
+		 * only print debug info first 5 times
+		 */
+		/*
+		 * AKPM: disable this for now; it's nice, but irritating.
+		 */
+		if (0 && dbg_print < 5) {
+			printk(KERN_WARNING "\nWarning! Detected %lu "
+				"micro-second gap between interrupts.\n",
+				delta);
+			printk(KERN_WARNING "  Compensating for %lu lost "
+				"ticks.\n",
+				delta/(1000000/HZ)-1);
+			dump_stack();
+			dbg_print++;
+		}
+		/* calculate number of missed ticks */
+		delta = delta/(1000000/HZ)-1;
+		jiffies += delta;
+	}
+		
+}
+
 /*
  * This is the same as the above, except we _also_ save the current
  * Time Stamp Counter value at the time of the timer interrupt, so that
@@ -281,6 +316,7 @@ void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
 	 */
 	write_lock(&xtime_lock);
 
+	detect_lost_tick();
 	timer->mark_offset();
  
 	do_timer_interrupt(irq, NULL, regs);

arch/i386/mm/hugetlbpage.c

@@ -283,8 +283,8 @@ int try_to_free_low(int count)
 				break;
 		}
 		page = list_entry(p, struct page, list);
-		if ((page_zone(page))->name[0] != 'H') // Look for non-Highmem
-				map = page;
+		if (!PageHighMem(page))
+			map = page;
 	}
 	if (map) {
 		list_del(&map->list);

arch/i386/mm/init.c

@@ -508,20 +508,36 @@ void __init mem_init(void)
 #endif
 }
 
-#if CONFIG_X86_PAE
-struct kmem_cache_s *pae_pgd_cachep;
+#include <linux/slab.h>
+
+kmem_cache_t *pmd_cache;
+kmem_cache_t *pgd_cache;
+
+void pmd_ctor(void *, kmem_cache_t *, unsigned long);
+void pgd_ctor(void *, kmem_cache_t *, unsigned long);
 
 void __init pgtable_cache_init(void)
 {
+	if (PTRS_PER_PMD > 1) {
+		pmd_cache = kmem_cache_create("pae_pmd",
+						PTRS_PER_PMD*sizeof(pmd_t),
+						0,
+						SLAB_HWCACHE_ALIGN | SLAB_MUST_HWCACHE_ALIGN,
+						pmd_ctor,
+						NULL);
+
+		if (!pmd_cache)
+			panic("pgtable_cache_init(): cannot create pmd cache");
+	}
+
         /*
          * PAE pgds must be 16-byte aligned:
          */
-        pae_pgd_cachep = kmem_cache_create("pae_pgd", 32, 0,
-                SLAB_HWCACHE_ALIGN | SLAB_MUST_HWCACHE_ALIGN, NULL, NULL);
-        if (!pae_pgd_cachep)
-                panic("init_pae(): Cannot alloc pae_pgd SLAB cache");
+        pgd_cache = kmem_cache_create("pgd", PTRS_PER_PGD*sizeof(pgd_t), 0,
+                SLAB_HWCACHE_ALIGN | SLAB_MUST_HWCACHE_ALIGN, pgd_ctor, NULL);
+        if (!pgd_cache)
+                panic("pgtable_cache_init(): Cannot create pgd cache");
 }
-#endif
 
 /* Put this after the callers, so that it cannot be inlined */
 static int do_test_wp_bit(void)

arch/i386/mm/pgtable.c

@@ -166,61 +166,60 @@ struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
 	return pte;
 }
 
-#if CONFIG_X86_PAE
+extern kmem_cache_t *pmd_cache;
+extern kmem_cache_t *pgd_cache;
 
-pgd_t *pgd_alloc(struct mm_struct *mm)
+void pmd_ctor(void *__pmd, kmem_cache_t *pmd_cache, unsigned long flags)
 {
-	int i;
-	pgd_t *pgd = kmem_cache_alloc(pae_pgd_cachep, GFP_KERNEL);
-
-	if (pgd) {
-		for (i = 0; i < USER_PTRS_PER_PGD; i++) {
-			unsigned long pmd = __get_free_page(GFP_KERNEL);
-			if (!pmd)
-				goto out_oom;
-			clear_page(pmd);
-			set_pgd(pgd + i, __pgd(1 + __pa(pmd)));
-		}
-		memcpy(pgd + USER_PTRS_PER_PGD,
-			swapper_pg_dir + USER_PTRS_PER_PGD,
-			(PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
-	}
-	return pgd;
-out_oom:
-	for (i--; i >= 0; i--)
-		free_page((unsigned long)__va(pgd_val(pgd[i])-1));
-	kmem_cache_free(pae_pgd_cachep, pgd);
-	return NULL;
+	clear_page(__pmd);
 }
 
-void pgd_free(pgd_t *pgd)
+void pgd_ctor(void *__pgd, kmem_cache_t *pgd_cache, unsigned long flags)
 {
-	int i;
+	pgd_t *pgd = __pgd;
 
-	for (i = 0; i < USER_PTRS_PER_PGD; i++)
-		free_page((unsigned long)__va(pgd_val(pgd[i])-1));
-	kmem_cache_free(pae_pgd_cachep, pgd);
+	if (PTRS_PER_PMD == 1)
+		memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
+	memcpy(pgd + USER_PTRS_PER_PGD,
+		swapper_pg_dir + USER_PTRS_PER_PGD,
+		(PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
 }
 
-#else
-
 pgd_t *pgd_alloc(struct mm_struct *mm)
 {
-	pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL);
-
-	if (pgd) {
-		memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
-		memcpy(pgd + USER_PTRS_PER_PGD,
-			swapper_pg_dir + USER_PTRS_PER_PGD,
-			(PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
+	int i;
+	pgd_t *pgd = kmem_cache_alloc(pgd_cache, SLAB_KERNEL);
+
+	if (PTRS_PER_PMD == 1)
+		return pgd;
+	else if (!pgd)
+		return NULL;
+
+	for (i = 0; i < USER_PTRS_PER_PGD; ++i) {
+		pmd_t *pmd = kmem_cache_alloc(pmd_cache, SLAB_KERNEL);
+		if (!pmd)
+			goto out_oom;
+		set_pgd(pgd + i, __pgd(1 + __pa((unsigned long long)((unsigned long)pmd))));
 	}
 	return pgd;
+
+out_oom:
+	for (i--; i >= 0; --i)
+		kmem_cache_free(pmd_cache, (void *)__va(pgd_val(pgd[i])-1));
+	kmem_cache_free(pgd_cache, (void *)pgd);
+	return NULL;
 }
 
 void pgd_free(pgd_t *pgd)
 {
-	free_page((unsigned long)pgd);
-}
+	int i;
 
-#endif /* CONFIG_X86_PAE */
+	if (PTRS_PER_PMD > 1) {
+		for (i = 0; i < USER_PTRS_PER_PGD; ++i) {
+			kmem_cache_free(pmd_cache, (void *)__va(pgd_val(pgd[i])-1));
+			set_pgd(pgd + i, __pgd(0));
+		}
+	}
 
+	kmem_cache_free(pgd_cache, (void *)pgd);
+}

drivers/base/cpu.c

@@ -35,7 +35,7 @@ struct device_driver cpu_driver = {
  */
 int __init register_cpu(struct cpu *cpu, int num, struct node *root)
 {
-	cpu->node_id = __cpu_to_node(num);
+	cpu->node_id = cpu_to_node(num);
 	cpu->sysdev.name = "cpu";
 	cpu->sysdev.id = num;
 	if (root)

drivers/base/memblk.c

@@ -36,7 +36,7 @@ struct device_driver memblk_driver = {
  */
 int __init register_memblk(struct memblk *memblk, int num, struct node *root)
 {
-	memblk->node_id = __memblk_to_node(num);
+	memblk->node_id = memblk_to_node(num);
 	memblk->sysdev.name = "memblk";
 	memblk->sysdev.id = num;
 	if (root)

drivers/base/node.c

@@ -72,7 +72,7 @@ int __init register_node(struct node *node, int num, struct node *parent)
 {
 	int error;
 
-	node->cpumap = __node_to_cpu_mask(num);
+	node->cpumap = node_to_cpumask(num);
 	node->sysroot.id = num;
 	if (parent)
 		node->sysroot.dev.parent = &parent->sysroot.sysdev;

drivers/block/DAC960.h

@@ -2305,6 +2305,8 @@ typedef struct DAC960_Command
   unsigned int BlockNumber;
   unsigned int BlockCount;
   unsigned int SegmentCount;
+  int	DmaDirection;
+  struct scatterlist *cmd_sglist;
   IO_Request_T *Request;
   struct pci_dev *PciDevice;
   union {

drivers/block/ll_rw_blk.c

@@ -274,7 +274,7 @@ void blk_queue_bounce_limit(request_queue_t *q, u64 dma_addr)
 		init_emergency_isa_pool();
 		q->bounce_gfp = GFP_NOIO | GFP_DMA;
 	} else
-		q->bounce_gfp = GFP_NOHIGHIO;
+		q->bounce_gfp = GFP_NOIO;
 
 	/*
 	 * keep this for debugging for now...

drivers/char/Kconfig

@@ -992,5 +992,12 @@ config RAW_DRIVER
 	  Once bound, I/O against /dev/raw/rawN uses efficient zero-copy I/O. 
 	  See the raw(8) manpage for more details.
 
+config HANGCHECK_TIMER
+	tristate "Hangcheck timer"
+	help
+	  The hangcheck-timer module detects when the system has gone
+	  out to lunch past a certain margin.  It can reboot the system
+	  or merely print a warning.
+
 endmenu
 

drivers/char/Makefile

@@ -77,6 +77,7 @@ obj-$(CONFIG_DRM) += drm/
 obj-$(CONFIG_PCMCIA) += pcmcia/
 obj-$(CONFIG_IPMI_HANDLER) += ipmi/
 
+obj-$(CONFIG_HANGCHECK_TIMER) += hangcheck-timer.o
 
 # Files generated that shall be removed upon make clean
 clean-files := consolemap_deftbl.c defkeymap.c qtronixmap.c

drivers/char/agp/agp.h

@@ -47,7 +47,7 @@ static void __attribute__((unused)) global_cache_flush(void)
 	flush_agp_cache();
 }
 #else
-static void global_cache_flush(void)
+static inline void global_cache_flush(void)
 {
 	flush_agp_cache();
 }

drivers/char/hangcheck-timer.c

+/*
+ * hangcheck-timer.c
+ *
+ * Driver for a little io fencing timer.
+ *
+ * Copyright (C) 2002 Oracle Corporation.  All rights reserved.
+ *
+ * Author: Joel Becker <joel.becker@oracle.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License version 2 as published by the Free Software Foundation.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ * 
+ * You should have recieved a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ */
+
+/*
+ * The hangcheck-timer driver uses the TSC to catch delays that
+ * jiffies does not notice.  A timer is set.  When the timer fires, it
+ * checks whether it was delayed and if that delay exceeds a given
+ * margin of error.  The hangcheck_tick module paramter takes the timer
+ * duration in seconds.  The hangcheck_margin parameter defines the
+ * margin of error, in seconds.  The defaults are 60 seconds for the
+ * timer and 180 seconds for the margin of error.  IOW, a timer is set
+ * for 60 seconds.  When the timer fires, the callback checks the
+ * actual duration that the timer waited.  If the duration exceeds the
+ * alloted time and margin (here 60 + 180, or 240 seconds), the machine
+ * is restarted.  A healthy machine will have the duration match the
+ * expected timeout very closely.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/reboot.h>
+#include <linux/init.h>
+#include <asm/uaccess.h>
+
+
+#define VERSION_STR "0.5.0"
+
+#define DEFAULT_IOFENCE_MARGIN 60	/* Default fudge factor, in seconds */
+#define DEFAULT_IOFENCE_TICK 180	/* Default timer timeout, in seconds */
+
+static int hangcheck_tick = DEFAULT_IOFENCE_TICK;
+static int hangcheck_margin = DEFAULT_IOFENCE_MARGIN;
+static int hangcheck_reboot;  /* Defaults to not reboot */
+
+/* Driver options */
+module_param(hangcheck_tick, int, 0);
+MODULE_PARM_DESC(hangcheck_tick, "Timer delay.");
+module_param(hangcheck_margin, int, 0);
+MODULE_PARM_DESC(hangcheck_margin, "If the hangcheck timer has been delayed more than hangcheck_margin seconds, the driver will fire.");
+module_param(hangcheck_reboot, int, 0);
+MODULE_PARM_DESC(hangcheck_reboot, "If nonzero, the machine will reboot when the timer margin is exceeded.");
+
+MODULE_AUTHOR("Joel Becker");
+MODULE_DESCRIPTION("Hangcheck-timer detects when the system has gone out to lunch past a certain margin.");
+MODULE_LICENSE("GPL");
+
+
+/* Last time scheduled */
+static unsigned long long hangcheck_tsc, hangcheck_tsc_margin;
+
+static void hangcheck_fire(unsigned long);
+
+static struct timer_list hangcheck_ticktock =
+		TIMER_INITIALIZER(hangcheck_fire, 0, 0);
+
+static void hangcheck_fire(unsigned long data)
+{
+	unsigned long long cur_tsc, tsc_diff;
+
+	cur_tsc = get_cycles();
+
+	if (cur_tsc > hangcheck_tsc)
+		tsc_diff = cur_tsc - hangcheck_tsc;
+	else
+		tsc_diff = (cur_tsc + (~0ULL - hangcheck_tsc)); /* or something */
+
+	if (tsc_diff > hangcheck_tsc_margin) {
+		if (hangcheck_reboot) {
+			printk(KERN_CRIT "Hangcheck: hangcheck is restarting the machine.\n");
+			machine_restart(NULL);
+		} else {
+			printk(KERN_CRIT "Hangcheck: hangcheck value past margin!\n");
+		}
+	}
+	mod_timer(&hangcheck_ticktock, jiffies + (hangcheck_tick*HZ));
+	hangcheck_tsc = get_cycles();
+}
+
+
+static int __init hangcheck_init(void)
+{
+	printk("Hangcheck: starting hangcheck timer %s (tick is %d seconds, margin is %d seconds).\n",
+	       VERSION_STR, hangcheck_tick, hangcheck_margin);
+
+	hangcheck_tsc_margin = hangcheck_margin + hangcheck_tick;
+	hangcheck_tsc_margin *= HZ;
+	hangcheck_tsc_margin *= current_cpu_data.loops_per_jiffy;
+
+	hangcheck_tsc = get_cycles();
+	mod_timer(&hangcheck_ticktock, jiffies + (hangcheck_tick*HZ));
+
+	return 0;
+}
+
+
+static void __exit hangcheck_exit(void)
+{
+	del_timer_sync(&hangcheck_ticktock);
+}
+
+module_init(hangcheck_init);
+module_exit(hangcheck_exit);

drivers/media/video/bttv-driver.c

@@ -247,7 +247,7 @@ const struct bttv_tvnorm bttv_tvnorms[] = {
 	},{
 		.v4l2_id        = V4L2_STD_PAL_N,
 		.name           = "PAL-N",
-		.Fsc             35468950,
+		.Fsc            = 35468950,
 		.swidth         = 768,
 		.sheight        = 576,
 		.totalwidth     = 1135,

drivers/media/video/stradis.c

@@ -241,12 +241,6 @@ static void attach_inform(struct saa7146 *saa, int id)
 	}
 }
 
-static void detach_inform(struct saa7146 *saa, int id)
-{
-	int i;
-	i = saa->nr;
-}
-
 static void I2CBusScan(struct saa7146 *saa)
 {
 	int i;
@@ -1323,9 +1317,12 @@ static void make_clip_tab(struct saa7146 *saa, struct video_clip *cr, int ncr)
 		clip_draw_rectangle(clipmap, 0, 0, 1024, -(saa->win.y));
 }
 
-static int saa_ioctl(struct video_device *dev, unsigned int cmd, void *arg)
+static int saa_ioctl(struct inode *inode, struct file *file,
+		     unsigned int cmd, unsigned long argl)
 {
-	struct saa7146 *saa = (struct saa7146 *) dev;
+	struct saa7146 *saa = file->private_data;
+	void *arg = (void *)argl;
+
 	switch (cmd) {
 	case VIDIOCGCAP:
 		{
@@ -1809,24 +1806,23 @@ static int saa_ioctl(struct video_device *dev, unsigned int cmd, void *arg)
 	return 0;
 }
 
-static int saa_mmap(struct video_device *dev, const char *adr,
-		    unsigned long size)
+static int saa_mmap(struct file *file, struct vm_area_struct *vma)
 {
-	struct saa7146 *saa = (struct saa7146 *) dev;
+	struct saa7146 *saa = file->private_data;
 	printk(KERN_DEBUG "stradis%d: saa_mmap called\n", saa->nr);
 	return -EINVAL;
 }
 
-static long saa_read(struct video_device *dev, char *buf,
-		     unsigned long count, int nonblock)
+static ssize_t saa_read(struct file *file, char *buf,
+			size_t count, loff_t *ppos)
 {
 	return -EINVAL;
 }
 
-static long saa_write(struct video_device *dev, const char *buf,
-		      unsigned long count, int nonblock)
+static ssize_t saa_write(struct file *file, const char *buf,
+			 size_t count, loff_t *ppos)
 {
-	struct saa7146 *saa = (struct saa7146 *) dev;
+	struct saa7146 *saa = file->private_data;
 	unsigned long todo = count;
 	int blocksize, split;
 	unsigned long flags;
@@ -1945,11 +1941,23 @@ static long saa_write(struct video_device *dev, const char *buf,
 	return count;
 }
 
-static int saa_open(struct video_device *dev, int flags)
+static int saa_open(struct inode *inode, struct file *file)
 {
-	struct saa7146 *saa = (struct saa7146 *) dev;
+	struct saa7146 *saa = NULL;
+	unsigned int minor = minor(inode->i_rdev);
+	int i;
+
+	for (i = 0; i < SAA7146_MAX; i++) {
+		if (saa7146s[i].video_dev.minor == minor) {
+			saa = &saa7146s[i];
+		}
+	}
+	if (saa == NULL) {
+		return -ENODEV;
+	}
+	file->private_data = saa;
 
-	saa->video_dev.busy = 0;
+	//saa->video_dev.busy = 0; /* old hack to support multiple open */
 	saa->user++;
 	if (saa->user > 1)
 		return 0;	/* device open already, don't reset */
@@ -1957,31 +1965,39 @@ static int saa_open(struct video_device *dev, int flags)
 	return 0;
 }
 
-static void saa_close(struct video_device *dev)
+static int saa_release(struct inode *inode, struct file *file)
 {
-	struct saa7146 *saa = (struct saa7146 *) dev;
+	struct saa7146 *saa = file->private_data;
 	saa->user--;
-	saa->video_dev.busy = 0;
+	//saa->video_dev.busy = 0; /* old hack to support multiple open */
 	if (saa->user > 0)	/* still someone using device */
-		return;
+		return 0;
 	saawrite(0x007f0000, SAA7146_MC1);	/* stop all overlay dma */
+	return 0;
 }
 
-/* template for video_device-structure */
-static struct video_device saa_template =
+static struct file_operations saa_fops =
 {
 	.owner		= THIS_MODULE,
-	.name		= "SAA7146A",
-	.type		= VID_TYPE_CAPTURE | VID_TYPE_OVERLAY,
-	.hardware	= VID_HARDWARE_SAA7146,
 	.open		= saa_open,
-	.close		= saa_close,
+	.release	= saa_release,
+	.ioctl		= saa_ioctl,
 	.read		= saa_read,
+	.llseek		= no_llseek,
 	.write		= saa_write,
-	.ioctl		= saa_ioctl,
 	.mmap		= saa_mmap,
 };
 
+/* template for video_device-structure */
+static struct video_device saa_template =
+{
+	.name		= "SAA7146A",
+	.type		= VID_TYPE_CAPTURE | VID_TYPE_OVERLAY,
+	.hardware	= VID_HARDWARE_SAA7146,
+	.fops		= &saa_fops,
+	.minor		= -1,
+};
+
 static int configure_saa7146(struct pci_dev *dev, int num)
 {
 	int result;

drivers/net/Kconfig

@@ -212,6 +212,14 @@ config NET_ETHERNET
 	  kernel: saying N will just cause the configurator to skip all
 	  the questions about Ethernet network cards. If unsure, say N.
 
+config MII
+	tristate "generic Media Independent Interface device support"
+	depends on NET_ETHERNET
+	help
+	  Most ethernet controllers have MII transceiver either as an external
+	  or internal device.  It is safe to say Y or M here even if your
+	  ethernet card lack MII.
+
 config ARM_AM79C961A
 	bool "ARM EBSA110 AM79C961A support"
 	depends on NET_ETHERNET && ARM && ARCH_EBSA110

drivers/net/Makefile

@@ -57,6 +57,7 @@ obj-$(CONFIG_ADAPTEC_STARFIRE) += starfire.o mii.o
 # end link order section
 #
 
+obj-$(CONFIG_MII) += mii.o
 obj-$(CONFIG_AIRONET4500) 	+= aironet4500_core.o
 obj-$(CONFIG_AIRONET4500_CS) 	+= aironet4500_core.o
 obj-$(CONFIG_AIRONET4500_NONCS)  += aironet4500_card.o
@@ -193,3 +194,6 @@ obj-$(CONFIG_NET_WIRELESS) += wireless/
 obj-$(CONFIG_NET_TULIP) += tulip/
 obj-$(CONFIG_HAMRADIO) += hamradio/
 obj-$(CONFIG_IRDA) += irda/
+
+
+include $(TOPDIR)/drivers/usb/net/Makefile.mii

drivers/scsi/pcmcia/aha152x_stub.c

@@ -351,7 +351,7 @@ static void aha152x_release_cs(u_long arg)
 
     DEBUG(0, "aha152x_release_cs(0x%p)\n", link);
 
-#warning This doesn't protect you.  You need some real fix for your races.
+#warning This does not protect you.  You need some real fix for your races.
 #if 0
     if (GET_USE_COUNT(driver_template.module) != 0) {
 	DEBUG(1, "aha152x_cs: release postponed, "

drivers/scsi/pcmcia/fdomain_stub.c

@@ -314,7 +314,7 @@ static void fdomain_release(u_long arg)
 
     DEBUG(0, "fdomain_release(0x%p)\n", link);
 
-#warning This doesn't protect you.  You need some real fix for your races.
+#warning This does not protect you.  You need some real fix for your races.
 #if 0
     if (GET_USE_COUNT(&__this_module) != 0) {
 	DEBUG(1, "fdomain_cs: release postponed, "

drivers/scsi/pcmcia/qlogic_stub.c

@@ -330,7 +330,7 @@ static void qlogic_release(u_long arg)
 
 	DEBUG(0, "qlogic_release(0x%p)\n", link);
 
-#warning This doesn't protect you.  You need some real fix for your races.
+#warning This does not protect you.  You need some real fix for your races.
 #if 0
 	if (GET_USE_COUNT(&__this_module) != 0) {
 		DEBUG(0, "qlogic_cs: release postponed, device still open\n");

drivers/scsi/scsi_error.c

@@ -1594,6 +1594,7 @@ void scsi_error_handler(void *data)
 	 */
 
 	sprintf(current->comm, "scsi_eh_%d", shost->host_no);
+	current->flags |= PF_IOTHREAD;
 
 	shost->eh_wait = &sem;
 	shost->ehandler = current;

drivers/usb/class/cdc-acm.c

@@ -257,7 +257,7 @@ static void acm_read_bulk(struct urb *urb, struct pt_regs *regs)
 	if (urb->status)
 		dbg("nonzero read bulk status received: %d", urb->status);
 
-	if (!urb->status & !acm->throttle)  {
+	if (!urb->status && !acm->throttle)  {
 		for (i = 0; i < urb->actual_length && !acm->throttle; i++) {
 			/* if we insert more than TTY_FLIPBUF_SIZE characters,
 			 * we drop them. */
@@ -697,6 +697,7 @@ static void acm_disconnect(struct usb_interface *intf)
 
 static struct usb_device_id acm_ids[] = {
 	{ USB_DEVICE_INFO(USB_CLASS_COMM, 0, 0) },
+	{ USB_DEVICE_INFO(USB_CLASS_COMM, 2, 0) },
 	{ }
 };
 

drivers/usb/core/devices.c

@@ -68,7 +68,7 @@
 
 static char *format_topo =
 /* T:  Bus=dd Lev=dd Prnt=dd Port=dd Cnt=dd Dev#=ddd Spd=ddd MxCh=dd */
-  "T:  Bus=%2.2d Lev=%2.2d Prnt=%2.2d Port=%2.2d Cnt=%2.2d Dev#=%3d Spd=%3s MxCh=%2d\n";
+"\nT:  Bus=%2.2d Lev=%2.2d Prnt=%2.2d Port=%2.2d Cnt=%2.2d Dev#=%3d Spd=%3s MxCh=%2d\n";
 
 static char *format_string_manufacturer =
 /* S:  Manufacturer=xxxx */

drivers/usb/core/hcd.c

@@ -310,9 +310,9 @@ static int rh_string (
 	} else
 	    return 0;
 
-	data [0] = 2 + ascii2utf (buf, data + 2, len - 2);
+	data [0] = 2 * (strlen (buf) + 1);
 	data [1] = 3;	/* type == string */
-	return data [0];
+	return 2 + ascii2utf (buf, data + 2, len - 2);
 }
 
 
@@ -1029,8 +1029,11 @@ static int hcd_submit_urb (struct urb *urb, int mem_flags)
 		return status;
 	}
 
-	/* lower level hcd code should use *_dma exclusively */
-	if (!(urb->transfer_flags & URB_NO_DMA_MAP)) {
+	/* lower level hcd code should use *_dma exclusively,
+	 * unless it uses pio or talks to another transport.
+	 */
+	if (!(urb->transfer_flags & URB_NO_DMA_MAP)
+			&& hcd->controller->dma_mask) {
 		if (usb_pipecontrol (urb->pipe))
 			urb->setup_dma = dma_map_single (
 					hcd->controller,

drivers/usb/core/hcd.h

@@ -111,6 +111,13 @@ struct usb_hcd {	/* usb_bus.hcpriv points to this */
 	 */
 };
 
+/* 2.4 does this a bit differently ... */
+static inline struct usb_bus *hcd_to_bus (struct usb_hcd *hcd)
+{
+	return &hcd->self;
+}
+
+
 struct hcd_dev {	/* usb_device.hcpriv points to this */
 	struct list_head	dev_list;	/* on this hcd */
 	struct list_head	urb_list;	/* pending on this dev */
@@ -343,6 +350,13 @@ extern void usb_deregister_bus (struct usb_bus *);
 extern int usb_register_root_hub (struct usb_device *usb_dev,
 		struct device *parent_dev);
 
+/* for portability to 2.4, hcds should call this */
+static inline int hcd_register_root (struct usb_hcd *hcd)
+{
+	return usb_register_root_hub (
+		hcd_to_bus (hcd)->root_hub, hcd->controller);
+}
+
 /*-------------------------------------------------------------------------*/
 
 /* exported only within usbcore */

drivers/usb/core/message.c

@@ -206,7 +206,8 @@ static void sg_clean (struct usb_sg_request *io)
 		kfree (io->urbs);
 		io->urbs = 0;
 	}
-	usb_buffer_unmap_sg (io->dev, io->pipe, io->sg, io->nents);
+	if (io->dev->dev.dma_mask != 0)
+		usb_buffer_unmap_sg (io->dev, io->pipe, io->sg, io->nents);
 	io->dev = 0;
 }
 
@@ -301,6 +302,7 @@ int usb_sg_init (
 {
 	int			i;
 	int			urb_flags;
+	int			dma;
 
 	if (!io || !dev || !sg
 			|| usb_pipecontrol (pipe)
@@ -314,8 +316,16 @@ int usb_sg_init (
 	io->sg = sg;
 	io->nents = nents;
 
+	/* not all host controllers use DMA (like the mainstream pci ones);
+	 * they can use PIO (sl811) or be software over another transport.
+	 */
+	dma = (dev->dev.dma_mask != 0);
+	if (dma)
+		io->entries = usb_buffer_map_sg (dev, pipe, sg, nents);
+	else
+		io->entries = nents;
+
 	/* initialize all the urbs we'll use */
-	io->entries = usb_buffer_map_sg (dev, pipe, sg, nents);
 	if (io->entries <= 0)
 		return io->entries;
 
@@ -347,8 +357,17 @@ int usb_sg_init (
 		io->urbs [i]->status = -EINPROGRESS;
 		io->urbs [i]->actual_length = 0;
 
-		io->urbs [i]->transfer_dma = sg_dma_address (sg + i);
-		len = sg_dma_len (sg + i);
+		if (dma) {
+			/* hc may use _only_ transfer_dma */
+			io->urbs [i]->transfer_dma = sg_dma_address (sg + i);
+			len = sg_dma_len (sg + i);
+		} else {
+			/* hc may use _only_ transfer_buffer */
+			io->urbs [i]->transfer_buffer =
+				page_address (sg [i].page) + sg [i].offset;
+			len = sg [i].length;
+		}
+
 		if (length) {
 			len = min_t (unsigned, len, length);
 			length -= len;
@@ -434,9 +453,7 @@ void usb_sg_wait (struct usb_sg_request *io)
 			retval = 0;
 			i--;
 			// FIXME:  should it usb_sg_cancel() on INTERRUPT?
-			// how about imposing a backoff?
-			set_current_state (TASK_UNINTERRUPTIBLE);
-			schedule ();
+			yield ();
 			break;
 
 			/* no error? continue immediately.

drivers/usb/core/usb.c

@@ -1224,7 +1224,8 @@ void usb_buffer_free (
  *
  * Return value is either null (indicating no buffer could be mapped), or
  * the parameter.  URB_NO_DMA_MAP is added to urb->transfer_flags if the
- * operation succeeds.
+ * operation succeeds.  If the device is connected to this system through
+ * a non-DMA controller, this operation always succeeds.
  *
  * This call would normally be used for an urb which is reused, perhaps
  * as the target of a large periodic transfer, with usb_buffer_dmasync()
@@ -1245,12 +1246,15 @@ struct urb *usb_buffer_map (struct urb *urb)
 			|| !(controller = bus->controller))
 		return 0;
 
-	urb->transfer_dma = dma_map_single (controller,
+	if (controller->dma_mask) {
+		urb->transfer_dma = dma_map_single (controller,
 			urb->transfer_buffer, urb->transfer_buffer_length,
 			usb_pipein (urb->pipe)
 				? DMA_FROM_DEVICE : DMA_TO_DEVICE);
 	// FIXME generic api broken like pci, can't report errors
 	// if (urb->transfer_dma == DMA_ADDR_INVALID) return 0;
+	} else
+		urb->transfer_dma = ~0;
 	urb->transfer_flags |= URB_NO_DMA_MAP;
 	return urb;
 }
@@ -1271,7 +1275,8 @@ void usb_buffer_dmasync (struct urb *urb)
 			|| !(controller = bus->controller))
 		return;
 
-	dma_sync_single (controller,
+	if (controller->dma_mask)
+		dma_sync_single (controller,
 			urb->transfer_dma, urb->transfer_buffer_length,
 			usb_pipein (urb->pipe)
 				? DMA_FROM_DEVICE : DMA_TO_DEVICE);
@@ -1295,10 +1300,12 @@ void usb_buffer_unmap (struct urb *urb)
 			|| !(controller = bus->controller))
 		return;
 
-	dma_unmap_single (controller,
+	if (controller->dma_mask)
+		dma_unmap_single (controller,
 			urb->transfer_dma, urb->transfer_buffer_length,
 			usb_pipein (urb->pipe)
 				? DMA_FROM_DEVICE : DMA_TO_DEVICE);
+	urb->transfer_flags &= ~URB_NO_DMA_MAP;
 }
 
 /**
@@ -1336,7 +1343,8 @@ int usb_buffer_map_sg (struct usb_device *dev, unsigned pipe,
 	if (!dev
 			|| usb_pipecontrol (pipe)
 			|| !(bus = dev->bus)
-			|| !(controller = bus->controller))
+			|| !(controller = bus->controller)
+			|| !controller->dma_mask)
 		return -1;
 
 	// FIXME generic api broken like pci, can't report errors
@@ -1362,7 +1370,8 @@ void usb_buffer_dmasync_sg (struct usb_device *dev, unsigned pipe,
 
 	if (!dev
 			|| !(bus = dev->bus)
-			|| !(controller = bus->controller))
+			|| !(controller = bus->controller)
+			|| !controller->dma_mask)
 		return;
 
 	dma_sync_sg (controller, sg, n_hw_ents,
@@ -1386,7 +1395,8 @@ void usb_buffer_unmap_sg (struct usb_device *dev, unsigned pipe,
 
 	if (!dev
 			|| !(bus = dev->bus)
-			|| !(controller = bus->controller))
+			|| !(controller = bus->controller)
+			|| !controller->dma_mask)
 		return;
 
 	dma_unmap_sg (controller, sg, n_hw_ents,

drivers/usb/host/ehci-dbg.c

@@ -277,7 +277,26 @@ static inline void remove_debug_files (struct ehci_hcd *bus) { }
 		default: tmp = '?'; break; \
 		}; tmp; })
 
-static void qh_lines (struct ehci_qh *qh, char **nextp, unsigned *sizep)
+static inline char token_mark (u32 token)
+{
+	token = le32_to_cpu (token);
+	if (token & QTD_STS_ACTIVE)
+		return '*';
+	if (token & QTD_STS_HALT)
+		return '-';
+	if (QTD_PID (token) != 1 /* not IN: OUT or SETUP */
+			|| QTD_LENGTH (token) == 0)
+		return ' ';
+	/* tries to advance through hw_alt_next */
+	return '/';
+}
+
+static void qh_lines (
+	struct ehci_hcd *ehci,
+	struct ehci_qh *qh,
+	char **nextp,
+	unsigned *sizep
+)
 {
 	u32			scratch;
 	u32			hw_curr;
@@ -286,26 +305,49 @@ static void qh_lines (struct ehci_qh *qh, char **nextp, unsigned *sizep)
 	unsigned		temp;
 	unsigned		size = *sizep;
 	char			*next = *nextp;
-
+	char			mark;
+
+	mark = token_mark (qh->hw_token);
+	if (mark == '/') {	/* qh_alt_next controls qh advance? */
+		if ((qh->hw_alt_next & QTD_MASK) == ehci->async->hw_alt_next)
+			mark = '#';	/* blocked */
+		else if (qh->hw_alt_next & cpu_to_le32 (0x01))
+			mark = '.';	/* use hw_qtd_next */
+		/* else alt_next points to some other qtd */
+	}
 	scratch = cpu_to_le32p (&qh->hw_info1);
-	hw_curr = cpu_to_le32p (&qh->hw_current);
+	hw_curr = (mark == '*') ? cpu_to_le32p (&qh->hw_current) : 0;
 	temp = snprintf (next, size,
-			"qh/%p dev%d %cs ep%d %08x %08x (%08x %08x)",
+			"qh/%p dev%d %cs ep%d %08x %08x (%08x%c %s nak%d)",
 			qh, scratch & 0x007f,
 			speed_char (scratch),
 			(scratch >> 8) & 0x000f,
 			scratch, cpu_to_le32p (&qh->hw_info2),
-			hw_curr, cpu_to_le32p (&qh->hw_token));
+			cpu_to_le32p (&qh->hw_token), mark,
+			(cpu_to_le32 (0x8000000) & qh->hw_token)
+				? "data0" : "data1",
+			(cpu_to_le32p (&qh->hw_alt_next) >> 1) & 0x0f);
 	size -= temp;
 	next += temp;
 
+	/* hc may be modifying the list as we read it ... */
 	list_for_each (entry, &qh->qtd_list) {
 		td = list_entry (entry, struct ehci_qtd, qtd_list);
 		scratch = cpu_to_le32p (&td->hw_token);
+		mark = ' ';
+		if (hw_curr == td->qtd_dma)
+			mark = '*';
+		else if (qh->hw_qtd_next == td->qtd_dma)
+			mark = '+';
+		else if (QTD_LENGTH (scratch)) {
+			if (td->hw_alt_next == ehci->async->hw_alt_next)
+				mark = '#';
+			else if (td->hw_alt_next != EHCI_LIST_END)
+				mark = '/';
+		}
 		temp = snprintf (next, size,
-				"\n\t%std/%p %s len=%d %08x urb %p",
-				(hw_curr == td->qtd_dma) ? "*" : "",
-				td, ({ char *tmp;
+				"\n\t%p%c%s len=%d %08x urb %p",
+				td, mark, ({ char *tmp;
 				 switch ((scratch>>8)&0x03) {
 				 case 0: tmp = "out"; break;
 				 case 1: tmp = "in"; break;
@@ -315,13 +357,27 @@ static void qh_lines (struct ehci_qh *qh, char **nextp, unsigned *sizep)
 				(scratch >> 16) & 0x7fff,
 				scratch,
 				td->urb);
+		if (temp < 0)
+			temp = 0;
+		else if (size < temp)
+			temp = size;
 		size -= temp;
 		next += temp;
+		if (temp == size)
+			goto done;
 	}
 
 	temp = snprintf (next, size, "\n");
-	*sizep = size - temp;
-	*nextp = next + temp;
+	if (temp < 0)
+		temp = 0;
+	else if (size < temp)
+		temp = size;
+	size -= temp;
+	next += temp;
+
+done:
+	*sizep = size;
+	*nextp = next;
 }
 
 static ssize_t
@@ -344,14 +400,15 @@ show_async (struct device *dev, char *buf)
 	 * one QH per line, and TDs we know about
 	 */
 	spin_lock_irqsave (&ehci->lock, flags);
-	for (qh = ehci->async->qh_next.qh; qh; qh = qh->qh_next.qh)
-		qh_lines (qh, &next, &size);
-	if (ehci->reclaim) {
+	for (qh = ehci->async->qh_next.qh; size > 0 && qh; qh = qh->qh_next.qh)
+		qh_lines (ehci, qh, &next, &size);
+	if (ehci->reclaim && size > 0) {
 		temp = snprintf (next, size, "\nreclaim =\n");
 		size -= temp;
 		next += temp;
 
-		qh_lines (ehci->reclaim, &next, &size);
+		for (qh = ehci->reclaim; size > 0 && qh; qh = qh->reclaim)
+			qh_lines (ehci, qh, &next, &size);
 	}
 	spin_unlock_irqrestore (&ehci->lock, flags);
 
@@ -421,7 +478,7 @@ show_periodic (struct device *dev, char *buf)
 						scratch & 0x007f,
 						(scratch >> 8) & 0x000f,
 						p.qh->usecs, p.qh->c_usecs,
-						scratch >> 16);
+						0x7ff & (scratch >> 16));
 
 					/* FIXME TD info too */
 
@@ -490,7 +547,8 @@ show_registers (struct device *dev, char *buf)
 
 	/* Capability Registers */
 	i = readw (&ehci->caps->hci_version);
-	temp = snprintf (next, size, "EHCI %x.%02x, hcd state %d\n",
+	temp = snprintf (next, size,
+		"EHCI %x.%02x, hcd state %d (version " DRIVER_VERSION ")\n",
 		i >> 8, i & 0x0ff, ehci->hcd.state);
 	size -= temp;
 	next += temp;

drivers/usb/host/ehci-hcd.c

@@ -94,7 +94,7 @@
  * 2001-June	Works with usb-storage and NEC EHCI on 2.4
  */
 
-#define DRIVER_VERSION "2002-Nov-29"
+#define DRIVER_VERSION "2003-Jan-22"
 #define DRIVER_AUTHOR "David Brownell"
 #define DRIVER_DESC "USB 2.0 'Enhanced' Host Controller (EHCI) Driver"
 
@@ -110,10 +110,11 @@ static const char	hcd_name [] = "ehci-hcd";
 
 /* magic numbers that can affect system performance */
 #define	EHCI_TUNE_CERR		3	/* 0-3 qtd retries; 0 == don't stop */
-#define	EHCI_TUNE_RL_HS		0	/* nak throttle; see 4.9 */
+#define	EHCI_TUNE_RL_HS		4	/* nak throttle; see 4.9 */
 #define	EHCI_TUNE_RL_TT		0
 #define	EHCI_TUNE_MULT_HS	1	/* 1-3 transactions/uframe; 4.10.3 */
 #define	EHCI_TUNE_MULT_TT	1
+#define	EHCI_TUNE_FLS		2	/* (small) 256 frame schedule */
 
 #define EHCI_WATCHDOG_JIFFIES	(HZ/100)	/* arbitrary; ~10 msec */
 #define EHCI_ASYNC_JIFFIES	(HZ/20)		/* async idle timeout */
@@ -416,13 +417,26 @@ static int ehci_start (struct usb_hcd *hcd)
 			ehci_info (ehci, "enabled 64bit PCI DMA\n");
 	}
 
+	/* help hc dma work well with cachelines */
+	pci_set_mwi (ehci->hcd.pdev);
+
 	/* clear interrupt enables, set irq latency */
 	temp = readl (&ehci->regs->command) & 0xff;
 	if (log2_irq_thresh < 0 || log2_irq_thresh > 6)
 		log2_irq_thresh = 0;
 	temp |= 1 << (16 + log2_irq_thresh);
 	// if hc can park (ehci >= 0.96), default is 3 packets per async QH 
-	// keeping default periodic framelist size
+	if (HCC_PGM_FRAMELISTLEN (hcc_params)) {
+		/* periodic schedule size can be smaller than default */
+		temp &= ~(3 << 2);
+		temp |= (EHCI_TUNE_FLS << 2);
+		switch (EHCI_TUNE_FLS) {
+		case 0: ehci->periodic_size = 1024; break;
+		case 1: ehci->periodic_size = 512; break;
+		case 2: ehci->periodic_size = 256; break;
+		default:	BUG ();
+		}
+	}
 	temp &= ~(CMD_IAAD | CMD_ASE | CMD_PSE),
 	// Philips, Intel, and maybe others need CMD_RUN before the
 	// root hub will detect new devices (why?); NEC doesn't
@@ -759,7 +773,6 @@ static int ehci_urb_dequeue (struct usb_hcd *hcd, struct urb *urb)
 	struct ehci_hcd		*ehci = hcd_to_ehci (hcd);
 	struct ehci_qh		*qh;
 	unsigned long		flags;
-	int			maybe_irq = 1;
 
 	spin_lock_irqsave (&ehci->lock, flags);
 	switch (usb_pipetype (urb->pipe)) {
@@ -769,23 +782,23 @@ static int ehci_urb_dequeue (struct usb_hcd *hcd, struct urb *urb)
 		qh = (struct ehci_qh *) urb->hcpriv;
 		if (!qh)
 			break;
-		while (qh->qh_state == QH_STATE_LINKED
+
+		/* if we need to use IAA and it's busy, defer */
+		if (qh->qh_state == QH_STATE_LINKED
 				&& ehci->reclaim
 				&& HCD_IS_RUNNING (ehci->hcd.state)
 				) {
-			spin_unlock_irqrestore (&ehci->lock, flags);
+			struct ehci_qh		*last;
 
-			if (maybe_irq) {
-				if (in_interrupt ())
-					return -EAGAIN;
-				maybe_irq = 0;
-			}
-			/* let pending unlinks complete, so this can start */
-			wait_ms (1);
+			for (last = ehci->reclaim;
+					last->reclaim;
+					last = last->reclaim)
+				continue;
+			qh->qh_state = QH_STATE_UNLINK_WAIT;
+			last->reclaim = qh;
 
-			spin_lock_irqsave (&ehci->lock, flags);
-		}
-		if (!HCD_IS_RUNNING (ehci->hcd.state) && ehci->reclaim)
+		/* bypass IAA if the hc can't care */
+		} else if (!HCD_IS_RUNNING (ehci->hcd.state) && ehci->reclaim)
 			end_unlink_async (ehci, NULL);
 
 		/* something else might have unlinked the qh by now */

drivers/usb/host/ehci-mem.c

@@ -75,8 +75,6 @@ static struct ehci_qtd *ehci_qtd_alloc (struct ehci_hcd *ehci, int flags)
 	qtd = pci_pool_alloc (ehci->qtd_pool, flags, &dma);
 	if (qtd != 0) {
 		ehci_qtd_init (qtd, dma);
-		if (ehci->async)
-			qtd->hw_alt_next = ehci->async->hw_alt_next;
 	}
 	return qtd;
 }

drivers/usb/host/ehci.h

@@ -236,12 +236,12 @@ struct ehci_qtd {
 	/* the rest is HCD-private */
 	dma_addr_t		qtd_dma;		/* qtd address */
 	struct list_head	qtd_list;		/* sw qtd list */
-
-	/* dma same in urb's qtds, except 1st control qtd (setup buffer) */
 	struct urb		*urb;			/* qtd's urb */
 	size_t			length;			/* length of buffer */
 } __attribute__ ((aligned (32)));
 
+#define QTD_MASK cpu_to_le32 (~0x1f)	/* mask NakCnt+T in qh->hw_alt_next */
+
 /*-------------------------------------------------------------------------*/
 
 /* type tag from {qh,itd,sitd,fstn}->hw_next */
@@ -305,6 +305,7 @@ struct ehci_qh {
 	union ehci_shadow	qh_next;	/* ptr to qh; or periodic */
 	struct list_head	qtd_list;	/* sw qtd list */
 	struct ehci_qtd		*dummy;
+	struct ehci_qh		*reclaim;	/* next to reclaim */
 
 	atomic_t		refcount;
 	unsigned		stamp;
@@ -313,6 +314,8 @@ struct ehci_qh {
 #define	QH_STATE_LINKED		1		/* HC sees this */
 #define	QH_STATE_UNLINK		2		/* HC may still see this */
 #define	QH_STATE_IDLE		3		/* HC doesn't see this */
+#define	QH_STATE_UNLINK_WAIT	4		/* LINKED and on reclaim q */
+#define	QH_STATE_COMPLETING	5		/* don't touch token.HALT */
 
 	/* periodic schedule info */
 	u8			usecs;		/* intr bandwidth */
@@ -426,16 +429,6 @@ static inline int hcd_register_root (struct usb_hcd *hcd)
 
 #else	/* LINUX_VERSION_CODE */
 
-// hcd_to_bus() eventually moves to hcd.h on 2.5 too
-static inline struct usb_bus *hcd_to_bus (struct usb_hcd *hcd)
-	{ return &hcd->self; }
-// ... as does hcd_register_root()
-static inline int hcd_register_root (struct usb_hcd *hcd)
-{
-	return usb_register_root_hub (
-		hcd_to_bus (hcd)->root_hub, &hcd->pdev->dev);
-}
-
 #define SUBMIT_URB(urb,mem_flags) usb_submit_urb(urb,mem_flags)
 
 #ifndef DEBUG

drivers/usb/host/hc_simple.c

@@ -219,7 +219,7 @@ static int hci_unlink_urb (struct urb * urb)
 	if (!list_empty (&urb->urb_list) && urb->status == -EINPROGRESS) {
 		/* URB active? */
 
-		if (urb->transfer_flags & (URB_ASYNC_UNLINK | URB_TIMEOUT_KILLED)) {
+		if (urb->transfer_flags & URB_ASYNC_UNLINK) {
 			/* asynchronous with callback */
 			/* relink the urb to the del list */
 			list_move (&urb->urb_list, &hci->del_list);
@@ -388,7 +388,6 @@ static void qu_urb_timeout (unsigned long lurb)
 	struct urb *urb = (struct urb *) lurb;
 
 	DBGFUNC ("enter qu_urb_timeout\n");
-	urb->transfer_flags |= URB_TIMEOUT_KILLED;
 	hci_unlink_urb (urb);
 }
 #endif

drivers/usb/host/ohci-hcd.c

@@ -203,28 +203,28 @@ static int ohci_urb_enqueue (
 		return -ENOMEM;
 	memset (urb_priv, 0, sizeof (urb_priv_t) + size * sizeof (struct td *));
 	
-	spin_lock_irqsave (&ohci->lock, flags);
-
-	/* don't submit to a dead HC */
-	if (ohci->disabled || ohci->sleeping) {
-		retval = -ENODEV;
-		goto fail;
-	}
-
 	/* fill the private part of the URB */
 	urb_priv->length = size;
 	urb_priv->ed = ed;	
 
-	/* allocate the TDs (updating hash chains) */
+	/* allocate the TDs (deferring hash chain updates) */
 	for (i = 0; i < size; i++) {
-		urb_priv->td [i] = td_alloc (ohci, SLAB_ATOMIC);
+		urb_priv->td [i] = td_alloc (ohci, mem_flags);
 		if (!urb_priv->td [i]) {
 			urb_priv->length = i;
-			retval = -ENOMEM;
-			goto fail;
+			urb_free_priv (ohci, urb_priv);
+			return -ENOMEM;
 		}
 	}	
 
+	spin_lock_irqsave (&ohci->lock, flags);
+
+	/* don't submit to a dead HC */
+	if (ohci->disabled || ohci->sleeping) {
+		retval = -ENODEV;
+		goto fail;
+	}
+
 	/* schedule the ed if needed */
 	if (ed->state == ED_IDLE) {
 		retval = ed_schedule (ohci, ed);

drivers/usb/host/ohci-mem.c

@@ -97,17 +97,11 @@ td_alloc (struct ohci_hcd *hc, int mem_flags)
 
 	td = pci_pool_alloc (hc->td_cache, mem_flags, &dma);
 	if (td) {
-		int	hash;
-
 		/* in case hc fetches it, make it look dead */
 		memset (td, 0, sizeof *td);
 		td->hwNextTD = cpu_to_le32 (dma);
 		td->td_dma = dma;
-
-		/* hash it for later reverse mapping */
-		hash = TD_HASH_FUNC (dma);
-		td->td_hash = hc->td_hash [hash];
-		hc->td_hash [hash] = td;
+		/* hashed in td_fill */
 	}
 	return td;
 }

drivers/usb/host/ohci-q.c

@@ -463,13 +463,14 @@ static void start_urb_unlink (struct ohci_hcd *ohci, struct ed *ed)
 /* enqueue next TD for this URB (OHCI spec 5.2.8.2) */
 
 static void
-td_fill (unsigned int info,
+td_fill (struct ohci_hcd *ohci, u32 info,
 	dma_addr_t data, int len,
 	struct urb *urb, int index)
 {
 	struct td		*td, *td_pt;
 	struct urb_priv		*urb_priv = urb->hcpriv;
 	int			is_iso = info & TD_ISO;
+	int			hash;
 
 	// ASSERT (index < urb_priv->length);
 
@@ -516,11 +517,16 @@ td_fill (unsigned int info,
 		td->hwBE = 0;
 	td->hwNextTD = cpu_to_le32 (td_pt->td_dma);
 
-	/* HC might read the TD right after we link it ... */
-	wmb ();
-
 	/* append to queue */
 	list_add_tail (&td->td_list, &td->ed->td_list);
+
+	/* hash it for later reverse mapping */
+	hash = TD_HASH_FUNC (td->td_dma);
+	td->td_hash = ohci->td_hash [hash];
+	ohci->td_hash [hash] = td;
+
+	/* HC might read the TD (or cachelines) right away ... */
+	wmb ();
 	td->ed->hwTailP = td->hwNextTD;
 }
 
@@ -578,7 +584,7 @@ static void td_submit_urb (
 			: TD_T_TOGGLE | TD_CC | TD_DP_IN;
 		/* TDs _could_ transfer up to 8K each */
 		while (data_len > 4096) {
-			td_fill (info, data, 4096, urb, cnt);
+			td_fill (ohci, info, data, 4096, urb, cnt);
 			data += 4096;
 			data_len -= 4096;
 			cnt++;
@@ -586,11 +592,11 @@ static void td_submit_urb (
 		/* maybe avoid ED halt on final TD short read */
 		if (!(urb->transfer_flags & URB_SHORT_NOT_OK))
 			info |= TD_R;
-		td_fill (info, data, data_len, urb, cnt);
+		td_fill (ohci, info, data, data_len, urb, cnt);
 		cnt++;
 		if ((urb->transfer_flags & URB_ZERO_PACKET)
 				&& cnt < urb_priv->length) {
-			td_fill (info, 0, 0, urb, cnt);
+			td_fill (ohci, info, 0, 0, urb, cnt);
 			cnt++;
 		}
 		/* maybe kickstart bulk list */
@@ -605,17 +611,17 @@ static void td_submit_urb (
 	 */
 	case PIPE_CONTROL:
 		info = TD_CC | TD_DP_SETUP | TD_T_DATA0;
-		td_fill (info, urb->setup_dma, 8, urb, cnt++);
+		td_fill (ohci, info, urb->setup_dma, 8, urb, cnt++);
 		if (data_len > 0) {
 			info = TD_CC | TD_R | TD_T_DATA1;
 			info |= is_out ? TD_DP_OUT : TD_DP_IN;
 			/* NOTE:  mishandles transfers >8K, some >4K */
-			td_fill (info, data, data_len, urb, cnt++);
+			td_fill (ohci, info, data, data_len, urb, cnt++);
 		}
 		info = is_out
 			? TD_CC | TD_DP_IN | TD_T_DATA1
 			: TD_CC | TD_DP_OUT | TD_T_DATA1;
-		td_fill (info, data, 0, urb, cnt++);
+		td_fill (ohci, info, data, 0, urb, cnt++);
 		/* maybe kickstart control list */
 		wmb ();
 		writel (OHCI_CLF, &ohci->regs->cmdstatus);
@@ -634,7 +640,7 @@ static void td_submit_urb (
 			// a 2^16 iso range, vs other HCs max of 2^10)
 			frame += cnt * urb->interval;
 			frame &= 0xffff;
-			td_fill (TD_CC | TD_ISO | frame,
+			td_fill (ohci, TD_CC | TD_ISO | frame,
 				data + urb->iso_frame_desc [cnt].offset,
 				urb->iso_frame_desc [cnt].length, urb, cnt);
 		}

drivers/usb/host/uhci-hcd.c

@@ -1747,7 +1747,6 @@ static void stall_callback(unsigned long ptr)
 
 		tmp = tmp->next;
 
-		u->transfer_flags |= URB_TIMEOUT_KILLED;
 		uhci_urb_dequeue(hcd, u);
 	}
 

drivers/usb/image/scanner.c

 /* -*- linux-c -*- */
 
 /* 
- * Driver for USB Scanners (linux-2.5.54)
+ * Driver for USB Scanners (linux-2.5.60)
  *
  * Copyright (C) 1999, 2000, 2001, 2002 David E. Nelson
+ * Copyright (C) 2002, 2003 Henning Meier-Geinitz
  *
  * Portions may be copyright Brad Keryan and Michael Gee.
  *
- * Brian Beattie <beattie@beattie-home.net>
+ * Previously maintained by Brian Beattie
+ *
+ * Current maintainer: Henning Meier-Geinitz <henning@meier-geinitz.de>
  * 
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License as
@@ -300,8 +303,6 @@
  *      Frank Zago <fzago@greshamstorage.com> and
  *      Oliver Neukum <520047054719-0001@t-online.de> for reviewing/testing.
  *
- * 05/21/02 Currently maintained by Brian Beattie <beattie@beattie-home.net>
- *
  * 0.4.8  5/30/2002
  *    - Added Mustek BearPaw 2400 TA.  Thanks to Sergey
  *      Vlasov <vsu@mivlgu.murom.ru>.
@@ -332,12 +333,18 @@
  *      <oliver@neukum.name>.
  *
  * 0.4.10  01/07/2003
- *    - Added vendor/product ids for Visioneer scanners.
+ *    - Added vendor/product ids for Artec, Canon, Compaq, Epson, HP, Microtek 
+ *      and Visioneer scanners. Thanks to William Lam <wklam@triad.rr.com>,
+ *      Till Kamppeter <till.kamppeter@gmx.net> and others for all the ids.
+ *    - Cleaned up list of vendor/product ids.
  *    - Print information about user-supplied ids only once at startup instead
  *      of everytime any USB device is plugged in.
  *    - Removed PV8630 ioctls. Use the standard ioctls instead.
  *    - Made endpoint detection more generic. Basically, only one bulk-in 
  *      endpoint is required, everything else is optional.
+ *    - New maintainer: Henning Meier-Geinitz.
+ *    - Print ids and device number when a device was detected.
+ *    - Don't print errors when the device is busy.
  *      
  * TODO
  *    - Performance
@@ -360,7 +367,7 @@
  *    - All the developers that are working on USB SANE backends or other
  *      applications to use USB scanners.
  *    - Thanks to Greg KH <greg@kroah.com> for setting up Brian Beattie
- *      to be the new USB Scanner maintainer.
+ *      and Henning Meier-Geinitz to be the new USB Scanner maintainer.
  *
  *  Performance:
  *
@@ -369,6 +376,14 @@
  *      24 Bit Color ~ 70 secs - 3.6 Mbit/sec
  *       8 Bit Gray ~ 17 secs - 4.2 Mbit/sec */
 
+/*
+ * For documentation, see Documentation/usb/scanner.txt.
+ * Website: http://www.meier-geinitz.de/kernel/
+ * Please contact the maintainer if your scanner is not detected by this
+ * driver automatically.
+ */
+
+
 #include <asm/byteorder.h>
 
 /* 
@@ -461,7 +476,7 @@ open_scanner(struct inode * inode, struct file * file)
 	}
 
 	if (scn->isopen) {
-		err("open_scanner(%d): Scanner device is already open", scn_minor);
+		dbg("open_scanner(%d): Scanner device is already open", scn_minor);
 		err = -EBUSY;
 		goto out_error;
 	}
@@ -1047,6 +1062,9 @@ probe_scanner(struct usb_interface *intf,
 	if (scn->devfs == NULL)
 		dbg("scanner%d: device node registration failed", scn_minor);
 
+	info ("USB scanner device (0x%04x/0x%04x) now attached to %s",
+	      dev->descriptor.idVendor, dev->descriptor.idProduct, name);
+
 	up(&scn_mutex);
 
 	usb_set_intfdata(intf, scn);

drivers/usb/input/hid-core.c

@@ -1324,6 +1324,9 @@ void hid_init_reports(struct hid_device *hid)
 #define USB_DEVICE_ID_MGE_UPS          0xffff
 #define USB_DEVICE_ID_MGE_UPS1         0x0001
 
+#define USB_VENDOR_ID_ONTRAK		0x0a07
+#define USB_DEVICE_ID_ONTRAK_ADU100	0x0064
+
 struct hid_blacklist {
 	__u16 idVendor;
 	__u16 idProduct;
@@ -1359,6 +1362,12 @@ struct hid_blacklist {
 	{ USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_HIDDEV },
 	{ USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1, HID_QUIRK_HIDDEV },
 	{ USB_VENDOR_ID_TOPMAX, USB_DEVICE_ID_TOPMAX_COBRAPAD, HID_QUIRK_BADPAD },
+	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100, HID_QUIRK_IGNORE },
+	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100, HID_QUIRK_IGNORE },
+	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200, HID_QUIRK_IGNORE },
+	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300, HID_QUIRK_IGNORE },
+	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400, HID_QUIRK_IGNORE },
+	{ USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500, HID_QUIRK_IGNORE },
 	{ 0, 0 }
 };
 

drivers/usb/misc/atmsar.c

@@ -381,6 +381,83 @@ void atmsar_close (struct atmsar_vcc_data **list, struct atmsar_vcc_data *vcc)
  **
  ***********************/
 
+/* encapsulate in an AAL5 frame, which is then split into ATM cells */
+unsigned int atmsar_encode (struct atmsar_vcc_data *ctx, char *source, char *target, unsigned int pdu_length)
+{
+	unsigned int num_cells = (pdu_length + ATM_AAL5_TRAILER + ATM_CELL_PAYLOAD - 1) / ATM_CELL_PAYLOAD;
+	unsigned int num_pdu_cells = pdu_length / ATM_CELL_PAYLOAD + 1;
+	unsigned int aal5_length = num_cells * ATM_CELL_PAYLOAD;
+	unsigned int zero_padding = aal5_length - pdu_length - ATM_AAL5_TRAILER;
+	unsigned int final_length = num_cells * ATM_CELL_SIZE;
+	unsigned char aal5_trailer [ATM_AAL5_TRAILER];
+	unsigned char cell_header [ATM_CELL_HEADER];
+	u32 crc;
+	int i;
+
+	PDEBUG ("atmsar_encode entered\n");
+
+	PDEBUG ("pdu_length %d, num_cells %d, num_pdu_cells %d, aal5_length %d, zero_padding %d, final_length %d\n", pdu_length, num_cells, num_pdu_cells, aal5_length, zero_padding, final_length);
+
+	PDEBUG ("source 0x=%p, target 0x%p\n", source, target);
+
+	aal5_trailer [0] = 0; /* UU = 0 */
+	aal5_trailer [1] = 0; /* CPI = 0 */
+	aal5_trailer [2] = pdu_length >> 8;
+	aal5_trailer [3] = pdu_length;
+
+	crc = crc32 (~0, source, pdu_length);
+	for (i = 0; i < zero_padding; i++)
+		crc = CRC32 (0, crc);
+	crc = crc32 (crc, aal5_trailer, 4);
+	crc = ~crc;
+
+	aal5_trailer [4] = crc >> 24;
+	aal5_trailer [5] = crc >> 16;
+	aal5_trailer [6] = crc >> 8;
+	aal5_trailer [7] = crc;
+
+	cell_header [0] = ctx->atmHeader >> 24;
+	cell_header [1] = ctx->atmHeader >> 16;
+	cell_header [2] = ctx->atmHeader >> 8;
+	cell_header [3] = ctx->atmHeader;
+	cell_header [4] = 0xec;
+
+	for (i = 1; i < num_pdu_cells; i++) {
+		memcpy (target, cell_header, ATM_CELL_HEADER);
+		target += ATM_CELL_HEADER;
+		memcpy (target, source, ATM_CELL_PAYLOAD);
+		target += ATM_CELL_PAYLOAD;
+		source += ATM_CELL_PAYLOAD;
+		PDEBUG ("source 0x=%p, target 0x%p\n", source, target);
+	}
+	memcpy (target, cell_header, ATM_CELL_HEADER);
+	target += ATM_CELL_HEADER;
+	memcpy (target, source, pdu_length % ATM_CELL_PAYLOAD);
+	target += pdu_length % ATM_CELL_PAYLOAD;
+	if (num_pdu_cells < num_cells) {
+		memset (target, 0, zero_padding + ATM_AAL5_TRAILER - ATM_CELL_PAYLOAD);
+		target += zero_padding + ATM_AAL5_TRAILER - ATM_CELL_PAYLOAD;
+		memcpy (target, cell_header, ATM_CELL_HEADER);
+		target += ATM_CELL_HEADER;
+		zero_padding = ATM_CELL_PAYLOAD - ATM_AAL5_TRAILER;
+	}
+	memset (target, 0, zero_padding);
+	target += zero_padding;
+	memcpy (target, aal5_trailer, ATM_AAL5_TRAILER);
+
+	/* set pti bit in last cell */
+	*(target + ATM_AAL5_TRAILER + 3 - ATM_CELL_SIZE) |= 0x2;
+
+	/* update stats */
+	if (ctx->stats)
+		atomic_inc (&ctx->stats->tx);
+
+	if (ctx->stats && (ctx->type <= ATMSAR_TYPE_AAL1))
+		atomic_add (num_cells, &(ctx->stats->tx));
+
+	return final_length;
+}
+
 struct sk_buff *atmsar_encode_rawcell (struct atmsar_vcc_data *ctx, struct sk_buff *skb)
 {
 	int number_of_cells = (skb->len) / 48;
@@ -624,9 +701,8 @@ struct sk_buff *atmsar_decode_rawcell (struct atmsar_vcc_data *list, struct sk_b
 		} else {
 			/* If data is corrupt and skb doesn't hold a whole cell, flush the lot */
 			if (skb_pull (skb, (list->flags & ATMSAR_USE_53BYTE_CELL ? 53 : 52)) ==
-			    NULL) {
-				skb_trim (skb, 0);
-			}
+			    NULL)
+				return NULL;
 		}
 	}
 

drivers/usb/misc/atmsar.h

@@ -33,6 +33,7 @@
 #define ATMSAR_USE_53BYTE_CELL  0x1L
 #define ATMSAR_SET_PTI          0x2L
 
+#define ATM_CELL_HEADER		(ATM_CELL_SIZE - ATM_CELL_PAYLOAD)
 
 /* types */
 #define ATMSAR_TYPE_AAL0        ATM_AAL0
@@ -89,4 +90,6 @@ struct sk_buff *atmsar_decode_aal5 (struct atmsar_vcc_data *ctx, struct sk_buff
 
 struct sk_buff *atmsar_alloc_tx (struct atmsar_vcc_data *vcc, unsigned int size);
 
+unsigned int atmsar_encode (struct atmsar_vcc_data *ctx, char *source, char *target, unsigned int pdu_length);
+
 #endif				/* _ATMSAR_H_ */

drivers/usb/net/Makefile.mii

+#
+# Makefile for USB Network drivers which require generic MII code.
+#
+
+obj-$(CONFIG_USB_PEGASUS)	+= mii.o

drivers/usb/serial/ftdi_sio.c

@@ -135,6 +135,7 @@ static struct usb_device_id id_table_sio [] = {
    
 static struct usb_device_id id_table_8U232AM [] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
 	{ USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
 	{ }						/* Terminating entry */
 };
@@ -143,6 +144,7 @@ static struct usb_device_id id_table_8U232AM [] = {
 static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_SIO_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_8U232AM_PID) },
+	{ USB_DEVICE(FTDI_VID, FTDI_RELAIS_PID) },
 	{ USB_DEVICE(FTDI_NF_RIC_VID, FTDI_NF_RIC_PID) },
 	{ }						/* Terminating entry */
 };

drivers/usb/serial/ftdi_sio.h

@@ -17,11 +17,14 @@
  * Bill Ryder - bryder@sgi.com of Silicon Graphics, Inc.- wrote the 
  * FTDI_SIO implementation.
  *
+ * Philipp Ghring - pg@futureware.at - added the Device ID of the USB relais
+ * from Rudolf Gugler
  */
 
 #define FTDI_VID	0x0403	/* Vendor Id */
 #define FTDI_SIO_PID	0x8372	/* Product Id SIO application of 8U100AX  */
 #define FTDI_8U232AM_PID 0x6001 /* Similar device to SIO above */
+#define FTDI_RELAIS_PID	0xFA10  /* Relais device from Rudolf Gugler */
 #define FTDI_NF_RIC_VID	0x0DCD	/* Vendor Id */
 #define FTDI_NF_RIC_PID	0x0001	/* Product Id */
 

drivers/usb/serial/ipaq.c

@@ -106,6 +106,7 @@ static struct usb_device_id ipaq_id_table [] = {
 	{ USB_DEVICE(CASIO_VENDOR_ID, CASIO_EM500_ID) },
 	{ USB_DEVICE(COMPAQ_VENDOR_ID, COMPAQ_IPAQ_ID) },
 	{ USB_DEVICE(COMPAQ_VENDOR_ID, COMPAQ_0032_ID) },
+	{ USB_DEVICE(DELL_VENDOR_ID, DELL_AXIM_ID) },
 	{ USB_DEVICE(HP_VENDOR_ID, HP_JORNADA_548_ID) },
 	{ USB_DEVICE(HP_VENDOR_ID, HP_JORNADA_568_ID) },
 	{ USB_DEVICE(HP_VENDOR_ID, HP_2016_ID) },
@@ -126,6 +127,7 @@ static struct usb_device_id ipaq_id_table [] = {
 	{ USB_DEVICE(SAGEM_VENDOR_ID, SAGEM_WIRELESS_ID) },
 	{ USB_DEVICE(SOCKET_VENDOR_ID, SOCKET_PRODUCT_ID) },
 	{ USB_DEVICE(TOSHIBA_VENDOR_ID, TOSHIBA_PRODUCT_ID) },
+	{ USB_DEVICE(TOSHIBA_VENDOR_ID, TOSHIBA_E740_ID) },
 	{ USB_DEVICE(HTC_VENDOR_ID, HTC_PRODUCT_ID) },
 	{ USB_DEVICE(NEC_VENDOR_ID, NEC_PRODUCT_ID) },
 	{ }					/* Terminating entry */

drivers/usb/serial/ipaq.h

@@ -30,6 +30,9 @@
 #define COMPAQ_IPAQ_ID		0x0003
 #define COMPAQ_0032_ID		0x0032
 
+#define DELL_VENDOR_ID		0x413c
+#define DELL_AXIM_ID		0x4001
+
 #define HP_VENDOR_ID		0x03f0
 #define HP_JORNADA_548_ID	0x1016
 #define HP_JORNADA_568_ID	0x1116
@@ -63,6 +66,7 @@
 
 #define TOSHIBA_VENDOR_ID	0x0930
 #define TOSHIBA_PRODUCT_ID	0x0700
+#define TOSHIBA_E740_ID		0x0706
 
 #define HTC_VENDOR_ID		0x0bb4
 #define HTC_PRODUCT_ID		0x00ce

drivers/usb/serial/pl2303.c

@@ -74,6 +74,7 @@ static struct usb_device_id id_table [] = {
 	{ USB_DEVICE(ITEGNO_VENDOR_ID, ITEGNO_PRODUCT_ID) },
 	{ USB_DEVICE(MA620_VENDOR_ID, MA620_PRODUCT_ID) },
 	{ USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID) },
+	{ USB_DEVICE(TRIPP_VENDOR_ID, TRIPP_PRODUCT_ID) },
 	{ }					/* Terminating entry */
 };
 

drivers/usb/serial/pl2303.h

@@ -28,3 +28,6 @@
 
 #define RATOC_VENDOR_ID		0x0584
 #define RATOC_PRODUCT_ID	0xb000
+
+#define TRIPP_VENDOR_ID		0x2478
+#define TRIPP_PRODUCT_ID	0x2008

drivers/usb/storage/datafab.h

@@ -27,14 +27,14 @@
 extern int datafab_transport(Scsi_Cmnd *srb, struct us_data *us);
 
 struct datafab_info {
-	unsigned long   sectors;     // total sector count
-	unsigned long   ssize;       // sector size in bytes
-	char            lun;         // used for dual-slot readers
-        
-        // the following aren't used yet
+	unsigned long   sectors;	// total sector count
+	unsigned long   ssize;		// sector size in bytes
+	char		lun;		// used for dual-slot readers
+	
+	// the following aren't used yet
 	unsigned char   sense_key;
-	unsigned long   sense_asc;   // additional sense code
-	unsigned long   sense_ascq;  // additional sense code qualifier
+	unsigned long   sense_asc;	// additional sense code
+	unsigned long   sense_ascq;	// additional sense code qualifier
 };
 
 #endif

drivers/usb/storage/protocol.h

@@ -53,7 +53,7 @@
 #define US_SC_UFI	0x04		/* Floppy */
 #define US_SC_8070	0x05		/* Removable media */
 #define US_SC_SCSI	0x06		/* Transparent */
-#define US_SC_ISD200    0x07            /* ISD200 ATA */
+#define US_SC_ISD200    0x07		/* ISD200 ATA */
 #define US_SC_MIN	US_SC_RBC
 #define US_SC_MAX	US_SC_ISD200
 

drivers/usb/storage/scsiglue.c

@@ -50,23 +50,25 @@
 #include "transport.h"
 
 #include <linux/slab.h>
+#include <linux/module.h>
 
 
 /***********************************************************************
  * Host functions 
  ***********************************************************************/
 
-static const char* host_info(struct Scsi_Host *host)
+static const char* usb_storage_info(struct Scsi_Host *host)
 {
 	return "SCSI emulation for USB Mass Storage devices";
 }
 
+#if 0
 /* detect a virtual adapter (always works)
  * Synchronization: 2.4: with the io_request_lock
  * 			2.5: no locks.
  * fortunately we don't care.
  * */
-static int detect(struct SHT *sht)
+static int usb_storage_detect(struct SHT *sht)
 {
 	struct us_data *us;
 	char local_name[32];
@@ -109,7 +111,7 @@ static int detect(struct SHT *sht)
  * the driver and we're doing each virtual host in turn, not in parallel
  * Synchronization: BKL, no spinlock.
  */
-static int release(struct Scsi_Host *psh)
+static int usb_storage_release(struct Scsi_Host *psh)
 {
 	struct us_data *us = (struct us_data *)psh->hostdata[0];
 
@@ -132,18 +134,11 @@ static int release(struct Scsi_Host *psh)
 	/* we always have a successful release */
 	return 0;
 }
-
-/* run command */
-static int command( Scsi_Cmnd *srb )
-{
-	US_DEBUGP("Bad use of us_command\n");
-
-	return DID_BAD_TARGET << 16;
-}
+#endif
 
 /* queue a command */
 /* This is always called with scsi_lock(srb->host) held */
-static int queuecommand( Scsi_Cmnd *srb , void (*done)(Scsi_Cmnd *))
+static int usb_storage_queuecommand( Scsi_Cmnd *srb , void (*done)(Scsi_Cmnd *))
 {
 	struct us_data *us = (struct us_data *)srb->device->host->hostdata[0];
 
@@ -168,7 +163,7 @@ static int queuecommand( Scsi_Cmnd *srb , void (*done)(Scsi_Cmnd *))
 
 /* Command abort */
 /* This is always called with scsi_lock(srb->host) held */
-static int command_abort( Scsi_Cmnd *srb )
+static int usb_storage_command_abort( Scsi_Cmnd *srb )
 {
 	struct us_data *us = (struct us_data *)srb->device->host->hostdata[0];
 
@@ -187,7 +182,7 @@ static int command_abort( Scsi_Cmnd *srb )
 /* This invokes the transport reset mechanism to reset the state of the
  * device */
 /* This is always called with scsi_lock(srb->host) held */
-static int device_reset( Scsi_Cmnd *srb )
+static int usb_storage_device_reset( Scsi_Cmnd *srb )
 {
 	struct us_data *us = (struct us_data *)srb->device->host->hostdata[0];
 	int result;
@@ -202,11 +197,10 @@ static int device_reset( Scsi_Cmnd *srb )
 	/* lock the device pointers */
 	down(&(us->dev_semaphore));
 
-	/* if the device was removed, then we're already reset */
-	if (!(us->flags & US_FL_DEV_ATTACHED))
-		result = SUCCESS;
-	else
-		result = us->transport_reset(us);
+	/* do the reset */
+	result = us->transport_reset(us);
+
+	/* unlock */
 	up(&(us->dev_semaphore));
 
 	/* lock access to the state and clear it */
@@ -219,31 +213,26 @@ static int device_reset( Scsi_Cmnd *srb )
  * disconnect/reconnect for all drivers which have claimed
  * interfaces, including ourself. */
 /* This is always called with scsi_lock(srb->host) held */
-static int bus_reset( Scsi_Cmnd *srb )
+
+/* FIXME: This needs to be re-examined in the face of the new
+ * hotplug system -- this will implicitly cause a detach/reattach of
+ * usb-storage, which is not what we want now.
+ *
+ * Can we just skip over usb-storage in the while loop?
+ */
+static int usb_storage_bus_reset( Scsi_Cmnd *srb )
 {
-	struct us_data *us = (struct us_data *)srb->device->host->hostdata[0];
+	struct us_data *us;
 	int i;
 	int result;
-	struct usb_device *pusb_dev_save;
 
 	/* we use the usb_reset_device() function to handle this for us */
 	US_DEBUGP("bus_reset() called\n");
-
 	scsi_unlock(srb->device->host);
-
-	/* if the device has been removed, this worked */
-	down(&us->dev_semaphore);
-	if (!(us->flags & US_FL_DEV_ATTACHED)) {
-		US_DEBUGP("-- device removed already\n");
-		up(&us->dev_semaphore);
-		scsi_lock(srb->device->host);
-		return SUCCESS;
-	}
-	pusb_dev_save = us->pusb_dev;
-	up(&us->dev_semaphore);
+	us = (struct us_data *)srb->device->host->hostdata[0];
 
 	/* attempt to reset the port */
-	result = usb_reset_device(pusb_dev_save);
+	result = usb_reset_device(us->pusb_dev);
 	US_DEBUGP("usb_reset_device returns %d\n", result);
 	if (result < 0) {
 		scsi_lock(srb->device->host);
@@ -253,9 +242,9 @@ static int bus_reset( Scsi_Cmnd *srb )
 	/* FIXME: This needs to lock out driver probing while it's working
 	 * or we can have race conditions */
 	/* This functionality really should be provided by the khubd thread */
-	for (i = 0; i < pusb_dev_save->actconfig->desc.bNumInterfaces; i++) {
+	for (i = 0; i < us->pusb_dev->actconfig->desc.bNumInterfaces; i++) {
  		struct usb_interface *intf =
-			&pusb_dev_save->actconfig->interface[i];
+			&us->pusb_dev->actconfig->interface[i];
 
 		/* if this is an unclaimed interface, skip it */
 		if (!intf->driver) {
@@ -274,14 +263,6 @@ static int bus_reset( Scsi_Cmnd *srb )
 	return SUCCESS;
 }
 
-/* FIXME: This doesn't do anything right now */
-static int host_reset( Scsi_Cmnd *srb )
-{
-	printk(KERN_CRIT "usb-storage: host_reset() requested but not implemented\n" );
-	bus_reset(srb);
-	return FAILED;
-}
-
 /***********************************************************************
  * /proc/scsi/ functions
  ***********************************************************************/
@@ -291,29 +272,23 @@ static int host_reset( Scsi_Cmnd *srb )
 #define SPRINTF(args...) \
 	do { if (pos < buffer+length) pos += sprintf(pos, ## args); } while (0)
 
-static int proc_info (char *buffer, char **start, off_t offset, int length,
-		int hostno, int inout)
+static int usb_storage_proc_info (char *buffer, char **start, off_t offset,
+		int length, int hostno, int inout)
 {
 	struct us_data *us;
 	char *pos = buffer;
+	struct Scsi_Host *hostptr;
 
 	/* if someone is sending us data, just throw it away */
 	if (inout)
 		return length;
 
-	/* lock the data structures */
-	down(&us_list_semaphore);
-
-	/* find our data from hostno */
-	us = us_list;
-	while (us) {
-		if (us->host_no == hostno)
-			break;
-		us = us->next;
+	/* find our data from the given hostno */
+	hostptr = scsi_host_hn_get(hostno);
+	if (!hostptr) {	 /* if we couldn't find it, we return an error */
+		return -ESRCH;
 	}
-
-	/* release our lock on the data structures */
-	up(&us_list_semaphore);
+	us = (struct us_data*)hostptr->hostdata[0];
 
 	/* if we couldn't find it, we return an error */
 	if (!us) {
@@ -332,10 +307,8 @@ static int proc_info (char *buffer, char **start, off_t offset, int length,
 	SPRINTF("     Protocol: %s\n", us->protocol_name);
 	SPRINTF("    Transport: %s\n", us->transport_name);
 
-	/* show the GUID of the device */
-	SPRINTF("         GUID: " GUID_FORMAT "\n", GUID_ARGS(us->guid));
-	SPRINTF("     Attached: %s\n", (us->flags & US_FL_DEV_ATTACHED ?
-			"Yes" : "No"));
+	/* release the reference count on this host */
+	scsi_host_put(hostptr);
 
 	/*
 	 * Calculate start of next buffer, and return value.
@@ -351,33 +324,69 @@ static int proc_info (char *buffer, char **start, off_t offset, int length,
 }
 
 /*
- * this defines our 'host'
+ * this defines our host template, with which we'll allocate hosts
  */
 
-Scsi_Host_Template usb_stor_host_template = {
-	.name =			"usb-storage",
-	.proc_info =		proc_info,
-	.info =			host_info,
-
-	.detect =		detect,
-	.release =		release,
-	.command =		command,
-	.queuecommand =		queuecommand,
-
-	.eh_abort_handler =	command_abort,
-	.eh_device_reset_handler =device_reset,
-	.eh_bus_reset_handler =	bus_reset,
-	.eh_host_reset_handler =host_reset,
-
-	.can_queue =		1,
-	.this_id =		-1,
-
-	.sg_tablesize =		SG_ALL,
-	.cmd_per_lun =		1,
-	.present =		0,
-	.unchecked_isa_dma =	FALSE,
-	.use_clustering =	TRUE,
-	.emulated =		TRUE
+struct SHT usb_stor_host_template = {
+	/* basic userland interface stuff */
+	.name =				"usb-storage",
+	.proc_name =			"usb-storage",
+	.proc_info =			usb_storage_proc_info,
+	.proc_dir =			NULL,
+	.info =				usb_storage_info,
+	.ioctl =			NULL,
+
+	/* old-style detect and release */
+	.detect =			NULL,
+	.release =			NULL,
+
+	/* command interface -- queued only */
+	.command =			NULL,
+	.queuecommand =			usb_storage_queuecommand,
+
+	/* error and abort handlers */
+	.eh_abort_handler =		usb_storage_command_abort,
+	.eh_device_reset_handler =	usb_storage_device_reset,
+	.eh_bus_reset_handler =		usb_storage_bus_reset,
+	.eh_host_reset_handler =	NULL,
+	.eh_strategy_handler =		NULL,
+
+	/* queue commands only, only one command per LUN */
+	.can_queue =			1,
+	.cmd_per_lun =			1,
+
+	/* unknown initiator id */
+	.this_id =			-1,
+
+	/* no limit on commands */
+	.max_sectors =			0,
+	
+	/* pre- and post- device scan functions */
+	.slave_alloc =			NULL,
+	.slave_configure =		NULL,
+	.slave_destroy =		NULL,
+
+	/* lots of sg segments can be handled */
+	.sg_tablesize =			SG_ALL,
+
+	/* use 32-bit address space for DMA */
+	.unchecked_isa_dma =		FALSE,
+	.highmem_io =			FALSE,
+
+	/* merge commands... this seems to help performance, but
+	 * periodically someone should test to see which setting is more
+	 * optimal.
+	 */
+	.use_clustering =		TRUE,
+
+	/* emulated HBA */
+	.emulated =			TRUE,
+
+	/* sorry, no BIOS to help us */
+	.bios_param =			NULL,
+
+	/* module management */
+	.module =			THIS_MODULE
 };
 
 /* For a device that is "Not Ready" */

drivers/usb/storage/scsiglue.h

@@ -47,7 +47,7 @@
 
 extern unsigned char usb_stor_sense_notready[18];
 extern unsigned char usb_stor_sense_invalidCDB[18];
-extern Scsi_Host_Template usb_stor_host_template;
+extern struct SHT usb_stor_host_template;
 extern int usb_stor_scsiSense10to6(Scsi_Cmnd*);
 extern int usb_stor_scsiSense6to10(Scsi_Cmnd*);
 

fs/seq_file.c

@@ -10,6 +10,7 @@
 #include <linux/slab.h>
 
 #include <asm/uaccess.h>
+#include <asm/page.h>
 
 /**
  *	seq_open -	initialize sequential file