11 files changed, 198 insertions, 107 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 3f3e7403dcac..79afd00bbe5f 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -261,7 +261,7 @@ config LOCKDEP
         bool
         depends on DEBUG_KERNEL && TRACE_IRQFLAGS_SUPPORT && STACKTRACE_SUPPORT && LOCKDEP_SUPPORT
         select STACKTRACE
-        select FRAME_POINTER if !X86
+        select FRAME_POINTER if !X86 && !MIPS
         select KALLSYMS
         select KALLSYMS_ALL
 
diff --git a/lib/Makefile b/lib/Makefile
index 992a39ef9ffd..ae57f357fec0 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -4,7 +4,7 @@
 
 lib-y := ctype.o string.o vsprintf.o cmdline.o \
          rbtree.o radix-tree.o dump_stack.o \
-         idr.o div64.o int_sqrt.o bitmap.o extable.o prio_tree.o \
+         idr.o int_sqrt.o bitmap.o extable.o prio_tree.o \
          sha1.o irq_regs.o reciprocal_div.o
 
 lib-$(CONFIG_MMU) += ioremap.o
@@ -12,7 +12,8 @@ lib-$(CONFIG_SMP) += cpumask.o
 
 lib-y   += kobject.o kref.o kobject_uevent.o klist.o
 
-obj-y += sort.o parser.o halfmd4.o debug_locks.o random32.o bust_spinlocks.o
+obj-y += div64.o sort.o parser.o halfmd4.o debug_locks.o random32.o \
+         bust_spinlocks.o
 
 ifeq ($(CONFIG_DEBUG_KOBJECT),y)
 CFLAGS_kobject.o += -DDEBUG
diff --git a/lib/devres.c b/lib/devres.c
index eb38849aa717..b1d336ce7f3d 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -296,5 +296,31 @@ int pcim_iomap_regions(struct pci_dev *pdev, u16 mask, const char *name)
         return rc;
 }
 EXPORT_SYMBOL(pcim_iomap_regions);
+
+/**
+ * pcim_iounmap_regions - Unmap and release PCI BARs
+ * @pdev: PCI device to map IO resources for
+ * @mask: Mask of BARs to unmap and release
+ *
+ * Unamp and release regions specified by @mask.
+ */
+void pcim_iounmap_regions(struct pci_dev *pdev, u16 mask)
+{
+        void __iomem * const *iomap;
+        int i;
+
+        iomap = pcim_iomap_table(pdev);
+        if (!iomap)
+                return;
+
+        for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
+                if (!(mask & (1 << i)))
+                        continue;
+
+                pcim_iounmap(pdev, iomap[i]);
+                pci_release_region(pdev, i);
+        }
+}
+EXPORT_SYMBOL(pcim_iounmap_regions);
 #endif
 #endif
diff --git a/lib/div64.c b/lib/div64.c
index 365719f84832..b71cf93c529a 100644
--- a/lib/div64.c
+++ b/lib/div64.c
@@ -23,7 +23,7 @@
 /* Not needed on 64bit architectures */
 #if BITS_PER_LONG == 32
 
-uint32_t __div64_32(uint64_t *n, uint32_t base)
+uint32_t __attribute__((weak)) __div64_32(uint64_t *n, uint32_t base)
 {
         uint64_t rem = *n;
         uint64_t b = base;
@@ -58,4 +58,24 @@ uint32_t __div64_32(uint64_t *n, uint32_t base)
 
 EXPORT_SYMBOL(__div64_32);
 
+/* 64bit divisor, dividend and result. dynamic precision */
+uint64_t div64_64(uint64_t dividend, uint64_t divisor)
+{
+        uint32_t high, d;
+
+        high = divisor >> 32;
+        if (high) {
+                unsigned int shift = fls(high);
+
+                d = divisor >> shift;
+                dividend >>= shift;
+        } else
+                d = divisor;
+
+        do_div(dividend, d);
+
+        return dividend;
+}
+EXPORT_SYMBOL(div64_64);
+
 #endif /* BITS_PER_LONG == 32 */
diff --git a/lib/iomap.c b/lib/iomap.c
index 4d43f37c0154..a57d262a5ed9 100644
--- a/lib/iomap.c
+++ b/lib/iomap.c
@@ -35,20 +35,28 @@
 #define PIO_RESERVED    0x40000UL
 #endif
 
+static void bad_io_access(unsigned long port, const char *access)
+{
+        static int count = 10;
+        if (count) {
+                count--;
+                printk(KERN_ERR "Bad IO access at port %lx (%s)\n", port, access);
+                WARN_ON(1);
+        }
+}
+
 /*
  * Ugly macros are a way of life.
  */
-#define VERIFY_PIO(port) BUG_ON((port & ~PIO_MASK) != PIO_OFFSET)
-
 #define IO_COND(addr, is_pio, is_mmio) do {                     \
         unsigned long port = (unsigned long __force)addr;       \
-        if (port < PIO_RESERVED) {                              \
-                VERIFY_PIO(port);                               \
+        if (port >= PIO_RESERVED) {                             \
+                is_mmio;                                        \
+        } else if (port > PIO_OFFSET) {                         \
                 port &= PIO_MASK;                               \
                 is_pio;                                         \
-        } else {                                                \
-                is_mmio;                                        \
-        }                                                       \
+        } else                                                  \
+                bad_io_access(port, #is_pio );                  \
 } while (0)
 
 #ifndef pio_read16be
@@ -64,22 +72,27 @@
 unsigned int fastcall ioread8(void __iomem *addr)
 {
         IO_COND(addr, return inb(port), return readb(addr));
+        return 0xff;
 }
 unsigned int fastcall ioread16(void __iomem *addr)
 {
         IO_COND(addr, return inw(port), return readw(addr));
+        return 0xffff;
 }
 unsigned int fastcall ioread16be(void __iomem *addr)
 {
         IO_COND(addr, return pio_read16be(port), return mmio_read16be(addr));
+        return 0xffff;
 }
 unsigned int fastcall ioread32(void __iomem *addr)
 {
         IO_COND(addr, return inl(port), return readl(addr));
+        return 0xffffffff;
 }
 unsigned int fastcall ioread32be(void __iomem *addr)
 {
         IO_COND(addr, return pio_read32be(port), return mmio_read32be(addr));
+        return 0xffffffff;
 }
 EXPORT_SYMBOL(ioread8);
 EXPORT_SYMBOL(ioread16);
diff --git a/lib/kobject.c b/lib/kobject.c
index 057921c5945a..fc5f3f6e7329 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -157,7 +157,7 @@ static void unlink(struct kobject * kobj)
 }
 
 /**
- *      kobject_add - add an object to the hierarchy.
+ *      kobject_shadow_add - add an object to the hierarchy.
  *      @kobj:  object.
  *      @shadow_parent: sysfs directory to add to.
  */
@@ -174,6 +174,7 @@ int kobject_shadow_add(struct kobject * kobj, struct dentry *shadow_parent)
         if (!*kobj->k_name) {
                 pr_debug("kobject attempted to be registered with no name!\n");
                 WARN_ON(1);
+                kobject_put(kobj);
                 return -EINVAL;
         }
         parent = kobject_get(kobj->parent);
@@ -190,8 +191,8 @@ int kobject_shadow_add(struct kobject * kobj, struct dentry *shadow_parent)
 
                 list_add_tail(&kobj->entry,&kobj->kset->list);
                 spin_unlock(&kobj->kset->list_lock);
+                kobj->parent = parent;
         }
-        kobj->parent = parent;
 
         error = create_dir(kobj, shadow_parent);
         if (error) {
@@ -311,13 +312,43 @@ EXPORT_SYMBOL(kobject_set_name);
 int kobject_rename(struct kobject * kobj, const char *new_name)
 {
         int error = 0;
+        const char *devpath = NULL;
+        char *devpath_string = NULL;
+        char *envp[2];
 
         kobj = kobject_get(kobj);
         if (!kobj)
                 return -EINVAL;
         if (!kobj->parent)
                 return -EINVAL;
+
+        devpath = kobject_get_path(kobj, GFP_KERNEL);
+        if (!devpath) {
+                error = -ENOMEM;
+                goto out;
+        }
+        devpath_string = kmalloc(strlen(devpath) + 15, GFP_KERNEL);
+        if (!devpath_string) {
+                error = -ENOMEM;
+                goto out;
+        }
+        sprintf(devpath_string, "DEVPATH_OLD=%s", devpath);
+        envp[0] = devpath_string;
+        envp[1] = NULL;
+        /* Note : if we want to send the new name alone, not the full path,
+         * we could probably use kobject_name(kobj); */
+
         error = sysfs_rename_dir(kobj, kobj->parent->dentry, new_name);
+
+        /* This function is mostly/only used for network interface.
+         * Some hotplug package track interfaces by their name and
+         * therefore want to know when the name is changed by the user. */
+        if (!error)
+                kobject_uevent_env(kobj, KOBJ_MOVE, envp);
+
+out:
+        kfree(devpath_string);
+        kfree(devpath);
         kobject_put(kobj);
 
         return error;
@@ -488,13 +519,15 @@ static struct kobj_type dir_ktype = {
 };
 
 /**
- *      kobject_add_dir - add sub directory of object.
+ *      kobject_kset_add_dir - add sub directory of object.
+ *      @kset:          kset the directory is belongs to.
  *      @parent:        object in which a directory is created.
  *      @name:  directory name.
  *
  *      Add a plain directory object as child of given object.
  */
-struct kobject *kobject_add_dir(struct kobject *parent, const char *name)
+struct kobject *kobject_kset_add_dir(struct kset *kset,
+                                     struct kobject *parent, const char *name)
 {
         struct kobject *k;
         int ret;
@@ -506,13 +539,14 @@ struct kobject *kobject_add_dir(struct kobject *parent, const char *name)
         if (!k)
                 return NULL;
 
+        k->kset = kset;
         k->parent = parent;
         k->ktype = &dir_ktype;
         kobject_set_name(k, name);
         ret = kobject_register(k);
         if (ret < 0) {
-                printk(KERN_WARNING "kobject_add_dir: "
-                        "kobject_register error: %d\n", ret);
+                printk(KERN_WARNING "%s: kobject_register error: %d\n",
+                        __func__, ret);
                 kobject_del(k);
                 return NULL;
         }
@@ -521,6 +555,18 @@ struct kobject *kobject_add_dir(struct kobject *parent, const char *name)
 }
 
 /**
+ *      kobject_add_dir - add sub directory of object.
+ *      @parent:        object in which a directory is created.
+ *      @name:  directory name.
+ *
+ *      Add a plain directory object as child of given object.
+ */
+struct kobject *kobject_add_dir(struct kobject *parent, const char *name)
+{
+        return kobject_kset_add_dir(NULL, parent, name);
+}
+
+/**
  *      kset_init - initialize a kset for use
  *      @k:     kset 
  */
@@ -536,22 +582,10 @@ void kset_init(struct kset * k)
 /**
  *      kset_add - add a kset object to the hierarchy.
  *      @k:     kset.
- *
- *      Simply, this adds the kset's embedded kobject to the 
- *      hierarchy. 
- *      We also try to make sure that the kset's embedded kobject
- *      has a parent before it is added. We only care if the embedded
- *      kobject is not part of a kset itself, since kobject_add()
- *      assigns a parent in that case. 
- *      If that is the case, and the kset has a controlling subsystem,
- *      then we set the kset's parent to be said subsystem. 
  */
 
 int kset_add(struct kset * k)
 {
-        if (!k->kobj.parent && !k->kobj.kset && k->subsys)
-                k->kobj.parent = &k->subsys->kset.kobj;
-
         return kobject_add(&k->kobj);
 }
 
@@ -610,55 +644,28 @@ struct kobject * kset_find_obj(struct kset * kset, const char * name)
         return ret;
 }
 
-
-void subsystem_init(struct subsystem * s)
+void subsystem_init(struct kset *s)
 {
-        init_rwsem(&s->rwsem);
-        kset_init(&s->kset);
+        kset_init(s);
 }
 
-/**
- *      subsystem_register - register a subsystem.
- *      @s:     the subsystem we're registering.
- *
- *      Once we register the subsystem, we want to make sure that 
- *      the kset points back to this subsystem for correct usage of 
- *      the rwsem. 
- */
-
-int subsystem_register(struct subsystem * s)
+int subsystem_register(struct kset *s)
 {
-        int error;
-
-        if (!s)
-                return -EINVAL;
-
-        subsystem_init(s);
-        pr_debug("subsystem %s: registering\n",s->kset.kobj.name);
-
-        if (!(error = kset_add(&s->kset))) {
-                if (!s->kset.subsys)
-                        s->kset.subsys = s;
-        }
-        return error;
+        return kset_register(s);
 }
 
-void subsystem_unregister(struct subsystem * s)
+void subsystem_unregister(struct kset *s)
 {
-        if (!s)
-                return;
-        pr_debug("subsystem %s: unregistering\n",s->kset.kobj.name);
-        kset_unregister(&s->kset);
+        kset_unregister(s);
 }
 
-
 /**
  *      subsystem_create_file - export sysfs attribute file.
  *      @s:     subsystem.
  *      @a:     subsystem attribute descriptor.
  */
 
-int subsys_create_file(struct subsystem * s, struct subsys_attribute * a)
+int subsys_create_file(struct kset *s, struct subsys_attribute *a)
 {
         int error = 0;
 
@@ -666,28 +673,12 @@ int subsys_create_file(struct subsystem * s, struct subsys_attribute * a)
                 return -EINVAL;
 
         if (subsys_get(s)) {
-                error = sysfs_create_file(&s->kset.kobj,&a->attr);
+                error = sysfs_create_file(&s->kobj, &a->attr);
                 subsys_put(s);
         }
         return error;
 }
 
-
-/**
- *      subsystem_remove_file - remove sysfs attribute file.
- *      @s:     subsystem.
- *      @a:     attribute desciptor.
- */
-#if 0
-void subsys_remove_file(struct subsystem * s, struct subsys_attribute * a)
-{
-        if (subsys_get(s)) {
-                sysfs_remove_file(&s->kset.kobj,&a->attr);
-                subsys_put(s);
-        }
-}
-#endif  /*  0  */
-
 EXPORT_SYMBOL(kobject_init);
 EXPORT_SYMBOL(kobject_register);
 EXPORT_SYMBOL(kobject_unregister);
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index 84272ed77f03..12e311dc664c 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -42,10 +42,6 @@ static char *action_to_string(enum kobject_action action)
                 return "remove";
         case KOBJ_CHANGE:
                 return "change";
-        case KOBJ_MOUNT:
-                return "mount";
-        case KOBJ_UMOUNT:
-                return "umount";
         case KOBJ_OFFLINE:
                 return "offline";
         case KOBJ_ONLINE:
@@ -95,10 +91,8 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 
         /* search the kset we belong to */
         top_kobj = kobj;
-        if (!top_kobj->kset && top_kobj->parent) {
-                do {
-                        top_kobj = top_kobj->parent;
-                } while (!top_kobj->kset && top_kobj->parent);
+        while (!top_kobj->kset && top_kobj->parent) {
+                top_kobj = top_kobj->parent;
         }
         if (!top_kobj->kset) {
                 pr_debug("kobject attempted to send uevent without kset!\n");
@@ -115,6 +109,16 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
                         return 0;
                 }
 
+        /* originating subsystem */
+        if (uevent_ops && uevent_ops->name)
+                subsystem = uevent_ops->name(kset, kobj);
+        else
+                subsystem = kobject_name(&kset->kobj);
+        if (!subsystem) {
+                pr_debug("unset subsytem caused the event to drop!\n");
+                return 0;
+        }
+
         /* environment index */
         envp = kzalloc(NUM_ENVP * sizeof (char *), GFP_KERNEL);
         if (!envp)
@@ -134,12 +138,6 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
                 goto exit;
         }
 
-        /* originating subsystem */
-        if (uevent_ops && uevent_ops->name)
-                subsystem = uevent_ops->name(kset, kobj);
-        else
-                subsystem = kobject_name(&kset->kobj);
-
         /* event environemnt for helper process only */
         envp[i++] = "HOME=/";
         envp[i++] = "PATH=/sbin:/bin:/usr/sbin:/usr/bin";
@@ -293,7 +291,7 @@ EXPORT_SYMBOL_GPL(add_uevent_var);
 static int __init kobject_uevent_init(void)
 {
         uevent_sock = netlink_kernel_create(NETLINK_KOBJECT_UEVENT, 1, NULL,
-                                            THIS_MODULE);
+                                            NULL, THIS_MODULE);
 
         if (!uevent_sock) {
                 printk(KERN_ERR
diff --git a/lib/kref.c b/lib/kref.c
index 0d07cc31c818..a6dc3ec328e0 100644
--- a/lib/kref.c
+++ b/lib/kref.c
@@ -21,6 +21,7 @@
 void kref_init(struct kref *kref)
 {
         atomic_set(&kref->refcount,1);
+        smp_mb();
 }
 
 /**
@@ -31,6 +32,7 @@ void kref_get(struct kref *kref)
 {
         WARN_ON(!atomic_read(&kref->refcount));
         atomic_inc(&kref->refcount);
+        smp_mb__after_atomic_inc();
 }
 
 /**
diff --git a/lib/parser.c b/lib/parser.c
index 7ad2a48abc5e..703c8c13b346 100644
--- a/lib/parser.c
+++ b/lib/parser.c
@@ -22,7 +22,7 @@
  * match extremely simple token=arg style patterns. If the pattern is found,
  * the location(s) of the arguments will be returned in the @args array.
  */
-static int match_one(char *s, char *p, substring_t args[])
+static int match_one(char *s, const char *p, substring_t args[])
 {
         char *meta;
         int argc = 0;
@@ -43,7 +43,7 @@ static int match_one(char *s, char *p, substring_t args[])
                 p = meta + 1;
 
                 if (isdigit(*p))
-                        len = simple_strtoul(p, &p, 10);
+                        len = simple_strtoul(p, (char **) &p, 10);
                 else if (*p == '%') {
                         if (*s++ != '%')
                                 return 0;
@@ -102,7 +102,7 @@ static int match_one(char *s, char *p, substring_t args[])
  */
 int match_token(char *s, match_table_t table, substring_t args[])
 {
-        struct match_token *p;
+        const struct match_token *p;
 
         for (p = table; !match_one(s, p->pattern, args) ; p++)
                 ;
@@ -190,7 +190,7 @@ int match_hex(substring_t *s, int *result)
  * &substring_t @s to the c-style string @to. Caller guarantees that @to is
  * large enough to hold the characters of @s.
  */
-void match_strcpy(char *to, substring_t *s)
+void match_strcpy(char *to, const substring_t *s)
 {
         memcpy(to, s->from, s->to - s->from);
         to[s->to - s->from] = '\0';
@@ -204,7 +204,7 @@ void match_strcpy(char *to, substring_t *s)
  * the &substring_t @s. The caller is responsible for freeing the returned
  * string with kfree().
  */
-char *match_strdup(substring_t *s)
+char *match_strdup(const substring_t *s)
 {
         char *p = kmalloc(s->to - s->from + 1, GFP_KERNEL);
         if (p)
diff --git a/lib/string.c b/lib/string.c
index bab440fb0dfc..5efafed3d6b6 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -60,6 +60,34 @@ int strnicmp(const char *s1, const char *s2, size_t len)
 EXPORT_SYMBOL(strnicmp);
 #endif
 
+#ifndef __HAVE_ARCH_STRCASECMP
+int strcasecmp(const char *s1, const char *s2)
+{
+        int c1, c2;
+
+        do {
+                c1 = tolower(*s1++);
+                c2 = tolower(*s2++);
+        } while (c1 == c2 && c1 != 0);
+        return c1 - c2;
+}
+EXPORT_SYMBOL(strcasecmp);
+#endif
+
+#ifndef __HAVE_ARCH_STRNCASECMP
+int strncasecmp(const char *s1, const char *s2, size_t n)
+{
+        int c1, c2;
+
+        do {
+                c1 = tolower(*s1++);
+                c2 = tolower(*s2++);
+        } while ((--n > 0) && c1 == c2 && c1 != 0);
+        return c1 - c2;
+}
+EXPORT_SYMBOL(strncasecmp);
+#endif
+
 #ifndef __HAVE_ARCH_STRCPY
 /**
  * strcpy - Copy a %NUL terminated string
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index b025864d2e43..cbab1df150cf 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -851,23 +851,35 @@ EXPORT_SYMBOL(sscanf);
 
 
 /* Simplified asprintf. */
-char *kasprintf(gfp_t gfp, const char *fmt, ...)
+char *kvasprintf(gfp_t gfp, const char *fmt, va_list ap)
 {
-        va_list ap;
         unsigned int len;
         char *p;
+        va_list aq;
 
-        va_start(ap, fmt);
-        len = vsnprintf(NULL, 0, fmt, ap);
-        va_end(ap);
+        va_copy(aq, ap);
+        len = vsnprintf(NULL, 0, fmt, aq);
+        va_end(aq);
 
         p = kmalloc(len+1, gfp);
         if (!p)
                 return NULL;
-        va_start(ap, fmt);
+
         vsnprintf(p, len+1, fmt, ap);
-        va_end(ap);
+
         return p;
 }
+EXPORT_SYMBOL(kvasprintf);
+
+char *kasprintf(gfp_t gfp, const char *fmt, ...)
+{
+        va_list ap;
+        char *p;
 
+        va_start(ap, fmt);
+        p = kvasprintf(gfp, fmt, ap);
+        va_end(ap);
+
+        return p;
+}
 EXPORT_SYMBOL(kasprintf);