4 files changed, 31 insertions, 7 deletions

diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
index 819ac51202c0..99c8bfee1b00 100644
--- a/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@ -575,8 +575,8 @@ config DEBUG_HIGHMEM
         bool "Highmem debugging"
         depends on DEBUG_KERNEL && HIGHMEM
         help
-          This options enables addition error checking for high memory systems.
-          Disable for production systems.
+          This option enables additional error checking for high memory
+          systems.  Disable for production systems.
 
 config HAVE_DEBUG_STACKOVERFLOW
         bool
diff --git a/lib/devres.c b/lib/devres.c
index 2f16c133fd36..f562bf6ff71d 100644
--- a/lib/devres.c
+++ b/lib/devres.c
@@ -157,12 +157,12 @@ EXPORT_SYMBOL(devm_ioremap_resource);
  *      if (!base)
  *              return -EADDRNOTAVAIL;
  */
-void __iomem *devm_request_and_ioremap(struct device *device,
+void __iomem *devm_request_and_ioremap(struct device *dev,
                                        struct resource *res)
 {
         void __iomem *dest_ptr;
 
-        dest_ptr = devm_ioremap_resource(device, res);
+        dest_ptr = devm_ioremap_resource(dev, res);
         if (IS_ERR(dest_ptr))
                 return NULL;
 
@@ -194,7 +194,7 @@ static int devm_ioport_map_match(struct device *dev, void *res,
  * Managed ioport_map().  Map is automatically unmapped on driver
  * detach.
  */
-void __iomem * devm_ioport_map(struct device *dev, unsigned long port,
+void __iomem *devm_ioport_map(struct device *dev, unsigned long port,
                                unsigned int nr)
 {
         void __iomem **ptr, *addr;
@@ -265,7 +265,7 @@ static void pcim_iomap_release(struct device *gendev, void *res)
  * be safely called without context and guaranteed to succed once
  * allocated.
  */
-void __iomem * const * pcim_iomap_table(struct pci_dev *pdev)
+void __iomem * const *pcim_iomap_table(struct pci_dev *pdev)
 {
         struct pcim_iomap_devres *dr, *new_dr;
 
@@ -290,7 +290,7 @@ EXPORT_SYMBOL(pcim_iomap_table);
  * Managed pci_iomap().  Map is automatically unmapped on driver
  * detach.
  */
-void __iomem * pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen)
+void __iomem *pcim_iomap(struct pci_dev *pdev, int bar, unsigned long maxlen)
 {
         void __iomem **tbl;
 
diff --git a/lib/kobject_uevent.c b/lib/kobject_uevent.c
index 4e3bd71bd949..9ebf9e20de53 100644
--- a/lib/kobject_uevent.c
+++ b/lib/kobject_uevent.c
@@ -29,7 +29,9 @@
 
 
 u64 uevent_seqnum;
+#ifdef CONFIG_UEVENT_HELPER
 char uevent_helper[UEVENT_HELPER_PATH_LEN] = CONFIG_UEVENT_HELPER_PATH;
+#endif
 #ifdef CONFIG_NET
 struct uevent_sock {
         struct list_head list;
@@ -109,6 +111,7 @@ static int kobj_bcast_filter(struct sock *dsk, struct sk_buff *skb, void *data)
 }
 #endif
 
+#ifdef CONFIG_UEVENT_HELPER
 static int kobj_usermode_filter(struct kobject *kobj)
 {
         const struct kobj_ns_type_operations *ops;
@@ -147,6 +150,7 @@ static void cleanup_uevent_env(struct subprocess_info *info)
 {
         kfree(info->data);
 }
+#endif
 
 /**
  * kobject_uevent_env - send an uevent with environmental data
@@ -323,6 +327,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
 #endif
         mutex_unlock(&uevent_sock_mutex);
 
+#ifdef CONFIG_UEVENT_HELPER
         /* call uevent_helper, usually only enabled during early boot */
         if (uevent_helper[0] && !kobj_usermode_filter(kobj)) {
                 struct subprocess_info *info;
@@ -347,6 +352,7 @@ int kobject_uevent_env(struct kobject *kobj, enum kobject_action action,
                         env = NULL;     /* freed by cleanup_uevent_env */
                 }
         }
+#endif
 
 exit:
         kfree(devpath);
diff --git a/lib/string.c b/lib/string.c
index 9b1f9062a202..e0c20eb362f0 100644
--- a/lib/string.c
+++ b/lib/string.c
@@ -301,6 +301,24 @@ char *strchr(const char *s, int c)
 EXPORT_SYMBOL(strchr);
 #endif
 
+#ifndef __HAVE_ARCH_STRCHRNUL
+/**
+ * strchrnul - Find and return a character in a string, or end of string
+ * @s: The string to be searched
+ * @c: The character to search for
+ *
+ * Returns pointer to first occurrence of 'c' in s. If c is not found, then
+ * return a pointer to the null byte at the end of s.
+ */
+char *strchrnul(const char *s, int c)
+{
+        while (*s && *s != (char)c)
+                s++;
+        return (char *)s;
+}
+EXPORT_SYMBOL(strchrnul);
+#endif
+
 #ifndef __HAVE_ARCH_STRRCHR
 /**
  * strrchr - Find the last occurrence of a character in a string