IB/ipath: simplify debugging code after ipath_core and ib_ipath merger

[linux.git] / lib / string.c

diff --git a/lib/string.c b/lib/string.c
index b3c28a3f63322ff528a38df4895020c257b20050..63077267367ea08d7770e59a9e6e6b23bb4725e7 100644 (file)
--- a/lib/string.c
+++ b/lib/string.c
@@ -301,6 +301,36 @@ char *strnchr(const char *s, size_t count, int c)
 EXPORT_SYMBOL(strnchr);
 #endif
 
+/**
+ * strstrip - Removes leading and trailing whitespace from @s.
+ * @s: The string to be stripped.
+ *
+ * Note that the first trailing whitespace is replaced with a %NUL-terminator
+ * in the given string @s. Returns a pointer to the first non-whitespace
+ * character in @s.
+ */
+char *strstrip(char *s)
+{
+       size_t size;
+       char *end;
+
+       size = strlen(s);
+
+       if (!size)
+               return s;
+
+       end = s + size - 1;
+       while (end != s && isspace(*end))
+               end--;
+       *(end + 1) = '\0';
+
+       while (*s && isspace(*s))
+               s++;
+
+       return s;
+}
+EXPORT_SYMBOL(strstrip);
+
 #ifndef __HAVE_ARCH_STRLEN
 /**
  * strlen - Find the length of a string
@@ -362,6 +392,7 @@ size_t strspn(const char *s, const char *accept)
 EXPORT_SYMBOL(strspn);
 #endif
 
+#ifndef __HAVE_ARCH_STRCSPN
 /**
  * strcspn - Calculate the length of the initial substring of @s which does
  *     not contain letters in @reject
@@ -384,6 +415,7 @@ size_t strcspn(const char *s, const char *reject)
        return count;
 }
 EXPORT_SYMBOL(strcspn);
+#endif
 
 #ifndef __HAVE_ARCH_STRPBRK
 /**
@@ -403,6 +435,7 @@ char *strpbrk(const char *cs, const char *ct)
        }
        return NULL;
 }
+EXPORT_SYMBOL(strpbrk);
 #endif
 
 #ifndef __HAVE_ARCH_STRSEP
@@ -467,7 +500,7 @@ EXPORT_SYMBOL(memset);
 void *memcpy(void *dest, const void *src, size_t count)
 {
        char *tmp = dest;
-       char *s = src;
+       const char *s = src;
 
        while (count--)
                *tmp++ = *s++;