Staging: altera: move .h file to proper place

[pandora-kernel.git] / lib / kstrtox.c

diff --git a/lib/kstrtox.c b/lib/kstrtox.c
index a235f3c..2dbae88 100644 (file)
--- a/lib/kstrtox.c
+++ b/lib/kstrtox.c
@@ -17,6 +17,7 @@
 #include <linux/math64.h>
 #include <linux/module.h>
 #include <linux/types.h>
+#include <asm/uaccess.h>
 
 static inline char _tolower(const char c)
 {
@@ -222,3 +223,28 @@ int kstrtos8(const char *s, unsigned int base, s8 *res)
        return 0;
 }
 EXPORT_SYMBOL(kstrtos8);
+
+#define kstrto_from_user(f, g, type)                                   \
+int f(const char __user *s, size_t count, unsigned int base, type *res)        \
+{                                                                      \
+       /* sign, base 2 representation, newline, terminator */          \
+       char buf[1 + sizeof(type) * 8 + 1 + 1];                         \
+                                                                       \
+       count = min(count, sizeof(buf) - 1);                            \
+       if (copy_from_user(buf, s, count))                              \
+               return -EFAULT;                                         \
+       buf[count] = '\0';                                              \
+       return g(buf, base, res);                                       \
+}                                                                      \
+EXPORT_SYMBOL(f)
+
+kstrto_from_user(kstrtoull_from_user,  kstrtoull,      unsigned long long);
+kstrto_from_user(kstrtoll_from_user,   kstrtoll,       long long);
+kstrto_from_user(kstrtoul_from_user,   kstrtoul,       unsigned long);
+kstrto_from_user(kstrtol_from_user,    kstrtol,        long);
+kstrto_from_user(kstrtouint_from_user, kstrtouint,     unsigned int);
+kstrto_from_user(kstrtoint_from_user,  kstrtoint,      int);
+kstrto_from_user(kstrtou16_from_user,  kstrtou16,      u16);
+kstrto_from_user(kstrtos16_from_user,  kstrtos16,      s16);
+kstrto_from_user(kstrtou8_from_user,   kstrtou8,       u8);
+kstrto_from_user(kstrtos8_from_user,   kstrtos8,       s8);