Blackfin: Annotate strnlen_user and strlen_user 'src' parameter with __user

The 'src' parameter of strnlen_user and strlen_user is supposed to take a
userspace pointer, so annotate it with __user. This fixes the following and
similar sparse warnings:

	fs/binfmt_elf_fdpic.c:671:36: warning: incorrect type in argument 1 (different address spaces)
	fs/binfmt_elf_fdpic.c:671:36:    expected char const *src
	fs/binfmt_elf_fdpic.c:671:36:    got char [noderef] <asn:1>*[assigned] p
	fs/binfmt_elf_fdpic.c:683:36: warning: incorrect type in argument 1 (different address spaces)
	fs/binfmt_elf_fdpic.c:683:36:    expected char const *src
	fs/binfmt_elf_fdpic.c:683:36:    got char [noderef] <asn:1>*[assigned] p

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Bob Liu <lliubbo@gmail.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/arch/blackfin/include/asm/uaccess.h b/arch/blackfin/include/asm/uaccess.h
index ded2d05847fa..3ee7b4216150 100644
--- a/arch/blackfin/include/asm/uaccess.h
+++ b/arch/blackfin/include/asm/uaccess.h
@@ -237,18 +237,18 @@ strncpy_from_user(char *dst, const char __user *src, long count)
  * On exception, returns 0.
  * If the string is too long, returns a value greater than n.
  */
-static inline long __must_check strnlen_user(const char *src, long n)
+static inline long __must_check strnlen_user(const char __user *src, long n)
 {
         if (!access_ok(VERIFY_READ, src, 1))
                 return 0;
-        return strnlen(src, n) + 1;
+        return strnlen((const char __force *)src, n) + 1;
 }
 
-static inline long __must_check strlen_user(const char *src)
+static inline long __must_check strlen_user(const char __user *src)
 {
         if (!access_ok(VERIFY_READ, src, 1))
                 return 0;
-        return strlen(src) + 1;
+        return strlen((const char __force *)src) + 1;
 }
 
 /*