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authorLey Foon Tan <ley.foon.tan@intel.com>2017-05-08 17:14:14 +0800
committerLey Foon Tan <ley.foon.tan@intel.com>2017-05-08 17:14:14 +0800
commit7f1e614113ffe75f5ea7c99f641bf1b56f85be03 (patch)
tree18c95adccb9ce60cddd4f1407639678bcc74dbfd /arch/nios2/include/asm
parentnios2: Add CDX support (diff)
downloadlinux-dev-7f1e614113ffe75f5ea7c99f641bf1b56f85be03.tar.xz
linux-dev-7f1e614113ffe75f5ea7c99f641bf1b56f85be03.zip
nios2: use generic strncpy_from_user() and strnlen_user()
This change enables the generic strncpy_from_user() and strnlen_user() Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>
Diffstat (limited to 'arch/nios2/include/asm')
-rw-r--r--arch/nios2/include/asm/uaccess.h7
1 files changed, 5 insertions, 2 deletions
diff --git a/arch/nios2/include/asm/uaccess.h b/arch/nios2/include/asm/uaccess.h
index 727bd9504899..dfa3c7cb30b4 100644
--- a/arch/nios2/include/asm/uaccess.h
+++ b/arch/nios2/include/asm/uaccess.h
@@ -42,6 +42,8 @@
# define __EX_TABLE_SECTION ".section __ex_table,\"a\"\n"
+#define user_addr_max() (uaccess_kernel() ? ~0UL : TASK_SIZE)
+
/*
* Zero Userspace
*/
@@ -81,8 +83,9 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n);
#define INLINE_COPY_TO_USER
extern long strncpy_from_user(char *__to, const char __user *__from,
- long __len);
-extern long strnlen_user(const char __user *s, long n);
+ long __len);
+extern __must_check long strlen_user(const char __user *str);
+extern __must_check long strnlen_user(const char __user *s, long n);
/* Optimized macros */
#define __get_user_asm(val, insn, addr, err) \