MIPS: lib: strncpy_user: Add EVA support
In non-EVA mode, strncpy_from_user* aliases are used for the
strncpy_from_kernel* symbols since the code is identical. In EVA
mode, new strcpy_from_user* symbols are used which use the EVA
specific instructions to load values from userspace.
Signed-off-by: Markos Chandras <markos.chandras@imgtec.com>
diff --git a/arch/mips/kernel/mips_ksyms.c b/arch/mips/kernel/mips_ksyms.c
index 742ed7d..675bd05 100644
--- a/arch/mips/kernel/mips_ksyms.c
+++ b/arch/mips/kernel/mips_ksyms.c
@@ -16,6 +16,10 @@
#include <asm/ftrace.h>
extern void *__bzero(void *__s, size_t __count);
+extern long __strncpy_from_kernel_nocheck_asm(char *__to,
+ const char *__from, long __len);
+extern long __strncpy_from_kernel_asm(char *__to, const char *__from,
+ long __len);
extern long __strncpy_from_user_nocheck_asm(char *__to,
const char *__from, long __len);
extern long __strncpy_from_user_asm(char *__to, const char *__from,
@@ -48,6 +52,8 @@
EXPORT_SYMBOL(__copy_user);
EXPORT_SYMBOL(__copy_user_inatomic);
EXPORT_SYMBOL(__bzero);
+EXPORT_SYMBOL(__strncpy_from_kernel_nocheck_asm);
+EXPORT_SYMBOL(__strncpy_from_kernel_asm);
EXPORT_SYMBOL(__strncpy_from_user_nocheck_asm);
EXPORT_SYMBOL(__strncpy_from_user_asm);
EXPORT_SYMBOL(__strlen_kernel_nocheck_asm);