s390: remove native mmap2() syscall

The mmap2() syscall has never been used on 64-bit s390x and should
have been removed as part of 5a79859ae0f3 ("s390: remove 31 bit
support").

Remove it now.

Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

diff --git a/arch/s390/kernel/syscall.c b/arch/s390/kernel/syscall.c
index dc2355c623d6ea1edf86c0e5f137db89bf9b07b7..50cbcbbaa03d128010d3a24d87393b5ed2a77ec9 100644 (file)
--- a/arch/s390/kernel/syscall.c
+++ b/arch/s390/kernel/syscall.c
@@ -38,33 +38,6 @@
 
 #include "entry.h"
 
-/*
- * Perform the mmap() system call. Linux for S/390 isn't able to handle more
- * than 5 system call parameters, so this system call uses a memory block
- * for parameter passing.
- */
-
-struct s390_mmap_arg_struct {
-       unsigned long addr;
-       unsigned long len;
-       unsigned long prot;
-       unsigned long flags;
-       unsigned long fd;
-       unsigned long offset;
-};
-
-SYSCALL_DEFINE1(mmap2, struct s390_mmap_arg_struct __user *, arg)
-{
-       struct s390_mmap_arg_struct a;
-       int error = -EFAULT;
-
-       if (copy_from_user(&a, arg, sizeof(a)))
-               goto out;
-       error = ksys_mmap_pgoff(a.addr, a.len, a.prot, a.flags, a.fd, a.offset);
-out:
-       return error;
-}
-
 #ifdef CONFIG_SYSVIPC
 /*
  * sys_ipc() is the de-multiplexer for the SysV IPC calls.