mm/compat: convert to COMPAT_SYSCALL_DEFINE

Convert all compat system call functions where all parameter types
have a size of four or less than four bytes, or are pointer types
to COMPAT_SYSCALL_DEFINE.
The implicit casts within COMPAT_SYSCALL_DEFINE will perform proper
zero and sign extension to 64 bit of all parameters if needed.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

mm/mempolicy.c

@@ -1556,10 +1556,10 @@ SYSCALL_DEFINE5(get_mempolicy, int __user *, policy,
 
 #ifdef CONFIG_COMPAT
 
-asmlinkage long compat_sys_get_mempolicy(int __user *policy,
-				     compat_ulong_t __user *nmask,
-				     compat_ulong_t maxnode,
-				     compat_ulong_t addr, compat_ulong_t flags)
+COMPAT_SYSCALL_DEFINE5(get_mempolicy, int __user *, policy,
+		       compat_ulong_t __user *, nmask,
+		       compat_ulong_t, maxnode,
+		       compat_ulong_t, addr, compat_ulong_t, flags)
 {
 	long err;
 	unsigned long __user *nm = NULL;
@@ -1586,8 +1586,8 @@ asmlinkage long compat_sys_get_mempolicy(int __user *policy,
 	return err;
 }
 
-asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
-				     compat_ulong_t maxnode)
+COMPAT_SYSCALL_DEFINE3(set_mempolicy, int, mode, compat_ulong_t __user *, nmask,
+		       compat_ulong_t, maxnode)
 {
 	long err = 0;
 	unsigned long __user *nm = NULL;
@@ -1609,9 +1609,9 @@ asmlinkage long compat_sys_set_mempolicy(int mode, compat_ulong_t __user *nmask,
 	return sys_set_mempolicy(mode, nm, nr_bits+1);
 }
 
-asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
-			     compat_ulong_t mode, compat_ulong_t __user *nmask,
-			     compat_ulong_t maxnode, compat_ulong_t flags)
+COMPAT_SYSCALL_DEFINE6(mbind, compat_ulong_t, start, compat_ulong_t, len,
+		       compat_ulong_t, mode, compat_ulong_t __user *, nmask,
+		       compat_ulong_t, maxnode, compat_ulong_t, flags)
 {
 	long err = 0;
 	unsigned long __user *nm = NULL;