mm/compat: convert to COMPAT_SYSCALL_DEFINE with changing parameter types

In order to allow the COMPAT_SYSCALL_DEFINE macro generate code that
performs proper zero and sign extension convert all 64 bit parameters
to their corresponding 32 bit compat counterparts.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

1 files changed, 12 insertions, 14 deletions

diff --git a/mm/process_vm_access.c b/mm/process_vm_access.c
index fd26d04..3c5cf68 100644
--- a/mm/process_vm_access.c
+++ b/mm/process_vm_access.c
@@ -456,25 +456,23 @@ free_iovecs:
 	return rc;
 }
 
-asmlinkage ssize_t
-compat_sys_process_vm_readv(compat_pid_t pid,
-			    const struct compat_iovec __user *lvec,
-			    unsigned long liovcnt,
-			    const struct compat_iovec __user *rvec,
-			    unsigned long riovcnt,
-			    unsigned long flags)
+COMPAT_SYSCALL_DEFINE6(process_vm_readv, compat_pid_t, pid,
+		       const struct compat_iovec __user *, lvec,
+		       compat_ulong_t, liovcnt,
+		       const struct compat_iovec __user *, rvec,
+		       compat_ulong_t, riovcnt,
+		       compat_ulong_t, flags)
 {
 	return compat_process_vm_rw(pid, lvec, liovcnt, rvec,
 				    riovcnt, flags, 0);
 }
 
-asmlinkage ssize_t
-compat_sys_process_vm_writev(compat_pid_t pid,
-			     const struct compat_iovec __user *lvec,
-			     unsigned long liovcnt,
-			     const struct compat_iovec __user *rvec,
-			     unsigned long riovcnt,
-			     unsigned long flags)
+COMPAT_SYSCALL_DEFINE6(process_vm_writev, compat_pid_t, pid,
+		       const struct compat_iovec __user *, lvec,
+		       compat_ulong_t, liovcnt,
+		       const struct compat_iovec __user *, rvec,
+		       compat_ulong_t, riovcnt,
+		       compat_ulong_t, flags)
 {
 	return compat_process_vm_rw(pid, lvec, liovcnt, rvec,
 				    riovcnt, flags, 1);