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 fd26d0433509..3c5cf68566ec 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);