1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/char/drm/radeon_ioc32.c b/drivers/char/drm/radeon_ioc32.c
index 04126c2e79ab..56decda2a71f 100644
--- a/drivers/char/drm/radeon_ioc32.c
+++ b/drivers/char/drm/radeon_ioc32.c
@@ -349,6 +349,8 @@ static int compat_radeon_irq_emit(struct file *file, unsigned int cmd,
                          DRM_IOCTL_RADEON_IRQ_EMIT, (unsigned long)request);
 }
 
+/* The two 64-bit arches where alignof(u64)==4 in 32-bit code */
+#if defined (CONFIG_X86_64) || defined(CONFIG_IA64)
 typedef struct drm_radeon_setparam32 {
         int param;
         u64 value;
@@ -373,6 +375,9 @@ static int compat_radeon_cp_setparam(struct file *file, unsigned int cmd,
         return drm_ioctl(file->f_dentry->d_inode, file,
                          DRM_IOCTL_RADEON_SETPARAM, (unsigned long) request);
 }
+#else
+#define compat_radeon_cp_setparam NULL
+#endif /* X86_64 || IA64 */
 
 drm_ioctl_compat_t *radeon_compat_ioctls[] = {
         [DRM_RADEON_CP_INIT] = compat_radeon_cp_init,