xfs: annotate user variables passed as void

Some argument callbacks can contain user buffers, and sparse warns
about passing them as void pointers. Cast appropriately to remove
the sparse warnings.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>

1 files changed, 4 insertions, 4 deletions

diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index 3799695b9249..7a6b406ce6c9 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -1349,7 +1349,7 @@ xfs_ioc_setxflags(
 STATIC int
 xfs_getbmap_format(void **ap, struct getbmapx *bmv, int *full)
 {
-        struct getbmap __user   *base = *ap;
+        struct getbmap __user   *base = (struct getbmap __user *)*ap;
 
         /* copy only getbmap portion (not getbmapx) */
         if (copy_to_user(base, bmv, sizeof(struct getbmap)))
@@ -1380,7 +1380,7 @@ xfs_ioc_getbmap(
                 bmx.bmv_iflags |= BMV_IF_NO_DMAPI_READ;
 
         error = xfs_getbmap(ip, &bmx, xfs_getbmap_format,
-                            (struct getbmap *)arg+1);
+                            (__force struct getbmap *)arg+1);
         if (error)
                 return error;
 
@@ -1393,7 +1393,7 @@ xfs_ioc_getbmap(
 STATIC int
 xfs_getbmapx_format(void **ap, struct getbmapx *bmv, int *full)
 {
-        struct getbmapx __user  *base = *ap;
+        struct getbmapx __user  *base = (struct getbmapx __user *)*ap;
 
         if (copy_to_user(base, bmv, sizeof(struct getbmapx)))
                 return -EFAULT;
@@ -1420,7 +1420,7 @@ xfs_ioc_getbmapx(
                 return -EINVAL;
 
         error = xfs_getbmap(ip, &bmx, xfs_getbmapx_format,
-                            (struct getbmapx *)arg+1);
+                            (__force struct getbmapx *)arg+1);
         if (error)
                 return error;