[xen master] tools/libfsimage: remove private offsetof() definition

[patchbot@xxxxxxx]

commit 6ca13bec086c361079b91e130921acc8d5de7ef8
Author:     Juergen Gross <jgross@xxxxxxxx>
AuthorDate: Fri Mar 24 11:14:11 2023 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Mar 24 11:14:11 2023 +0100

    tools/libfsimage: remove private offsetof() definition
    
    xfs/fsys_xfs.c is defining offsetof privately. Remove that definition
    and just use stddef.h instead.
    
    Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
    Acked-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>
---
 tools/libfsimage/xfs/fsys_xfs.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/tools/libfsimage/xfs/fsys_xfs.c b/tools/libfsimage/xfs/fsys_xfs.c
index d735a88e55..b8b4ca928c 100644
--- a/tools/libfsimage/xfs/fsys_xfs.c
+++ b/tools/libfsimage/xfs/fsys_xfs.c
@@ -17,6 +17,7 @@
  *  along with this program; If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <stddef.h>
 #include <xenfsimage_grub.h>
 #include "xfs.h"
 
@@ -182,9 +183,6 @@ fsb2daddr (xfs_fsblock_t fsbno)
                         (xfs_agblock_t)(fsbno & mask32lo(xfs.agblklog)));
 }
 
-#undef offsetof
-#define offsetof(t,m)  ((size_t)&(((t *)0)->m))
-
 static inline int
 btroot_maxrecs (fsi_file_t *ffi)
 {
--
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