[lvm-devel] [PATCH 4/6] Cleanup compiler pointer cast warning
Zdenek Kabelac
zkabelac at redhat.com
Wed Jan 13 13:35:55 UTC 2010
Cleanup gcc warning: cast from function call of type 'struct dm_list *'
to non-matching type 'long unsigned int'
Casting pointer to long and back to pointer could be easily
handled with just pointer arithmetic.
Signed-off-by: Zdenek Kabelac <zkabelac at redhat.com>
---
libdm/libdevmapper.h | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/libdm/libdevmapper.h b/libdm/libdevmapper.h
index d4c02ca..579cc14 100644
--- a/libdm/libdevmapper.h
+++ b/libdm/libdevmapper.h
@@ -754,7 +754,7 @@ struct dm_list *dm_list_next(const struct dm_list *head, const struct dm_list *e
* contained in a structure of type t, return the containing structure.
*/
#define dm_list_struct_base(v, t, head) \
- ((t *)((uintptr_t)(v) - (uintptr_t)&((t *) 0)->head))
+ ((t *)((char*)(v) - (char*)&((t *) 0)->head))
/*
* Given the address v of an instance of 'struct dm_list list' contained in
--
1.6.6
More information about the lvm-devel
mailing list