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avoid compiler warning about cast in OFFSET_OF macro

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* dmsetup/dmsetup.c (OFFSET_OF): Use an equivalent definition
that does not cast a pointer value to a narrower type.
This commit is contained in:
Jim Meyering 2008-06-18 10:19:25 +00:00
parent 0187112396
commit dacf86a12d
2 changed files with 3 additions and 2 deletions
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1
WHATS_NEW_DM
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@ -1,5 +1,6 @@
Version 1.02.27 -
===============================
Avoid compiler warning about cast in dmsetup.c's OFFSET_OF macro.
Fix inverted no_flush debug message.
Remove --enable-jobs from configure. (Set at runtime instead.)
Bring configure.in and list.h into line with the lvm2 versions.

4
tools/dmsetup.c
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@ -1,6 +1,6 @@
/*
* Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
* Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved.
* Copyright (C) 2004-2008 Red Hat, Inc. All rights reserved.
* Copyright (C) 2005-2007 NEC Corporation
*
* This file is part of the device-mapper userspace tools.
@ -1927,7 +1927,7 @@ static const struct dm_report_object_type _report_types[] = {
};
/* Column definitions */
#define OFFSET_OF(strct, field) ((unsigned int) &((struct strct *)NULL)->field)
#define OFFSET_OF(strct, field) (((char*)&((struct strct*)0)->field) - (char*)0)
#define STR (DM_REPORT_FIELD_TYPE_STRING)
#define NUM (DM_REPORT_FIELD_TYPE_NUMBER)
#define FIELD_O(type, strct, sorttype, head, field, width, func, id, desc) {DR_ ## type, sorttype, OFFSET_OF(strct, field), width, id, head, &_ ## func ## _disp, desc},