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From: Marcel Moolenaar <marcel@FreeBSD.org>
Date: Sun, 16 Aug 2009 01:48:46 +0000 (UTC)
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Cc: 
Subject: svn commit: r196269 -
	head/sys/cddl/contrib/opensolaris/common/nvpair
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Author: marcel
Date: Sun Aug 16 01:48:46 2009
New Revision: 196269
URL: http://svn.freebsd.org/changeset/base/196269

Log:
  Fix misalignment in nvpair_native_embedded() caused by the compiler
  replacing the bzero(). See also revision 195627, which fixed the
  misalignment in nvpair_native_embedded_array().
  
  Approved by:	re (kensmith)

Modified:
  head/sys/cddl/contrib/opensolaris/common/nvpair/nvpair.c

Modified: head/sys/cddl/contrib/opensolaris/common/nvpair/nvpair.c
==============================================================================
--- head/sys/cddl/contrib/opensolaris/common/nvpair/nvpair.c	Sun Aug 16 01:43:08 2009	(r196268)
+++ head/sys/cddl/contrib/opensolaris/common/nvpair/nvpair.c	Sun Aug 16 01:48:46 2009	(r196269)
@@ -2523,14 +2523,15 @@ nvpair_native_embedded(nvstream_t *nvs, 
 {
 	if (nvs->nvs_op == NVS_OP_ENCODE) {
 		nvs_native_t *native = (nvs_native_t *)nvs->nvs_private;
-		nvlist_t *packed = (void *)
+		char *packed = (void *)
 		    (native->n_curr - nvp->nvp_size + NVP_VALOFF(nvp));
 		/*
 		 * Null out the pointer that is meaningless in the packed
 		 * structure. The address may not be aligned, so we have
 		 * to use bzero.
 		 */
-		bzero(&packed->nvl_priv, sizeof (packed->nvl_priv));
+		bzero(packed + offsetof(nvlist_t, nvl_priv),
+		    sizeof(((nvlist_t *)NULL)->nvl_priv));
 	}
 
 	return (nvs_embedded(nvs, EMBEDDED_NVL(nvp)));