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From: Gleb Smirnoff <glebius@FreeBSD.org>
Date: Tue, 7 Mar 2017 19:00:51 +0000 (UTC)
To: src-committers@freebsd.org, svn-src-all@freebsd.org,
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Subject: svn commit: r314876 - in head/sys: kern sys
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Author: glebius
Date: Tue Mar  7 19:00:50 2017
New Revision: 314876
URL: https://svnweb.freebsd.org/changeset/base/314876

Log:
  m_mbuftouio() doesn't modify the mbuf.

Modified:
  head/sys/kern/uipc_mbuf.c
  head/sys/sys/mbuf.h

Modified: head/sys/kern/uipc_mbuf.c
==============================================================================
--- head/sys/kern/uipc_mbuf.c	Tue Mar  7 19:00:27 2017	(r314875)
+++ head/sys/kern/uipc_mbuf.c	Tue Mar  7 19:00:50 2017	(r314876)
@@ -1561,7 +1561,7 @@ m_uiotombuf(struct uio *uio, int how, in
  * Copy an mbuf chain into a uio limited by len if set.
  */
 int
-m_mbuftouio(struct uio *uio, struct mbuf *m, int len)
+m_mbuftouio(struct uio *uio, const struct mbuf *m, int len)
 {
 	int error, length, total;
 	int progress = 0;

Modified: head/sys/sys/mbuf.h
==============================================================================
--- head/sys/sys/mbuf.h	Tue Mar  7 19:00:27 2017	(r314875)
+++ head/sys/sys/mbuf.h	Tue Mar  7 19:00:50 2017	(r314876)
@@ -614,7 +614,7 @@ struct mbuf	*m_getjcl(int, short, int, i
 struct mbuf	*m_getm2(struct mbuf *, int, int, short, int);
 struct mbuf	*m_getptr(struct mbuf *, int, int *);
 u_int		 m_length(struct mbuf *, struct mbuf **);
-int		 m_mbuftouio(struct uio *, struct mbuf *, int);
+int		 m_mbuftouio(struct uio *, const struct mbuf *, int);
 void		 m_move_pkthdr(struct mbuf *, struct mbuf *);
 int		 m_pkthdr_init(struct mbuf *, int);
 struct mbuf	*m_prepend(struct mbuf *, int, int);