[Qemu-devel] [PATCH] Flexible array should be last in struct mbuf

[Elie Richa]

The flexible array member should remain the last member in the structure
as this assumption is based upon in the code.

Signed-off-by: Elie Richa <ri...@adacore.com>
---
 slirp/mbuf.h |    7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/slirp/mbuf.h b/slirp/mbuf.h
index 55170e5..e13ff71 100644
--- a/slirp/mbuf.h
+++ b/slirp/mbuf.h
@@ -82,12 +82,13 @@ struct m_hdr {
 struct mbuf {
        struct  m_hdr m_hdr;
        Slirp *slirp;
+       bool     arp_requested;
+       uint64_t expiration_date;
        union M_dat {
                char    m_dat_[1]; /* ANSI don't like 0 sized arrays */
                char    *m_ext_;
-       } M_dat;
-    bool     arp_requested;
-    uint64_t expiration_date;
+       } M_dat; /* This is a "flexible array member". It should always remain
+                    the last member of the structure */
 };
 
 #define m_next         m_hdr.mh_next
-- 
1.7.4.1