Thread (7 messages) 7 messages, 5 authors, 2016-09-21

[PATCH net-next V2] net/vxlan: Avoid unaligned access in vxlan_build_skb()

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From: Sowmini Varadhan <hidden>
Date: 2016-09-20 18:57:59
Subsystem: networking [general], the rest · Maintainers: "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds

The vxlan header may not be aligned to 4 bytes in
vxlan_build_skb (e.g., for MLD packets). This patch
avoids unaligned access traps from vxlan_build_skb
(in platforms like sparc) by making struct vxlanhdr __packed.

Signed-off-by: Sowmini Varadhan <redacted>
---
 include/net/vxlan.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index 0255613..1ec56f4 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -18,7 +18,7 @@
 struct vxlanhdr {
 	__be32 vx_flags;
 	__be32 vx_vni;
-};
+} __packed;
 
 /* VXLAN header flags. */
 #define VXLAN_HF_VNI	cpu_to_be32(BIT(27))
-- 
1.7.1
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