On Tue, 30 Jul 2013 15:17:21 -0700
Pravin Shelar [off-list ref] wrote:

On Tue, Jul 30, 2013 at 1:18 PM, Stephen Hemminger
[off-list ref] wrote:

quoted

Vxlan remote list is protected by RCU but since first_remote
returns a bare pointer, sparse complains.
Split out the rcu and non-rcu access to the list.

Ok to replace list_for_or_null with just list_entry_rcu because
remotes list must be non-empty.

I am still getting following sparse waning.

  CHECK   drivers/net/vxlan.c
drivers/net/vxlan.c:181:16: warning: incorrect type in return
expression (different address spaces)
drivers/net/vxlan.c:181:16:    expected struct vxlan_rdst [noderef] <asn:4>*
drivers/net/vxlan.c:181:16:    got struct vxlan_rdst *<noident>
drivers/net/vxlan.c:748:59: warning: incorrect type in initializer
(different address spaces)
drivers/net/vxlan.c:748:59:    expected struct vxlan_rdst *rdst
drivers/net/vxlan.c:748:59:    got struct vxlan_rdst [noderef] <asn:4>*
drivers/net/vxlan.c:181:16: warning: incorrect type in return
expression (different address spaces)
drivers/net/vxlan.c:181:16:    expected struct vxlan_rdst [noderef] <asn:4>*
drivers/net/vxlan.c:181:16:    got struct vxlan_rdst *<noident>
drivers/net/vxlan.c:996:42: warning: dereference of noderef expression
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Which version of sparse? I don't see this with latest version.