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0ad8404e77
Add dst_entry to tunnel device path, this will allow us to remove a duplicated route lookup. This is a preparation patch to retrieve the tunnel route directly from the .fill_forward_path. This new dst_entry in the tunnel will be used by a follow up patch. Since dst_release() works fine on NULL interface, this is still noop until the flowtable starts using this. Add a new dev_fill_forward_path_release() function to drop the refcount on the tunnel device route and use it in case of error out. Export it so to drop the refcount on the tunnel route at a later stage. Adjust existing drivers that recycle dev_fill_forward_path() to call dev_fill_forward_path_release() for safety reasons. Acked-by: Lorenzo Bianconi <lorenzo@kernel.org> Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>