include: constify nlexpr field in location structure

The location shouldn't ever alter the expression.

And this fixes this compilation warning:

netlink_delinearize.c: In function ‘netlink_parse_expr’:
netlink_delinearize.c:1008:10: warning: assignment discards ‘const’ qualifier from pointer target type
  loc.nle = nle;
          ^
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

diff --git a/include/nftables.h b/include/nftables.h
index cf19de82cbb038953b9d6d17fd816b4056fc2710..d3f471b7c6c1054ff186ba32492c889c24987d3e 100644 (file)
--- a/include/nftables.h
+++ b/include/nftables.h
@@ -52,7 +52,7 @@ struct location {
                        unsigned int            last_column;
                };
                struct {
-                       void                    *nle;
+                       const void              *nle;
                };
        };
 };