[iptables PATCH 05/12] xtables-save: Fix table compatibility check

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The builtin table check guarding the 'is incompatible' warning was
wrong: The idea was to print the warning only for incompatible tables
which are builtin, not for others. Yet the code would print the warning
only for non-builtin ones.

Also reorder the checks: nft_table_builtin_find() is fast and therefore
a quick way to bail for uninteresting tables. The compatibility check is
needed for the remaining tables, only.

Signed-off-by: Phil Sutter <phil@xxxxxx>
---
 iptables/xtables-save.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/iptables/xtables-save.c b/iptables/xtables-save.c
index 0cf11f998cc77..811ec6330a4cb 100644
--- a/iptables/xtables-save.c
+++ b/iptables/xtables-save.c
@@ -67,11 +67,12 @@ __do_output(struct nft_handle *h, const char *tablename, bool counters)
 {
 	struct nftnl_chain_list *chain_list;
 
+	if (!nft_table_builtin_find(h, tablename))
+		return 0;
 
 	if (!nft_is_table_compatible(h, tablename)) {
-		if (!nft_table_builtin_find(h, tablename))
-			printf("# Table `%s' is incompatible, use 'nft' tool.\n",
-			       tablename);
+		printf("# Table `%s' is incompatible, use 'nft' tool.\n",
+		       tablename);
 		return 0;
 	}
 
-- 
2.22.0




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