disable kernel build waring

hc

2024-05-10 093a6c67005148ae32a5c9e4553491b9f5c2457b

 kernel/drivers/net/xen-netback/common.h
..
..
@@ -166,7 +166,7 @@
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 	struct pending_tx_info pending_tx_info[MAX_PENDING_REQS];
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 	grant_handle_t grant_tx_handle[MAX_PENDING_REQS];
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-	struct gnttab_copy tx_copy_ops[MAX_PENDING_REQS];
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+	struct gnttab_copy tx_copy_ops[2 * MAX_PENDING_REQS];
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 	struct gnttab_map_grant_ref tx_map_ops[MAX_PENDING_REQS];
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 	struct gnttab_unmap_grant_ref tx_unmap_ops[MAX_PENDING_REQS];
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 	/* passed to gnttab_[un]map_refs with pages under (un)mapping */