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diff --git a/sys/compat/linuxkpi/common/include/linux/rhashtable.h b/sys/compat/linuxkpi/common/include/linux/rhashtable.h
new file mode 100644
--- /dev/null
+++ b/sys/compat/linuxkpi/common/include/linux/rhashtable.h
@@ -0,0 +1,89 @@
+/*-
+ * Copyright (c) 2023 Bjoern A. Zeeb
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _LINUXKPI_LINUX_RHASHTABLE_H
+#define _LINUXKPI_LINUX_RHASHTABLE_H
+
+#include <linux/kernel.h> /* pr_debug */
+
+struct rhash_head {
+};
+
+struct rhashtable_params {
+ int automatic_shrinking;
+ int head_offset;
+ int key_len;
+ int key_offset;
+ int nelem_hint;
+};
+
+struct rhashtable {
+};
+
+static inline int
+rhashtable_init(struct rhashtable *rht,
+ const struct rhashtable_params *params)
+{
+
+ pr_debug("%s: TODO\n", __func__);
+ return (-1);
+}
+
+static inline void
+rhashtable_destroy(struct rhashtable *rht)
+{
+ pr_debug("%s: TODO\n", __func__);
+}
+
+static inline void *
+rhashtable_lookup_fast(struct rhashtable *rht, const void *key,
+ const struct rhashtable_params params)
+{
+
+ pr_debug("%s: TODO\n", __func__);
+ return (NULL);
+}
+
+static inline void *
+rhashtable_lookup_get_insert_fast(struct rhashtable *rht,
+ struct rhash_head *obj, const struct rhashtable_params params)
+{
+
+ pr_debug("%s: TODO\n", __func__);
+ return (NULL);
+}
+
+static inline int
+rhashtable_remove_fast(struct rhashtable *rht,
+ struct rhash_head *obj, const struct rhashtable_params params)
+{
+
+ pr_debug("%s: TODO\n", __func__);
+ return (-ENOENT);
+}
+
+#endif /* _LINUXKPI_LINUX_RHASHTABLE_H */

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