Index: uspace/lib/c/generic/async/ports.c
===================================================================
--- uspace/lib/c/generic/async/ports.c	(revision ab87db55cb5f202637cfdb407053e0d954a16e7d)
+++ uspace/lib/c/generic/async/ports.c	(revision 87a57963770ed25144cc5465eac8c036c70d4201)
@@ -103,8 +103,8 @@
 static hash_table_t interface_hash_table;
 
-static size_t interface_key_hash(void *key)
-{
-	iface_t iface = *(iface_t *) key;
-	return iface;
+static size_t interface_key_hash(const void *key)
+{
+	const iface_t *iface = key;
+	return *iface;
 }
 
@@ -115,9 +115,9 @@
 }
 
-static bool interface_key_equal(void *key, const ht_link_t *item)
-{
-	iface_t iface = *(iface_t *) key;
+static bool interface_key_equal(const void *key, const ht_link_t *item)
+{
+	const iface_t *iface = key;
 	interface_t *interface = hash_table_get_inst(item, interface_t, link);
-	return iface == interface->iface;
+	return *iface == interface->iface;
 }
 
@@ -131,8 +131,8 @@
 };
 
-static size_t port_key_hash(void *key)
-{
-	port_id_t port_id = *(port_id_t *) key;
-	return port_id;
+static size_t port_key_hash(const void *key)
+{
+	const port_id_t *port_id = key;
+	return *port_id;
 }
 
@@ -143,9 +143,9 @@
 }
 
-static bool port_key_equal(void *key, const ht_link_t *item)
-{
-	port_id_t port_id = *(port_id_t *) key;
+static bool port_key_equal(const void *key, const ht_link_t *item)
+{
+	const port_id_t *port_id = key;
 	port_t *port = hash_table_get_inst(item, port_t, link);
-	return port_id == port->id;
+	return *port_id == port->id;
 }
 
Index: uspace/lib/c/generic/async/server.c
===================================================================
--- uspace/lib/c/generic/async/server.c	(revision ab87db55cb5f202637cfdb407053e0d954a16e7d)
+++ uspace/lib/c/generic/async/server.c	(revision 87a57963770ed25144cc5465eac8c036c70d4201)
@@ -231,8 +231,8 @@
 static sysarg_t notification_avail = 0;
 
-static size_t client_key_hash(void *key)
-{
-	task_id_t in_task_id = *(task_id_t *) key;
-	return in_task_id;
+static size_t client_key_hash(const void *key)
+{
+	const task_id_t *in_task_id = key;
+	return *in_task_id;
 }
 
@@ -243,9 +243,9 @@
 }
 
-static bool client_key_equal(void *key, const ht_link_t *item)
-{
-	task_id_t in_task_id = *(task_id_t *) key;
+static bool client_key_equal(const void *key, const ht_link_t *item)
+{
+	const task_id_t *in_task_id = key;
 	client_t *client = hash_table_get_inst(item, client_t, link);
-	return in_task_id == client->in_task_id;
+	return *in_task_id == client->in_task_id;
 }
 
@@ -490,8 +490,8 @@
 }
 
-static size_t notification_key_hash(void *key)
-{
-	sysarg_t id = *(sysarg_t *) key;
-	return id;
+static size_t notification_key_hash(const void *key)
+{
+	const sysarg_t *id = key;
+	return *id;
 }
 
@@ -503,10 +503,10 @@
 }
 
-static bool notification_key_equal(void *key, const ht_link_t *item)
-{
-	sysarg_t id = *(sysarg_t *) key;
+static bool notification_key_equal(const void *key, const ht_link_t *item)
+{
+	const sysarg_t *id = key;
 	notification_t *notification =
 	    hash_table_get_inst(item, notification_t, htlink);
-	return id == notification->imethod;
+	return *id == notification->imethod;
 }