qemu/qemu-plugin: Make qemu_plugin_hwaddr_is_io() hwaddr argument const

Rename qemu_plugin_hwaddr_is_io() address argument 'haddr'
similarly to qemu_plugin_hwaddr_device_offset(), and make
it const.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200510171119.20827-4-f4bug@amsat.org>
Message-Id: <20200513173200.11830-4-alex.bennee@linaro.org>

include/qemu/qemu-plugin.h

@@ -331,7 +331,7 @@ struct qemu_plugin_hwaddr *qemu_plugin_get_hwaddr(qemu_plugin_meminfo_t info,
  * to return information about it. For non-IO accesses the device
  * offset will be into the appropriate block of RAM.
  */
-bool qemu_plugin_hwaddr_is_io(struct qemu_plugin_hwaddr *hwaddr);
+bool qemu_plugin_hwaddr_is_io(const struct qemu_plugin_hwaddr *haddr);
 uint64_t qemu_plugin_hwaddr_device_offset(const struct qemu_plugin_hwaddr *haddr);
 
 typedef void

plugins/api.c

@@ -275,10 +275,10 @@ struct qemu_plugin_hwaddr *qemu_plugin_get_hwaddr(qemu_plugin_meminfo_t info,
 }
 #endif
 
-bool qemu_plugin_hwaddr_is_io(struct qemu_plugin_hwaddr *hwaddr)
+bool qemu_plugin_hwaddr_is_io(const struct qemu_plugin_hwaddr *haddr)
 {
 #ifdef CONFIG_SOFTMMU
-    return hwaddr->is_io;
+    return haddr->is_io;
 #else
     return false;
 #endif