vfio: platform: introduce module_vfio_reset_handler macro

The module_vfio_reset_handler macro
- define a module alias
- implement module init/exit function which respectively registers
  and unregisters the reset function.

Signed-off-by: Eric Auger <eric.auger@linaro.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

diff --git a/drivers/vfio/platform/vfio_platform_private.h b/drivers/vfio/platform/vfio_platform_private.h
index c563940e0f6b8aa2a88052595d60601a7443cbda..fd262be2a443d5fa2b0083a5be9609efcdeb47f6 100644 (file)
--- a/drivers/vfio/platform/vfio_platform_private.h
+++ b/drivers/vfio/platform/vfio_platform_private.h
@@ -110,4 +110,18 @@ static struct vfio_platform_reset_node __reset ## _node = {        \
 };                                                             \
 __vfio_platform_register_reset(&__reset ## _node)
 
+#define module_vfio_reset_handler(compat, reset)               \
+MODULE_ALIAS("vfio-reset:" compat);                            \
+static int __init reset ## _module_init(void)                  \
+{                                                              \
+       vfio_platform_register_reset(compat, reset);            \
+       return 0;                                               \
+};                                                             \
+static void __exit reset ## _module_exit(void)                 \
+{                                                              \
+       vfio_platform_unregister_reset(compat, reset);          \
+};                                                             \
+module_init(reset ## _module_init);                            \
+module_exit(reset ## _module_exit)
+
 #endif /* VFIO_PLATFORM_PRIVATE_H */