[PATCH v3 3/7] vfio: platform: introduce module_vfio_reset_handler macro

Eric Auger
2015-10-23T12:37:29Z

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>

---
v2 -> v3:
- use vfio_platform_register_reset macro

v1 -> v2:
- remove vfio_platform_reset_private.h and move back the macro to
vfio_platform_private.h header: removed reset_module_register &
unregister (symbol_get)
- defines the module_vfio_reset_handler macro as suggested by Arnd
(formerly in vfio_platform_reset_private.h)
---
drivers/vfio/platform/vfio_platform_private.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)

diff --git a/drivers/vfio/platform/vfio_platform_private.h b/drivers/vfio/platform/vfio_platform_private.h
index 277521a..5a1e8e6 100644
--- 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); \
+}; \
+module_init(reset ## _module_init); \
+module_exit(reset ## _module_exit)
+
#endif /* VFIO_PLATFORM_PRIVATE_H */
--
1.9.1