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-rw-r--r--drivers/s390/cio/css.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index 81215ef32435..1d8306cc74c4 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -134,6 +134,8 @@ struct css_driver {
void (*shutdown)(struct subchannel *);
};
+#define to_cssdriver(n) container_of(n, struct css_driver, drv)
+
/*
* all css_drivers have the css_bus_type
*/