From 3a9f95ab03988cd1d4755f6da7c9a24b0c9ff121 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Nov 11 2016 05:22:48 +0000
Subject: driver: internals: added the static inlined mdso_get_driver_ictx() helper.


---

diff --git a/src/internal/mdso_driver_impl.h b/src/internal/mdso_driver_impl.h
index c6131b8..f43b790 100644
--- a/src/internal/mdso_driver_impl.h
+++ b/src/internal/mdso_driver_impl.h
@@ -46,4 +46,17 @@ struct mdso_unit_ctx_impl {
 	struct mdso_unit_ctx	uctx;
 };
 
+static inline struct mdso_driver_ctx_impl * mdso_get_driver_ictx(
+	const struct mdso_driver_ctx * dctx)
+{
+        uintptr_t addr;
+
+        if (dctx) {
+                addr = (uintptr_t)dctx - offsetof(struct mdso_driver_ctx_impl,ctx);
+                return (struct mdso_driver_ctx_impl *)addr;
+        }
+
+        return 0;
+}
+
 #endif