dm: core: Create a new header file for 'compat' features
At present dm/device.h includes the linux-compatible features. This
requires including linux/compat.h which in turn includes a lot of headers.
One of these is malloc.h which we thus end up including in every file in
U-Boot. Apart from the inefficiency of this, it is problematic for sandbox
which needs to use the system malloc() in some files.
Move the compatibility features into a separate header file.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/test/dm/mailbox.c b/test/dm/mailbox.c
index 4562d2a..e6c521b 100644
--- a/test/dm/mailbox.c
+++ b/test/dm/mailbox.c
@@ -5,6 +5,7 @@
#include <common.h>
#include <dm.h>
+#include <malloc.h>
#include <dm/test.h>
#include <asm/mbox.h>
#include <test/ut.h>