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[Xen-devel] [PATCH v3 03/15] argo: define argo_dprintk for subsystem debugging



A convenience for working on development of the argo subsystem:
setting a #define variable enables additional debug messages.

Signed-off-by: Christopher Clark <christopher.clark6@xxxxxxxxxxxxxx>
---
v2 #03 feedback, Jan: fix ifdef/define confusion error
v1 #04 feedback, Jan: fix dprintk implementation

 xen/common/argo.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/xen/common/argo.c b/xen/common/argo.c
index d69ad7c..6f782f7 100644
--- a/xen/common/argo.c
+++ b/xen/common/argo.c
@@ -19,6 +19,15 @@
 #include <xen/errno.h>
 #include <xen/guest_access.h>
 
+/* Change this to #define ARGO_DEBUG here to enable more debug messages */
+#undef ARGO_DEBUG
+
+#ifdef ARGO_DEBUG
+#define argo_dprintk(format, args...) printk("argo: " format, ## args )
+#else
+#define argo_dprintk(format, ... ) ((void)0)
+#endif
+
 long
 do_argo_op(unsigned int cmd, XEN_GUEST_HANDLE_PARAM(void) arg1,
            XEN_GUEST_HANDLE_PARAM(void) arg2, unsigned long arg3,
-- 
2.7.4


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