From: Eric Blake <ebl...@redhat.com>
Rework the debug define so that we always get -Wformat checking,
even when debugging is disabled.
Signed-off-by: Eric Blake <ebl...@redhat.com>
Reviewed-by: Stefan Weil <s...@weilnetz.de>
Reviewed-by: Philippe Mathieu-Daudé <f4...@amsat.org>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsement...@virtuozzo.com>
Reviewed-by: Fam Zheng <f...@redhat.com>
Signed-off-by: Kevin Wolf <kw...@redhat.com>
---
block/vdi.c | 12 +++++++++---
1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/block/vdi.c b/block/vdi.c
index fc1c614cb1..32b1763cde 100644
--- a/block/vdi.c
+++ b/block/vdi.c
@@ -87,12 +87,18 @@
#define DEFAULT_CLUSTER_SIZE (1 * MiB)
#if defined(CONFIG_VDI_DEBUG)
-#define logout(fmt, ...) \
- fprintf(stderr, "vdi\t%-24s" fmt, __func__, ##__VA_ARGS__)
+#define VDI_DEBUG 1
#else
-#define logout(fmt, ...) ((void)0)
+#define VDI_DEBUG 0
#endif
+#define logout(fmt, ...) \
+ do { \
+ if (VDI_DEBUG) { \
+ fprintf(stderr, "vdi\t%-24s" fmt, __func__, ##__VA_ARGS__); \
+ } \
+ } while (0)
+
/* Image signature. */
#define VDI_SIGNATURE 0xbeda107f
--
2.13.6
