Use the compiler to verify printf formats and arguments.
Fix fallout.
Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
---
drivers/block/xen-blkback/xenbus.c | 2 +-
include/xen/hvc-console.h | 4 +++-
include/xen/xenbus.h | 2 ++
3 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/drivers/block/xen-blkback/xenbus.c
b/drivers/block/xen-blkback/xenbus.c
index 6cc0db1..3f129b4 100644
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -684,7 +684,7 @@ again:
err = xenbus_switch_state(dev, XenbusStateConnected);
if (err)
- xenbus_dev_fatal(dev, err, "switching to Connected state",
+ xenbus_dev_fatal(dev, err, "%s: switching to Connected state",
dev->nodename);
return;
diff --git a/include/xen/hvc-console.h b/include/xen/hvc-console.h
index c3adde3..901724d 100644
--- a/include/xen/hvc-console.h
+++ b/include/xen/hvc-console.h
@@ -6,11 +6,13 @@ extern struct console xenboot_console;
#ifdef CONFIG_HVC_XEN
void xen_console_resume(void);
void xen_raw_console_write(const char *str);
+__attribute__((format(printf, 1, 2)))
void xen_raw_printk(const char *fmt, ...);
#else
static inline void xen_console_resume(void) { }
static inline void xen_raw_console_write(const char *str) { }
-static inline void xen_raw_printk(const char *fmt, ...) { }
+static inline __attribute__((format(printf, 1, 2)))
+void xen_raw_printk(const char *fmt, ...) { }
#endif
#endif /* XEN_HVC_CONSOLE_H */
diff --git a/include/xen/xenbus.h b/include/xen/xenbus.h
index 5467369..aceeca7 100644
--- a/include/xen/xenbus.h
+++ b/include/xen/xenbus.h
@@ -223,7 +223,9 @@ int xenbus_free_evtchn(struct xenbus_device *dev, int port);
enum xenbus_state xenbus_read_driver_state(const char *path);
+__attribute__((format(printf, 3, 4)))
void xenbus_dev_error(struct xenbus_device *dev, int err, const char *fmt,
...);
+__attribute__((format(printf, 3, 4)))
void xenbus_dev_fatal(struct xenbus_device *dev, int err, const char *fmt,
...);
const char *xenbus_strstate(enum xenbus_state state);
--
1.7.6.rc1
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