[PATCH] KVM: selftests: Add printf attribute to _no_printf()

[Reinette Chatre]

From: Isaku Yamahata <isaku.yamahata@xxxxxxxxx>

Annotate the KVM selftests' _no_printf() with the printf format attribute
so that the compiler can help check parameters provided to pr_debug() and
pr_info() irrespective of DEBUG and QUIET being defined.

[reinette: move attribute right after storage class, rework changelog]

Signed-off-by: Isaku Yamahata <isaku.yamahata@xxxxxxxxx>
Signed-off-by: Reinette Chatre <reinette.chatre@xxxxxxxxx>
---
 tools/testing/selftests/kvm/include/test_util.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/testing/selftests/kvm/include/test_util.h b/tools/testing/selftests/kvm/include/test_util.h
index 3e473058849f..77d13d7920cb 100644
--- a/tools/testing/selftests/kvm/include/test_util.h
+++ b/tools/testing/selftests/kvm/include/test_util.h
@@ -22,7 +22,7 @@
 
 #define msecs_to_usecs(msec)    ((msec) * 1000ULL)
 
-static inline int _no_printf(const char *format, ...) { return 0; }
+static inline __printf(1, 2) int _no_printf(const char *format, ...) { return 0; }
 
 #ifdef DEBUG
 #define pr_debug(...) printf(__VA_ARGS__)
-- 
2.47.1