It simplifies the code and makes it more clear.

Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
---
 drivers/base/core.c | 32 ++++++--------------------------
 1 file changed, 6 insertions(+), 26 deletions(-)

diff --git a/drivers/base/core.c b/drivers/base/core.c
index f69dc9c8595455d85bf7eda5d4abce1ed7cb5166..513e5ef8a6dabaec0aee0778c1338a9d72e66892 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -4943,35 +4943,15 @@ static void __dev_printk(const char *level, const struct device *dev,
 void _dev_printk(const char *level, const struct device *dev,
 		 const char *fmt, ...)
 {
-	struct va_format vaf;
-	va_list args;
-
-	va_start(args, fmt);
-
-	vaf.fmt = fmt;
-	vaf.va = &args;
-
-	__dev_printk(level, dev, &vaf);
-
-	va_end(args);
+	va_format_call(fmt, __dev_printk, level, dev, va_format_arg);
 }
 EXPORT_SYMBOL(_dev_printk);
 
-#define define_dev_printk_level(func, kern_level)		\
-void func(const struct device *dev, const char *fmt, ...)	\
-{								\
-	struct va_format vaf;					\
-	va_list args;						\
-								\
-	va_start(args, fmt);					\
-								\
-	vaf.fmt = fmt;						\
-	vaf.va = &args;						\
-								\
-	__dev_printk(kern_level, dev, &vaf);			\
-								\
-	va_end(args);						\
-}								\
+#define define_dev_printk_level(func, kern_level)				\
+void func(const struct device *dev, const char *fmt, ...)			\
+{										\
+	va_format_call(fmt, __dev_printk, kern_level, dev, va_format_arg);	\
+}										\
 EXPORT_SYMBOL(func);
 
 define_dev_printk_level(_dev_emerg, KERN_EMERG);

-- 
2.43.0