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-rw-r--r--kernel/printk.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/kernel/printk.c b/kernel/printk.c
index c3ab51dc9faf..fbd94bdaa74f 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -593,6 +593,8 @@ static int have_callable_console(void)
*
* See also:
* printf(3)
+ *
+ * See the vsnprintf() documentation for format string extensions over C99.
*/
asmlinkage int printk(const char *fmt, ...)