1 files changed, 2 insertions, 2 deletions

diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h
index 29f62e1733ff..ad6bdf5a5970 100644
--- a/include/linux/kfifo.h
+++ b/include/linux/kfifo.h
@@ -38,7 +38,7 @@ extern struct kfifo *kfifo_alloc(unsigned int size, gfp_t gfp_mask,
                                  spinlock_t *lock);
 extern void kfifo_free(struct kfifo *fifo);
 extern unsigned int __kfifo_put(struct kfifo *fifo,
-                                unsigned char *buffer, unsigned int len);
+                                const unsigned char *buffer, unsigned int len);
 extern unsigned int __kfifo_get(struct kfifo *fifo,
                                 unsigned char *buffer, unsigned int len);
 
@@ -77,7 +77,7 @@ static inline void kfifo_reset(struct kfifo *fifo)
  * bytes copied.
  */
 static inline unsigned int kfifo_put(struct kfifo *fifo,
-                                     unsigned char *buffer, unsigned int len)
+                                const unsigned char *buffer, unsigned int len)
 {
         unsigned long flags;
         unsigned int ret;