kfifo: add kfifo_skip() testcase

Add a testcase for kfifo_skip() to the byte stream fifo example.

Signed-off-by: Andrea Righi <arighi@develer.com>
Cc: Greg KH <greg@kroah.com>
Acked-by: Stefani Seibold <stefani@seibold.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 4 insertions, 0 deletions

diff --git a/samples/kfifo/bytestream-example.c b/samples/kfifo/bytestream-example.c
index 642eef3f6336..2e3a7a8128a2 100644
--- a/samples/kfifo/bytestream-example.c
+++ b/samples/kfifo/bytestream-example.c
@@ -73,6 +73,10 @@ static int __init testfunc(void)
         ret = kfifo_in(&test, buf, ret);
         printk(KERN_INFO "ret: %d\n", ret);
 
+        /* skip first element of the fifo */
+        printk(KERN_INFO "skip 1st element\n");
+        kfifo_skip(&test);
+
         /* put values into the fifo until is full */
         for (i = 20; kfifo_put(&test, &i); i++)
                 ;