kfifo: add kfifo_skip() testcase

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

Signed-off-by: Andrea Righi <[email protected]>
Cc: Greg KH <[email protected]>
Acked-by: Stefani Seibold <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

diff --git a/samples/kfifo/bytestream-example.c b/samples/kfifo/bytestream-example.c
index 642eef3f633624413dccda3ab85b1eb6e2bcc578..2e3a7a8128a26667b8cb65728bf8554b18726a85 100644 (file)
--- 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++)
                ;