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>

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>
Andrea Righi · Linus Torvalds
1 parent b35de43b31
Showing 1 changed file with 4 additions and 0 deletions Side-by-side Diff
samples/kfifo/bytestream-example.c
@@ -73,6 +73,10 @@
 	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++)
 		;
...	...	@@ -73,6 +73,10 @@
73	73	ret = kfifo_in(&test, buf, ret);
74	74	printk(KERN_INFO "ret: %d\n", ret);
75	75
	76	+ /* skip first element of the fifo */
	77	+ printk(KERN_INFO "skip 1st element\n");
	78	+ kfifo_skip(&test);
	79	+
76	80	/* put values into the fifo until is full */
77	81	for (i = 20; kfifo_put(&test, &i); i++)
78	82	;