Commit bf3071f5 authored Jul 25, 2012 by Dave Jones Committed by Steven Rostedt Nov 19, 2012

tracing: Remove unnecessary WARN_ONCE's from tracing_buffers_splice_read

WARN shouldn't be used as a means of communicating failure to a userspace programmer.

Link: http://lkml.kernel.org/r/20120725153908.GA25203@redhat.com

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

kernel/trace/trace.c

+0 −2

Original line number	Diff line number	Diff line
		@@ -4275,13 +4275,11 @@ tracing_buffers_splice_read(struct file file, loff_t ppos,
		return -ENOMEM;

		if (*ppos & (PAGE_SIZE - 1)) {
		WARN_ONCE(1, "Ftrace: previous read must page-align\n");
		ret = -EINVAL;
		goto out;
		}

		if (len & (PAGE_SIZE - 1)) {
		WARN_ONCE(1, "Ftrace: splice_read should page-align\n");
		if (len < PAGE_SIZE) {
		ret = -EINVAL;
		goto out;