remove unnecessary ftrace WARN_ONCE's.

[Dave Jones]

These warnings are trivially triggerable by any user, and serve no useful purpose afaics
Just -EINVAL and be done.

Signed-off-by: Dave Jones <davej@xxxxxxxxxx>

diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index ed7b5d1..a745317 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -4136,13 +4136,11 @@ 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;
--
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