linux-kernel - Re: linux-next: runtime warning after merge of the cel-fixes tree

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Message-ID: <20220407111318.649f908d@gandalf.local.home>
Date:   Thu, 7 Apr 2022 11:13:18 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Chuck Lever III <chuck.lever@...cle.com>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: runtime warning after merge of the cel-fixes tree

On Thu, 7 Apr 2022 10:54:46 -0400
Steven Rostedt <rostedt@...dmis.org> wrote:

> Hmm, I know we added code to handle "__get_sockaddr()" but I guess this
> should also be fine for "__get_dynamic_array()" as well.

Does the below patch fix it?

(not even compiled tested)

-- Steve

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index e11e167b7809..043b80f3e19a 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -392,8 +392,9 @@ static void test_event_printk(struct trace_event_call *call)
 			if (!(dereference_flags & (1ULL << arg)))
 				goto next_arg;
 
-			/* Check for __get_sockaddr */;
-			if (str_has_prefix(fmt + i, "__get_sockaddr(")) {
+			/* Check for __get_sockaddr or __get_dynamic_array */;
+			if (str_has_prefix(fmt + i, "__get_sockaddr(") ||
+			    str_has_prefix(fmt + i, "__get_dynamic_array(")) {
 				dereference_flags &= ~(1ULL << arg);
 				goto next_arg;
 			}