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Date: Thu, 10 Oct 2024 11:04:34 -0400
From: Steven Rostedt <rostedt@goodmis.org>
To: Donglin Peng <dolinux.peng@gmail.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>, Masami Hiramatsu
 <mhiramat@kernel.org>, Zheng Yejian <zhengyejian@huaweicloud.com>, Donglin
 Peng <pengdonglin@xiaomi.com>, Linux Kernel Mailing List
 <linux-kernel@vger.kernel.org>, Linux Next Mailing List
 <linux-next@vger.kernel.org>
Subject: Re: linux-next: build failure after merge of the ftrace tree
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On Thu, 10 Oct 2024 22:08:04 +0800
Donglin Peng <dolinux.peng@gmail.com> wrote:

> > Hmm, strange. This went through my tests that also does an allmodconfig build.
> >
> > I'll go investigate. Thanks for the report.  
> 
> I suspect that the configuration CONFIG_FUNCTION_GRAPH_RETADDR may be
>  disabled during testing. If this configuration is indeed disabled,
> the function
> __trace_graph_retaddr_entry will not invoke call_filter_check_discard.

allmodconfig should enable it. Unless it's a tristate.

I'll look at my tests to see if something else caused it to be disabled.

-- Steve