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Date: Thu, 10 Oct 2024 09:27:55 -0400
From: Steven Rostedt <rostedt@goodmis.org>
To: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Masami Hiramatsu <mhiramat@kernel.org>, Zheng Yejian
 <zhengyejian@huaweicloud.com>, Donglin Peng <dolinux.peng@gmail.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 13:46:49 +1100
Stephen Rothwell <sfr@canb.auug.org.au> wrote:

> Hi all,
> 
> After merging the ftrace tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
> 
> kernel/trace/trace_functions_graph.c: In function '__trace_graph_retaddr_entry':
> kernel/trace/trace_functions_graph.c:151:14: error: implicit declaration of function 'call_filter_check_discard' [-Wimplicit-function-declaration]
>   151 |         if (!call_filter_check_discard(call, entry, buffer, event))
>       |              ^~~~~~~~~~~~~~~~~~~~~~~~~
> 
> Caused by commit
> 
>   21e92806d39c ("function_graph: Support recording and printing the function return address")
> 
> interacting with commit
> 
>   49e4154f4b16 ("tracing: Remove TRACE_EVENT_FL_FILTERED logic")
> 
> I have used the ftrace tree from next-20241009 for today.
> 

Hmm, strange. This went through my tests that also does an allmodconfig build.

I'll go investigate. Thanks for the report.

-- Steve