linux-kernel - Re: [GIT PULL] ftrace: Updates for 6.15

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Message-ID: <20250401101021.2aa9ed2c@gandalf.local.home>
Date: Tue, 1 Apr 2025 10:10:21 -0400
From: Steven Rostedt <rostedt@...dmis.org>
To: Leon Romanovsky <leon@...nel.org>
Cc: Christian Loehle <Christian.Loehle@....com>, "pr-tracker-bot@...nel.org"
 <pr-tracker-bot@...nel.org>, Linus Torvalds
 <torvalds@...ux-foundation.org>, Hongyan Xia <Hongyan.Xia2@....com>, LKML
 <linux-kernel@...r.kernel.org>, Masami Hiramatsu <mhiramat@...nel.org>,
 Mark Rutland <Mark.Rutland@....com>, Mathieu Desnoyers
 <mathieu.desnoyers@...icios.com>, Andrew Morton
 <akpm@...ux-foundation.org>, Haiyue Wang <haiyuewa@....com>, Jiapeng Chong
 <jiapeng.chong@...ux.alibaba.com>, Sasha Levin <sashal@...nel.org>, Sven
 Schnelle <svens@...ux.ibm.com>, Tengda Wu <wutengda@...weicloud.com>
Subject: Re: [GIT PULL] ftrace: Updates for 6.15

On Tue, 1 Apr 2025 14:31:59 +0300
Leon Romanovsky <leon@...nel.org> wrote:

> We see same issue in our CI systems.
> 
> 13:29:09  + make -s -j64 ARCH=x86
> 13:32:31  ld: kernel/trace/trace_output.o: in function `print_function_args':
> 13:32:31  /home/jenkins/agent/workspace/kernel_build/linux/kernel/trace/trace_output.c:713:(.text+0x20f1): undefined reference to `btf_find_func_proto'
> 13:32:31  ld: /home/jenkins/agent/workspace/kernel_build/linux/kernel/trace/trace_output.c:717:(.text+0x210d): undefined reference to `btf_get_func_param'
> 13:32:31  make[2]: *** [scripts/Makefile.vmlinux:77: vmlinux] Error 1
> 13:32:31  make[1]: *** [/home/jenkins/agent/workspace/kernel_build/linux/Makefile:1234: vmlinux] Error 2
> 13:32:31  make: *** [Makefile:251: __sub-make] Error 2

Looks like a dependency is missing and/or an #ifdef block needs to be added.

Thanks for the report, I'll take a look into it.

-- Steve