linux-kernel - [tip:x86/core 6/10] vmlinux.o: warning: objtool: .text+0xab0: unreachable instruction

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Message-ID: <202211040002.imUUE0ee-lkp@intel.com>
Date:   Fri, 4 Nov 2022 00:21:29 +0800
From:   kernel test robot <lkp@...el.com>
To:     Peter Zijlstra <peterz@...radead.org>
Cc:     oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
        x86@...nel.org
Subject: [tip:x86/core 6/10] vmlinux.o: warning: objtool: .text+0xab0:
 unreachable instruction

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/core
head:   0c3e806ec0f9771fa1f34c60499097d9260a8bb7
commit: b341b20d648bb7e9a3307c33163e7399f0913e66 [6/10] x86: Add prefix symbols for function padding
config: x86_64-defconfig
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=b341b20d648bb7e9a3307c33163e7399f0913e66
        git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
        git fetch --no-tags tip x86/core
        git checkout b341b20d648bb7e9a3307c33163e7399f0913e66
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> vmlinux.o: warning: objtool: .text+0xab0: unreachable instruction


objdump-func vmlinux.o .text:

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

View attachment "config" of type "text/plain" (138219 bytes)