linux-kernel - [tip:x86/entry 14/14] kernel/softirq.o: warning: objtool: do_softirq()+0xdb: return with modified stack frame

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Date:   Sat, 13 Feb 2021 16:18:56 +0800
From:   kernel test robot <lkp@...el.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        x86@...nel.org, Kees Cook <keescook@...omium.org>
Subject: [tip:x86/entry 14/14] kernel/softirq.o: warning: objtool:
 do_softirq()+0xdb: return with modified stack frame

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git x86/entry
head:   72f40a2823d6e16229ab58b898c6f22044e5222f
commit: 72f40a2823d6e16229ab58b898c6f22044e5222f [14/14] x86/softirq/64: Inline do_softirq_own_stack()
config: x86_64-randconfig-a012-20201005 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=72f40a2823d6e16229ab58b898c6f22044e5222f
        git remote add tip https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git
        git fetch --no-tags tip x86/entry
        git checkout 72f40a2823d6e16229ab58b898c6f22044e5222f
        # save the attached .config to linux build tree
        make W=1 ARCH=x86_64 

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

All warnings (new ones prefixed by >>):

>> kernel/softirq.o: warning: objtool: do_softirq()+0xdb: return with modified stack frame

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

Download attachment ".config.gz" of type "application/gzip" (30939 bytes)