linux-kernel - [intel-tdx:guest-upstream 15/38] arch/x86/kernel/process.o: warning: objtool: .altinstr_replacement+0x5: call without frame pointer save/setup

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Date:   Wed, 24 Nov 2021 03:06:04 +0800
From:   kernel test robot <lkp@...el.com>
To:     Kuppuswamy Sathyanarayanan 
        <sathyanarayanan.kuppuswamy@...ux.intel.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Andi Kleen <ak@...ux.intel.com>,
        Tony Luck <tony.luck@...el.com>
Subject: [intel-tdx:guest-upstream 15/38] arch/x86/kernel/process.o: warning:
 objtool: .altinstr_replacement+0x5: call without frame pointer save/setup

tree:   https://github.com/intel/tdx.git guest-upstream
head:   6de233e56ad1ba06ef0bbe20a9377c47f49e6366
commit: e565a4318c87e3d1243bb31b89c53aff081472c5 [15/38] x86/tdx: Add HLT support for TDX guests
config: x86_64-randconfig-a001-20211123 (https://download.01.org/0day-ci/archive/20211124/202111240211.wdrjK2u4-lkp@intel.com/config.gz)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel/tdx/commit/e565a4318c87e3d1243bb31b89c53aff081472c5
        git remote add intel-tdx https://github.com/intel/tdx.git
        git fetch --no-tags intel-tdx guest-upstream
        git checkout e565a4318c87e3d1243bb31b89c53aff081472c5
        # save the config file to linux build tree
        mkdir build_dir
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/

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 >>):

>> arch/x86/kernel/process.o: warning: objtool: .altinstr_replacement+0x5: call without frame pointer save/setup
   arch/x86/kernel/process.o: warning: objtool: .altinstr_replacement+0x0: call without frame pointer save/setup

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