Re: [PATCH RFC 4/4] x86/srso: Use CALL-based return thunks to reduce overhead

[kernel test robot <lkp@intel.com>]

Hi Andrew,

[This is a private test report for your RFC patch.]
kernel test robot noticed the following build warnings:

[auto build test WARNING on 6405b72e8d17bd1875a56ae52d23ec3cd51b9d66]

url:    https://github.com/intel-lab-lkp/linux/commits/Andrew-Cooper/x86-srso-Rename-srso_alias_-to-srso_fam19_/20230821-192855
base:   6405b72e8d17bd1875a56ae52d23ec3cd51b9d66
patch link:    https://lore.kernel.org/r/20230821112723.3995187-5-andrew.cooper3%40citrix.com
patch subject: [PATCH RFC 4/4] x86/srso: Use CALL-based return thunks to reduce overhead
config: x86_64-buildonly-randconfig-005-20230822 (https://download.01.org/0day-ci/archive/20230822/202308221422.3HLEiqns-lkp@intel.com/config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce: (https://download.01.org/0day-ci/archive/20230822/202308221422.3HLEiqns-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202308221422.3HLEiqns-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> arch/x86/lib/retpoline.o: warning: objtool: srso_fam17_return_thunk(): can't find starting instruction

-- 
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