[linux-stable-rc:linux-5.15.y 6458/6574] arch/x86/events/intel/uncore_nhmex.o: warning: objtool: nhmex_rbox_msr_enable_event()+0x89: unreachable instruction

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
head:   cbfc4f42bd5fbf033342ee467c5614254167e3a8
commit: 370d33da35e31c1544eb77bcf2539f09b1064b9c [6458/6574] x86: Add straight-line-speculation mitigation
config: x86_64-randconfig-a015-20220516 (https://download.01.org/0day-ci/archive/20220517/202205170256.mknqzhrd-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.2.0-20) 11.2.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git/commit/?id=370d33da35e31c1544eb77bcf2539f09b1064b9c
        git remote add linux-stable-rc https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
        git fetch --no-tags linux-stable-rc linux-5.15.y
        git checkout 370d33da35e31c1544eb77bcf2539f09b1064b9c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash arch/x86/ drivers/ fs/ net/

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

All warnings (new ones prefixed by >>):

>> arch/x86/events/intel/uncore_nhmex.o: warning: objtool: nhmex_rbox_msr_enable_event()+0x89: unreachable instruction
--
>> drivers/regulator/max8998.o: warning: objtool: max8998_get_voltage_register()+0x58: unreachable instruction
--
>> drivers/regulator/qcom_spmi-regulator.o: warning: objtool: spmi_regulator_of_parse()+0x396: unreachable instruction
--
>> drivers/regulator/tps65910-regulator.o: warning: objtool: tps65911_get_voltage_sel()+0x83: unreachable instruction
--
>> drivers/nfc/nfcmrvl/fw_dnld.o: warning: objtool: fw_dnld_rx_work()+0xa5: unreachable instruction
--
>> net/netrom/af_netrom.o: warning: objtool: nr_getsockopt()+0xdf: unreachable instruction
--
>> net/netrom/nr_in.o: warning: objtool: nr_state3_machine()+0xa6: unreachable instruction
--
>> fs/fuse/dev.o: warning: objtool: fuse_notify()+0x50: unreachable instruction
--
>> fs/fuse/inode.o: warning: objtool: fuse_parse_param()+0x12c: unreachable instruction
--
>> net/ax25/af_ax25.o: warning: objtool: ax25_getsockopt()+0x109: unreachable instruction
--
>> net/can/raw.o: warning: objtool: raw_getsockopt()+0xc0: unreachable instruction
..

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