arch/x86/kernel/head_64.o: warning: objtool: xen_hypercall_hvm+0x30: sibling call from callable instruction with modified stack frame

[kernel test robot]

Hi Juergen,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   ab18b8fff124c9b76ea12692571ca822dcd92854
commit: b4845bb6383821a9516ce30af3a27dc873e37fd4 x86/xen: add central hypercall functions
date:   6 weeks ago
config: x86_64-randconfig-161-20241019 (https://download.01.org/0day-ci/archive/20250125/202501250304.8hkFCG3K-lkp@xxxxxxxxx/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250125/202501250304.8hkFCG3K-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202501250304.8hkFCG3K-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> arch/x86/kernel/head_64.o: warning: objtool: xen_hypercall_hvm+0x30: sibling call from callable instruction with modified stack frame

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