linux-kernel - vmlinux.o: warning: objtool: __fentry_

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Message-ID: <202501172136.eM0YvWhn-lkp@intel.com>
Date: Fri, 17 Jan 2025 21:33:46 +0800
From: kernel test robot <lkp@...el.com>
To: Juergen Gross <jgross@...e.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Jan Beulich <jbeulich@...e.com>
Subject: vmlinux.o: warning: objtool: __fentry__+0x4: RET before UNTRAIN

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   9bffa1ad25b8b3b95d8f463e5c24dabe3c87d54d
commit: a2796dff62d6c6bfc5fbebdf2bee0d5ac0438906 x86/xen: don't do PV iret hypercall through hypercall page
date:   5 weeks ago
config: x86_64-buildonly-randconfig-001-20250117 (https://download.01.org/0day-ci/archive/20250117/202501172136.eM0YvWhn-lkp@intel.com/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/20250117/202501172136.eM0YvWhn-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202501172136.eM0YvWhn-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> vmlinux.o: warning: objtool: __fentry__+0x4: RET before UNTRAIN

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki