drivers/input/misc/uinput.o: warning: objtool: uinput_str_to_user+0x1a8: unknown CFA base reg -1

drivers/input/misc/uinput.o: warning: objtool: uinput_str_to_user+0x1a8: unknown CFA base reg -1

[kernel test robot]

:::::: 
:::::: Manual check reason: "only suspicious fbc files changed"
:::::: 

BCC: lkp@intel.com
CC: llvm@lists.linux.dev
CC: oe-kbuild-all@lists.linux.dev
CC: linux-kernel@vger.kernel.org
TO: Josh Poimboeuf <jpoimboe@kernel.org>
CC: Peter Zijlstra <peterz@infradead.org>

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   2c89c1b655c0b06823f4ee8b055140d8628fc4da
commit: 0a7fb6f07e3ad497d31ae9a2082d2cacab43d54a objtool: Increase per-function WARN_FUNC() rate limit
date:   7 weeks ago
:::::: branch date: 4 hours ago
:::::: commit date: 7 weeks ago
config: x86_64-buildonly-randconfig-004-20250509 (https://download.01.org/0day-ci/archive/20250509/202505090349.BDLOO2Am-lkp@intel.com/config)
compiler: clang version 20.1.2 (https://github.com/llvm/llvm-project 58df0ef89dd64126512e4ee27b4ac3fd8ddf6247)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250509/202505090349.BDLOO2Am-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/r/202505090349.BDLOO2Am-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/input/misc/uinput.o: warning: objtool: uinput_str_to_user+0x1b0: undefined stack state
>> drivers/input/misc/uinput.o: warning: objtool: uinput_str_to_user+0x1a8: unknown CFA base reg -1

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