linux-kernel - fs/fat/dir.o: warning: objtool: fat_ioctl_filldir+0x7dd: stack state mismatch: cfa1=4+168 cfa2=4+160

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Message-ID: <202507030459.nFRTDqOT-lkp@intel.com>
Date: Thu, 3 Jul 2025 04:53:15 +0200
From: kernel test robot <lkp@...el.com>
To: Mel Gorman <mgorman@...e.de>
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	linux-kernel@...r.kernel.org, Kees Cook <kees@...nel.org>
Subject: fs/fat/dir.o: warning: objtool: fat_ioctl_filldir+0x7dd: stack state
 mismatch: cfa1=4+168 cfa2=4+160

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   b4911fb0b060899e4eebca0151eb56deb86921ec
commit: 496d2d23886436f7c651bf4c14950eb002815c61 mm: security: Check early if HARDENED_USERCOPY is enabled
date:   4 months ago
config: x86_64-buildonly-randconfig-2004-20250703 (https://download.01.org/0day-ci/archive/20250703/202507030459.nFRTDqOT-lkp@intel.com/config)
compiler: clang version 20.1.7 (https://github.com/llvm/llvm-project 6146a88f60492b520a36f8f8f3231e15f3cc6082)
rustc: rustc 1.78.0 (9b00956e5 2024-04-29)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250703/202507030459.nFRTDqOT-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/202507030459.nFRTDqOT-lkp@intel.com/

All warnings (new ones prefixed by >>):

>> fs/fat/dir.o: warning: objtool: fat_ioctl_filldir+0x7dd: stack state mismatch: cfa1=4+168 cfa2=4+160

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