linux-kernel - drivers/gpu/drm/vmwgfx/vmwgfx.o: warning: objtool: vmw_port_hb_in+0x1aa: return with modified stack frame

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Date:   Tue, 25 Oct 2022 12:39:12 +0800
From:   kernel test robot <lkp@...el.com>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Nicolas Schier <nicolas@...sle.eu>,
        Sami Tolvanen <samitolvanen@...gle.com>
Subject: drivers/gpu/drm/vmwgfx/vmwgfx.o: warning: objtool:
 vmw_port_hb_in+0x1aa: return with modified stack frame

Hi Masahiro,

FYI, the error/warning still remains.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   a970174d7a1010cb29a5b0c9fa0626abdefcfcbe
commit: c25e1c55822f9b3b53ccbf88b85644317a525752 kbuild: do not create *.prelink.o for Clang LTO or IBT
date:   5 months ago
config: x86_64-randconfig-m001-20221024
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c25e1c55822f9b3b53ccbf88b85644317a525752
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout c25e1c55822f9b3b53ccbf88b85644317a525752
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/gpu/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/vmwgfx/vmwgfx.o: warning: objtool: vmw_port_hb_in+0x1aa: return with modified stack frame
>> drivers/gpu/drm/vmwgfx/vmwgfx.o: warning: objtool: vmw_port_hb_out+0x1a2: return with modified stack frame


objdump-func vmlinux.o vmw_port_hb_in:

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

View attachment "config" of type "text/plain" (134922 bytes)