linux-kernel - drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn314/display_rq_dlg_calc_314.c:1686:6: warning: stack frame size (1500) exceeds limit (1024) in 'dml314_rq_dlg_get_dlg

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Date:   Tue, 11 Oct 2022 00:33:27 +0800
From:   kernel test robot <lkp@...el.com>
To:     Rodrigo Siqueira <Rodrigo.Siqueira@....com>
Cc:     llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
        linux-kernel@...r.kernel.org,
        Alex Deucher <alexander.deucher@....com>
Subject: drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn314/display_rq_dlg_calc_314.c:1686:6:
 warning: stack frame size (1500) exceeds limit (1024) in
 'dml314_rq_dlg_get_dlg_reg'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   493ffd6605b2d3d4dc7008ab927dba319f36671f
commit: af2f2a256e048f1b83605eaae49948e4a6811ac1 drm/amd/display: Enable dlg and vba compilation for dcn314
date:   4 weeks ago
config: i386-buildonly-randconfig-r002-20221010
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=af2f2a256e048f1b83605eaae49948e4a6811ac1
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout af2f2a256e048f1b83605eaae49948e4a6811ac1
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

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/amd/amdgpu/../display/dc/dml/dcn314/display_rq_dlg_calc_314.c:1005:15: warning: variable 'dispclk_delay_subtotal' set but not used [-Wunused-but-set-variable]
           unsigned int dispclk_delay_subtotal;
                        ^
   drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn314/display_rq_dlg_calc_314.c:1004:15: warning: variable 'dppclk_delay_subtotal' set but not used [-Wunused-but-set-variable]
           unsigned int dppclk_delay_subtotal;
                        ^
>> drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn314/display_rq_dlg_calc_314.c:1686:6: warning: stack frame size (1500) exceeds limit (1024) in 'dml314_rq_dlg_get_dlg_reg' [-Wframe-larger-than]
   void dml314_rq_dlg_get_dlg_reg(
        ^
   3 warnings generated.


vim +/dml314_rq_dlg_get_dlg_reg +1686 drivers/gpu/drm/amd/amdgpu/../display/dc/dml/dcn314/display_rq_dlg_calc_314.c

41529d79ce1655 Roman Li 2022-06-28  1685  
41529d79ce1655 Roman Li 2022-06-28 @1686  void dml314_rq_dlg_get_dlg_reg(

:::::: The code at line 1686 was first introduced by commit
:::::: 41529d79ce1655bd7463c01d9813d0abb6fb08a4 drm/amd/display: Add DCN314 DML calculation support

:::::: TO: Roman Li <roman.li@....com>
:::::: CC: Alex Deucher <alexander.deucher@....com>

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

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