drivers/gpu/drm/omapdrm/dss/dsi.c:1126:1: warning: the frame size of 1060 bytes is larger than 1024 bytes

From: kernel test robot
Date: Thu Sep 15 2022 - 14:18:15 EST


Hi Arnd,

First bad commit (maybe != root cause):

tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 3245cb65fd91cd514801bf91f5a3066d562f0ac4
commit: 3d427228f7370894680580fcd0381c0349624fa1 ARM: ixp4xx: enable multiplatform support
date: 5 months ago
config: arm-randconfig-r035-20220915 (https://download.01.org/0day-ci/archive/20220916/202209160259.7f3Z5krO-lkp@xxxxxxxxx/config)
compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0
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=3d427228f7370894680580fcd0381c0349624fa1
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 3d427228f7370894680580fcd0381c0349624fa1
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/gpu/drm/omapdrm/

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

All warnings (new ones prefixed by >>):

drivers/gpu/drm/omapdrm/dss/dsi.c: In function 'dsi_dump_dsi_irqs':
>> drivers/gpu/drm/omapdrm/dss/dsi.c:1126:1: warning: the frame size of 1060 bytes is larger than 1024 bytes [-Wframe-larger-than=]
1126 | }
| ^
In file included from include/linux/string.h:253,
from include/linux/bitmap.h:11,
from include/linux/cpumask.h:12,
from include/linux/smp.h:13,
from include/linux/lockdep.h:14,
from include/linux/rcupdate.h:29,
from include/linux/rbtree.h:24,
from include/linux/regmap.h:14,
from drivers/gpu/drm/omapdrm/dss/dsi.c:11:
In function 'fortify_memcpy_chk',
inlined from 'omap_dsi_irq_handler' at drivers/gpu/drm/omapdrm/dss/dsi.c:460:2:
include/linux/fortify-string.h:336:25: warning: call to '__read_overflow2_field' declared with attribute warning: detected read beyond size of field (2nd parameter); maybe use struct_group()? [-Wattribute-warning]
336 | __read_overflow2_field(q_size_field, size);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +1126 drivers/gpu/drm/omapdrm/dss/dsi.c

a72b64b99918ee drivers/video/omap2/dss/dsi.c Archit Taneja 2011-05-12 1124
f33656e1fe5aba drivers/gpu/drm/omapdrm/dss/dsi.c Laurent Pinchart 2018-02-13 1125 return 0;
5a8b572d832772 drivers/video/omap2/dss/dsi.c Archit Taneja 2011-05-12 @1126 }
5a8b572d832772 drivers/video/omap2/dss/dsi.c Archit Taneja 2011-05-12 1127 #endif
5a8b572d832772 drivers/video/omap2/dss/dsi.c Archit Taneja 2011-05-12 1128

:::::: The code at line 1126 was first introduced by commit
:::::: 5a8b572d832772722c3b3b7578e7fb968560fcf3 OMAP4: DSS2: DSI: Changes for DSI2 on OMAP4

:::::: TO: Archit Taneja <archit@xxxxxx>
:::::: CC: Tomi Valkeinen <tomi.valkeinen@xxxxxx>

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