drivers/media/dvb-frontends/nxt200x.c:1087:12: warning: stack frame size (15160) exceeds limit (8192) in 'nxt200x_init'
From: kernel test robot
Date: Sun Aug 14 2022 - 16:48:22 EST
Hi Kees,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 5d6a0f4da9275f6c212de33777778673ba91241a
commit: a52f8a59aef46b59753e583bf4b28fccb069ce64 fortify: Explicitly disable Clang support
date: 11 months ago
config: x86_64-randconfig-a013-20220815 (https://download.01.org/0day-ci/archive/20220815/202208150405.dJa74zEz-lkp@xxxxxxxxx/config)
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 3329cec2f79185bafd678f310fafadba2a8c76d2)
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=a52f8a59aef46b59753e583bf4b28fccb069ce64
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout a52f8a59aef46b59753e583bf4b28fccb069ce64
# 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=x86_64 SHELL=/bin/bash drivers/iommu/ drivers/media/dvb-frontends/ drivers/usb/host/
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/media/dvb-frontends/nxt200x.c:1087:12: warning: stack frame size (15160) exceeds limit (8192) in 'nxt200x_init' [-Wframe-larger-than]
static int nxt200x_init(struct dvb_frontend* fe)
^
>> drivers/media/dvb-frontends/nxt200x.c:519:12: warning: stack frame size (9624) exceeds limit (8192) in 'nxt200x_setup_frontend_parameters' [-Wframe-larger-than]
static int nxt200x_setup_frontend_parameters(struct dvb_frontend *fe)
^
2 warnings generated.
--
>> drivers/media/dvb-frontends/stv0367.c:995:12: warning: stack frame size (9464) exceeds limit (8192) in 'stv0367ter_algo' [-Wframe-larger-than]
static int stv0367ter_algo(struct dvb_frontend *fe)
^
>> drivers/media/dvb-frontends/stv0367.c:2540:12: warning: stack frame size (9368) exceeds limit (8192) in 'stv0367cab_set_frontend' [-Wframe-larger-than]
static int stv0367cab_set_frontend(struct dvb_frontend *fe)
^
2 warnings generated.
--
drivers/usb/host/max3421-hcd.c:1968:34: warning: unused variable 'max3421_of_match_table' [-Wunused-const-variable]
static const struct of_device_id max3421_of_match_table[] = {
^
>> drivers/usb/host/max3421-hcd.c:1378:1: warning: stack frame size (11288) exceeds limit (8192) in 'max3421_spi_thread' [-Wframe-larger-than]
max3421_spi_thread(void *dev_id)
^
2 warnings generated.
vim +/nxt200x_init +1087 drivers/media/dvb-frontends/nxt200x.c
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1086
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 @1087 static int nxt200x_init(struct dvb_frontend* fe)
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1088 {
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1089 struct nxt200x_state* state = fe->demodulator_priv;
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1090 int ret = 0;
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1091
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1092 if (!state->initialised) {
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1093 switch (state->demod_chip) {
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1094 case NXT2002:
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1095 ret = nxt2002_init(fe);
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1096 break;
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1097 case NXT2004:
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1098 ret = nxt2004_init(fe);
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1099 break;
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1100 default:
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1101 return -EINVAL;
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1102 }
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1103 state->initialised = 1;
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1104 }
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1105 return ret;
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1106 }
04a45929e7f00e drivers/media/dvb/frontends/nxt200x.c Kirk Lapray 2005-11-08 1107
:::::: The code at line 1087 was first introduced by commit
:::::: 04a45929e7f00ed4fc7b1d375397f808c8a5d0eb [PATCH] dvb: add nxt200x frontend module
:::::: TO: Kirk Lapray <kirk.lapray@xxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxx>
--
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