drivers/media/dvb-frontends/stv090x.c:4685:12: warning: stack frame size of 8224 bytes in function 'stv090x_init'

From: kernel test robot
Date: Thu May 06 2021 - 06:43:58 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 8404c9fbc84b741f66cff7d4934a25dd2c344452
commit: 02c587733c8161355a43e6e110c2e29bd0acff72 kasan: remove redundant config option
date: 3 weeks ago
config: arm64-randconfig-r034-20210506 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8f5a2a5836cc8e4c1def2bdeb022e7b496623439)
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
# install arm64 cross compiling tool for clang build
# apt-get install binutils-aarch64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=02c587733c8161355a43e6e110c2e29bd0acff72
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 02c587733c8161355a43e6e110c2e29bd0acff72
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=arm64

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

All warnings (new ones prefixed by >>):

>> drivers/media/dvb-frontends/stv090x.c:4685:12: warning: stack frame size of 8224 bytes in function 'stv090x_init' [-Wframe-larger-than=]
static int stv090x_init(struct dvb_frontend *fe)
^
drivers/media/dvb-frontends/stv090x.c:1976:12: warning: stack frame size of 14240 bytes in function 'stv090x_blind_search' [-Wframe-larger-than=]
static int stv090x_blind_search(struct stv090x_state *state)
^
2 warnings generated.

vim +/stv090x_init +4685 drivers/media/dvb-frontends/stv090x.c

6b9e50c463efc5c drivers/media/dvb-frontends/stv090x.c Andreas Regel 2012-03-11 4684
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 @4685 static int stv090x_init(struct dvb_frontend *fe)
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4686 {
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4687 struct stv090x_state *state = fe->demodulator_priv;
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4688 const struct stv090x_config *config = state->config;
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4689 u32 reg;
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4690
9045e729447192a drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-01-05 4691 if (state->internal->mclk == 0) {
5817ea0c83665db drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-02-13 4692 /* call tuner init to configure the tuner's clock output
5817ea0c83665db drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-02-13 4693 divider directly before setting up the master clock of
5817ea0c83665db drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-02-13 4694 the stv090x. */
5817ea0c83665db drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-02-13 4695 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
5817ea0c83665db drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-02-13 4696 goto err;
5817ea0c83665db drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-02-13 4697
5817ea0c83665db drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-02-13 4698 if (config->tuner_init) {
5817ea0c83665db drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-02-13 4699 if (config->tuner_init(fe) < 0)
5817ea0c83665db drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-02-13 4700 goto err_gateoff;
5817ea0c83665db drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-02-13 4701 }
5817ea0c83665db drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-02-13 4702
5817ea0c83665db drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-02-13 4703 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
5817ea0c83665db drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-02-13 4704 goto err;
5817ea0c83665db drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-02-13 4705
9045e729447192a drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-01-05 4706 stv090x_set_mclk(state, 135000000, config->xtal); /* 135 Mhz */
9045e729447192a drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-01-05 4707 msleep(5);
9045e729447192a drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-01-05 4708 if (stv090x_write_reg(state, STV090x_SYNTCTRL,
9045e729447192a drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-01-05 4709 0x20 | config->clk_mode) < 0)
9045e729447192a drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-01-05 4710 goto err;
9045e729447192a drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-01-05 4711 stv090x_get_mclk(state);
9045e729447192a drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-01-05 4712 }
9045e729447192a drivers/media/dvb/frontends/stv090x.c Andreas Regel 2010-01-05 4713
cbc320d2782cbb0 drivers/media/dvb/frontends/stv090x.c Andreas Regel 2009-04-23 4714 if (stv090x_wakeup(fe) < 0) {
cbc320d2782cbb0 drivers/media/dvb/frontends/stv090x.c Andreas Regel 2009-04-23 4715 dprintk(FE_ERROR, 1, "Error waking device");
cbc320d2782cbb0 drivers/media/dvb/frontends/stv090x.c Andreas Regel 2009-04-23 4716 goto err;
cbc320d2782cbb0 drivers/media/dvb/frontends/stv090x.c Andreas Regel 2009-04-23 4717 }
cbc320d2782cbb0 drivers/media/dvb/frontends/stv090x.c Andreas Regel 2009-04-23 4718
27d403214317d42 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-05-02 4719 if (stv090x_ldpc_mode(state, state->demod_mode) < 0)
27d403214317d42 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-05-02 4720 goto err;
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4721
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4722 reg = STV090x_READ_DEMOD(state, TNRCFG2);
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4723 STV090x_SETFIELD_Px(reg, TUN_IQSWAP_FIELD, state->inversion);
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4724 if (STV090x_WRITE_DEMOD(state, TNRCFG2, reg) < 0)
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4725 goto err;
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4726 reg = STV090x_READ_DEMOD(state, DEMOD);
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4727 STV090x_SETFIELD_Px(reg, ROLLOFF_CONTROL_FIELD, state->rolloff);
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4728 if (STV090x_WRITE_DEMOD(state, DEMOD, reg) < 0)
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4729 goto err;
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4730
19c4ee58325ac7c drivers/media/dvb/frontends/stv090x.c Manu Abraham 2010-01-22 4731 if (stv090x_i2c_gate_ctrl(state, 1) < 0)
27d403214317d42 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-05-02 4732 goto err;
27d403214317d42 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-05-02 4733
27d403214317d42 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-05-02 4734 if (config->tuner_set_mode) {
27d403214317d42 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-05-02 4735 if (config->tuner_set_mode(fe, TUNER_WAKE) < 0)
2c1f750ba3fbd4a drivers/media/dvb/frontends/stv090x.c Oliver Endriss 2010-01-10 4736 goto err_gateoff;
27d403214317d42 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-05-02 4737 }
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4738
27d403214317d42 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-05-02 4739 if (config->tuner_init) {
27d403214317d42 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-05-02 4740 if (config->tuner_init(fe) < 0)
2c1f750ba3fbd4a drivers/media/dvb/frontends/stv090x.c Oliver Endriss 2010-01-10 4741 goto err_gateoff;
27d403214317d42 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-05-02 4742 }
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4743
19c4ee58325ac7c drivers/media/dvb/frontends/stv090x.c Manu Abraham 2010-01-22 4744 if (stv090x_i2c_gate_ctrl(state, 0) < 0)
27d403214317d42 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-05-02 4745 goto err;
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4746
6b9e50c463efc5c drivers/media/dvb-frontends/stv090x.c Andreas Regel 2012-03-11 4747 if (state->device == STV0900) {
6b9e50c463efc5c drivers/media/dvb-frontends/stv090x.c Andreas Regel 2012-03-11 4748 if (stv0900_set_tspath(state) < 0)
27d403214317d42 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-05-02 4749 goto err;
6b9e50c463efc5c drivers/media/dvb-frontends/stv090x.c Andreas Regel 2012-03-11 4750 } else {
6b9e50c463efc5c drivers/media/dvb-frontends/stv090x.c Andreas Regel 2012-03-11 4751 if (stv0903_set_tspath(state) < 0)
6b9e50c463efc5c drivers/media/dvb-frontends/stv090x.c Andreas Regel 2012-03-11 4752 goto err;
6b9e50c463efc5c drivers/media/dvb-frontends/stv090x.c Andreas Regel 2012-03-11 4753 }
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4754
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4755 return 0;
2c1f750ba3fbd4a drivers/media/dvb/frontends/stv090x.c Oliver Endriss 2010-01-10 4756
2c1f750ba3fbd4a drivers/media/dvb/frontends/stv090x.c Oliver Endriss 2010-01-10 4757 err_gateoff:
19c4ee58325ac7c drivers/media/dvb/frontends/stv090x.c Manu Abraham 2010-01-22 4758 stv090x_i2c_gate_ctrl(state, 0);
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4759 err:
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4760 dprintk(FE_ERROR, 1, "I/O error");
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4761 return -1;
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4762 }
e415c689a884267 drivers/media/dvb/frontends/stv090x.c Manu Abraham 2009-04-06 4763

:::::: The code at line 4685 was first introduced by commit
:::::: e415c689a8842670e161581f060575c14957f073 V4L/DVB (11579): Initial go at TT S2-1600

:::::: TO: Manu Abraham <abraham.manu@xxxxxxxxx>
:::::: CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx

Attachment: .config.gz
Description: application/gzip

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