Messages in this thread | | | Date | Thu, 6 May 2021 11:46:32 +0800 | From | kernel test robot <> | Subject | drivers/iio/accel/sca3000.c:1244:12: warning: stack frame size of 8320 bytes in function 'sca3000_write_event_config' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 8404c9fbc84b741f66cff7d4934a25dd2c344452 commit: 11ba28229f8258164731e42f4c3e93762cb6578e Merge remote-tracking branch 'spi/for-5.9' into spi-next date: 9 months ago config: riscv-randconfig-r033-20210506 (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 riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=11ba28229f8258164731e42f4c3e93762cb6578e git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 11ba28229f8258164731e42f4c3e93762cb6578e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
drivers/iio/accel/sca3000.c:1453:12: warning: stack frame size of 8576 bytes in function 'sca3000_probe' [-Wframe-larger-than=] static int sca3000_probe(struct spi_device *spi) ^ >> drivers/iio/accel/sca3000.c:1244:12: warning: stack frame size of 8320 bytes in function 'sca3000_write_event_config' [-Wframe-larger-than=] static int sca3000_write_event_config(struct iio_dev *indio_dev, ^ 2 warnings generated.
vim +/sca3000_write_event_config +1244 drivers/iio/accel/sca3000.c
574fb258d63658 drivers/staging/iio/accel/sca3000_core.c Jonathan Cameron 2009-08-18 1228 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1229 /** 2ccf61442ff142 drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1230 * sca3000_write_event_config() - simple on off control for motion detector 2ccf61442ff142 drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1231 * @indio_dev: IIO device instance specific structure. Data specific to this 2ccf61442ff142 drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1232 * particular driver may be accessed via iio_priv(indio_dev). 2ccf61442ff142 drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1233 * @chan: Description of the channel whose event we are configuring. 2ccf61442ff142 drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1234 * @type: The type of event. 2ccf61442ff142 drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1235 * @dir: The direction of the event. 2ccf61442ff142 drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1236 * @state: Desired state of event being configured. 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1237 * 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1238 * This is a per axis control, but enabling any will result in the 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1239 * motion detector unit being enabled. 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1240 * N.B. enabling motion detector stops normal data acquisition. 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1241 * There is a complexity in knowing which mode to return to when 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1242 * this mode is disabled. Currently normal mode is assumed. 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1243 **/ 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 @1244 static int sca3000_write_event_config(struct iio_dev *indio_dev, 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1245 const struct iio_chan_spec *chan, 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1246 enum iio_event_type type, 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1247 enum iio_event_direction dir, 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1248 int state) 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1249 { 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1250 struct sca3000_state *st = iio_priv(indio_dev); 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1251 int ret; fc5d0e42545a74 drivers/staging/iio/accel/sca3000_core.c Jonathan Cameron 2010-10-08 1252 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1253 mutex_lock(&st->lock); 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1254 switch (chan->channel2) { 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1255 case IIO_MOD_X_AND_Y_AND_Z: 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1256 ret = sca3000_freefall_set_state(indio_dev, state); 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1257 break; 574fb258d63658 drivers/staging/iio/accel/sca3000_core.c Jonathan Cameron 2009-08-18 1258 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1259 case IIO_MOD_X: 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1260 case IIO_MOD_Y: 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1261 case IIO_MOD_Z: 74bdc940757608 drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1262 ret = sca3000_motion_detect_set_state(indio_dev, 74bdc940757608 drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1263 chan->address, 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1264 state); 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1265 break; 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1266 default: 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1267 ret = -EINVAL; 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1268 break; 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1269 } 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1270 mutex_unlock(&st->lock); 574fb258d63658 drivers/staging/iio/accel/sca3000_core.c Jonathan Cameron 2009-08-18 1271 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1272 return ret; 45ae5561acf52e drivers/staging/iio/accel/sca3000.c Jonathan Cameron 2016-10-08 1273 } 574fb258d63658 drivers/staging/iio/accel/sca3000_core.c Jonathan Cameron 2009-08-18 1274
:::::: The code at line 1244 was first introduced by commit :::::: 45ae5561acf52e82c838ba997dca5afc53ff1b61 staging:iio:accel:sca3000 use a 'fake' channel to handle freefall event registration.
:::::: TO: Jonathan Cameron <jic23@kernel.org> :::::: CC: Jonathan Cameron <jic23@kernel.org>
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