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Subject[l1k:smsc95xx_5.17 191/199] drivers/char/tpm/tpm_tis_spi_slb9670.c:24:5: warning: no previous prototype for 'slb9670_spi_unset_reset'
tree:   https://github.com/l1k/linux smsc95xx_5.17
head: b194077da9627d066b5fa96b0aa1515b3b982d15
commit: 0c5db7c8f524b10886d73cf60256665e5f6df603 [191/199] tpm: tpm_tis_spi_slb_9670: implement set_reset and unset_reset functions
config: h8300-randconfig-r035-20220408 (https://download.01.org/0day-ci/archive/20220408/202204081357.8SfjQosI-lkp@intel.com/config)
compiler: h8300-linux-gcc (GCC) 11.2.0
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://github.com/l1k/linux/commit/0c5db7c8f524b10886d73cf60256665e5f6df603
git remote add l1k https://github.com/l1k/linux
git fetch --no-tags l1k smsc95xx_5.17
git checkout 0c5db7c8f524b10886d73cf60256665e5f6df603
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=h8300 SHELL=/bin/bash drivers/char/tpm/

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/char/tpm/tpm_tis_spi_slb9670.c:24:5: warning: no previous prototype for 'slb9670_spi_unset_reset' [-Wmissing-prototypes]
24 | int slb9670_spi_unset_reset(struct tpm_tis_data *data)
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/char/tpm/tpm_tis_spi_slb9670.c:46:5: warning: no previous prototype for 'slb9670_spi_set_reset' [-Wmissing-prototypes]
46 | int slb9670_spi_set_reset(struct tpm_tis_data *data)
| ^~~~~~~~~~~~~~~~~~~~~


vim +/slb9670_spi_unset_reset +24 drivers/char/tpm/tpm_tis_spi_slb9670.c

23
> 24 int slb9670_spi_unset_reset(struct tpm_tis_data *data)
25 {
26 /*
27 * Perform the reset sequence: we have to deassert and assert the reset
28 * line two times and wait the respective time intervals.
29 * After a last wait interval of RSTIN the chip is ready to receive the
30 * first command.
31 */
32 gpiod_set_value(data->reset_gpio, 0);
33 msleep(SLB9670_TIME_RSTIN);
34 gpiod_set_value(data->reset_gpio, 1);
35 udelay(SLB9670_TIME_WRST);
36 gpiod_set_value(data->reset_gpio, 0);
37 msleep(SLB9670_TIME_RSTIN);
38 gpiod_set_value(data->reset_gpio, 1);
39 udelay(SLB9670_TIME_WRST);
40 gpiod_set_value(data->reset_gpio, 0);
41 msleep(SLB9670_TIME_RSTIN);
42
43 return 0;
44 }
45
> 46 int slb9670_spi_set_reset(struct tpm_tis_data *data)
47 {
48 gpiod_set_value(data->reset_gpio, 1);
49 return 0;
50 }
51

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

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