drivers/spi/spi-mpc52xx-psc.c:195:5: sparse: sparse: symbol 'mpc52xx_psc_spi_transfer_one_message' was not declared. Should it be static?

From: kernel test robot
Date: Mon May 15 2023 - 07:19:25 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: f1fcbaa18b28dec10281551dfe6ed3a3ed80e3d6
commit: 145cfc3840e5931a789a8e2e76af841ab4cad44b spi: mpc52xx-psc: Switch to using core message queue
date: 11 months ago
config: powerpc-randconfig-s051-20230515 (https://download.01.org/0day-ci/archive/20230515/202305151908.MNazRAGc-lkp@xxxxxxxxx/config)
compiler: powerpc-linux-gcc (GCC) 12.1.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.4-39-gce1a6720-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=145cfc3840e5931a789a8e2e76af841ab4cad44b
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 145cfc3840e5931a789a8e2e76af841ab4cad44b
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc olddefconfig
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc SHELL=/bin/bash drivers/spi/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Link: https://lore.kernel.org/oe-kbuild-all/202305151908.MNazRAGc-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
>> drivers/spi/spi-mpc52xx-psc.c:195:5: sparse: sparse: symbol 'mpc52xx_psc_spi_transfer_one_message' was not declared. Should it be static?
drivers/spi/spi-mpc52xx-psc.c:398:19: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int const [usertype] *regaddr_p @@ got restricted __be32 const [usertype] * @@
drivers/spi/spi-mpc52xx-psc.c:398:19: sparse: expected unsigned int const [usertype] *regaddr_p
drivers/spi/spi-mpc52xx-psc.c:398:19: sparse: got restricted __be32 const [usertype] *
drivers/spi/spi-mpc52xx-psc.c:403:59: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted __be32 const [usertype] *addr @@ got unsigned int const [usertype] *regaddr_p @@
drivers/spi/spi-mpc52xx-psc.c:403:59: sparse: expected restricted __be32 const [usertype] *addr
drivers/spi/spi-mpc52xx-psc.c:403:59: sparse: got unsigned int const [usertype] *regaddr_p

vim +/mpc52xx_psc_spi_transfer_one_message +195 drivers/spi/spi-mpc52xx-psc.c

177
178 int mpc52xx_psc_spi_transfer_one_message(struct spi_controller *ctlr,
179 struct spi_message *m)
180 {
181 struct spi_device *spi;
182 struct spi_transfer *t = NULL;
183 unsigned cs_change;
184 int status;
185
186 spi = m->spi;
187 cs_change = 1;
188 status = 0;
189 list_for_each_entry (t, &m->transfers, transfer_list) {
190 if (t->bits_per_word || t->speed_hz) {
191 status = mpc52xx_psc_spi_transfer_setup(spi, t);
192 if (status < 0)
193 break;
194 }
> 195
196 if (cs_change)
197 mpc52xx_psc_spi_activate_cs(spi);
198 cs_change = t->cs_change;
199
200 status = mpc52xx_psc_spi_transfer_rxtx(spi, t);
201 if (status)
202 break;
203 m->actual_length += t->len;
204
205 spi_transfer_delay_exec(t);
206 }
207
208 m->status = status;
209
210 mpc52xx_psc_spi_transfer_setup(spi, NULL);
211
212 spi_finalize_current_message(ctlr);
213
214 return 0;
215 }
216

--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests