drivers/spi/spi-orion.c:409:24: sparse: sparse: incorrect type in argument 1 (different base types)

kernel test robot
2020-10-04T05:10:13Z

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 22fbc037cd32e4e6771d2271b565806cfb8c134c
commit: 80591e61a0f7e88deaada69844e4a31280c4a38f kbuild: tell sparse about the $ARCH
date: 11 months ago
config: alpha-randconfig-s032-20201004 (attached as .config)
compiler: alpha-linux-gcc (GCC) 9.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.2-201-g24bdaac6-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=80591e61a0f7e88deaada69844e4a31280c4a38f
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 80591e61a0f7e88deaada69844e4a31280c4a38f
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=alpha

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

echo
echo "sparse warnings: (new ones prefixed by >>)"
echo
>> drivers/spi/spi-orion.c:409:24: sparse: sparse: incorrect type in argument 1 (different base types) @@ expected unsigned int [usertype] b @@ got restricted __le16 [usertype] @@
>> drivers/spi/spi-orion.c:409:24: sparse: expected unsigned int [usertype] b
drivers/spi/spi-orion.c:409:24: sparse: got restricted __le16 [usertype]
drivers/spi/spi-orion.c:419:17: sparse: sparse: cast to restricted __le16
drivers/spi/spi-orion.c:419:17: sparse: sparse: cast to restricted __le16
drivers/spi/spi-orion.c:419:17: sparse: sparse: cast to restricted __le16
drivers/spi/spi-orion.c:419:17: sparse: sparse: cast to restricted __le16

vim +409 drivers/spi/spi-orion.c

60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 392
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 393 static inline int
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 394 orion_spi_write_read_16bit(struct spi_device *spi,
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 395 const u16 **tx_buf, u16 **rx_buf)
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 396 {
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 397 void __iomem *tx_reg, *rx_reg, *int_reg;
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 398 struct orion_spi *orion_spi;
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 399
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 400 orion_spi = spi_master_get_devdata(spi->master);
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 401 tx_reg = spi_reg(orion_spi, ORION_SPI_DATA_OUT_REG);
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 402 rx_reg = spi_reg(orion_spi, ORION_SPI_DATA_IN_REG);
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 403 int_reg = spi_reg(orion_spi, ORION_SPI_INT_CAUSE_REG);
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 404
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 405 /* clear the interrupt cause register */
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 406 writel(0x0, int_reg);
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 407
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 408 if (tx_buf && *tx_buf)
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 @409 writel(__cpu_to_le16(get_unaligned((*tx_buf)++)), tx_reg);
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 410 else
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 411 writel(0, tx_reg);
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 412
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 413 if (orion_spi_wait_till_ready(orion_spi) < 0) {
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 414 dev_err(&spi->dev, "TXS timed out\n");
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 415 return -1;
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 416 }
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 417
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 418 if (rx_buf && *rx_buf)
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 419 put_unaligned(__le16_to_cpu(readl(rx_reg)), (*rx_buf)++);
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 420
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 421 return 1;
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 422 }
60cadec9da7b6c drivers/spi/orion_spi.c Shadi Ammouri 2008-08-05 423

:::::: The code at line 409 was first introduced by commit
:::::: 60cadec9da7b6c91aca51f408c828f7e74a68379 spi: new orion_spi driver

:::::: TO: Shadi Ammouri <shadi@marvell.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

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

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