drivers/spi/spi-lp8841-rtc.c:112:17: sparse: sparse: incorrect type in argument 1 (different address spaces)

From: kernel test robot
Date: Mon Dec 04 2023 - 09:13:03 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 33cc938e65a98f1d29d0a18403dbbee050dcad9a
commit: e5fc436f06eef54ef512ea55a9db8eb9f2e76959 sparse: use static inline for __chk_{user,io}_ptr()
date: 3 years, 3 months ago
config: sh-randconfig-r133-20231118 (https://download.01.org/0day-ci/archive/20231204/202312042226.NQmCRdOG-lkp@xxxxxxxxx/config)
compiler: sh4-linux-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231204/202312042226.NQmCRdOG-lkp@xxxxxxxxx/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312042226.NQmCRdOG-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
>> drivers/spi/spi-lp8841-rtc.c:112:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *ptr @@ got void *iomem @@
drivers/spi/spi-lp8841-rtc.c:112:17: sparse: expected void const volatile [noderef] __iomem *ptr
drivers/spi/spi-lp8841-rtc.c:112:17: sparse: got void *iomem
drivers/spi/spi-lp8841-rtc.c:121:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *ptr @@ got void *iomem @@
drivers/spi/spi-lp8841-rtc.c:121:17: sparse: expected void const volatile [noderef] __iomem *ptr
drivers/spi/spi-lp8841-rtc.c:121:17: sparse: got void *iomem
drivers/spi/spi-lp8841-rtc.c:143:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *ptr @@ got void *iomem @@
drivers/spi/spi-lp8841-rtc.c:143:9: sparse: expected void const volatile [noderef] __iomem *ptr
drivers/spi/spi-lp8841-rtc.c:143:9: sparse: got void *iomem
drivers/spi/spi-lp8841-rtc.c:147:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *ptr @@ got void *iomem @@
drivers/spi/spi-lp8841-rtc.c:147:17: sparse: expected void const volatile [noderef] __iomem *ptr
drivers/spi/spi-lp8841-rtc.c:147:17: sparse: got void *iomem
drivers/spi/spi-lp8841-rtc.c:209:21: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *iomem @@ got void [noderef] __iomem * @@
drivers/spi/spi-lp8841-rtc.c:209:21: sparse: expected void *iomem
drivers/spi/spi-lp8841-rtc.c:209:21: sparse: got void [noderef] __iomem *
drivers/spi/spi-lp8841-rtc.c:57:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *ptr @@ got void *iomem @@
drivers/spi/spi-lp8841-rtc.c:57:9: sparse: expected void const volatile [noderef] __iomem *ptr
drivers/spi/spi-lp8841-rtc.c:57:9: sparse: got void *iomem
drivers/spi/spi-lp8841-rtc.c:63:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got void *iomem @@
drivers/spi/spi-lp8841-rtc.c:63:28: sparse: expected void const [noderef] __iomem *
drivers/spi/spi-lp8841-rtc.c:63:28: sparse: got void *iomem
drivers/spi/spi-lp8841-rtc.c:47:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *ptr @@ got void *iomem @@
drivers/spi/spi-lp8841-rtc.c:47:9: sparse: expected void const volatile [noderef] __iomem *ptr
drivers/spi/spi-lp8841-rtc.c:47:9: sparse: got void *iomem
drivers/spi/spi-lp8841-rtc.c:47:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *ptr @@ got void *iomem @@
drivers/spi/spi-lp8841-rtc.c:47:9: sparse: expected void const volatile [noderef] __iomem *ptr
drivers/spi/spi-lp8841-rtc.c:47:9: sparse: got void *iomem
drivers/spi/spi-lp8841-rtc.c:57:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *ptr @@ got void *iomem @@
drivers/spi/spi-lp8841-rtc.c:57:9: sparse: expected void const volatile [noderef] __iomem *ptr
drivers/spi/spi-lp8841-rtc.c:57:9: sparse: got void *iomem
drivers/spi/spi-lp8841-rtc.c:63:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got void *iomem @@
drivers/spi/spi-lp8841-rtc.c:63:28: sparse: expected void const [noderef] __iomem *
drivers/spi/spi-lp8841-rtc.c:63:28: sparse: got void *iomem
drivers/spi/spi-lp8841-rtc.c:47:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *ptr @@ got void *iomem @@
drivers/spi/spi-lp8841-rtc.c:47:9: sparse: expected void const volatile [noderef] __iomem *ptr
drivers/spi/spi-lp8841-rtc.c:47:9: sparse: got void *iomem
drivers/spi/spi-lp8841-rtc.c:47:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *ptr @@ got void *iomem @@
drivers/spi/spi-lp8841-rtc.c:47:9: sparse: expected void const volatile [noderef] __iomem *ptr
drivers/spi/spi-lp8841-rtc.c:47:9: sparse: got void *iomem

vim +112 drivers/spi/spi-lp8841-rtc.c

7ecbfff6711fb3 Sergei Ianovich 2016-02-23 97
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 98 static int
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 99 spi_lp8841_rtc_transfer_one(struct spi_master *master,
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 100 struct spi_device *spi,
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 101 struct spi_transfer *t)
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 102 {
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 103 struct spi_lp8841_rtc *data = spi_master_get_devdata(master);
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 104 unsigned count = t->len;
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 105 const u8 *tx = t->tx_buf;
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 106 u8 *rx = t->rx_buf;
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 107 u8 word = 0;
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 108 int ret = 0;
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 109
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 110 if (tx) {
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 111 data->state &= ~SPI_LP8841_RTC_nWE;
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 @112 writeb(data->state, data->iomem);
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 113 while (likely(count > 0)) {
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 114 word = *tx++;
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 115 bitbang_txrx_be_cpha0_lsb(data, 1, 0,
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 116 SPI_MASTER_NO_RX, word, 8);
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 117 count--;
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 118 }
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 119 } else if (rx) {
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 120 data->state |= SPI_LP8841_RTC_nWE;
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 121 writeb(data->state, data->iomem);
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 122 while (likely(count > 0)) {
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 123 word = bitbang_txrx_be_cpha0_lsb(data, 1, 0,
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 124 SPI_MASTER_NO_TX, word, 8);
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 125 *rx++ = word;
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 126 count--;
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 127 }
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 128 } else {
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 129 ret = -EINVAL;
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 130 }
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 131
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 132 spi_finalize_current_transfer(master);
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 133
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 134 return ret;
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 135 }
7ecbfff6711fb3 Sergei Ianovich 2016-02-23 136

:::::: The code at line 112 was first introduced by commit
:::::: 7ecbfff6711fb331591003ac32c002ce55a0758f spi: master driver to enable RTC on ICPDAS LP-8841

:::::: TO: Sergei Ianovich <ynvich@xxxxxxxxx>
:::::: CC: Mark Brown <broonie@xxxxxxxxxx>

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