drivers/uio/uio_aec.c:50:49: sparse: sparse: incorrect type in argument 1 (different address spaces)

From: kernel test robot
Date: Sun Dec 10 2023 - 04:39:46 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: c527f5606aa545233a4d2c6d5c636ed82b8633ef
commit: 8f28ca6bd8211214faf717677bbffe375c2a6072 iomap: constify ioreadX() iomem argument (as in generic implementation)
date: 3 years, 4 months ago
config: parisc-randconfig-m041-20230821 (https://download.01.org/0day-ci/archive/20231210/202312101757.CMITvKFp-lkp@xxxxxxxxx/config)
compiler: hppa-linux-gcc (GCC) 12.3.0
reproduce: (https://download.01.org/0day-ci/archive/20231210/202312101757.CMITvKFp-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/202312101757.CMITvKFp-lkp@xxxxxxxxx/

sparse warnings: (new ones prefixed by >>)
drivers/uio/uio_aec.c:44:49: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __iomem *int_flag @@ got void * @@
drivers/uio/uio_aec.c:44:49: sparse: expected void [noderef] __iomem *int_flag
drivers/uio/uio_aec.c:44:49: sparse: got void *
>> drivers/uio/uio_aec.c:50:49: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got void * @@
drivers/uio/uio_aec.c:50:49: sparse: expected void const [noderef] __iomem *
drivers/uio/uio_aec.c:50:49: sparse: got void *
drivers/uio/uio_aec.c:59:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got void * @@
drivers/uio/uio_aec.c:59:9: sparse: expected void const [noderef] __iomem *
drivers/uio/uio_aec.c:59:9: sparse: got void *
drivers/uio/uio_aec.c:59:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got void * @@
drivers/uio/uio_aec.c:59:9: sparse: expected void const [noderef] __iomem *
drivers/uio/uio_aec.c:59:9: sparse: got void *
drivers/uio/uio_aec.c:59:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got void * @@
drivers/uio/uio_aec.c:59:9: sparse: expected void const [noderef] __iomem *
drivers/uio/uio_aec.c:59:9: sparse: got void *
drivers/uio/uio_aec.c:59:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got void * @@
drivers/uio/uio_aec.c:59:9: sparse: expected void const [noderef] __iomem *
drivers/uio/uio_aec.c:59:9: sparse: got void *
drivers/uio/uio_aec.c:59:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got void * @@
drivers/uio/uio_aec.c:59:9: sparse: expected void const [noderef] __iomem *
drivers/uio/uio_aec.c:59:9: sparse: got void *
drivers/uio/uio_aec.c:59:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got void * @@
drivers/uio/uio_aec.c:59:9: sparse: expected void const [noderef] __iomem *
drivers/uio/uio_aec.c:59:9: sparse: got void *
drivers/uio/uio_aec.c:88:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *priv @@ got void [noderef] __iomem * @@
drivers/uio/uio_aec.c:88:20: sparse: expected void *priv
drivers/uio/uio_aec.c:88:20: sparse: got void [noderef] __iomem *
drivers/uio/uio_aec.c:104:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got void * @@
drivers/uio/uio_aec.c:104:42: sparse: expected void [noderef] __iomem *
drivers/uio/uio_aec.c:104:42: sparse: got void *
drivers/uio/uio_aec.c:105:43: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got void * @@
drivers/uio/uio_aec.c:105:43: sparse: expected void [noderef] __iomem *
drivers/uio/uio_aec.c:105:43: sparse: got void *
drivers/uio/uio_aec.c:106:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got void * @@
drivers/uio/uio_aec.c:106:34: sparse: expected void const [noderef] __iomem *
drivers/uio/uio_aec.c:106:34: sparse: got void *
drivers/uio/uio_aec.c:115:31: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got void *priv @@
drivers/uio/uio_aec.c:115:31: sparse: expected void [noderef] __iomem *
drivers/uio/uio_aec.c:115:31: sparse: got void *priv
drivers/uio/uio_aec.c:130:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got void * @@
drivers/uio/uio_aec.c:130:42: sparse: expected void [noderef] __iomem *
drivers/uio/uio_aec.c:130:42: sparse: got void *
drivers/uio/uio_aec.c:131:43: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got void * @@
drivers/uio/uio_aec.c:131:43: sparse: expected void [noderef] __iomem *
drivers/uio/uio_aec.c:131:43: sparse: got void *
drivers/uio/uio_aec.c:133:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem * @@ got void * @@
drivers/uio/uio_aec.c:133:28: sparse: expected void const [noderef] __iomem *
drivers/uio/uio_aec.c:133:28: sparse: got void *
drivers/uio/uio_aec.c:138:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void *priv @@
drivers/uio/uio_aec.c:138:21: sparse: expected void const volatile [noderef] __iomem *addr
drivers/uio/uio_aec.c:138:21: sparse: got void *priv

vim +50 drivers/uio/uio_aec.c

1bafeb378e915f Brandon Philips 2009-01-27 41
1bafeb378e915f Brandon Philips 2009-01-27 42 static irqreturn_t aectc_irq(int irq, struct uio_info *dev_info)
1bafeb378e915f Brandon Philips 2009-01-27 43 {
1bafeb378e915f Brandon Philips 2009-01-27 44 void __iomem *int_flag = dev_info->priv + INTA_DRVR_ADDR;
1bafeb378e915f Brandon Philips 2009-01-27 45 unsigned char status = ioread8(int_flag);
1bafeb378e915f Brandon Philips 2009-01-27 46
1bafeb378e915f Brandon Philips 2009-01-27 47
1bafeb378e915f Brandon Philips 2009-01-27 48 if ((status & INTA_ENABLED_FLAG) && (status & INTA_FLAG)) {
1bafeb378e915f Brandon Philips 2009-01-27 49 /* application writes 0x00 to 0x2F to get next interrupt */
1bafeb378e915f Brandon Philips 2009-01-27 @50 status = ioread8(dev_info->priv + MAILBOX);
1bafeb378e915f Brandon Philips 2009-01-27 51 return IRQ_HANDLED;
1bafeb378e915f Brandon Philips 2009-01-27 52 }
1bafeb378e915f Brandon Philips 2009-01-27 53
1bafeb378e915f Brandon Philips 2009-01-27 54 return IRQ_NONE;
1bafeb378e915f Brandon Philips 2009-01-27 55 }
1bafeb378e915f Brandon Philips 2009-01-27 56

:::::: The code at line 50 was first introduced by commit
:::::: 1bafeb378e915f39b1bf44ee0871823d6f402ea5 uio: add the uio_aec driver

:::::: TO: Brandon Philips <brandon@xxxxxxxx>
:::::: CC: Greg Kroah-Hartman <gregkh@xxxxxxx>

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https://github.com/intel/lkp-tests/wiki

Next message: Ajay Garg: "Preemption VS Interrupts"
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Next in thread: kernel test robot: "drivers/uio/uio_aec.c:50:49: sparse: sparse: incorrect type in argument 1 (different address spaces)"
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