From: kernel test robot <lkp@intel.com>
To: Rosen Penev <rosenp@gmail.com>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
Sergio Paracuellos <sergio.paracuellos@gmail.com>
Subject: arch/mips/ralink/mt7621.c:68:13: sparse: sparse: cast removes address space '__iomem' of expression
Date: Wed, 08 Jul 2026 01:01:52 +0800 [thread overview]
Message-ID: <202607080050.SEfypmVB-lkp@intel.com> (raw)
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: 0e35b9b6ec0ffcc5e23cbdec09f5c622ad532b53
commit: 4ddaf88aadd3bd09c2eb3734c53d2864af6b144e mips: ralink: mt7621: add missing __iomem
date: 6 weeks ago
config: mips-randconfig-r121-20260707 (https://download.01.org/0day-ci/archive/20260708/202607080050.SEfypmVB-lkp@intel.com/config)
compiler: mips-linux-gcc (GCC) 9.5.0
sparse: v0.6.5-rc1
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260708/202607080050.SEfypmVB-lkp@intel.com/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
| Fixes: 4ddaf88aadd3 ("mips: ralink: mt7621: add missing __iomem")
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202607080050.SEfypmVB-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> arch/mips/ralink/mt7621.c:68:13: sparse: sparse: cast removes address space '__iomem' of expression
arch/mips/ralink/mt7621.c: note: in included file (through arch/mips/include/asm/mips-cps.h):
arch/mips/include/asm/mips-cm.h:186:1: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cm.h:186:1: sparse: expected void const volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cm.h:186:1: sparse: got void *
arch/mips/include/asm/mips-cm.h:186:1: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cm.h:186:1: sparse: expected void const volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cm.h:186:1: sparse: got void *
arch/mips/include/asm/mips-cm.h:186:1: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cm.h:186:1: sparse: expected void const volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cm.h:186:1: sparse: got void *
arch/mips/include/asm/mips-cm.h:186:1: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cm.h:186:1: sparse: expected void const volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cm.h:186:1: sparse: got void *
arch/mips/include/asm/mips-cm.h:186:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cm.h:186:1: sparse: expected void *
arch/mips/include/asm/mips-cm.h:186:1: sparse: got void [noderef] __iomem *
arch/mips/include/asm/mips-cm.h:186:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cm.h:186:1: sparse: expected void *
arch/mips/include/asm/mips-cm.h:186:1: sparse: got void [noderef] __iomem *
arch/mips/include/asm/mips-cm.h:186:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cm.h:186:1: sparse: expected void *
arch/mips/include/asm/mips-cm.h:186:1: sparse: got void [noderef] __iomem *
arch/mips/include/asm/mips-cm.h:186:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cm.h:186:1: sparse: expected void *
arch/mips/include/asm/mips-cm.h:186:1: sparse: got void [noderef] __iomem *
arch/mips/include/asm/mips-cm.h:165:1: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cm.h:165:1: sparse: expected void const volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cm.h:165:1: sparse: got void *
arch/mips/include/asm/mips-cm.h:165:1: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cm.h:165:1: sparse: expected void const volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cm.h:165:1: sparse: got void *
arch/mips/include/asm/mips-cm.h:165:1: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cm.h:165:1: sparse: expected void const volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cm.h:165:1: sparse: got void *
arch/mips/include/asm/mips-cm.h:165:1: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cm.h:165:1: sparse: expected void const volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cm.h:165:1: sparse: got void *
arch/mips/include/asm/mips-cm.h:165:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cm.h:165:1: sparse: expected void *
arch/mips/include/asm/mips-cm.h:165:1: sparse: got void [noderef] __iomem *
arch/mips/include/asm/mips-cm.h:165:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cm.h:165:1: sparse: expected void *
arch/mips/include/asm/mips-cm.h:165:1: sparse: got void [noderef] __iomem *
arch/mips/include/asm/mips-cm.h:165:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cm.h:165:1: sparse: expected void *
arch/mips/include/asm/mips-cm.h:165:1: sparse: got void [noderef] __iomem *
arch/mips/include/asm/mips-cm.h:165:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cm.h:165:1: sparse: expected void *
arch/mips/include/asm/mips-cm.h:165:1: sparse: got void [noderef] __iomem *
arch/mips/ralink/mt7621.c: note: in included file (through arch/mips/include/asm/mips-cps.h):
arch/mips/include/asm/mips-cpc.h:100:1: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cpc.h:100:1: sparse: expected void const volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cpc.h:100:1: sparse: got void *
arch/mips/include/asm/mips-cpc.h:100:1: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cpc.h:100:1: sparse: expected void const volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cpc.h:100:1: sparse: got void *
arch/mips/include/asm/mips-cpc.h:100:1: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cpc.h:100:1: sparse: expected void const volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cpc.h:100:1: sparse: got void *
arch/mips/include/asm/mips-cpc.h:100:1: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cpc.h:100:1: sparse: expected void const volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cpc.h:100:1: sparse: got void *
arch/mips/include/asm/mips-cpc.h:100:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cpc.h:100:1: sparse: expected void *
arch/mips/include/asm/mips-cpc.h:100:1: sparse: got void [noderef] __iomem *
arch/mips/include/asm/mips-cpc.h:100:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cpc.h:100:1: sparse: expected void *
arch/mips/include/asm/mips-cpc.h:100:1: sparse: got void [noderef] __iomem *
arch/mips/include/asm/mips-cpc.h:100:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cpc.h:100:1: sparse: expected void *
arch/mips/include/asm/mips-cpc.h:100:1: sparse: got void [noderef] __iomem *
arch/mips/include/asm/mips-cpc.h:100:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cpc.h:100:1: sparse: expected void *
arch/mips/include/asm/mips-cpc.h:100:1: sparse: got void [noderef] __iomem *
arch/mips/ralink/mt7621.c: note: in included file (through arch/mips/include/asm/mips-cps.h):
arch/mips/include/asm/mips-cm.h:237:1: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cm.h:237:1: sparse: expected void volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cm.h:237:1: sparse: got void *
arch/mips/include/asm/mips-cm.h:237:1: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cm.h:237:1: sparse: expected void volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cm.h:237:1: sparse: got void *
arch/mips/include/asm/mips-cm.h:237:1: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cm.h:237:1: sparse: expected void volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cm.h:237:1: sparse: got void *
arch/mips/include/asm/mips-cm.h:237:1: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got void * @@
arch/mips/include/asm/mips-cm.h:237:1: sparse: expected void volatile [noderef] __iomem *mem
arch/mips/include/asm/mips-cm.h:237:1: sparse: got void *
arch/mips/include/asm/mips-cm.h:237:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cm.h:237:1: sparse: expected void *
arch/mips/include/asm/mips-cm.h:237:1: sparse: got void [noderef] __iomem *
arch/mips/include/asm/mips-cm.h:237:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cm.h:237:1: sparse: expected void *
arch/mips/include/asm/mips-cm.h:237:1: sparse: got void [noderef] __iomem *
arch/mips/include/asm/mips-cm.h:237:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cm.h:237:1: sparse: expected void *
arch/mips/include/asm/mips-cm.h:237:1: sparse: got void [noderef] __iomem *
arch/mips/include/asm/mips-cm.h:237:1: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem * @@
arch/mips/include/asm/mips-cm.h:237:1: sparse: expected void *
arch/mips/include/asm/mips-cm.h:237:1: sparse: got void [noderef] __iomem *
arch/mips/include/asm/mips-cm.h:244:1: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *mem @@ got void * @@
vim +/__iomem +68 arch/mips/ralink/mt7621.c
1df7addb9671ac John Crispin 2016-01-04 63
cc19db8b312a6c Chuanhong Guo 2022-02-11 64 static bool __init mt7621_addr_wraparound_test(phys_addr_t size)
cc19db8b312a6c Chuanhong Guo 2022-02-11 65 {
4ddaf88aadd3bd Rosen Penev 2026-05-07 66 void __iomem *dm = (void __iomem *)KSEG1ADDR(&detect_magic);
cc19db8b312a6c Chuanhong Guo 2022-02-11 67
cc19db8b312a6c Chuanhong Guo 2022-02-11 @68 if (CPHYSADDR(dm + size) >= MT7621_LOWMEM_MAX_SIZE)
cc19db8b312a6c Chuanhong Guo 2022-02-11 69 return true;
cc19db8b312a6c Chuanhong Guo 2022-02-11 70 __raw_writel(MT7621_MEM_TEST_PATTERN, dm);
cc19db8b312a6c Chuanhong Guo 2022-02-11 71 if (__raw_readl(dm) != __raw_readl(dm + size))
cc19db8b312a6c Chuanhong Guo 2022-02-11 72 return false;
5d8965704fe566 Ilya Lipnitskiy 2022-02-28 73 __raw_writel(~MT7621_MEM_TEST_PATTERN, dm);
cc19db8b312a6c Chuanhong Guo 2022-02-11 74 return __raw_readl(dm) == __raw_readl(dm + size);
cc19db8b312a6c Chuanhong Guo 2022-02-11 75 }
cc19db8b312a6c Chuanhong Guo 2022-02-11 76
:::::: The code at line 68 was first introduced by commit
:::::: cc19db8b312a6c75645645f5cc1b45166b109006 MIPS: ralink: mt7621: do memory detection on KSEG1
:::::: TO: Chuanhong Guo <gch981213@gmail.com>
:::::: CC: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2026-07-07 17:08 UTC|newest]
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