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orviesa003.jf.intel.com with ESMTP; 04 Oct 2026 05:55:41 -0700 Received: from kbuild by 3a02ec7efc9f with local (Exim 4.98.2) (envelope-from ) id 1xDLkh-000000000IH-0C5I; Sun, 04 Oct 2026 12:55:39 +0000 Date: Sun, 04 Oct 2026 14:54:42 +0200 From: kernel test robot To: Rosen Penev Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Thomas Bogendoerfer , Sergio Paracuellos Subject: arch/mips/ralink/mt7621.c:68:13: sparse: sparse: cast removes address space '__iomem' of expression Message-ID: <202610041411.uJXWXF8i-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 6addb4f385570ebc11c4eb499a4f1c149f313e84 commit: 4ddaf88aadd3bd09c2eb3734c53d2864af6b144e mips: ralink: mt7621: add missing __iomem date: 4 months ago config: mips-randconfig-r2304-20261004 (https://download.01.org/0day-ci/archive/20261004/202610041411.uJXWXF8i-lkp@intel.com/config) compiler: mips-linux-gcc (GCC) 8.5.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20261004/202610041411.uJXWXF8i-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202610041411.uJXWXF8i-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 :::::: CC: Thomas Bogendoerfer -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki