linux-kernel - include/linux/platform_device.h:91:23: sparse: sparse: incorrect type in return expression (different address spaces)

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Date:   Mon, 11 Dec 2023 17:18:03 +0800
From:   kernel test robot <philip.li@...el.com>
To:     Mark Brown <broonie@...nel.org>
CC:     <oe-kbuild-all@...ts.linux.dev>, <linux-kernel@...r.kernel.org>,
        "Takashi Iwai" <tiwai@...e.de>
Subject: include/linux/platform_device.h:91:23: sparse: sparse: incorrect
 type in return expression (different address spaces)

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   7475e51b87969e01a6812eac713a1c8310372e8a
commit: 512d092d78823f9813f4af38090b33c454137a4c ALSA: Enable build with UML
date:   4 months ago
:::::: branch date: 12 hours ago
:::::: commit date: 4 months ago
config: um-randconfig-r122-20231117 (https://download.01.org/0day-ci/archive/20231117/202311170948.rDwaXfji-lkp@intel.com/config)
compiler: gcc-12 (Debian 12.2.0-14) 12.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231117/202311170948.rDwaXfji-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
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/r/202311170948.rDwaXfji-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   sound/soc/codecs/inno_rk3036.c: note: in included file (through include/sound/soc.h):
>> include/linux/platform_device.h:91:23: sparse: sparse: incorrect type in return expression (different address spaces) @@     expected void [noderef] __iomem * @@     got void * @@
   include/linux/platform_device.h:91:23: sparse:     expected void [noderef] __iomem *
   include/linux/platform_device.h:91:23: sparse:     got void *
--
   sound/soc/codecs/msm8916-wcd-digital.c: note: in included file:
>> include/linux/platform_device.h:91:23: sparse: sparse: incorrect type in return expression (different address spaces) @@     expected void [noderef] __iomem * @@     got void * @@
   include/linux/platform_device.h:91:23: sparse:     expected void [noderef] __iomem *
   include/linux/platform_device.h:91:23: sparse:     got void *
--
   sound/soc/codecs/rk3328_codec.c: note: in included file:
>> include/linux/platform_device.h:91:23: sparse: sparse: incorrect type in return expression (different address spaces) @@     expected void [noderef] __iomem * @@     got void * @@
   include/linux/platform_device.h:91:23: sparse:     expected void [noderef] __iomem *
   include/linux/platform_device.h:91:23: sparse:     got void *
--
   sound/soc/codecs/lpass-wsa-macro.c: note: in included file:
>> include/linux/platform_device.h:91:23: sparse: sparse: incorrect type in return expression (different address spaces) @@     expected void [noderef] __iomem * @@     got void * @@
   include/linux/platform_device.h:91:23: sparse:     expected void [noderef] __iomem *
   include/linux/platform_device.h:91:23: sparse:     got void *
--
   sound/soc/codecs/lpass-va-macro.c: note: in included file (through include/linux/of_device.h, include/linux/of_platform.h):
>> include/linux/platform_device.h:91:23: sparse: sparse: incorrect type in return expression (different address spaces) @@     expected void [noderef] __iomem * @@     got void * @@
   include/linux/platform_device.h:91:23: sparse:     expected void [noderef] __iomem *
   include/linux/platform_device.h:91:23: sparse:     got void *
--
   sound/soc/codecs/lpass-rx-macro.c: note: in included file:
>> include/linux/platform_device.h:91:23: sparse: sparse: incorrect type in return expression (different address spaces) @@     expected void [noderef] __iomem * @@     got void * @@
   include/linux/platform_device.h:91:23: sparse:     expected void [noderef] __iomem *
   include/linux/platform_device.h:91:23: sparse:     got void *

vim +91 include/linux/platform_device.h

a0c74f6c9ea9ce Mark Brown 2023-07-18  85  
a0c74f6c9ea9ce Mark Brown 2023-07-18  86  
a0c74f6c9ea9ce Mark Brown 2023-07-18  87  static inline void __iomem *
a0c74f6c9ea9ce Mark Brown 2023-07-18  88  devm_platform_ioremap_resource(struct platform_device *pdev,
a0c74f6c9ea9ce Mark Brown 2023-07-18  89  			       unsigned int index)
a0c74f6c9ea9ce Mark Brown 2023-07-18  90  {
a0c74f6c9ea9ce Mark Brown 2023-07-18 @91  	return ERR_PTR(-EINVAL);
a0c74f6c9ea9ce Mark Brown 2023-07-18  92  }
a0c74f6c9ea9ce Mark Brown 2023-07-18  93  

:::::: The code at line 91 was first introduced by commit
:::::: a0c74f6c9ea9cebd7a8f38142bf87e7c12c2905d platform: Provide stubs for !HAS_IOMEM builds

:::::: TO: Mark Brown <broonie@...nel.org>
:::::: CC: Mark Brown <broonie@...nel.org>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki