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Message-ID: <202007040749.Hn9460La%lkp@intel.com>
Date:   Sat, 4 Jul 2020 07:00:55 +0800
From:   kernel test robot <lkp@...el.com>
To:     Luc Van Oostenryck <luc.vanoostenryck@...il.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: drivers/video/fbdev/atmel_lcdfb.c:362:9: sparse: sparse: incorrect
 type in argument 1 (different address spaces)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0c7d7d1fada70420851b63f2e2669cb4976a303b
commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces
date:   2 weeks ago
config: x86_64-randconfig-s021-20200704 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-14) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.2-3-gfa153962-dirty
        git checkout 670d0a4b10704667765f7d18f7592993d02783aa
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=x86_64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>


sparse warnings: (new ones prefixed by >>)

   drivers/video/fbdev/atmel_lcdfb.c:354:27: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected char [noderef] __iomem *screen_base @@     got void * @@
   drivers/video/fbdev/atmel_lcdfb.c:354:27: sparse:     expected char [noderef] __iomem *screen_base
   drivers/video/fbdev/atmel_lcdfb.c:354:27: sparse:     got void *
>> drivers/video/fbdev/atmel_lcdfb.c:362:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *s @@     got char [noderef] __iomem *screen_base @@
   drivers/video/fbdev/atmel_lcdfb.c:362:9: sparse:     expected void *s
   drivers/video/fbdev/atmel_lcdfb.c:362:9: sparse:     got char [noderef] __iomem *screen_base
   drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: sparse: incorrect type in argument 3 (different address spaces) @@     expected void *cpu_addr @@     got char [noderef] __iomem *screen_base @@
   drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse:     expected void *cpu_addr
   drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse:     got char [noderef] __iomem *screen_base
   drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse: sparse: incorrect type in argument 3 (different address spaces) @@     expected void *cpu_addr @@     got char [noderef] __iomem *screen_base @@
   drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse:     expected void *cpu_addr
   drivers/video/fbdev/atmel_lcdfb.c:333:59: sparse:     got char [noderef] __iomem *screen_base
--
>> drivers/video/fbdev/geode/lxfb_ops.c:604:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got void [noderef] __iomem *gp_regs @@
   drivers/video/fbdev/geode/lxfb_ops.c:604:9: sparse:     expected void const *from
   drivers/video/fbdev/geode/lxfb_ops.c:604:9: sparse:     got void [noderef] __iomem *gp_regs
>> drivers/video/fbdev/geode/lxfb_ops.c:605:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got void [noderef] __iomem *dc_regs @@
   drivers/video/fbdev/geode/lxfb_ops.c:605:9: sparse:     expected void const *from
   drivers/video/fbdev/geode/lxfb_ops.c:605:9: sparse:     got void [noderef] __iomem *dc_regs
>> drivers/video/fbdev/geode/lxfb_ops.c:606:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got void [noderef] __iomem *vp_regs @@
   drivers/video/fbdev/geode/lxfb_ops.c:606:9: sparse:     expected void const *from
   drivers/video/fbdev/geode/lxfb_ops.c:606:9: sparse:     got void [noderef] __iomem *vp_regs
>> drivers/video/fbdev/geode/lxfb_ops.c:607:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got void [noderef] __iomem * @@
   drivers/video/fbdev/geode/lxfb_ops.c:607:9: sparse:     expected void const *from
   drivers/video/fbdev/geode/lxfb_ops.c:607:9: sparse:     got void [noderef] __iomem *
   drivers/video/fbdev/geode/lxfb_ops.c:635:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@     expected void const *from @@     got void [noderef] __iomem * @@
   drivers/video/fbdev/geode/lxfb_ops.c:635:9: sparse:     expected void const *from
   drivers/video/fbdev/geode/lxfb_ops.c:635:9: sparse:     got void [noderef] __iomem *
>> drivers/video/fbdev/geode/lxfb_ops.c:761:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *to @@     got void [noderef] __iomem * @@
   drivers/video/fbdev/geode/lxfb_ops.c:761:9: sparse:     expected void *to
   drivers/video/fbdev/geode/lxfb_ops.c:761:9: sparse:     got void [noderef] __iomem *
--
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1483:13: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected int enum vchiq_status ( *__pu_val )( ... ) @@     got void [noderef] __user * @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1483:13: sparse:     expected int enum vchiq_status ( *__pu_val )( ... )
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1483:13: sparse:     got void [noderef] __user *
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1485:13: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *__pu_val @@     got void [noderef] __user * @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1485:13: sparse:     expected void *__pu_val
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1485:13: sparse:     got void [noderef] __user *
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1611:13: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *__pu_val @@     got void [noderef] __user * @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1611:13: sparse:     expected void *__pu_val
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1611:13: sparse:     got void [noderef] __user *
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1613:13: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *__pu_val @@     got void [noderef] __user * @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1613:13: sparse:     expected void *__pu_val
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1613:13: sparse:     got void [noderef] __user *
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1688:13: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct vchiq_completion_data *__pu_val @@     got void [noderef] __user * @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1688:13: sparse:     expected struct vchiq_completion_data *__pu_val
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1688:13: sparse:     got void [noderef] __user *
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1691:13: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void **__pu_val @@     got void [noderef] __user * @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1691:13: sparse:     expected void **__pu_val
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1691:13: sparse:     got void [noderef] __user *
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1738:13: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected struct vchiq_completion_data *__pu_val @@     got struct vchiq_completion_data [noderef] __user *[assigned] completion @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1738:13: sparse:     expected struct vchiq_completion_data *__pu_val
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1738:13: sparse:     got struct vchiq_completion_data [noderef] __user *[assigned] completion
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1768:59: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void [noderef] __user *uptr @@     got struct vchiq_header *[addressable] header @@
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1768:59: sparse:     expected void [noderef] __user *uptr
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1768:59: sparse:     got struct vchiq_header *[addressable] header
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1770:45: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void [noderef] __user *uptr @@     got void *[addressable] service_userdata @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1770:45: sparse:     expected void [noderef] __user *uptr
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1770:45: sparse:     got void *[addressable] service_userdata
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1772:45: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void [noderef] __user *uptr @@     got void *[addressable] bulk_userdata @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1772:45: sparse:     expected void [noderef] __user *uptr
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1772:45: sparse:     got void *[addressable] bulk_userdata
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1826:13: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *__pu_val @@     got void [noderef] __user * @@
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1826:13: sparse:     expected void *__pu_val
   drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c:1826:13: sparse:     got void [noderef] __user *

vim +362 drivers/video/fbdev/atmel_lcdfb.c

14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  336  
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  337  /**
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  338   *	atmel_lcdfb_alloc_video_memory - Allocate framebuffer memory
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  339   *	@sinfo: the frame buffer to allocate memory for
1d01e83557105e drivers/video/atmel_lcdfb.c       Krzysztof Helt     2009-07-08  340   * 	
1d01e83557105e drivers/video/atmel_lcdfb.c       Krzysztof Helt     2009-07-08  341   * 	This function is called only from the atmel_lcdfb_probe()
1d01e83557105e drivers/video/atmel_lcdfb.c       Krzysztof Helt     2009-07-08  342   * 	so no locking by fb_info->mm_lock around smem_len setting is needed.
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  343   */
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  344  static int atmel_lcdfb_alloc_video_memory(struct atmel_lcdfb_info *sinfo)
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  345  {
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  346  	struct fb_info *info = sinfo->info;
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  347  	struct fb_var_screeninfo *var = &info->var;
ea757acad5a518 drivers/video/atmel_lcdfb.c       Haavard Skinnemoen 2008-08-12  348  	unsigned int smem_len;
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  349  
ea757acad5a518 drivers/video/atmel_lcdfb.c       Haavard Skinnemoen 2008-08-12  350  	smem_len = (var->xres_virtual * var->yres_virtual
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  351  		    * ((var->bits_per_pixel + 7) / 8));
ea757acad5a518 drivers/video/atmel_lcdfb.c       Haavard Skinnemoen 2008-08-12  352  	info->fix.smem_len = max(smem_len, sinfo->smem_len);
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  353  
f6e45661f9be54 drivers/video/fbdev/atmel_lcdfb.c Luis R. Rodriguez  2016-01-22  354  	info->screen_base = dma_alloc_wc(info->device, info->fix.smem_len,
f6e45661f9be54 drivers/video/fbdev/atmel_lcdfb.c Luis R. Rodriguez  2016-01-22  355  					 (dma_addr_t *)&info->fix.smem_start,
f6e45661f9be54 drivers/video/fbdev/atmel_lcdfb.c Luis R. Rodriguez  2016-01-22  356  					 GFP_KERNEL);
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  357  
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  358  	if (!info->screen_base) {
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  359  		return -ENOMEM;
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  360  	}
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  361  
01d3a5e7fab773 drivers/video/atmel_lcdfb.c       Haavard Skinnemoen 2008-04-28 @362  	memset(info->screen_base, 0, info->fix.smem_len);
01d3a5e7fab773 drivers/video/atmel_lcdfb.c       Haavard Skinnemoen 2008-04-28  363  
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  364  	return 0;
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  365  }
14340586148e7c drivers/video/atmel_lcdfb.c       Nicolas Ferre      2007-05-10  366  

:::::: The code at line 362 was first introduced by commit
:::::: 01d3a5e7fab7732cfc5d5d4533e9378ea435295a atmel_lcdfb: don't initialize a pre-allocated framebuffer

:::::: TO: Haavard Skinnemoen <hskinnemoen@...el.com>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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