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Date:   Sun, 9 Aug 2020 12:24:41 +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:362:20: 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:   06a81c1c7db9bd5de0bd38cd5acc44bb22b99150
commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces
date:   7 weeks ago
config: i386-randconfig-s031-20200809 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.2-118-ge1578773-dirty
        git checkout 670d0a4b10704667765f7d18f7592993d02783aa
        # save the attached .config to linux build tree
        make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 

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:362:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *p @@     got char [noderef] __iomem *screen_base @@
   drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse:     expected void *p
   drivers/video/fbdev/atmel_lcdfb.c:362:20: 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/pci/controller/pcie-mediatek.c:403:40: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void volatile *address @@     got void [noderef] __iomem * @@
   drivers/pci/controller/pcie-mediatek.c:403:40: sparse:     expected void volatile *address
   drivers/pci/controller/pcie-mediatek.c:403:40: sparse:     got void [noderef] __iomem *
   drivers/pci/controller/pcie-mediatek.c:526:44: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void volatile *address @@     got void [noderef] __iomem * @@
   drivers/pci/controller/pcie-mediatek.c:526:44: sparse:     expected void volatile *address
   drivers/pci/controller/pcie-mediatek.c:526:44: sparse:     got void [noderef] __iomem *
--
>> drivers/hwspinlock/stm32_hwspinlock.c:30:39: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void [noderef] __iomem *lock_addr @@     got void *priv @@
>> drivers/hwspinlock/stm32_hwspinlock.c:30:39: sparse:     expected void [noderef] __iomem *lock_addr
   drivers/hwspinlock/stm32_hwspinlock.c:30:39: sparse:     got void *priv
   drivers/hwspinlock/stm32_hwspinlock.c:41:39: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void [noderef] __iomem *lock_addr @@     got void *priv @@
   drivers/hwspinlock/stm32_hwspinlock.c:41:39: sparse:     expected void [noderef] __iomem *lock_addr
   drivers/hwspinlock/stm32_hwspinlock.c:41:39: sparse:     got void *priv
>> drivers/hwspinlock/stm32_hwspinlock.c:78:39: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *priv @@     got void [noderef] __iomem * @@
   drivers/hwspinlock/stm32_hwspinlock.c:78:39: sparse:     expected void *priv
>> drivers/hwspinlock/stm32_hwspinlock.c:78:39: sparse:     got void [noderef] __iomem *
--
>> drivers/hwspinlock/sirf_hwspinlock.c:35:39: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void [noderef] __iomem *lock_addr @@     got void *priv @@
>> drivers/hwspinlock/sirf_hwspinlock.c:35:39: sparse:     expected void [noderef] __iomem *lock_addr
   drivers/hwspinlock/sirf_hwspinlock.c:35:39: sparse:     got void *priv
   drivers/hwspinlock/sirf_hwspinlock.c:43:39: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void [noderef] __iomem *lock_addr @@     got void *priv @@
   drivers/hwspinlock/sirf_hwspinlock.c:43:39: sparse:     expected void [noderef] __iomem *lock_addr
   drivers/hwspinlock/sirf_hwspinlock.c:43:39: sparse:     got void *priv
>> drivers/hwspinlock/sirf_hwspinlock.c:77:30: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *priv @@     got void [noderef] __iomem * @@
   drivers/hwspinlock/sirf_hwspinlock.c:77:30: sparse:     expected void *priv
>> drivers/hwspinlock/sirf_hwspinlock.c:77:30: sparse:     got void [noderef] __iomem *
--
>> drivers/hwspinlock/sprd_hwspinlock.c:46:34: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void [noderef] __iomem *addr @@     got void *priv @@
>> drivers/hwspinlock/sprd_hwspinlock.c:46:34: sparse:     expected void [noderef] __iomem *addr
   drivers/hwspinlock/sprd_hwspinlock.c:46:34: sparse:     got void *priv
>> drivers/hwspinlock/sprd_hwspinlock.c:64:39: sparse: sparse: incorrect type in initializer (different address spaces) @@     expected void [noderef] __iomem *lock_addr @@     got void *priv @@
>> drivers/hwspinlock/sprd_hwspinlock.c:64:39: sparse:     expected void [noderef] __iomem *lock_addr
   drivers/hwspinlock/sprd_hwspinlock.c:64:39: sparse:     got void *priv
>> drivers/hwspinlock/sprd_hwspinlock.c:131:28: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *priv @@     got void [noderef] __iomem * @@
   drivers/hwspinlock/sprd_hwspinlock.c:131:28: sparse:     expected void *priv
>> drivers/hwspinlock/sprd_hwspinlock.c:131:28: sparse:     got void [noderef] __iomem *

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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