drivers/video/fbdev/atmel_lcdfb.c:362:20: sparse: sparse: incorrect type in argument 1 (different address spaces)

From: kernel test robot
Date: Sun Aug 09 2020 - 00:33:25 EST

Next message: kernel test robot: "[drm/ttm/nouveau] c36a1cfe1b: BUG:kernel_NULL_pointer_dereference,address"
Previous message: kernel test robot: "drivers/gpu/drm/ttm/ttm_bo_util.c:256:17: sparse: sparse: incorrect type in argument 1 (different address spaces)"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

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@xxxxxxxxx>

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@xxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>

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

Attachment: .config.gz
Description: application/gzip

Next message: kernel test robot: "[drm/ttm/nouveau] c36a1cfe1b: BUG:kernel_NULL_pointer_dereference,address"
Previous message: kernel test robot: "drivers/gpu/drm/ttm/ttm_bo_util.c:256:17: sparse: sparse: incorrect type in argument 1 (different address spaces)"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]