From: kernel test robot <lkp@intel.com>
To: "Thomas Weißschuh " <thomas.weissschuh@linutronix.de>
Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org,
Shuah Khan <skhan@linuxfoundation.org>,
Johannes Berg <johannes@sipsolutions.net>,
David Gow <davidgow@google.com>
Subject: drivers/gpu/drm/loongson/lsdc_benchmark.c:27:35: sparse: sparse: incorrect type in argument 1 (different address spaces)
Date: Thu, 22 Jan 2026 15:31:58 +0800 [thread overview]
Message-ID: <202601221514.Fm7yxAFX-lkp@intel.com> (raw)
Hi Thomas,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: cf38b2340c0e60ef695b7137440a4d187ed49c88
commit: 031cdd3bc3f369553933c1b0f4cb18000162c8ff kunit: Enable PCI on UML without triggering WARN()
date: 4 months ago
config: um-randconfig-r123-20260120 (https://download.01.org/0day-ci/archive/20260122/202601221514.Fm7yxAFX-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260122/202601221514.Fm7yxAFX-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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601221514.Fm7yxAFX-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
>> drivers/gpu/drm/loongson/lsdc_benchmark.c:27:35: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *kptr @@
drivers/gpu/drm/loongson/lsdc_benchmark.c:27:35: sparse: expected void volatile [noderef] __iomem *addr
drivers/gpu/drm/loongson/lsdc_benchmark.c:27:35: sparse: got void *kptr
>> drivers/gpu/drm/loongson/lsdc_benchmark.c:42:51: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void *kptr @@
drivers/gpu/drm/loongson/lsdc_benchmark.c:42:51: sparse: expected void const volatile [noderef] __iomem *addr
drivers/gpu/drm/loongson/lsdc_benchmark.c:42:51: sparse: got void *kptr
vim +27 drivers/gpu/drm/loongson/lsdc_benchmark.c
f39db26c54281d Sui Jingfeng 2023-06-15 12
f39db26c54281d Sui Jingfeng 2023-06-15 13 typedef void (*lsdc_copy_proc_t)(struct lsdc_bo *src_bo,
f39db26c54281d Sui Jingfeng 2023-06-15 14 struct lsdc_bo *dst_bo,
f39db26c54281d Sui Jingfeng 2023-06-15 15 unsigned int size,
f39db26c54281d Sui Jingfeng 2023-06-15 16 int n);
f39db26c54281d Sui Jingfeng 2023-06-15 17
f39db26c54281d Sui Jingfeng 2023-06-15 18 static void lsdc_copy_gtt_to_vram_cpu(struct lsdc_bo *src_bo,
f39db26c54281d Sui Jingfeng 2023-06-15 19 struct lsdc_bo *dst_bo,
f39db26c54281d Sui Jingfeng 2023-06-15 20 unsigned int size,
f39db26c54281d Sui Jingfeng 2023-06-15 21 int n)
f39db26c54281d Sui Jingfeng 2023-06-15 22 {
f39db26c54281d Sui Jingfeng 2023-06-15 23 lsdc_bo_kmap(src_bo);
f39db26c54281d Sui Jingfeng 2023-06-15 24 lsdc_bo_kmap(dst_bo);
f39db26c54281d Sui Jingfeng 2023-06-15 25
f39db26c54281d Sui Jingfeng 2023-06-15 26 while (n--)
f39db26c54281d Sui Jingfeng 2023-06-15 @27 memcpy_toio(dst_bo->kptr, src_bo->kptr, size);
f39db26c54281d Sui Jingfeng 2023-06-15 28
f39db26c54281d Sui Jingfeng 2023-06-15 29 lsdc_bo_kunmap(src_bo);
f39db26c54281d Sui Jingfeng 2023-06-15 30 lsdc_bo_kunmap(dst_bo);
f39db26c54281d Sui Jingfeng 2023-06-15 31 }
f39db26c54281d Sui Jingfeng 2023-06-15 32
f39db26c54281d Sui Jingfeng 2023-06-15 33 static void lsdc_copy_vram_to_gtt_cpu(struct lsdc_bo *src_bo,
f39db26c54281d Sui Jingfeng 2023-06-15 34 struct lsdc_bo *dst_bo,
f39db26c54281d Sui Jingfeng 2023-06-15 35 unsigned int size,
f39db26c54281d Sui Jingfeng 2023-06-15 36 int n)
f39db26c54281d Sui Jingfeng 2023-06-15 37 {
f39db26c54281d Sui Jingfeng 2023-06-15 38 lsdc_bo_kmap(src_bo);
f39db26c54281d Sui Jingfeng 2023-06-15 39 lsdc_bo_kmap(dst_bo);
f39db26c54281d Sui Jingfeng 2023-06-15 40
f39db26c54281d Sui Jingfeng 2023-06-15 41 while (n--)
f39db26c54281d Sui Jingfeng 2023-06-15 @42 memcpy_fromio(dst_bo->kptr, src_bo->kptr, size);
f39db26c54281d Sui Jingfeng 2023-06-15 43
f39db26c54281d Sui Jingfeng 2023-06-15 44 lsdc_bo_kunmap(src_bo);
f39db26c54281d Sui Jingfeng 2023-06-15 45 lsdc_bo_kunmap(dst_bo);
f39db26c54281d Sui Jingfeng 2023-06-15 46 }
f39db26c54281d Sui Jingfeng 2023-06-15 47
:::::: The code at line 27 was first introduced by commit
:::::: f39db26c54281da6a785259498ca74b5e470476f drm: Add kms driver for loongson display controller
:::::: TO: Sui Jingfeng <suijingfeng@loongson.cn>
:::::: CC: Sui Jingfeng <suijingfeng@loongson.cn>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
next reply other threads:[~2026-01-22 7:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-01-22 7:31 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2023-12-09 19:17 drivers/gpu/drm/loongson/lsdc_benchmark.c:27:35: sparse: sparse: incorrect type in argument 1 (different address spaces) kernel test robot
2023-11-15 18:03 kernel test robot
2023-11-14 23:35 kernel test robot
2023-11-15 7:57 ` kernel test robot
2023-11-08 23:14 kernel test robot
2023-11-07 12:36 kernel test robot
2023-11-03 3:55 kernel test robot
2023-11-02 16:06 kernel test robot
2023-09-09 20:17 kernel test robot
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