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Message-ID: <202512131636.FoMf8ZrT-lkp@intel.com>
Date: Sat, 13 Dec 2025 16:17:48 +0800
From: kernel test robot <lkp@...el.com>
To: Tiwei Bie <tiwei.btw@...group.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
Johannes Berg <johannes.berg@...el.com>
Subject: drivers/dma/pch_dma.c:872:34: sparse: sparse: incorrect type in
assignment (different address spaces)
Hi Tiwei,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: a859eca0e4cc96f63ff125dbe5388d961558b0e9
commit: a0e2cb6a90634f3dc80f16e882a683ee5761b0b0 um: Add VFIO-based virtual PCI driver
date: 7 months ago
config: um-randconfig-r121-20251213 (https://download.01.org/0day-ci/archive/20251213/202512131636.FoMf8ZrT-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/20251213/202512131636.FoMf8ZrT-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/oe-kbuild-all/202512131636.FoMf8ZrT-lkp@intel.com/
sparse warnings: (new ones prefixed by >>)
drivers/dma/pch_dma.c:839:14: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct pch_dma_regs *regs @@ got void [noderef] __iomem *membase @@
drivers/dma/pch_dma.c:839:14: sparse: expected struct pch_dma_regs *regs
drivers/dma/pch_dma.c:839:14: sparse: got void [noderef] __iomem *membase
>> drivers/dma/pch_dma.c:872:34: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __iomem *membase @@ got struct pch_dma_desc_regs * @@
drivers/dma/pch_dma.c:872:34: sparse: expected void [noderef] __iomem *membase
drivers/dma/pch_dma.c:872:34: sparse: got struct pch_dma_desc_regs *
--
drivers/dma/hisi_dma.c:744:21: sparse: sparse: cast to restricted __le16
>> drivers/dma/hisi_dma.c:744:21: sparse: sparse: restricted __le16 degrades to integer
>> drivers/dma/hisi_dma.c:744:21: sparse: sparse: restricted __le16 degrades to integer
--
>> drivers/iommu/exynos-iommu.c:887:14: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] @@ got restricted __le32 [usertype] @@
drivers/iommu/exynos-iommu.c:887:14: sparse: expected unsigned int [usertype]
drivers/iommu/exynos-iommu.c:887:14: sparse: got restricted __le32 [usertype]
>> drivers/iommu/exynos-iommu.c:887:14: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] @@ got restricted __le32 [usertype] @@
drivers/iommu/exynos-iommu.c:887:14: sparse: expected unsigned int [usertype]
drivers/iommu/exynos-iommu.c:887:14: sparse: got restricted __le32 [usertype]
>> drivers/iommu/exynos-iommu.c:887:14: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] @@ got restricted __le32 [usertype] @@
drivers/iommu/exynos-iommu.c:887:14: sparse: expected unsigned int [usertype]
drivers/iommu/exynos-iommu.c:887:14: sparse: got restricted __le32 [usertype]
>> drivers/iommu/exynos-iommu.c:887:14: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] @@ got restricted __le32 [usertype] @@
drivers/iommu/exynos-iommu.c:887:14: sparse: expected unsigned int [usertype]
drivers/iommu/exynos-iommu.c:887:14: sparse: got restricted __le32 [usertype]
>> drivers/iommu/exynos-iommu.c:887:14: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned int [usertype] @@ got restricted __le32 [usertype] @@
drivers/iommu/exynos-iommu.c:887:14: sparse: expected unsigned int [usertype]
drivers/iommu/exynos-iommu.c:887:14: sparse: got restricted __le32 [usertype]
--
>> drivers/watchdog/at91rm9200_wdt.c:217:27: sparse: sparse: incorrect type in initializer (incompatible argument 2 (different address spaces)) @@ expected long ( *write )( ... ) @@ got long ( * )( ... ) @@
drivers/watchdog/at91rm9200_wdt.c:217:27: sparse: expected long ( *write )( ... )
drivers/watchdog/at91rm9200_wdt.c:217:27: sparse: got long ( * )( ... )
drivers/watchdog/at91rm9200_wdt.c: note: in included file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h, ...):
arch/um/include/asm/uaccess.h:45:18: sparse: sparse: unsigned value that used to be signed checked against zero?
drivers/watchdog/at91rm9200_wdt.c:162:25: sparse: signed value source
arch/um/include/asm/uaccess.h:45:18: sparse: sparse: unsigned value that used to be signed checked against zero?
drivers/watchdog/at91rm9200_wdt.c:162:25: sparse: signed value source
arch/um/include/asm/uaccess.h:45:18: sparse: sparse: unsigned value that used to be signed checked against zero?
drivers/watchdog/at91rm9200_wdt.c:162:25: sparse: signed value source
arch/um/include/asm/uaccess.h:45:18: sparse: sparse: unsigned value that used to be signed checked against zero?
drivers/watchdog/at91rm9200_wdt.c:162:25: sparse: signed value source
arch/um/include/asm/uaccess.h:45:18: sparse: sparse: unsigned value that used to be signed checked against zero?
drivers/watchdog/at91rm9200_wdt.c:162:25: sparse: signed value source
--
drivers/gpu/drm/xe/xe_oa.c:2370:25: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned long long [usertype] *ptr @@ got void [noderef] __user * @@
drivers/gpu/drm/xe/xe_oa.c:2370:25: sparse: expected unsigned long long [usertype] *ptr
drivers/gpu/drm/xe/xe_oa.c:2370:25: sparse: got void [noderef] __user *
>> drivers/gpu/drm/xe/xe_oa.c:2383:15: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void const [noderef] __user *__p @@ got unsigned long long [usertype] *ptr @@
drivers/gpu/drm/xe/xe_oa.c:2383:15: sparse: expected void const [noderef] __user *__p
drivers/gpu/drm/xe/xe_oa.c:2383:15: sparse: got unsigned long long [usertype] *ptr
drivers/gpu/drm/xe/xe_oa.c: note: in included file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h, ...):
arch/um/include/asm/uaccess.h:45:18: sparse: sparse: unsigned value that used to be signed checked against zero?
drivers/gpu/drm/xe/xe_oa.c:325:24: sparse: signed value source
arch/um/include/asm/uaccess.h:45:18: sparse: sparse: unsigned value that used to be signed checked against zero?
drivers/gpu/drm/xe/xe_oa.c: note: in included file (through include/linux/string.h, include/linux/bitmap.h, include/linux/cpumask.h, ...):
include/linux/err.h:41:25: sparse: signed value source
drivers/gpu/drm/xe/xe_oa.c: note: in included file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h, ...):
arch/um/include/asm/uaccess.h:45:18: sparse: sparse: unsigned value that used to be signed checked against zero?
drivers/gpu/drm/xe/xe_oa.c:2208:23: sparse: signed value source
arch/um/include/asm/uaccess.h:45:18: sparse: sparse: unsigned value that used to be signed checked against zero?
drivers/gpu/drm/xe/xe_oa.c:2370:25: sparse: signed value source
--
>> drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c:97:22: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem *map @@
drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c:97:22: sparse: expected void *
drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c:97:22: sparse: got void [noderef] __iomem *map
drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c:155:21: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __iomem *map @@ got void * @@
drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c:155:21: sparse: expected void [noderef] __iomem *map
drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c:155:21: sparse: got void *
drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c:157:33: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c:157:30: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __iomem *map @@ got unsigned char [usertype] * @@
drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c:157:30: sparse: expected void [noderef] __iomem *map
drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c:157:30: sparse: got unsigned char [usertype] *
drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c:162:22: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected void * @@ got void [noderef] __iomem *map @@
drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c:162:22: sparse: expected void *
drivers/gpu/drm/nouveau/nvkm/core/gpuobj.c:162:22: sparse: got void [noderef] __iomem *map
--
drivers/gpu/drm/nouveau/nouveau_gem.c: note: in included file (through drivers/gpu/drm/nouveau/nouveau_drv.h):
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:9:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:10:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:11:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:12:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:13:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:14:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:17:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:18:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:20:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:21:1: sparse: sparse: directive in macro's argument list
>> drivers/gpu/drm/nouveau/nouveau_gem.c:881:25: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nouveau_gem.c:882:25: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nouveau_gem.c:914:25: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nouveau_gem.c:915:25: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nouveau_gem.c:917:33: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nouveau_gem.c: note: in included file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h, ...):
arch/um/include/asm/uaccess.h:45:18: sparse: sparse: unsigned value that used to be signed checked against zero?
drivers/gpu/drm/nouveau/nouveau_gem.c:947:48: sparse: signed value source
--
drivers/gpu/drm/nouveau/dispnv50/corec37d.c: note: in included file (through drivers/gpu/drm/nouveau/nouveau_drv.h, drivers/gpu/drm/nouveau/nouveau_display.h, ...):
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:9:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:10:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:11:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:12:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:13:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:14:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:17:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:18:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:20:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:21:1: sparse: sparse: directive in macro's argument list
>> drivers/gpu/drm/nouveau/dispnv50/corec37d.c:44:17: sparse: sparse: cast removes address space '__iomem' of expression
>> drivers/gpu/drm/nouveau/dispnv50/corec37d.c:44:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:61:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:61:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:67:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:67:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:67:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:69:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:69:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:74:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:74:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:137:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:137:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:140:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:140:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:140:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:149:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/corec37d.c:149:17: sparse: sparse: cast removes address space '__iomem' of expression
--
drivers/gpu/drm/nouveau/dispnv50/headc57d.c: note: in included file (through drivers/gpu/drm/nouveau/nouveau_drv.h, drivers/gpu/drm/nouveau/nouveau_display.h, ...):
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:9:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:10:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:11:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:12:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:13:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:14:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:17:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:18:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:20:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:21:1: sparse: sparse: directive in macro's argument list
>> drivers/gpu/drm/nouveau/dispnv50/headc57d.c:39:9: sparse: sparse: cast removes address space '__iomem' of expression
>> drivers/gpu/drm/nouveau/dispnv50/headc57d.c:39:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:68:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:68:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:89:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:89:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:106:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:106:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:120:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:120:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:120:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:120:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:120:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:212:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:212:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:212:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:212:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:212:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:229:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:229:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:230:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:230:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:232:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:232:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:235:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:235:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:239:9: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/dispnv50/headc57d.c:239:9: sparse: sparse: cast removes address space '__iomem' of expression
--
drivers/gpu/drm/nouveau/nv84_fence.c: note: in included file (through drivers/gpu/drm/nouveau/nouveau_drv.h):
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:9:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:10:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:11:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:12:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:13:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:14:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:17:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:18:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:20:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/include/nvif/ioctl.h:21:1: sparse: sparse: directive in macro's argument list
drivers/gpu/drm/nouveau/nv84_fence.c:41:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nv84_fence.c:41:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nv84_fence.c:43:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nv84_fence.c:43:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nv84_fence.c:43:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nv84_fence.c:43:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nv84_fence.c:43:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nv84_fence.c:43:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nv84_fence.c:64:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nv84_fence.c:64:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nv84_fence.c:66:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nv84_fence.c:66:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nv84_fence.c:66:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nv84_fence.c:66:17: sparse: sparse: cast removes address space '__iomem' of expression
drivers/gpu/drm/nouveau/nv84_fence.c:66:17: sparse: sparse: cast removes address space '__iomem' of expression
>> drivers/gpu/drm/nouveau/nv84_fence.c:88:45: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected struct nouveau_channel *chan @@ got struct nouveau_channel [noderef] __rcu *channel @@
drivers/gpu/drm/nouveau/nv84_fence.c:88:45: sparse: expected struct nouveau_channel *chan
drivers/gpu/drm/nouveau/nv84_fence.c:88:45: sparse: got struct nouveau_channel [noderef] __rcu *channel
--
>> 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
--
>> drivers/gpu/drm/loongson/lsdc_drv.c:235:28: sparse: sparse: incorrect type in return expression (different address spaces) @@ expected struct lsdc_device * @@ got void [noderef] __iomem *reg_base @@
drivers/gpu/drm/loongson/lsdc_drv.c:235:28: sparse: expected struct lsdc_device *
drivers/gpu/drm/loongson/lsdc_drv.c:235:28: sparse: got void [noderef] __iomem *reg_base
vim +872 drivers/dma/pch_dma.c
0c42bd0e425e9c Yong Wang 2010-07-30 798
463a1f8b3ceebe Bill Pemberton 2012-11-19 799 static int pch_dma_probe(struct pci_dev *pdev,
0c42bd0e425e9c Yong Wang 2010-07-30 800 const struct pci_device_id *id)
0c42bd0e425e9c Yong Wang 2010-07-30 801 {
0c42bd0e425e9c Yong Wang 2010-07-30 802 struct pch_dma *pd;
0c42bd0e425e9c Yong Wang 2010-07-30 803 struct pch_dma_regs *regs;
0c42bd0e425e9c Yong Wang 2010-07-30 804 unsigned int nr_channels;
0c42bd0e425e9c Yong Wang 2010-07-30 805 int err;
0c42bd0e425e9c Yong Wang 2010-07-30 806 int i;
0c42bd0e425e9c Yong Wang 2010-07-30 807
0c42bd0e425e9c Yong Wang 2010-07-30 808 nr_channels = id->driver_data;
01631243d712d4 Tomoya MORINAGA 2011-10-12 809 pd = kzalloc(sizeof(*pd), GFP_KERNEL);
0c42bd0e425e9c Yong Wang 2010-07-30 810 if (!pd)
0c42bd0e425e9c Yong Wang 2010-07-30 811 return -ENOMEM;
0c42bd0e425e9c Yong Wang 2010-07-30 812
0c42bd0e425e9c Yong Wang 2010-07-30 813 pci_set_drvdata(pdev, pd);
0c42bd0e425e9c Yong Wang 2010-07-30 814
0c42bd0e425e9c Yong Wang 2010-07-30 815 err = pci_enable_device(pdev);
0c42bd0e425e9c Yong Wang 2010-07-30 816 if (err) {
0c42bd0e425e9c Yong Wang 2010-07-30 817 dev_err(&pdev->dev, "Cannot enable PCI device\n");
0c42bd0e425e9c Yong Wang 2010-07-30 818 goto err_free_mem;
0c42bd0e425e9c Yong Wang 2010-07-30 819 }
0c42bd0e425e9c Yong Wang 2010-07-30 820
0c42bd0e425e9c Yong Wang 2010-07-30 821 if (!(pci_resource_flags(pdev, 1) & IORESOURCE_MEM)) {
0c42bd0e425e9c Yong Wang 2010-07-30 822 dev_err(&pdev->dev, "Cannot find proper base address\n");
27abb2ffb07a70 Wei Yongjun 2013-07-17 823 err = -ENODEV;
0c42bd0e425e9c Yong Wang 2010-07-30 824 goto err_disable_pdev;
0c42bd0e425e9c Yong Wang 2010-07-30 825 }
0c42bd0e425e9c Yong Wang 2010-07-30 826
0c42bd0e425e9c Yong Wang 2010-07-30 827 err = pci_request_regions(pdev, DRV_NAME);
0c42bd0e425e9c Yong Wang 2010-07-30 828 if (err) {
0c42bd0e425e9c Yong Wang 2010-07-30 829 dev_err(&pdev->dev, "Cannot obtain PCI resources\n");
0c42bd0e425e9c Yong Wang 2010-07-30 830 goto err_disable_pdev;
0c42bd0e425e9c Yong Wang 2010-07-30 831 }
0c42bd0e425e9c Yong Wang 2010-07-30 832
64aa8f4b6df107 Christophe JAILLET 2022-01-06 833 err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
0c42bd0e425e9c Yong Wang 2010-07-30 834 if (err) {
0c42bd0e425e9c Yong Wang 2010-07-30 835 dev_err(&pdev->dev, "Cannot set proper DMA config\n");
0c42bd0e425e9c Yong Wang 2010-07-30 836 goto err_free_res;
0c42bd0e425e9c Yong Wang 2010-07-30 837 }
0c42bd0e425e9c Yong Wang 2010-07-30 838
0c42bd0e425e9c Yong Wang 2010-07-30 839 regs = pd->membase = pci_iomap(pdev, 1, 0);
0c42bd0e425e9c Yong Wang 2010-07-30 840 if (!pd->membase) {
0c42bd0e425e9c Yong Wang 2010-07-30 841 dev_err(&pdev->dev, "Cannot map MMIO registers\n");
0c42bd0e425e9c Yong Wang 2010-07-30 842 err = -ENOMEM;
0c42bd0e425e9c Yong Wang 2010-07-30 843 goto err_free_res;
0c42bd0e425e9c Yong Wang 2010-07-30 844 }
0c42bd0e425e9c Yong Wang 2010-07-30 845
0c42bd0e425e9c Yong Wang 2010-07-30 846 pci_set_master(pdev);
2e45676a4d33af Madhuparna Bhowmik 2020-04-16 847 pd->dma.dev = &pdev->dev;
0c42bd0e425e9c Yong Wang 2010-07-30 848
0c42bd0e425e9c Yong Wang 2010-07-30 849 err = request_irq(pdev->irq, pd_irq, IRQF_SHARED, DRV_NAME, pd);
0c42bd0e425e9c Yong Wang 2010-07-30 850 if (err) {
0c42bd0e425e9c Yong Wang 2010-07-30 851 dev_err(&pdev->dev, "Failed to request IRQ\n");
0c42bd0e425e9c Yong Wang 2010-07-30 852 goto err_iounmap;
0c42bd0e425e9c Yong Wang 2010-07-30 853 }
0c42bd0e425e9c Yong Wang 2010-07-30 854
10c191a11c79bb Romain Perier 2017-10-23 855 pd->pool = dma_pool_create("pch_dma_desc_pool", &pdev->dev,
0c42bd0e425e9c Yong Wang 2010-07-30 856 sizeof(struct pch_dma_desc), 4, 0);
0c42bd0e425e9c Yong Wang 2010-07-30 857 if (!pd->pool) {
0c42bd0e425e9c Yong Wang 2010-07-30 858 dev_err(&pdev->dev, "Failed to alloc DMA descriptors\n");
0c42bd0e425e9c Yong Wang 2010-07-30 859 err = -ENOMEM;
0c42bd0e425e9c Yong Wang 2010-07-30 860 goto err_free_irq;
0c42bd0e425e9c Yong Wang 2010-07-30 861 }
0c42bd0e425e9c Yong Wang 2010-07-30 862
0c42bd0e425e9c Yong Wang 2010-07-30 863
0c42bd0e425e9c Yong Wang 2010-07-30 864 INIT_LIST_HEAD(&pd->dma.channels);
0c42bd0e425e9c Yong Wang 2010-07-30 865
0c42bd0e425e9c Yong Wang 2010-07-30 866 for (i = 0; i < nr_channels; i++) {
0c42bd0e425e9c Yong Wang 2010-07-30 867 struct pch_dma_chan *pd_chan = &pd->channels[i];
0c42bd0e425e9c Yong Wang 2010-07-30 868
0c42bd0e425e9c Yong Wang 2010-07-30 869 pd_chan->chan.device = &pd->dma;
d3ee98cdcd6198 Russell King - ARM Linux 2012-03-06 870 dma_cookie_init(&pd_chan->chan);
0c42bd0e425e9c Yong Wang 2010-07-30 871
0c42bd0e425e9c Yong Wang 2010-07-30 @872 pd_chan->membase = ®s->desc[i];
0c42bd0e425e9c Yong Wang 2010-07-30 873
0c42bd0e425e9c Yong Wang 2010-07-30 874 spin_lock_init(&pd_chan->lock);
0c42bd0e425e9c Yong Wang 2010-07-30 875
0c42bd0e425e9c Yong Wang 2010-07-30 876 INIT_LIST_HEAD(&pd_chan->active_list);
0c42bd0e425e9c Yong Wang 2010-07-30 877 INIT_LIST_HEAD(&pd_chan->queue);
0c42bd0e425e9c Yong Wang 2010-07-30 878 INIT_LIST_HEAD(&pd_chan->free_list);
0c42bd0e425e9c Yong Wang 2010-07-30 879
88ff5093ca30b7 Allen Pais 2020-08-31 880 tasklet_setup(&pd_chan->tasklet, pdc_tasklet);
0c42bd0e425e9c Yong Wang 2010-07-30 881 list_add_tail(&pd_chan->chan.device_node, &pd->dma.channels);
0c42bd0e425e9c Yong Wang 2010-07-30 882 }
0c42bd0e425e9c Yong Wang 2010-07-30 883
0c42bd0e425e9c Yong Wang 2010-07-30 884 dma_cap_zero(pd->dma.cap_mask);
0c42bd0e425e9c Yong Wang 2010-07-30 885 dma_cap_set(DMA_PRIVATE, pd->dma.cap_mask);
0c42bd0e425e9c Yong Wang 2010-07-30 886 dma_cap_set(DMA_SLAVE, pd->dma.cap_mask);
0c42bd0e425e9c Yong Wang 2010-07-30 887
0c42bd0e425e9c Yong Wang 2010-07-30 888 pd->dma.device_alloc_chan_resources = pd_alloc_chan_resources;
0c42bd0e425e9c Yong Wang 2010-07-30 889 pd->dma.device_free_chan_resources = pd_free_chan_resources;
0c42bd0e425e9c Yong Wang 2010-07-30 890 pd->dma.device_tx_status = pd_tx_status;
0c42bd0e425e9c Yong Wang 2010-07-30 891 pd->dma.device_issue_pending = pd_issue_pending;
0c42bd0e425e9c Yong Wang 2010-07-30 892 pd->dma.device_prep_slave_sg = pd_prep_slave_sg;
c91781b44e2bf4 Maxime Ripard 2014-11-17 893 pd->dma.device_terminate_all = pd_device_terminate_all;
0c42bd0e425e9c Yong Wang 2010-07-30 894
0c42bd0e425e9c Yong Wang 2010-07-30 895 err = dma_async_device_register(&pd->dma);
0c42bd0e425e9c Yong Wang 2010-07-30 896 if (err) {
0c42bd0e425e9c Yong Wang 2010-07-30 897 dev_err(&pdev->dev, "Failed to register DMA device\n");
0c42bd0e425e9c Yong Wang 2010-07-30 898 goto err_free_pool;
0c42bd0e425e9c Yong Wang 2010-07-30 899 }
0c42bd0e425e9c Yong Wang 2010-07-30 900
0c42bd0e425e9c Yong Wang 2010-07-30 901 return 0;
0c42bd0e425e9c Yong Wang 2010-07-30 902
0c42bd0e425e9c Yong Wang 2010-07-30 903 err_free_pool:
10c191a11c79bb Romain Perier 2017-10-23 904 dma_pool_destroy(pd->pool);
0c42bd0e425e9c Yong Wang 2010-07-30 905 err_free_irq:
0c42bd0e425e9c Yong Wang 2010-07-30 906 free_irq(pdev->irq, pd);
0c42bd0e425e9c Yong Wang 2010-07-30 907 err_iounmap:
0c42bd0e425e9c Yong Wang 2010-07-30 908 pci_iounmap(pdev, pd->membase);
0c42bd0e425e9c Yong Wang 2010-07-30 909 err_free_res:
0c42bd0e425e9c Yong Wang 2010-07-30 910 pci_release_regions(pdev);
0c42bd0e425e9c Yong Wang 2010-07-30 911 err_disable_pdev:
0c42bd0e425e9c Yong Wang 2010-07-30 912 pci_disable_device(pdev);
0c42bd0e425e9c Yong Wang 2010-07-30 913 err_free_mem:
12d7b7a23694b4 Alexey Khoroshilov 2015-04-11 914 kfree(pd);
0c42bd0e425e9c Yong Wang 2010-07-30 915 return err;
0c42bd0e425e9c Yong Wang 2010-07-30 916 }
0c42bd0e425e9c Yong Wang 2010-07-30 917
:::::: The code at line 872 was first introduced by commit
:::::: 0c42bd0e425e9c8ddb7019fc446f7d915e36c5f6 dmaengine: Driver for Topcliff PCH DMA controller
:::::: TO: Yong Wang <yong.y.wang@...ux.intel.com>
:::::: CC: Dan Williams <dan.j.williams@...el.com>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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