Re: [PATCH] iommu: Fix incompatible arg type passed to iommu_get/put_resv_regions

From: kbuild test robot
Date: Sun May 07 2017 - 18:27:26 EST


Hi Manoj,

[auto build test ERROR on iommu/next]
[also build test ERROR on v4.11 next-20170505]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Manoj-Iyer/iommu-Fix-incompatible-arg-type-passed-to-iommu_get-put_resv_regions/20170507-153552
base: https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git next
config: x86_64-kexec (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=x86_64

All errors (new ones prefixed by >>):

drivers/iommu/iommu.c: In function 'iommu_get_group_resv_regions':
>> drivers/iommu/iommu.c:262:26: error: passing argument 1 of 'iommu_get_resv_regions' from incompatible pointer type [-Werror=incompatible-pointer-types]
iommu_get_resv_regions(&device->dev, &dev_resv_regions);
^
In file included from drivers/iommu/iommu.c:28:0:
include/linux/iommu.h:297:13: note: expected 'struct device *' but argument is of type 'struct device **'
extern void iommu_get_resv_regions(struct device *dev, struct list_head *list);
^~~~~~~~~~~~~~~~~~~~~~
>> drivers/iommu/iommu.c:264:26: error: passing argument 1 of 'iommu_put_resv_regions' from incompatible pointer type [-Werror=incompatible-pointer-types]
iommu_put_resv_regions(&device->dev, &dev_resv_regions);
^
In file included from drivers/iommu/iommu.c:28:0:
include/linux/iommu.h:298:13: note: expected 'struct device *' but argument is of type 'struct device **'
extern void iommu_put_resv_regions(struct device *dev, struct list_head *list);
^~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors

vim +/iommu_get_resv_regions +262 drivers/iommu/iommu.c

256
257 mutex_lock(&group->mutex);
258 list_for_each_entry(device, &group->devices, list) {
259 struct list_head dev_resv_regions;
260
261 INIT_LIST_HEAD(&dev_resv_regions);
> 262 iommu_get_resv_regions(&device->dev, &dev_resv_regions);
263 ret = iommu_insert_device_resv_regions(&dev_resv_regions, head);
> 264 iommu_put_resv_regions(&device->dev, &dev_resv_regions);
265 if (ret)
266 break;
267 }

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