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RDMA/usnic: Refactor usnic_uiom_alloc_pd()
Rather than hard-coding pci_bus_type, pass the PF device through to usnic_uiom_alloc_pd() and retrieve its bus there. This prepares for iommu_domain_alloc() changing to take a device rather than a bus_type. Link: https://lore.kernel.org/r/ef607cb3f5a09920b86971b8c8e60af8c647457e.1649169359.git.robin.murphy@arm.com Signed-off-by: Robin Murphy <robin.murphy@arm.com> Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
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3 changed files with 4 additions and 6 deletions
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@ -443,7 +443,7 @@ int usnic_ib_alloc_pd(struct ib_pd *ibpd, struct ib_udata *udata)
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{
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struct usnic_ib_pd *pd = to_upd(ibpd);
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pd->umem_pd = usnic_uiom_alloc_pd();
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pd->umem_pd = usnic_uiom_alloc_pd(ibpd->device->dev.parent);
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if (IS_ERR(pd->umem_pd))
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return PTR_ERR(pd->umem_pd);
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@ -707,4 +707,3 @@ int usnic_ib_mmap(struct ib_ucontext *context,
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usnic_err("No VF %u found\n", vfid);
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return -EINVAL;
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}
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@ -40,7 +40,6 @@
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#include <linux/iommu.h>
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#include <linux/workqueue.h>
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#include <linux/list.h>
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#include <linux/pci.h>
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#include <rdma/ib_verbs.h>
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#include "usnic_log.h"
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@ -439,7 +438,7 @@ void usnic_uiom_reg_release(struct usnic_uiom_reg *uiomr)
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__usnic_uiom_release_tail(uiomr);
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}
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struct usnic_uiom_pd *usnic_uiom_alloc_pd(void)
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struct usnic_uiom_pd *usnic_uiom_alloc_pd(struct device *dev)
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{
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struct usnic_uiom_pd *pd;
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void *domain;
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@ -448,7 +447,7 @@ struct usnic_uiom_pd *usnic_uiom_alloc_pd(void)
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if (!pd)
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return ERR_PTR(-ENOMEM);
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pd->domain = domain = iommu_domain_alloc(&pci_bus_type);
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pd->domain = domain = iommu_domain_alloc(dev->bus);
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if (!domain) {
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usnic_err("Failed to allocate IOMMU domain");
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kfree(pd);
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@ -80,7 +80,7 @@ struct usnic_uiom_chunk {
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struct scatterlist page_list[];
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};
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struct usnic_uiom_pd *usnic_uiom_alloc_pd(void);
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struct usnic_uiom_pd *usnic_uiom_alloc_pd(struct device *dev);
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void usnic_uiom_dealloc_pd(struct usnic_uiom_pd *pd);
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int usnic_uiom_attach_dev_to_pd(struct usnic_uiom_pd *pd, struct device *dev);
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void usnic_uiom_detach_dev_from_pd(struct usnic_uiom_pd *pd,
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