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| author | Robin Murphy <robin.murphy@arm.com> | 2022-04-05 13:19:59 +0100 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2022-04-08 14:12:12 -0300 |
| commit | d9539fb7c21ef5f47db0aeed0c32588479e32184 (patch) | |
| tree | c418608e3e7c035c1880bb33f15ad3ff45c447ca /drivers/infiniband/hw/usnic/usnic_uiom.c | |
| parent | 4302005f07d2607b1122bd2bc9226e9d1a0595ac (diff) | |
| download | linux-d9539fb7c21ef5f47db0aeed0c32588479e32184.tar.gz linux-d9539fb7c21ef5f47db0aeed0c32588479e32184.tar.bz2 linux-d9539fb7c21ef5f47db0aeed0c32588479e32184.zip | |
RDMA/usnic: Stop using iommu_present()
Even if an IOMMU might be present for some PCI segment in the system,
that doesn't necessarily mean it provides translation for the device(s)
we care about. Replace iommu_present() with a more appropriate check at
probe time, and garbage-collect the resulting empty init function.
Link: https://lore.kernel.org/r/f707b4248e1d33b6d2c7f1d7c94febb802cf9890.1649161199.git.robin.murphy@arm.com
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/hw/usnic/usnic_uiom.c')
| -rw-r--r-- | drivers/infiniband/hw/usnic/usnic_uiom.c | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/drivers/infiniband/hw/usnic/usnic_uiom.c b/drivers/infiniband/hw/usnic/usnic_uiom.c index 760b254ba42d..8c48027614a1 100644 --- a/drivers/infiniband/hw/usnic/usnic_uiom.c +++ b/drivers/infiniband/hw/usnic/usnic_uiom.c @@ -556,13 +556,3 @@ void usnic_uiom_free_dev_list(struct device **devs) { kfree(devs); } - -int usnic_uiom_init(char *drv_name) -{ - if (!iommu_present(&pci_bus_type)) { - usnic_err("IOMMU required but not present or enabled. USNIC QPs will not function w/o enabling IOMMU\n"); - return -EPERM; - } - - return 0; -} |