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| author | Ingo Molnar <mingo@kernel.org> | 2019-06-24 19:19:53 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-06-24 19:19:53 +0200 |
| commit | d2abae71ebcc409828b24ce9da402548ecdf1311 (patch) | |
| tree | 5edfafc2828d3bcebb3698520ccba374cd4328c0 /drivers/pci/p2pdma.c | |
| parent | 66567fcbaecac455caa1b13643155d686b51ce63 (diff) | |
| parent | 4b972a01a7da614b4796475f933094751a295a2f (diff) | |
Merge tag 'v5.2-rc6' into sched/core, to refresh the branch
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/pci/p2pdma.c')
| -rw-r--r-- | drivers/pci/p2pdma.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pci/p2pdma.c b/drivers/pci/p2pdma.c index a98126ad9c3a..a4994aa3acc0 100644 --- a/drivers/pci/p2pdma.c +++ b/drivers/pci/p2pdma.c @@ -18,6 +18,7 @@ #include <linux/percpu-refcount.h> #include <linux/random.h> #include <linux/seq_buf.h> +#include <linux/iommu.h> struct pci_p2pdma { struct gen_pool *pool; @@ -299,6 +300,9 @@ static bool root_complex_whitelist(struct pci_dev *dev) struct pci_dev *root = pci_get_slot(host->bus, PCI_DEVFN(0, 0)); unsigned short vendor, device; + if (iommu_present(dev->dev.bus)) + return false; + if (!root) return false; |