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authorJakub Kicinski <kuba@kernel.org>2025-03-06 13:01:27 -0800
committerJakub Kicinski <kuba@kernel.org>2025-03-06 13:03:35 -0800
commit2525e16a2bae322641fd745412f3524d4455d8df (patch)
treeb1b2646362b8cc89fe3cf4eece698810fbb05c55 /drivers/iommu/intel/iommu.c
parentf1078ab18818542a90e59be420448bd8034bc332 (diff)
parentf315296c92fd4b7716bdea17f727ab431891dc3b (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-6.14-rc6). Conflicts: net/ethtool/cabletest.c 2bcf4772e45a ("net: ethtool: try to protect all callback with netdev instance lock") 637399bf7e77 ("net: ethtool: netlink: Allow NULL nlattrs when getting a phy_device") No Adjacent changes. Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/iommu/intel/iommu.c')
-rw-r--r--drivers/iommu/intel/iommu.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index cc46098f875b..bf1f0c814348 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -3146,7 +3146,14 @@ int __init intel_iommu_init(void)
iommu_device_sysfs_add(&iommu->iommu, NULL,
intel_iommu_groups,
"%s", iommu->name);
+ /*
+ * The iommu device probe is protected by the iommu_probe_device_lock.
+ * Release the dmar_global_lock before entering the device probe path
+ * to avoid unnecessary lock order splat.
+ */
+ up_read(&dmar_global_lock);
iommu_device_register(&iommu->iommu, &intel_iommu_ops, NULL);
+ down_read(&dmar_global_lock);
iommu_pmu_register(iommu);
}
@@ -4378,9 +4385,6 @@ static int context_setup_pass_through_cb(struct pci_dev *pdev, u16 alias, void *
{
struct device *dev = data;
- if (dev != &pdev->dev)
- return 0;
-
return context_setup_pass_through(dev, PCI_BUS_NUM(alias), alias & 0xff);
}