From 09284b9c4a80299b25b913c976dcaced09cc12f4 Mon Sep 17 00:00:00 2001 From: Baoquan He Date: Tue, 20 Sep 2016 09:05:34 +0800 Subject: [PATCH] iommu/amd: No need to wait iommu completion if no dte irq entry change This is a clean up. In get_irq_table() only if DTE entry is changed iommu_completion_wait() need be called. Otherwise no need to do it. Signed-off-by: Baoquan He Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index b5b117b44026..a2479d0df292 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -3634,7 +3634,7 @@ static struct irq_remap_table *get_irq_table(u16 devid, bool ioapic) table = irq_lookup_table[devid]; if (table) - goto out; + goto out_unlock; alias = amd_iommu_alias_table[devid]; table = irq_lookup_table[alias]; @@ -3648,7 +3648,7 @@ static struct irq_remap_table *get_irq_table(u16 devid, bool ioapic) /* Nothing there yet, allocate new irq remapping table */ table = kzalloc(sizeof(*table), GFP_ATOMIC); if (!table) - goto out; + goto out_unlock; /* Initialize table spin-lock */ spin_lock_init(&table->lock); @@ -3661,7 +3661,7 @@ static struct irq_remap_table *get_irq_table(u16 devid, bool ioapic) if (!table->table) { kfree(table); table = NULL; - goto out; + goto out_unlock; } if (!AMD_IOMMU_GUEST_IR_GA(amd_iommu_guest_ir)) -- GitLab