lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
Open Source and information security mailing list archives
| ||
|
Date: Thu, 15 Sep 2016 16:50:53 +0800 From: Baoquan He <bhe@...hat.com> To: joro@...tes.org Cc: iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org, dyoung@...hat.com, xlpang@...hat.com, Vincent.Wan@....com, Baoquan He <bhe@...hat.com> Subject: [PATCH 4/4] 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 <bhe@...hat.com> --- 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 a9f78c2..461c2fe 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -3581,7 +3581,7 @@ 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]; @@ -3595,7 +3595,7 @@ 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); @@ -3608,7 +3608,7 @@ static struct irq_remap_table *get_irq_table(u16 devid, bool ioapic) if (!table->table) { kfree(table); table = NULL; - goto out; + goto out_unlock; } memset(table->table, 0, MAX_IRQS_PER_TABLE * sizeof(u32)); -- 2.5.5
Powered by blists - more mailing lists