From mboxrd@z Thu Jan 1 00:00:00 1970 From: Baoquan He Subject: [PATCH 1/2] iommu/vt-d: break the for loop if an empty ir_ioapic entry found Date: Tue, 29 Sep 2015 15:26:08 +0800 Message-ID: <1443511569-9187-1-git-send-email-bhe@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: joro-zLv9SwRftAIdnm+yROfE0A@public.gmane.org Cc: iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: iommu@lists.linux-foundation.org No need to continue the loop after it has been found. Signed-off-by: Baoquan He --- drivers/iommu/intel_irq_remapping.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c index 9ec4e0d..37b93f5 100644 --- a/drivers/iommu/intel_irq_remapping.c +++ b/drivers/iommu/intel_irq_remapping.c @@ -841,8 +841,10 @@ static int ir_parse_one_ioapic_scope(struct acpi_dmar_device_scope *scope, if (ir_ioapic[count].iommu == iommu && ir_ioapic[count].id == scope->enumeration_id) return 0; - else if (ir_ioapic[count].iommu == NULL && free == -1) + else if (ir_ioapic[count].iommu == NULL && free == -1) { free = count; + break; + } } if (free == -1) { pr_warn("Exceeded Max IO APICS\n"); -- 2.1.0