From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932547AbcGHLrS (ORCPT ); Fri, 8 Jul 2016 07:47:18 -0400 Received: from 8bytes.org ([81.169.241.247]:51728 "EHLO theia.8bytes.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754700AbcGHLpe (ORCPT ); Fri, 8 Jul 2016 07:45:34 -0400 From: Joerg Roedel To: iommu@lists.linux-foundation.org Cc: linux-kernel@vger.kernel.org, Suravee Suthikulpanit , Vincent.Wan@amd.com, Joerg Roedel Subject: [PATCH 12/20] iommu/amd: Allow NULL pointer parameter for domain_flush_complete() Date: Fri, 8 Jul 2016 13:45:03 +0200 Message-Id: <1467978311-28322-13-git-send-email-joro@8bytes.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1467978311-28322-1-git-send-email-joro@8bytes.org> References: <1467978311-28322-1-git-send-email-joro@8bytes.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Joerg Roedel If domain == NULL is passed to the function, it will queue a completion-wait command on all IOMMUs in the system. Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 4e27c57..7b8e1f8 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -1185,7 +1185,7 @@ static void domain_flush_complete(struct protection_domain *domain) int i; for (i = 0; i < amd_iommus_present; ++i) { - if (!domain->dev_iommu[i]) + if (domain && !domain->dev_iommu[i]) continue; /* -- 1.9.1