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Thu, 18 Jul 2019 17:26:02 +0000 Received: from DM6PR12MB3163.namprd12.prod.outlook.com ([fe80::9c3d:8593:906c:e4f7]) by DM6PR12MB3163.namprd12.prod.outlook.com ([fe80::9c3d:8593:906c:e4f7%6]) with mapi id 15.20.2073.012; Thu, 18 Jul 2019 17:26:02 +0000 From: "Lendacky, Thomas" To: Thiago Jung Bauermann , "x86@kernel.org" Subject: Re: [PATCH v3 2/6] swiotlb: Remove call to sme_active() Thread-Topic: [PATCH v3 2/6] swiotlb: Remove call to sme_active() Thread-Index: AQHVPRkEwUtZWv2UAU29jYa98DzoIKbQoYiA Date: Thu, 18 Jul 2019 17:26:02 +0000 Message-ID: <7708048b-cc92-debc-54ba-6b3ad353c5bb@amd.com> References: <20190718032858.28744-1-bauerman@linux.ibm.com> <20190718032858.28744-3-bauerman@linux.ibm.com> In-Reply-To: <20190718032858.28744-3-bauerman@linux.ibm.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: SN4PR0601CA0015.namprd06.prod.outlook.com (2603:10b6:803:2f::25) To DM6PR12MB3163.namprd12.prod.outlook.com (2603:10b6:5:182::22) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Thomas.Lendacky@amd.com; 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DIR:OUT; SFP:1101; SCL:1; SRVR:DM6PR12MB3452; H:DM6PR12MB3163.namprd12.prod.outlook.com; FPR:; SPF:None; LANG:en; PTR:InfoNoRecords; A:1; MX:1; received-spf: None (protection.outlook.com: amd.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: 3AuUs6/FSKIZa7VmcvIO61u/oLDAtemCXC40CxRR4QY3IUtZEQ0ghcxMBnzXjApv1XCl23eR/oRhIPydtTsgDNroBxoZbqNEm0CmEAmDxraxHYq33k1758CSGC2b9BsVfNmGwvJ26xvBwhg+3Z2WfmxfZHwBNtXPRoSiPXZOhyLUZFoVtDqwkhS9re31cQKz8pu3Ch8FLiz9/9pMN7GM7RszX7lKofhcCsNxNLpTHqip+UKNjF7lgJnJgJx4AJk5fS28ypSnnawCES7ngxP7oeN+yw8Fwh6YrSHlbq5lU59z+EG8YPL2vdkyZFuJvYE+ior7Pd1gFIxvx5gnRKOPWvfV3P9dk7909E1SSoDLWN8Vb3CVwVkhgSRO1+Vyd4ykAf4f/WMKdztWOWAPKJ+SGJ/mw+X4u6wwgCzAbWNu6ps= Content-ID: MIME-Version: 1.0 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 0602e1f5-b632-4d76-031a-08d70ba50194 X-MS-Exchange-CrossTenant-originalarrivaltime: 18 Jul 2019 17:26:02.2579 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: tlendack@amd.com X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR12MB3452 Cc: "linux-s390@vger.kernel.org" , Konrad Rzeszutek Wilk , Robin Murphy , Mike Anderson , Ram Pai , "linux-kernel@vger.kernel.org" , Alexey Dobriyan , Halil Pasic , "iommu@lists.linux-foundation.org" , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" , "linux-fsdevel@vger.kernel.org" , Thomas Gleixner , "linuxppc-dev@lists.ozlabs.org" , Christoph Hellwig X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org On 7/17/19 10:28 PM, Thiago Jung Bauermann wrote: > sme_active() is an x86-specific function so it's better not to call it from > generic code. > > There's no need to mention which memory encryption feature is active, so > just use a more generic message. Besides, other architectures will have > different names for similar technology. > > Signed-off-by: Thiago Jung Bauermann Reviewed-by: Tom Lendacky > --- > kernel/dma/swiotlb.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) > > diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c > index 62fa5a82a065..e52401f94e91 100644 > --- a/kernel/dma/swiotlb.c > +++ b/kernel/dma/swiotlb.c > @@ -459,8 +459,7 @@ phys_addr_t swiotlb_tbl_map_single(struct device *hwdev, > panic("Can not allocate SWIOTLB buffer earlier and can't now provide you with the DMA bounce buffer"); > > if (mem_encrypt_active()) > - pr_warn_once("%s is active and system is using DMA bounce buffers\n", > - sme_active() ? "SME" : "SEV"); > + pr_warn_once("Memory encryption is active and system is using DMA bounce buffers\n"); > > mask = dma_get_seg_boundary(hwdev); > > _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu