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Fri, 20 Sep 2019 15:26:30 -0700 (PDT) Received: from [192.168.2.145] ([94.29.45.178]) by smtp.googlemail.com with ESMTPSA id z30sm806218lfj.63.2019.09.20.15.26.29 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 20 Sep 2019 15:26:29 -0700 (PDT) Subject: Re: [PATCH] media: staging: tegra-vde: Fix build error To: Arnd Bergmann References: <20190725024129.22664-1-yuehaibing@huawei.com> From: Dmitry Osipenko Message-ID: Date: Sat, 21 Sep 2019 01:26:28 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: Content-Language: en-US Cc: driverdevel , gregkh , YueHaibing , "linux-kernel@vger.kernel.org" , Jonathan Hunter , "open list:IOMMU DRIVERS" , Thierry Reding , "open list:TEGRA ARCHITECTURE SUPPORT" , Mauro Carvalho Chehab , Robin Murphy , Linux Media Mailing List 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="utf-8" Content-Transfer-Encoding: base64 Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org MjAuMDkuMjAxOSAyMjozMiwgQXJuZCBCZXJnbWFubiDQv9C40YjQtdGCOgo+IE9uIFRodSwgSnVs IDI1LCAyMDE5IGF0IDI6MjQgUE0gRG1pdHJ5IE9zaXBlbmtvIDxkaWdldHhAZ21haWwuY29tPiB3 cm90ZToKPj4KPj4gMjUuMDcuMjAxOSA1OjQxLCBZdWVIYWliaW5nINC/0LjRiNC10YI6Cj4+PiBJ ZiBJT01NVV9TVVBQT1JUIGlzIG5vdCBzZXQsIGFuZCBDT01QSUxFX1RFU1QgaXMgeSwKPj4+IElP TU1VX0lPVkEgbWF5IGJlIHNldCB0byBtLiBTbyBidWlsZGluZyB3aWxsIGZhaWxzOgo+Pj4KPj4+ IGRyaXZlcnMvc3RhZ2luZy9tZWRpYS90ZWdyYS12ZGUvaW9tbXUubzogSW4gZnVuY3Rpb24gYHRl Z3JhX3ZkZV9pb21tdV9tYXAnOgo+Pj4gaW9tbXUuYzooLnRleHQrMHg0MSk6IHVuZGVmaW5lZCBy ZWZlcmVuY2UgdG8gYGFsbG9jX2lvdmEnCj4+PiBpb21tdS5jOigudGV4dCsweDU2KTogdW5kZWZp bmVkIHJlZmVyZW5jZSB0byBgX19mcmVlX2lvdmEnCj4+Pgo+Pj4gU2VsZWN0IElPTU1VX0lPVkEg d2hpbGUgQ09NUElMRV9URVNUIGlzIHNldCB0byBmaXggdGhpcy4KPiAKPj4+IEBAIC0zLDcgKzMs NyBAQCBjb25maWcgVEVHUkFfVkRFCj4+PiAgICAgICB0cmlzdGF0ZSAiTlZJRElBIFRlZ3JhIFZp ZGVvIERlY29kZXIgRW5naW5lIGRyaXZlciIKPj4+ICAgICAgIGRlcGVuZHMgb24gQVJDSF9URUdS QSB8fCBDT01QSUxFX1RFU1QKPj4+ICAgICAgIHNlbGVjdCBETUFfU0hBUkVEX0JVRkZFUgo+Pj4g LSAgICAgc2VsZWN0IElPTU1VX0lPVkEgaWYgSU9NTVVfU1VQUE9SVAo+Pj4gKyAgICAgc2VsZWN0 IElPTU1VX0lPVkEgaWYgKElPTU1VX1NVUFBPUlQgfHwgQ09NUElMRV9URVNUKQo+Pj4gICAgICAg c2VsZWN0IFNSQU0KPj4+ICAgICAgIGhlbHAKPj4+ICAgICAgICAgICBTYXkgWSBoZXJlIHRvIGVu YWJsZSBzdXBwb3J0IGZvciB0aGUgTlZJRElBIFRlZ3JhIHZpZGVvIGRlY29kZXIKPj4+Cj4+Cj4+ IFRoaXMgcmVzdWx0cyBpbiBtaXNzaW5nIHRoZSBjYXNlIG9mIGNvbXBpbGUtdGVzdGluZyAhSU9N TVVfSU9WQSBmb3IgdGhlCj4+IGRyaXZlciwgYnV0IHByb2JhYmx5IHRoYXQncyBub3QgYSBiaWcg ZGVhbC4KPj4KPj4gQWNrZWQtYnk6IERtaXRyeSBPc2lwZW5rbyA8ZGlnZXR4QGdtYWlsLmNvbT4K PiAKPiBJIGRvbid0IGtub3cgd2hhdCBoYXBwZW5lZCBoZXJlLCBidXQgdGhlIHBhdGNoIGZyb20g WXVlSGFpYmluZyBjYXVzZWQgdGhpcwo+IGVycm9yIGZvciBtZSwgd2hpY2ggaXMgdmVyeSBtdWNo IGxpa2UgdGhlIHByb2JsZW0gaXQgd2FzIG1lYW50IHRvIGZpeDoKPiAKPiBkcml2ZXJzL2dwdS9o b3N0MXgvZGV2Lm86IEluIGZ1bmN0aW9uIGBob3N0MXhfcHJvYmUnOgo+IGRldi5jOigudGV4dCsw eDE3MzQpOiB1bmRlZmluZWQgcmVmZXJlbmNlIHRvIGBwdXRfaW92YV9kb21haW4nCj4gZGV2LmM6 KC50ZXh0KzB4MTc0NCk6IHVuZGVmaW5lZCByZWZlcmVuY2UgdG8gYGlvdmFfY2FjaGVfcHV0Jwo+ IGRyaXZlcnMvZ3B1L2hvc3QxeC9kZXYubzogSW4gZnVuY3Rpb24gYGhvc3QxeF9yZW1vdmUnOgo+ IGRldi5jOigudGV4dCsweDE4OTQpOiB1bmRlZmluZWQgcmVmZXJlbmNlIHRvIGBwdXRfaW92YV9k b21haW4nCj4gZGV2LmM6KC50ZXh0KzB4MTg5OCk6IHVuZGVmaW5lZCByZWZlcmVuY2UgdG8gYGlv dmFfY2FjaGVfcHV0Jwo+IGRyaXZlcnMvZ3B1L2hvc3QxeC9jZG1hLm86IEluIGZ1bmN0aW9uIGBo b3N0MXhfY2RtYV9pbml0JzoKPiBjZG1hLmM6KC50ZXh0KzB4NWQwKTogdW5kZWZpbmVkIHJlZmVy ZW5jZSB0byBgYWxsb2NfaW92YScKPiBjZG1hLmM6KC50ZXh0KzB4NjFjKTogdW5kZWZpbmVkIHJl ZmVyZW5jZSB0byBgX19mcmVlX2lvdmEnCj4gZHJpdmVycy9ncHUvaG9zdDF4L2NkbWEubzogSW4g ZnVuY3Rpb24gYGhvc3QxeF9jZG1hX2RlaW5pdCc6Cj4gY2RtYS5jOigudGV4dCsweDZjOCk6IHVu ZGVmaW5lZCByZWZlcmVuY2UgdG8gYGZyZWVfaW92YScKPiBkcml2ZXJzL2dwdS9ob3N0MXgvam9i Lm86IEluIGZ1bmN0aW9uIGBob3N0MXhfam9iX3Bpbic6Cj4gam9iLmM6KC50ZXh0KzB4NTE0KTog dW5kZWZpbmVkIHJlZmVyZW5jZSB0byBgYWxsb2NfaW92YScKPiBqb2IuYzooLnRleHQrMHg1Mjgp OiB1bmRlZmluZWQgcmVmZXJlbmNlIHRvIGBfX2ZyZWVfaW92YScKPiBkcml2ZXJzL2dwdS9ob3N0 MXgvam9iLm86IEluIGZ1bmN0aW9uIGBob3N0MXhfam9iX3VucGluJzoKPiBqb2IuYzooLnRleHQr MHg1YmMpOiB1bmRlZmluZWQgcmVmZXJlbmNlIHRvIGBmcmVlX2lvdmEnCj4gCj4gQWZ0ZXIgcmV2 ZXJ0aGluZyBjb21taXQgNmIyMjY1OTc1MjM5ICgibWVkaWE6IHN0YWdpbmc6Cj4gdGVncmEtdmRl OiBGaXggYnVpbGQgZXJyb3IiKSwgSSBjYW4gbm8gbG9uZ2VyIHJlcHJvZHVjZSB0aGUKPiBpc3N1 ZS4KClRoZXJlIGlzIGEgZm9sbG93IHVwIGhlcmU6IGh0dHBzOi8vcGF0Y2h3b3JrLm96bGFicy5v cmcvcGF0Y2gvMTE1MzE3Ni8KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KaW9tbXUgbWFpbGluZyBsaXN0CmlvbW11QGxpc3RzLmxpbnV4LWZvdW5kYXRpb24u b3JnCmh0dHBzOi8vbGlzdHMubGludXhmb3VuZGF0aW9uLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2lv bW11 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dmitry Osipenko Subject: Re: [PATCH] media: staging: tegra-vde: Fix build error Date: Sat, 21 Sep 2019 01:26:28 +0300 Message-ID: References: <20190725024129.22664-1-yuehaibing@huawei.com> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: Content-Language: en-US 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: Arnd Bergmann Cc: driverdevel , gregkh , YueHaibing , "linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , Jonathan Hunter , "open list:IOMMU DRIVERS" , Thierry Reding , "open list:TEGRA ARCHITECTURE SUPPORT" , Mauro Carvalho Chehab , Robin Murphy , Linux Media Mailing List List-Id: linux-tegra@vger.kernel.org MjAuMDkuMjAxOSAyMjozMiwgQXJuZCBCZXJnbWFubiDQv9C40YjQtdGCOgo+IE9uIFRodSwgSnVs IDI1LCAyMDE5IGF0IDI6MjQgUE0gRG1pdHJ5IE9zaXBlbmtvIDxkaWdldHhAZ21haWwuY29tPiB3 cm90ZToKPj4KPj4gMjUuMDcuMjAxOSA1OjQxLCBZdWVIYWliaW5nINC/0LjRiNC10YI6Cj4+PiBJ ZiBJT01NVV9TVVBQT1JUIGlzIG5vdCBzZXQsIGFuZCBDT01QSUxFX1RFU1QgaXMgeSwKPj4+IElP TU1VX0lPVkEgbWF5IGJlIHNldCB0byBtLiBTbyBidWlsZGluZyB3aWxsIGZhaWxzOgo+Pj4KPj4+ IGRyaXZlcnMvc3RhZ2luZy9tZWRpYS90ZWdyYS12ZGUvaW9tbXUubzogSW4gZnVuY3Rpb24gYHRl Z3JhX3ZkZV9pb21tdV9tYXAnOgo+Pj4gaW9tbXUuYzooLnRleHQrMHg0MSk6IHVuZGVmaW5lZCBy ZWZlcmVuY2UgdG8gYGFsbG9jX2lvdmEnCj4+PiBpb21tdS5jOigudGV4dCsweDU2KTogdW5kZWZp bmVkIHJlZmVyZW5jZSB0byBgX19mcmVlX2lvdmEnCj4+Pgo+Pj4gU2VsZWN0IElPTU1VX0lPVkEg d2hpbGUgQ09NUElMRV9URVNUIGlzIHNldCB0byBmaXggdGhpcy4KPiAKPj4+IEBAIC0zLDcgKzMs NyBAQCBjb25maWcgVEVHUkFfVkRFCj4+PiAgICAgICB0cmlzdGF0ZSAiTlZJRElBIFRlZ3JhIFZp ZGVvIERlY29kZXIgRW5naW5lIGRyaXZlciIKPj4+ICAgICAgIGRlcGVuZHMgb24gQVJDSF9URUdS QSB8fCBDT01QSUxFX1RFU1QKPj4+ICAgICAgIHNlbGVjdCBETUFfU0hBUkVEX0JVRkZFUgo+Pj4g LSAgICAgc2VsZWN0IElPTU1VX0lPVkEgaWYgSU9NTVVfU1VQUE9SVAo+Pj4gKyAgICAgc2VsZWN0 IElPTU1VX0lPVkEgaWYgKElPTU1VX1NVUFBPUlQgfHwgQ09NUElMRV9URVNUKQo+Pj4gICAgICAg c2VsZWN0IFNSQU0KPj4+ICAgICAgIGhlbHAKPj4+ICAgICAgICAgICBTYXkgWSBoZXJlIHRvIGVu YWJsZSBzdXBwb3J0IGZvciB0aGUgTlZJRElBIFRlZ3JhIHZpZGVvIGRlY29kZXIKPj4+Cj4+Cj4+ IFRoaXMgcmVzdWx0cyBpbiBtaXNzaW5nIHRoZSBjYXNlIG9mIGNvbXBpbGUtdGVzdGluZyAhSU9N TVVfSU9WQSBmb3IgdGhlCj4+IGRyaXZlciwgYnV0IHByb2JhYmx5IHRoYXQncyBub3QgYSBiaWcg ZGVhbC4KPj4KPj4gQWNrZWQtYnk6IERtaXRyeSBPc2lwZW5rbyA8ZGlnZXR4QGdtYWlsLmNvbT4K PiAKPiBJIGRvbid0IGtub3cgd2hhdCBoYXBwZW5lZCBoZXJlLCBidXQgdGhlIHBhdGNoIGZyb20g WXVlSGFpYmluZyBjYXVzZWQgdGhpcwo+IGVycm9yIGZvciBtZSwgd2hpY2ggaXMgdmVyeSBtdWNo IGxpa2UgdGhlIHByb2JsZW0gaXQgd2FzIG1lYW50IHRvIGZpeDoKPiAKPiBkcml2ZXJzL2dwdS9o b3N0MXgvZGV2Lm86IEluIGZ1bmN0aW9uIGBob3N0MXhfcHJvYmUnOgo+IGRldi5jOigudGV4dCsw eDE3MzQpOiB1bmRlZmluZWQgcmVmZXJlbmNlIHRvIGBwdXRfaW92YV9kb21haW4nCj4gZGV2LmM6 KC50ZXh0KzB4MTc0NCk6IHVuZGVmaW5lZCByZWZlcmVuY2UgdG8gYGlvdmFfY2FjaGVfcHV0Jwo+ IGRyaXZlcnMvZ3B1L2hvc3QxeC9kZXYubzogSW4gZnVuY3Rpb24gYGhvc3QxeF9yZW1vdmUnOgo+ IGRldi5jOigudGV4dCsweDE4OTQpOiB1bmRlZmluZWQgcmVmZXJlbmNlIHRvIGBwdXRfaW92YV9k b21haW4nCj4gZGV2LmM6KC50ZXh0KzB4MTg5OCk6IHVuZGVmaW5lZCByZWZlcmVuY2UgdG8gYGlv dmFfY2FjaGVfcHV0Jwo+IGRyaXZlcnMvZ3B1L2hvc3QxeC9jZG1hLm86IEluIGZ1bmN0aW9uIGBo b3N0MXhfY2RtYV9pbml0JzoKPiBjZG1hLmM6KC50ZXh0KzB4NWQwKTogdW5kZWZpbmVkIHJlZmVy ZW5jZSB0byBgYWxsb2NfaW92YScKPiBjZG1hLmM6KC50ZXh0KzB4NjFjKTogdW5kZWZpbmVkIHJl ZmVyZW5jZSB0byBgX19mcmVlX2lvdmEnCj4gZHJpdmVycy9ncHUvaG9zdDF4L2NkbWEubzogSW4g ZnVuY3Rpb24gYGhvc3QxeF9jZG1hX2RlaW5pdCc6Cj4gY2RtYS5jOigudGV4dCsweDZjOCk6IHVu ZGVmaW5lZCByZWZlcmVuY2UgdG8gYGZyZWVfaW92YScKPiBkcml2ZXJzL2dwdS9ob3N0MXgvam9i Lm86IEluIGZ1bmN0aW9uIGBob3N0MXhfam9iX3Bpbic6Cj4gam9iLmM6KC50ZXh0KzB4NTE0KTog dW5kZWZpbmVkIHJlZmVyZW5jZSB0byBgYWxsb2NfaW92YScKPiBqb2IuYzooLnRleHQrMHg1Mjgp OiB1bmRlZmluZWQgcmVmZXJlbmNlIHRvIGBfX2ZyZWVfaW92YScKPiBkcml2ZXJzL2dwdS9ob3N0 MXgvam9iLm86IEluIGZ1bmN0aW9uIGBob3N0MXhfam9iX3VucGluJzoKPiBqb2IuYzooLnRleHQr MHg1YmMpOiB1bmRlZmluZWQgcmVmZXJlbmNlIHRvIGBmcmVlX2lvdmEnCj4gCj4gQWZ0ZXIgcmV2 ZXJ0aGluZyBjb21taXQgNmIyMjY1OTc1MjM5ICgibWVkaWE6IHN0YWdpbmc6Cj4gdGVncmEtdmRl OiBGaXggYnVpbGQgZXJyb3IiKSwgSSBjYW4gbm8gbG9uZ2VyIHJlcHJvZHVjZSB0aGUKPiBpc3N1 ZS4KClRoZXJlIGlzIGEgZm9sbG93IHVwIGhlcmU6IGh0dHBzOi8vcGF0Y2h3b3JrLm96bGFicy5v cmcvcGF0Y2gvMTE1MzE3Ni8KX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KaW9tbXUgbWFpbGluZyBsaXN0CmlvbW11QGxpc3RzLmxpbnV4LWZvdW5kYXRpb24u b3JnCmh0dHBzOi8vbGlzdHMubGludXhmb3VuZGF0aW9uLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2lv bW11 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3CE07C4CEC9 for ; 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Fri, 20 Sep 2019 15:26:30 -0700 (PDT) Received: from [192.168.2.145] ([94.29.45.178]) by smtp.googlemail.com with ESMTPSA id z30sm806218lfj.63.2019.09.20.15.26.29 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 20 Sep 2019 15:26:29 -0700 (PDT) Subject: Re: [PATCH] media: staging: tegra-vde: Fix build error To: Arnd Bergmann Cc: YueHaibing , Mauro Carvalho Chehab , gregkh , Thierry Reding , Jonathan Hunter , Robin Murphy , Sakari Ailus , "linux-kernel@vger.kernel.org" , driverdevel , Linux Media Mailing List , "open list:TEGRA ARCHITECTURE SUPPORT" , "open list:IOMMU DRIVERS" References: <20190725024129.22664-1-yuehaibing@huawei.com> From: Dmitry Osipenko Message-ID: Date: Sat, 21 Sep 2019 01:26:28 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-media-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org 20.09.2019 22:32, Arnd Bergmann пишет: > On Thu, Jul 25, 2019 at 2:24 PM Dmitry Osipenko wrote: >> >> 25.07.2019 5:41, YueHaibing пишет: >>> If IOMMU_SUPPORT is not set, and COMPILE_TEST is y, >>> IOMMU_IOVA may be set to m. So building will fails: >>> >>> drivers/staging/media/tegra-vde/iommu.o: In function `tegra_vde_iommu_map': >>> iommu.c:(.text+0x41): undefined reference to `alloc_iova' >>> iommu.c:(.text+0x56): undefined reference to `__free_iova' >>> >>> Select IOMMU_IOVA while COMPILE_TEST is set to fix this. > >>> @@ -3,7 +3,7 @@ config TEGRA_VDE >>> tristate "NVIDIA Tegra Video Decoder Engine driver" >>> depends on ARCH_TEGRA || COMPILE_TEST >>> select DMA_SHARED_BUFFER >>> - select IOMMU_IOVA if IOMMU_SUPPORT >>> + select IOMMU_IOVA if (IOMMU_SUPPORT || COMPILE_TEST) >>> select SRAM >>> help >>> Say Y here to enable support for the NVIDIA Tegra video decoder >>> >> >> This results in missing the case of compile-testing !IOMMU_IOVA for the >> driver, but probably that's not a big deal. >> >> Acked-by: Dmitry Osipenko > > I don't know what happened here, but the patch from YueHaibing caused this > error for me, which is very much like the problem it was meant to fix: > > drivers/gpu/host1x/dev.o: In function `host1x_probe': > dev.c:(.text+0x1734): undefined reference to `put_iova_domain' > dev.c:(.text+0x1744): undefined reference to `iova_cache_put' > drivers/gpu/host1x/dev.o: In function `host1x_remove': > dev.c:(.text+0x1894): undefined reference to `put_iova_domain' > dev.c:(.text+0x1898): undefined reference to `iova_cache_put' > drivers/gpu/host1x/cdma.o: In function `host1x_cdma_init': > cdma.c:(.text+0x5d0): undefined reference to `alloc_iova' > cdma.c:(.text+0x61c): undefined reference to `__free_iova' > drivers/gpu/host1x/cdma.o: In function `host1x_cdma_deinit': > cdma.c:(.text+0x6c8): undefined reference to `free_iova' > drivers/gpu/host1x/job.o: In function `host1x_job_pin': > job.c:(.text+0x514): undefined reference to `alloc_iova' > job.c:(.text+0x528): undefined reference to `__free_iova' > drivers/gpu/host1x/job.o: In function `host1x_job_unpin': > job.c:(.text+0x5bc): undefined reference to `free_iova' > > After reverthing commit 6b2265975239 ("media: staging: > tegra-vde: Fix build error"), I can no longer reproduce the > issue. There is a follow up here: https://patchwork.ozlabs.org/patch/1153176/