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[91.78.208.152]) by smtp.googlemail.com with ESMTPSA id v16sm2428150lfi.49.2020.05.14.13.07.11 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 14 May 2020 13:07:11 -0700 (PDT) Subject: Re: [PATCH v5 33/38] staging: tegra-vde: fix common struct sg_table related issues To: Marek Szyprowski , dri-devel@lists.freedesktop.org, iommu@lists.linux-foundation.org, linaro-mm-sig@lists.linaro.org, linux-kernel@vger.kernel.org References: <20200513132114.6046-1-m.szyprowski@samsung.com> <20200513133245.6408-1-m.szyprowski@samsung.com> <20200513133245.6408-33-m.szyprowski@samsung.com> From: Dmitry Osipenko Message-ID: <43f9f3cc-2afa-cec3-0dd4-335746ec886e@gmail.com> Date: Thu, 14 May 2020 23:07:10 +0300 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.7.0 MIME-Version: 1.0 In-Reply-To: <20200513133245.6408-33-m.szyprowski@samsung.com> Content-Language: en-US Cc: devel@driverdev.osuosl.org, Bartlomiej Zolnierkiewicz , David Airlie , Greg Kroah-Hartman , Jonathan Hunter , Thierry Reding , Daniel Vetter , linux-tegra@vger.kernel.org, Mauro Carvalho Chehab , Robin Murphy , Christoph Hellwig , linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 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 Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" MTMuMDUuMjAyMCAxNjozMiwgTWFyZWsgU3p5cHJvd3NraSDQv9C40YjQtdGCOgo+IFRoZSBEb2N1 bWVudGF0aW9uL0RNQS1BUEktSE9XVE8udHh0IHN0YXRlcyB0aGF0IHRoZSBkbWFfbWFwX3NnKCkg ZnVuY3Rpb24KPiByZXR1cm5zIHRoZSBudW1iZXIgb2YgdGhlIGNyZWF0ZWQgZW50cmllcyBpbiB0 aGUgRE1BIGFkZHJlc3Mgc3BhY2UuCj4gSG93ZXZlciB0aGUgc3Vic2VxdWVudCBjYWxscyB0byB0 aGUgZG1hX3N5bmNfc2dfZm9yX3tkZXZpY2UsY3B1fSgpIGFuZAo+IGRtYV91bm1hcF9zZyBtdXN0 IGJlIGNhbGxlZCB3aXRoIHRoZSBvcmlnaW5hbCBudW1iZXIgb2YgdGhlIGVudHJpZXMKPiBwYXNz ZWQgdG8gdGhlIGRtYV9tYXBfc2coKS4KPiAKPiBzdHJ1Y3Qgc2dfdGFibGUgaXMgYSBjb21tb24g c3RydWN0dXJlIHVzZWQgZm9yIGRlc2NyaWJpbmcgYSBub24tY29udGlndW91cwo+IG1lbW9yeSBi dWZmZXIsIHVzZWQgY29tbW9ubHkgaW4gdGhlIERSTSBhbmQgZ3JhcGhpY3Mgc3Vic3lzdGVtcy4g SXQKPiBjb25zaXN0cyBvZiBhIHNjYXR0ZXJsaXN0IHdpdGggbWVtb3J5IHBhZ2VzIGFuZCBETUEg YWRkcmVzc2VzIChzZ2wgZW50cnkpLAo+IGFzIHdlbGwgYXMgdGhlIG51bWJlciBvZiBzY2F0dGVy bGlzdCBlbnRyaWVzOiBDUFUgcGFnZXMgKG9yaWdfbmVudHMgZW50cnkpCj4gYW5kIERNQSBtYXBw ZWQgcGFnZXMgKG5lbnRzIGVudHJ5KS4KPiAKPiBJdCB0dXJuZWQgb3V0IHRoYXQgaXQgd2FzIGEg Y29tbW9uIG1pc3Rha2UgdG8gbWlzdXNlIG5lbnRzIGFuZCBvcmlnX25lbnRzCj4gZW50cmllcywg Y2FsbGluZyBETUEtbWFwcGluZyBmdW5jdGlvbnMgd2l0aCBhIHdyb25nIG51bWJlciBvZiBlbnRy aWVzIG9yCj4gaWdub3JpbmcgdGhlIG51bWJlciBvZiBtYXBwZWQgZW50cmllcyByZXR1cm5lZCBi eSB0aGUgZG1hX21hcF9zZygpCj4gZnVuY3Rpb24uCj4gCj4gVG8gYXZvaWQgc3VjaCBpc3N1ZXMs IGxldHMgdXNlIGEgY29tbW9uIGRtYS1tYXBwaW5nIHdyYXBwZXJzIG9wZXJhdGluZwo+IGRpcmVj dGx5IG9uIHRoZSBzdHJ1Y3Qgc2dfdGFibGUgb2JqZWN0cyBhbmQgdXNlIHNjYXR0ZXJsaXN0IHBh Z2UKPiBpdGVyYXRvcnMgd2hlcmUgcG9zc2libGUuIFRoaXMsIGFsbW9zdCBhbHdheXMsIGhpZGVz IHJlZmVyZW5jZXMgdG8gdGhlCj4gbmVudHMgYW5kIG9yaWdfbmVudHMgZW50cmllcywgbWFraW5n IHRoZSBjb2RlIHJvYnVzdCwgZWFzaWVyIHRvIGZvbGxvdwo+IGFuZCBjb3B5L3Bhc3RlIHNhZmUu Cj4gCj4gU2lnbmVkLW9mZi1ieTogTWFyZWsgU3p5cHJvd3NraSA8bS5zenlwcm93c2tpQHNhbXN1 bmcuY29tPgo+IC0tLQo+IEZvciBtb3JlIGluZm9ybWF0aW9uLCBzZWUgJ1tQQVRDSCB2NSAwMC8z OF0gRFJNOiBmaXggc3RydWN0IHNnX3RhYmxlIG5lbnRzCj4gdnMuIG9yaWdfbmVudHMgbWlzdXNl JyB0aHJlYWQ6Cj4gaHR0cHM6Ly9sb3JlLmtlcm5lbC5vcmcvbGludXgtaW9tbXUvMjAyMDA1MTMx MzIxMTQuNjA0Ni0xLW0uc3p5cHJvd3NraUBzYW1zdW5nLmNvbS9ULwo+IC0tLQo+ICBkcml2ZXJz L3N0YWdpbmcvbWVkaWEvdGVncmEtdmRlL2lvbW11LmMgfCA0ICsrLS0KPiAgMSBmaWxlIGNoYW5n ZWQsIDIgaW5zZXJ0aW9ucygrKSwgMiBkZWxldGlvbnMoLSkKPiAKPiBkaWZmIC0tZ2l0IGEvZHJp dmVycy9zdGFnaW5nL21lZGlhL3RlZ3JhLXZkZS9pb21tdS5jIGIvZHJpdmVycy9zdGFnaW5nL21l ZGlhL3RlZ3JhLXZkZS9pb21tdS5jCj4gaW5kZXggNmFmODYzZC4uYWRmOGRjNyAxMDA2NDQKPiAt LS0gYS9kcml2ZXJzL3N0YWdpbmcvbWVkaWEvdGVncmEtdmRlL2lvbW11LmMKPiArKysgYi9kcml2 ZXJzL3N0YWdpbmcvbWVkaWEvdGVncmEtdmRlL2lvbW11LmMKPiBAQCAtMzYsOCArMzYsOCBAQCBp bnQgdGVncmFfdmRlX2lvbW11X21hcChzdHJ1Y3QgdGVncmFfdmRlICp2ZGUsCj4gIAo+ICAJYWRk ciA9IGlvdmFfZG1hX2FkZHIoJnZkZS0+aW92YSwgaW92YSk7Cj4gIAo+IC0Jc2l6ZSA9IGlvbW11 X21hcF9zZyh2ZGUtPmRvbWFpbiwgYWRkciwgc2d0LT5zZ2wsIHNndC0+bmVudHMsCj4gLQkJCSAg ICBJT01NVV9SRUFEIHwgSU9NTVVfV1JJVEUpOwo+ICsJc2l6ZSA9IGlvbW11X21hcF9zZ3RhYmxl KHZkZS0+ZG9tYWluLCBhZGRyLCBzZ3QsCj4gKwkJCQkgSU9NTVVfUkVBRCB8IElPTU1VX1dSSVRF KTsKPiAgCWlmICghc2l6ZSkgewo+ICAJCV9fZnJlZV9pb3ZhKCZ2ZGUtPmlvdmEsIGlvdmEpOwo+ ICAJCXJldHVybiAtRU5YSU87Cj4gCgpSZXZpZXdlZC1ieTogRG1pdHJ5IE9zaXBlbmtvIDxkaWdl dHhAZ21haWwuY29tPgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fXwppb21tdSBtYWlsaW5nIGxpc3QKaW9tbXVAbGlzdHMubGludXgtZm91bmRhdGlvbi5vcmcK aHR0cHM6Ly9saXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlzdGluZm8vaW9tbXU=