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Tue, 25 Jul 2023 18:50:44 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id bLOOLIQZwGQ9fgAAMHmgww (envelope-from ); Tue, 25 Jul 2023 18:50:44 +0000 Message-ID: <77a41226-b671-1895-6182-457f7fee9bda@suse.de> Date: Tue, 25 Jul 2023 20:50:43 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.13.0 Subject: Re: [PATCH] drm/shmem-helper: Reset vma->vm_ops before calling dma_buf_mmap() Content-Language: en-US To: Boris Brezillon , dri-devel@lists.freedesktop.org References: <20230724112610.60974-1-boris.brezillon@collabora.com> From: Thomas Zimmermann In-Reply-To: <20230724112610.60974-1-boris.brezillon@collabora.com> Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------2RAtmm0UdYst3US6QvqHJVbd" X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Daniel Vetter , Roman Stratiienko , stable@vger.kernel.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This is an OpenPGP/MIME signed message (RFC 4880 and 3156) --------------2RAtmm0UdYst3US6QvqHJVbd Content-Type: multipart/mixed; boundary="------------ivtOjhe6YB0FypaNcq46p9vk"; protected-headers="v1" From: Thomas Zimmermann To: Boris Brezillon , dri-devel@lists.freedesktop.org Cc: Daniel Vetter , stable@vger.kernel.org, Roman Stratiienko Message-ID: <77a41226-b671-1895-6182-457f7fee9bda@suse.de> Subject: Re: [PATCH] drm/shmem-helper: Reset vma->vm_ops before calling dma_buf_mmap() References: <20230724112610.60974-1-boris.brezillon@collabora.com> In-Reply-To: <20230724112610.60974-1-boris.brezillon@collabora.com> --------------ivtOjhe6YB0FypaNcq46p9vk Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: base64 SGkNCg0KQW0gMjQuMDcuMjMgdW0gMTM6MjYgc2NocmllYiBCb3JpcyBCcmV6aWxsb246DQo+ IFRoZSBkbWEtYnVmIGJhY2tlbmQgaXMgc3VwcG9zZWQgdG8gcHJvdmlkZSBpdHMgb3duIHZt X29wcywgYnV0IHNvbWUNCj4gaW1wbGVtZW50YXRpb24ganVzdCBoYXZlIG5vdGhpbmcgc3Bl Y2lhbCB0byBkbyBhbmQgbGVhdmUgdm1fb3BzDQo+IHVudG91Y2hlZCwgcHJvYmFibHkgZXhw ZWN0aW5nIHRoaXMgZmllbGQgdG8gYmUgemVybyBpbml0aWFsaXplZCAodGhpcw0KPiBpcyB0 aGUgY2FzZSB3aXRoIHRoZSBzeXN0ZW1faGVhcCBpbXBsZW1lbnRhdGlvbiBmb3IgaW5zdGFu Y2UpLg0KPiBMZXQncyByZXNldCB2bWEtPnZtX29wcyB0byBOVUxMIHRvIGtlZXAgdGhpbmdz IHdvcmtpbmcgd2l0aCB0aGVzZQ0KPiBpbXBsZW1lbnRhdGlvbnMuDQoNClRoYW5rcyBmb3Ig eW91ciBwYXRjaC4gVGhpcyBidWcgY291bGQgYWZmZWN0IGEgbnVtYmVyIG9mIEdFTSANCmlt cGxlbWVudGF0aW9ucy4gSW5zdGVhZCBvZiBmaXhpbmcgdGhpcyBpbmRpdmlkdWFsbHksIGNv dWxkIHdlIHNldCB0aGUgDQpmaWVsZHMgY29uZGl0aW9uYWxseSBhdA0KDQogDQpodHRwczov L2VsaXhpci5ib290bGluLmNvbS9saW51eC92Ni40L3NvdXJjZS9kcml2ZXJzL2dwdS9kcm0v ZHJtX2dlbS5jI0wxMDQyDQoNCj8NCg0KU29tZXRoaW5nIGxpa2UNCg0KICAgaWYgKCFvYmpl Y3QtPmltcG9ydF9hdHRhY2gpIHsNCiAgICAgdm1hLT5wcml2ID0NCiAgICAgdm1hLT5vcHMg PQ0KICAgfQ0KDQpwbHVzIGEgZGVzY3JpcHRpdmUgY29tbWVudCBsaWtlIHRoZSBvbmUgeW91 IGhhdmUgaW4geW91ciBwYXRjaC4NCg0KQmVzdCByZWdhcmRzDQpUaG9tYXMNCg0KPiANCj4g Rml4ZXM6IDI2ZDNhYzNjYjA0ZCAoImRybS9zaG1lbS1oZWxwZXJzOiBSZWRpcmVjdCBtbWFw IGZvciBpbXBvcnRlZCBkbWEtYnVmIikNCj4gQ2M6IDxzdGFibGVAdmdlci5rZXJuZWwub3Jn Pg0KPiBDYzogRGFuaWVsIFZldHRlciA8ZGFuaWVsLnZldHRlckBmZndsbC5jaD4NCj4gUmVw b3J0ZWQtYnk6IFJvbWFuIFN0cmF0aWllbmtvIDxyb21hbi5zdHJhdGlpZW5rb0BnbG9iYWxs b2dpYy5jb20+DQo+IFNpZ25lZC1vZmYtYnk6IEJvcmlzIEJyZXppbGxvbiA8Ym9yaXMuYnJl emlsbG9uQGNvbGxhYm9yYS5jb20+DQo+IC0tLQ0KPiAgIGRyaXZlcnMvZ3B1L2RybS9kcm1f Z2VtX3NobWVtX2hlbHBlci5jIHwgNiArKysrKysNCj4gICAxIGZpbGUgY2hhbmdlZCwgNiBp bnNlcnRpb25zKCspDQo+IA0KPiBkaWZmIC0tZ2l0IGEvZHJpdmVycy9ncHUvZHJtL2RybV9n ZW1fc2htZW1faGVscGVyLmMgYi9kcml2ZXJzL2dwdS9kcm0vZHJtX2dlbV9zaG1lbV9oZWxw ZXIuYw0KPiBpbmRleCA0ZWE2NTA3YTc3ZTUuLmJhYWYwZTBmZWIwNiAxMDA2NDQNCj4gLS0t IGEvZHJpdmVycy9ncHUvZHJtL2RybV9nZW1fc2htZW1faGVscGVyLmMNCj4gKysrIGIvZHJp dmVycy9ncHUvZHJtL2RybV9nZW1fc2htZW1faGVscGVyLmMNCj4gQEAgLTYyMyw3ICs2MjMs MTMgQEAgaW50IGRybV9nZW1fc2htZW1fbW1hcChzdHJ1Y3QgZHJtX2dlbV9zaG1lbV9vYmpl Y3QgKnNobWVtLCBzdHJ1Y3Qgdm1fYXJlYV9zdHJ1Y3QNCj4gICAJaW50IHJldDsNCj4gICAN Cj4gICAJaWYgKG9iai0+aW1wb3J0X2F0dGFjaCkgew0KPiArCQkvKiBSZXNldCBib3RoIHZt X29wcyBhbmQgdm1fcHJpdmF0ZV9kYXRhLCBzbyB3ZSBkb24ndCBlbmQgdXAgd2l0aA0KPiAr CQkgKiB2bV9vcHMgcG9pbnRpbmcgdG8gb3VyIGltcGxlbWVudGF0aW9uIGlmIHRoZSBkbWEt YnVmIGJhY2tlbmQNCj4gKwkJICogZG9lc24ndCBzZXQgdGhvc2UgZmllbGRzLg0KPiArCQkg Ki8NCj4gICAJCXZtYS0+dm1fcHJpdmF0ZV9kYXRhID0gTlVMTDsNCj4gKwkJdm1hLT52bV9v cHMgPSBOVUxMOw0KPiArDQo+ICAgCQlyZXQgPSBkbWFfYnVmX21tYXAob2JqLT5kbWFfYnVm LCB2bWEsIDApOw0KPiAgIA0KPiAgIAkJLyogRHJvcCB0aGUgcmVmZXJlbmNlIGRybV9nZW1f bW1hcF9vYmooKSBhY3F1aXJlZC4qLw0KDQotLSANClRob21hcyBaaW1tZXJtYW5uDQpHcmFw aGljcyBEcml2ZXIgRGV2ZWxvcGVyDQpTVVNFIFNvZnR3YXJlIFNvbHV0aW9ucyBHZXJtYW55 IEdtYkgNCkZyYW5rZW5zdHJhc3NlIDE0NiwgOTA0NjEgTnVlcm5iZXJnLCBHZXJtYW55DQpH RjogSXZvIFRvdGV2LCBBbmRyZXcgTXllcnMsIEFuZHJldyBNY0RvbmFsZCwgQm91ZGllbiBN b2VybWFuDQpIUkIgMzY4MDkgKEFHIE51ZXJuYmVyZykNCg== --------------ivtOjhe6YB0FypaNcq46p9vk-- --------------2RAtmm0UdYst3US6QvqHJVbd Content-Type: application/pgp-signature; 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