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Wed, 19 Aug 2026 15:57:41 -0500 Received: from [172.19.71.207] (10.180.168.240) by satlexmb08.amd.com (10.181.42.217) with Microsoft SMTP Server id 15.2.2562.45 via Frontend Transport; Wed, 19 Aug 2026 15:57:40 -0500 Message-ID: <4d9ab5fc-deb5-b0f2-66d8-68d74902e64c@amd.com> Date: Wed, 19 Aug 2026 13:57:39 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.11.0 Subject: Re: [PATCH v4 3/5] accel/amdxdna: do not warn when a sync request is rejected Content-Language: en-US To: Taimuraz Kaitmazov , , CC: , , , , , , , , References: <20260817230707.356828-1-taimuraz@kaitmazov.com> <20260817230707.356828-4-taimuraz@kaitmazov.com> From: Lizhi Hou In-Reply-To: <20260817230707.356828-4-taimuraz@kaitmazov.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CO1PEPF00012E84:EE_|CY3PR12MB9605:EE_ X-MS-Office365-Filtering-Correlation-Id: c794eecd-1ccd-4919-786d-08defe3482d1 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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Ip=[165.204.84.17]; Helo=[satlexmb07.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF00012E84.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY3PR12MB9605 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On 8/17/26 16:07, Taimuraz Kaitmazov wrote: > amdxdna_drm_sync_bo_ioctl() answers a failed amdxdna_flush_bo() with > drm_WARN(). Both of that function's error returns are decided by the > ioctl's arguments, so SYNC_BO with an offset past the end of the BO > splats and taints the kernel from an unprivileged caller. > > Log it like the pin failure above it. > > Signed-off-by: Taimuraz Kaitmazov > --- > drivers/accel/amdxdna/amdxdna_gem.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/accel/amdxdna/amdxdna_gem.c b/drivers/accel/amdxdna/amdxdna_gem.c > index 77a9493cd7ba..4f38f985c74e 100644 > --- a/drivers/accel/amdxdna/amdxdna_gem.c > +++ b/drivers/accel/amdxdna/amdxdna_gem.c > @@ -1310,7 +1310,7 @@ int amdxdna_drm_sync_bo_ioctl(struct drm_device *dev, > amdxdna_gem_unpin(abo); > > if (ret) { > - drm_WARN(&xdna->ddev, 1, "Can not get flush memory"); > + XDNA_ERR(xdna, "Flush BO %d failed, ret %d", args->handle, ret); Should it be XDNA_DBG? Lizhi > goto put_obj; > } > }