From nobody Sun Feb 8 18:49:47 2026 Received: from mail-pf1-f173.google.com (mail-pf1-f173.google.com [209.85.210.173]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8E52FA31 for ; Tue, 8 Apr 2025 01:32:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.173 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744075956; cv=none; b=c1KduCg+EfrqiThnndnVi7799zugCc2AEwbgKt5/eU2AH9dBS1sW+pGYS4AIQ7qVp7gRUaYAso8wj2sV3EK64XtHIdVEhBMcySdMRHMDVOgzwgNcVK8fmvCPwodYf6htxH7Kr3U3DGoEsw/HN2FxCaywmaaNL8mHzdUHvaPptns= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744075956; c=relaxed/simple; bh=xcmuPfOAt5cfMjB/ZFaWH0LcgbNGB8QfJVxHea3Rfro=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=FqKSWjwVa/GEPZPR3XiRoxDtOxnnhhq1PgMqmPTLyF1Q8NwdiBc/sFl6lBx3xm5B84Be/fz5ckGExGzZkIX8eAWHNA+AhSuwuUALDGT97j83O+Eq9HecW+tvsZ/iYP9vpc05GIHUn/39AMAC8NefqxfTR2kkByTbiVQRycoU4fo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn; spf=pass smtp.mailfrom=gmail.com; arc=none smtp.client-ip=209.85.210.173 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kylinos.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-pf1-f173.google.com with SMTP id d2e1a72fcca58-736ab1c43c4so4769337b3a.1 for ; Mon, 07 Apr 2025 18:32:30 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1744075950; x=1744680750; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=IT6EO3uXq7W/DtEevmI6X3jGcRw4tHqVpMI32qli+6k=; b=k4RGcn7sDHJSGfYFFwaTMzkn9fElsTTnEIBu13YkVaA0aMKZIXiYpK0GWuo7ktBaG9 E5SoTYiYZ1+HrH/UJpwB/LTqpHi0m4Rq/N3eLkQHCwv2cs3UnEsGtqivR7vEla2BtXwB 4gWYgolP//5Y+GkyFsu3JMsg1MTUR3X70xR1iGvl28YU98HYZztqAZ0217GB4TIizAbg MtLifkWCWxonN9RbJIvTOzLNHtfaJ07o2Sd/QFlEmteClwByzRDGvUskVrqXJukGaGoF xCE1x4N661lrBZWl5GhbRknV/aE05H+mt7RxzmdAz/P55T5vBHkDDKJn+PE0XZlED2y3 R16g== X-Forwarded-Encrypted: i=1; AJvYcCVzZBdBxiQaDfpYv90bEfpww3koRuMiMwcQaEseI8K2NAw2so0YVPkvf9+raes/1Oub2bBvwacvfxxrka0=@vger.kernel.org X-Gm-Message-State: AOJu0YyI20ojtZvm42xscRwVKQvqryfFGTcQo01/aBDbDftsgl7ZCxDi Ffy3la+0QlFEQfAOBYTUi0eq3XNx83cBrDMUL+g9FtXXjNeAl3HD X-Gm-Gg: ASbGncs7N29w2jPJHADOwEuJynqQKiHToRW3XmVV5OSRIihghOKwrBuQGVaoK06ZLAS PfclgSPI6MTNqeHmqUCuaT+basFYNkiHXtMjriWEQsLR+sG4wxWQlIKWjCE9Cs1fwnFUXfldKaK qFAdf0gNtotJPICs+fMUUpSt57Qq6LBfRU/CjOjZVOFyYdisKu0tR3dgFEX4wDsOzCPNR/A/z4Z ut+rbkv0onBVI/dce7EOIXWSNqmHRvCWzSwwvgpardRTp56LdTPWkN9u8nNuKpLA4plmBs1yTb/ POja1h1wMoBxIHaOzPjW2bRTM4drRYdZ9w5IUhouY+mUMBdnC7U5gWi4x3o/ X-Google-Smtp-Source: AGHT+IEzl0nskbxsR96eaqQW/1gJQJ8+1JpvRWHmYANqFKElkG6cxZpJBqxLTJ5cU0yAVVNeQ20Pfw== X-Received: by 2002:a05:6a00:2186:b0:736:5545:5b84 with SMTP id d2e1a72fcca58-739e48cefd7mr22131846b3a.3.1744075949719; Mon, 07 Apr 2025 18:32:29 -0700 (PDT) Received: from localhost.localdomain ([116.128.244.169]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-739d9ea089csm9243885b3a.111.2025.04.07.18.32.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 07 Apr 2025 18:32:29 -0700 (PDT) From: jiangfeng@kylinos.cn To: maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, airlied@gmail.com, simona@ffwll.ch, rodrigo.vivi@intel.com, andrealmeid@igalia.com, christian.koenig@amd.com, raag.jadav@intel.com Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Feng Jiang Subject: [PATCH] drm: Fix the length of event_string in drm_dev_wedged_event() Date: Tue, 8 Apr 2025 09:32:19 +0800 Message-Id: <20250408013219.26006-1-jiangfeng@kylinos.cn> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" From: Feng Jiang The format of the event_string value is `WEDGED=3D[,..,]`, so method should be appended after 'WEDGED=3D' rather than overwriting it. Fixes: b7cf9f4ac1b8 ("drm: Introduce device wedged event") Signed-off-by: Feng Jiang --- drivers/gpu/drm/drm_drv.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c index 17fc5dc708f4..58babdab9e66 100644 --- a/drivers/gpu/drm/drm_drv.c +++ b/drivers/gpu/drm/drm_drv.c @@ -549,7 +549,8 @@ int drm_dev_wedged_event(struct drm_device *dev, unsign= ed long method) if (drm_WARN_ONCE(dev, !recovery, "invalid recovery method %u\n", opt)) break; =20 - len +=3D scnprintf(event_string + len, sizeof(event_string), "%s,", reco= very); + len +=3D scnprintf(event_string + len, + sizeof(event_string) - len, "%s,", recovery); } =20 if (recovery) --=20 2.25.1