From nobody Wed Dec 17 08:00:03 2025 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B6BC4C25B47 for ; Fri, 27 Oct 2023 11:28:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345756AbjJ0L21 (ORCPT ); Fri, 27 Oct 2023 07:28:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39984 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230101AbjJ0L2Z (ORCPT ); Fri, 27 Oct 2023 07:28:25 -0400 Received: from mail-qk1-x736.google.com (mail-qk1-x736.google.com [IPv6:2607:f8b0:4864:20::736]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B7B78187 for ; Fri, 27 Oct 2023 04:28:22 -0700 (PDT) Received: by mail-qk1-x736.google.com with SMTP id af79cd13be357-778a47bc09aso144900285a.3 for ; Fri, 27 Oct 2023 04:28:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1698406101; x=1699010901; darn=vger.kernel.org; h=cc:to:message-id:content-transfer-encoding:mime-version:subject :date:from:from:to:cc:subject:date:message-id:reply-to; bh=79aTCIrVJtcoBzwLf20/gJuTJbHzBwLsnf14+zcK3wI=; b=C4b4ed+EGP9C9xcof/uvOuZ+O3Y+c9SwoK6T8jilsL+F4Ne9TdGECiSWXJ/i3xG2m8 J1vVc8KeWsLRisePskrL6/pTqVHKtPAvMnD9b9deOyd8aCraZ7n82SwbmnKzSD1kgsGJ e+t0WW08VgKDszPxiwc7nY16ubH7XnaS2NEXg= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698406101; x=1699010901; h=cc:to:message-id:content-transfer-encoding:mime-version:subject :date:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=79aTCIrVJtcoBzwLf20/gJuTJbHzBwLsnf14+zcK3wI=; b=YxKubBsuFiEwWewwPVCSx4y87aaYCfnBu9Iu21o/3rRWTphd7lktEjiJl9rBxyT2aD DPvFrP4ENyFB3Eq7rs37sbR9zEmPM4teSMcqk/tDcoOnf1Y6ILIWddf4PTHWeh1mRjo2 LR0bACDoTDW/sFVIe5STegjjMG7Pbz/o0QW0HG/gj1nLbRLfn3fQPGrrU8s04HMorO4H HdplL8vqvv8e1jH6qzcwNqdfwe4eKK/r6zJSu5hwRX4rPYoDqkDy2UDzt1bjeDQIJVUR IWKxRPD/vzrmVS/Zkd320xb88xpHHwUpi1YOn6J7AVGgPKN80P3jpc1oJBP3ILe2vM5A 1eAQ== X-Gm-Message-State: AOJu0YxLml4CbOa01A9scXKJ+QYoyj6O2PJsKKCEdV6KWNdWNBxERCcc CNffmSY3YuUWbh3xc9+DCNvmeTKfzIX9IjAzcXfh5g== X-Google-Smtp-Source: AGHT+IEmv6H40NZs1aVjFDRquDxZP2HXDhl/PlbMGXt/MC9BV/jT5ljNQAAO8Z96v7EKG9tziH0rHw== X-Received: by 2002:a05:620a:3189:b0:76d:a110:856d with SMTP id bi9-20020a05620a318900b0076da110856dmr2437763qkb.0.1698406101594; Fri, 27 Oct 2023 04:28:21 -0700 (PDT) Received: from denia.c.googlers.com (112.49.199.35.bc.googleusercontent.com. [35.199.49.112]) by smtp.gmail.com with ESMTPSA id x19-20020ae9e913000000b007770d47c621sm450516qkf.66.2023.10.27.04.28.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Oct 2023 04:28:21 -0700 (PDT) From: Ricardo Ribalda Date: Fri, 27 Oct 2023 11:28:20 +0000 Subject: [PATCH v2] usb: dwc3: set the dma max_seg_size MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20231026-dwc3-v2-1-1d4fd5c3e067@chromium.org> X-B4-Tracking: v=1; b=H4sIANOeO2UC/12NQQ6CMBBFr0JmbQ1tEYIr72FYtKXQSaA1U0EN4 e6OLF2+l5/3N8ie0Ge4FhuQXzFjigzqVIALJo5eYM8MqlRalqoW/ctpMRjXVIOz2ioDPLUme2H JRBd4HJdpYvkgP+D7aN875oD5mehzXK3yZ/+qqxRS1JXmdtPIS9veXKA04zKfE43Q7fv+BaQiU NGwAAAA To: Zubin Mithra , Thinh Nguyen , Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Ricardo Ribalda X-Mailer: b4 0.12.2 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Allow devices to have dma operations beyond 4K, and avoid warnings such as: DMA-API: dwc3 a600000.usb: mapping sg segment longer than device claims to = support [len=3D86016] [max=3D65536] Cc: stable@vger.kernel.org Fixes: 72246da40f37 ("usb: Introduce DesignWare USB3 DRD Driver") Reported-by: Zubin Mithra Signed-off-by: Ricardo Ribalda --- Found while running=20 yavta -f YUYV -s 1280x720 -c /dev/video0 with: CONFIG_DMA_API_DEBUG=3Dy --- Changes in v2: - Add stable tag - Link to v1: https://lore.kernel.org/r/20231026-dwc3-v1-1-643c74771599@chr= omium.org --- drivers/usb/dwc3/core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 343d2570189f..65f73dd8ef47 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1918,6 +1918,8 @@ static int dwc3_probe(struct platform_device *pdev) =20 pm_runtime_put(dev); =20 + dma_set_max_seg_size(dev, UINT_MAX); + return 0; =20 err_exit_debugfs: --- base-commit: 611da07b89fdd53f140d7b33013f255bf0ed8f34 change-id: 20231026-dwc3-fac74fcb3b2a Best regards, --=20 Ricardo Ribalda