From nobody Wed Dec 17 09:42:53 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 CE240C25B67 for ; Thu, 26 Oct 2023 12:28:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344911AbjJZM2p (ORCPT ); Thu, 26 Oct 2023 08:28:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42526 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229647AbjJZM2o (ORCPT ); Thu, 26 Oct 2023 08:28:44 -0400 Received: from mail-qk1-x733.google.com (mail-qk1-x733.google.com [IPv6:2607:f8b0:4864:20::733]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C99AC111 for ; Thu, 26 Oct 2023 05:28:41 -0700 (PDT) Received: by mail-qk1-x733.google.com with SMTP id af79cd13be357-778925998cbso67045985a.0 for ; Thu, 26 Oct 2023 05:28:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1698323321; x=1698928121; 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=1WGRGpf1ARbPQY1fumL5DeKAJhYKCHf4gxWwDp4LFCQ=; b=dnKI+KRYtDpu0CiG0JK1pul4NU9Hct+sFwSQOppcwiuo8mtHcmyexNE62F4XUS6IPD g1YscC/b6pe9EAhaoZGXT6l9HHlQNzZ8w36M+vDezM3QHk2MHFxgv1cH8CcmlC3Q9cJY /qd79aJ3ykA0+83zUYpG3QUwRwtwOnB5h+CbA= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698323321; x=1698928121; 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=1WGRGpf1ARbPQY1fumL5DeKAJhYKCHf4gxWwDp4LFCQ=; b=RJp2DJK+vctUjdAdFniSBkG6VM4eTXjOx8YgeVPgaNp3S/+zUPCJbxQqjfyVG8ZUgv IIPYCX8+ZCyMqpjU6iKVekQ3oKXb4FIo7nXzA6ElruHS8VPrImScNdcAuOLKgINIzc/f 2frpvzPWo+NFA7MwIOBNF7oLOYloMXBOJI2+P675d94UXz3XZK/JQ7SKhYNSI2fzrDoO WNbBgD875B1kttSJmYB27P0HkRMILNhQBnDS4O7eTHYtVzCUXo8mllDMaR+QUFtCwds/ pBNWOxtgmfyhBS42zlgQvQsFtuH2i8fu6M5RnTXkfxUM+aP2wJ4Lc2oTwhT4ufkSLv2z W6iA== X-Gm-Message-State: AOJu0YxCi6iDlGIeZLrBeMBLRyM8FT7xkn95PDq0eFU9uhT6S4DODrFz 5WCApmoV+JNx4jgyEFhaphDWg9dCYy0T5U0K81Y= X-Google-Smtp-Source: AGHT+IGbmmi/fPDM4l/eOyFgg7t4XG2htGE2skFiTTZytx2fRoIZQX1f5cqp42EdqvLnV4afw+cnOw== X-Received: by 2002:a05:620a:22a2:b0:770:72c3:dbbc with SMTP id p2-20020a05620a22a200b0077072c3dbbcmr16056365qkh.18.1698323320869; Thu, 26 Oct 2023 05:28:40 -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 x6-20020a05620a14a600b0076f35d17d06sm4941476qkj.69.2023.10.26.05.28.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 26 Oct 2023 05:28:40 -0700 (PDT) From: Ricardo Ribalda Date: Thu, 26 Oct 2023 12:28:36 +0000 Subject: [PATCH] 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-v1-1-643c74771599@chromium.org> X-B4-Tracking: v=1; b=H4sIAHRbOmUC/x2MSQqAMAwAvyI5W9BWFPyKeEhjqgGp0uIC4t8NH mcY5oHMSThDXzyQ+JQsW1SoywJowTizkUkZbGVdXdnWTBc5E5C6JpB33iJo6jGz8QkjLRrHY11 V7omD3P97GN/3A0wzq51rAAAA To: Zubin Mithra , Thinh Nguyen , Greg Kroah-Hartman Cc: linux-usb@vger.kernel.org, linux-kernel@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] 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 --- 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