From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f50.google.com (mail-ed1-f50.google.com [209.85.208.50]) (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 32788346E67 for ; Mon, 24 Aug 2026 07:47:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.50 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787557627; cv=none; b=MZ3GH/CLmR/ZsxQw/7BsDCQVusOR6Vvb6Scpm/R0JSDvbVBV8+iONdlT0t170w95sr3078frtDi2lT56+F5vs97JyHxg1Sr5UhqpBnarfpv3X+CEWefgaBQw0uG8HM28ioKfGyP9SEHhjIBbWorq9k7rDyDkT3Ztgkr6xcLqkUw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787557627; c=relaxed/simple; bh=o7Ey87ju4LDetm2YcfYnI4gNiACJzvnjsA0ht6b+JOY=; h=Message-ID:Date:MIME-Version:Subject:To:References:From: In-Reply-To:Content-Type; b=Ml3pYnBjzvAu/JfaQkMCwLmI0OQ9OKgA/B305nIvmPefLz8247rU7rnYnUSShgWql3LdRBerLi2rgdCimMOwc6a3UoVZuJbg4X6Y3iE/eKrH2vU5/+XzY9vB5eRXv5L3dn9ZkrFhT7KE10tuggr9mmzrPEoPxpo8iJJxorFXShE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=cxAD6GO3; arc=none smtp.client-ip=209.85.208.50 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="cxAD6GO3" Received: by mail-ed1-f50.google.com with SMTP id 4fb4d7f45d1cf-6a0de062db5so5549729a12.1 for ; Mon, 24 Aug 2026 00:47:05 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1787557624; x=1788162424; darn=vger.kernel.org; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:to:subject:user-agent:mime-version:date :message-id:from:to:cc:subject:date:message-id:reply-to:content-type; bh=o7Ey87ju4LDetm2YcfYnI4gNiACJzvnjsA0ht6b+JOY=; b=cxAD6GO3sjOB7VLp8y+U9dcSofBzChL4V9w5xOVowcZmQnc6tJ2wWA7cAfX8vTH8DJ HUzUJJvZEfcAPRd2rAIGl9WOdScZgTLfyNCK80NQUs38ta5DyuNhgBhazjyGA8KXVKdZ ABU0Lt7zTDTZkBGXSWksLF8UZxyzfWLU9IzrFQTcVwQ4c3b7tFJ2FaHGonSIo3lkxKkY A/N+apTOGF4mNOMJSahm/8EvrSk19BGN7/qTmWJQlXjLdPwkXCsobZd3exKfqhwKj1Tk ZxBodgfWoLfl6HsD6hv4IaqMI27yaqUPOzqQtzwEC60nXddnt+urSUgvEWiqvuIvLmZH NHMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1787557624; x=1788162424; h=content-transfer-encoding:content-type:in-reply-to:from :content-language:references:to:subject:user-agent:mime-version:date :message-id:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=o7Ey87ju4LDetm2YcfYnI4gNiACJzvnjsA0ht6b+JOY=; b=DuMUvP045BgZ5K+qLGYIrWP0kSzLxaVNSYEUc/FGJnrp/fME4K1bqyQ/cgmapo83h7 68Ocay88myNhaRF6PaNDNaDx632aKB3YCcp3ZNTW4ZykrJGdl63Gk+e8qr4/k5Xm4CKZ A7VFiBpu1v+UFKRbfPcHqlmIrtC4DTF1zEImUzQP4JHoMZmZQFqr/UtlD+hxFHceu6GQ J32oGSRse8MjWceYVcSO3wDHck4XYP4BO3b6pCsxyj/3yoNn9roVWdQhku/lrZoZRby6 F3T9EJ8tej5mhmSxYMKxbmmQqlBX7z9Ry2e0Tj+Bv2Hc4WYwbze8/TvDQlWxkJ5PdF7+ 1HKA== X-Forwarded-Encrypted: i=1; AHgh+RqdiVULJQZkyK1oSLrAptJmkQPSWnfhXwWlAbQeEXgvNcsIgv9MbVSITCEyase/sE8hH+RD+qb0IZk=@vger.kernel.org X-Gm-Message-State: AFuF++mxhnZInQxhA2Yu7y9T2sBK7Vmq5f+kvi6JyQFsaFaXMdkQmc4O Tm6hmMwdH9414EOE3sb7FCF4MKHYdRlSYmIHc9NUokJOh/DExcB17wsz X-Gm-Gg: AR+sD10fUogPqYDZEwwZJdvSIralpTvvx4mA1S+HZPBf21dk/9UYd1RuV4bO4oi4gi6 kCHDwRbIcIKuPxnWUXVPo3YV5CngA7d5h4B2v+zF7vg5QawQmn+P9f8HP73vgrqxEw8GktIoYT/ 1V+BZ0ww8lnH1vGHeg7HQDUFbcoMNCm+wJYRKhKevYQbwwsUm3UyihRK2QGXwV3+JqjihrlCKDG d6mQpUtgV9seQNbSxsydTFldtpAQkRsMXVD/6UpAJP5HiGvxUZQRjLgroqw02yZh1Pza7tzj2Dn 9CT6CwK58w7+e/qYLRCBuR3c0p61jjGWAAipoAOH3tKZfZILHUa+JDBPfA4VmPuwD6s0x72PF7V q5sP13PKcD7dDZM4AJj79BJVMBiqaLpuCJJdZDPI5hYuj4aJ2AuFMsklwnD10Bx3I/kjdWlYqvc hS/RHc/Hfgdcho5JWScYqb1Um4HtoBdj1010KJ8XUmuDa5LtrNHd/ROqNv6pUDcj8IZu3aiwUSt tLxmQcvcw+lzcG35UHMGBtfS5os1VhJ+m8k/teSeDVW5Qo7B4pru68Op4PK X-Received: by 2002:a05:6402:27c6:b0:6a3:f34d:8f67 with SMTP id 4fb4d7f45d1cf-6a42f19fca6mr26412323a12.5.1787557624189; Mon, 24 Aug 2026 00:47:04 -0700 (PDT) Received: from [192.168.1.187] ([188.192.159.165]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-6a5b93f3acdsm726997a12.19.2026.08.24.00.47.03 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 24 Aug 2026 00:47:03 -0700 (PDT) Message-ID: <26b990b8-51ce-4303-9dc1-c41bfce69900@gmail.com> Date: Mon, 24 Aug 2026 09:47:02 +0200 Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] usb: gadget: f_ncm: Restart timer when eth_start_xmit() fails To: Francesco Lavra , Greg Kroah-Hartman , Kuen-Han Tsai , Kees Cook , raub camaioni , Sonali Pradhan , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org References: <20260727165441.1969927-1-flavra@baylibre.com> Content-Language: en-US From: Felix Schladt In-Reply-To: <20260727165441.1969927-1-flavra@baylibre.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi Francesco, I tested this patch on a Raspberry Pi 4B running Linux 6.12.105 built with Yocto, using the f_ncm USB gadget. Without the patch, I can reproducibly observe multi-second TX stalls under sustained network traffic. With the patch applied, I can no longer reproduce the issue. Tested-by: Felix Schladt Thanks, Felix