From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f47.google.com (mail-pj1-f47.google.com [209.85.216.47]) (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 7B5C814F82 for ; Fri, 12 Jan 2024 18:42:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=networkplumber.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=networkplumber.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=networkplumber-org.20230601.gappssmtp.com header.i=@networkplumber-org.20230601.gappssmtp.com header.b="2kW2g9V2" Received: by mail-pj1-f47.google.com with SMTP id 98e67ed59e1d1-28cec7ae594so5599450a91.3 for ; Fri, 12 Jan 2024 10:42:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=networkplumber-org.20230601.gappssmtp.com; s=20230601; t=1705084929; x=1705689729; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:from:to:cc:subject:date :message-id:reply-to; bh=x8WA3J+aVFFye1V6n2qw+4XA2DOWJGSaTDfT5ZPdGSI=; b=2kW2g9V2wFWthWGPpfkxIXjO+OCI7MRxM06oELfWwcVLfDO1e9WST36PAgo4RsI6S5 k1q3oOD7/VeRXRuXTV6KMLe/MSTOrwH+rlJuD/gFCiBDxCzMtgxz1vyTjsQoEvtO6XHc cbmPJaZFslHZ9Lj/ztfU6K9Ha+vrlZ0Cs68dGWuoivnK7hOLgrVOV1s0kAxN/DH3apxg ZeTNlOh3uMyX9pKO9l8lF/SOeSkfjXzxqzT8HXvdHdqi5Zf4CVtr/VbdsUyzSvw35nS0 XPFuHwBPmBxT+jGCOO5+d+E8iAzofDbPPLBk29VKSlUbJgtpGfN9xYGSEJBy6MQQMfYo 9ScQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1705084929; x=1705689729; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:subject:cc:to:from:date:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=x8WA3J+aVFFye1V6n2qw+4XA2DOWJGSaTDfT5ZPdGSI=; b=Br7as7nybbknExqrCftR2clg4vLfAHrYpy7NY5lPPg4tFCnuNa+f2DdVV1RZ2VE8Ri KK65ZwIjTndBkEWrLH5tfxbfZiwOiDMMzTj5H8iA7pAg6KZiJPb1m2N0WxyCuyS2xwuK 1nOIu1hDWGSD458xWPN7Ec3GVU4bjFH1L23ypuQkMmiXgp2EWo3UJ8sQvXsmZWTc2Plk 1IJd5ZYX1Ixf6Zcmt7x1mk6SyqBi8x1NcS/Ygo3yS6PaYXpTQ2ooUgjr5dctwuVIQLG/ CkofXAPKJtpSmk2ilTANjO6BwUIoVLSctvRIhp9hU8K1YwnWC4O2VXlzRFiybSsI4NRu AngA== X-Gm-Message-State: AOJu0YwQpBayp6R/o92f8SwMNgNxf8bAlG2mUQOtRgU6imPod+V3YUL+ jfjYAw3jCJdz71v4QD6nYH4R0dwvTgBpbA== X-Google-Smtp-Source: AGHT+IHC9b0fm5WWYAr5DV7Qsj9TDFS+QCNDizz+XcKbcUvtcRAVpyv54oaTzp1mTlkws9V6gdtxIw== X-Received: by 2002:a17:90a:ad0:b0:28c:ee94:cbc4 with SMTP id r16-20020a17090a0ad000b0028cee94cbc4mr1669978pje.63.1705084929595; Fri, 12 Jan 2024 10:42:09 -0800 (PST) Received: from hermes.local (204-195-123-141.wavecable.com. [204.195.123.141]) by smtp.gmail.com with ESMTPSA id sg9-20020a17090b520900b0028d9fc97c29sm4535565pjb.14.2024.01.12.10.42.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 12 Jan 2024 10:42:09 -0800 (PST) Date: Fri, 12 Jan 2024 10:42:07 -0800 From: Stephen Hemminger To: Jiri Pirko Cc: netdev@vger.kernel.org Subject: Re: [PATCH iproute2] man/tc-mirred: don't recommend modprobe Message-ID: <20240112104207.120c0993@hermes.local> In-Reply-To: References: <20240111193451.48833-1-stephen@networkplumber.org> <20240112090915.67f2417a@hermes.local> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Fri, 12 Jan 2024 19:21:34 +0100 Jiri Pirko wrote: > >> > >> You can't add "ifb0" like this, it is created implicitly on module probe > >> time. Pick a different name. > > > >Right. > >Looks like ifb is behaving differently than other devices. > >For example, doing modprobe of dummy creates no device. > > Older drivers did do this. Bonding modprobe also created bond0 in > the past. Now it does not. I guess ifb behaviour could be changed as > well. In most distros, for bond and dummy, there is this from systemd.conf options bonding max_bonds=0 options dummy numdummies=0