From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CE5A810F5 for ; Wed, 13 Sep 2023 09:17:52 +0000 (UTC) Received: from mail-wm1-x333.google.com (mail-wm1-x333.google.com [IPv6:2a00:1450:4864:20::333]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C9BAC1993 for ; Wed, 13 Sep 2023 02:17:51 -0700 (PDT) Received: by mail-wm1-x333.google.com with SMTP id 5b1f17b1804b1-403012f27e1so46626345e9.1 for ; Wed, 13 Sep 2023 02:17:51 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=resnulli-us.20230601.gappssmtp.com; s=20230601; t=1694596670; x=1695201470; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=pAjwj3vFJAui/OGA0IHuJXUUcCG/qk5wDLNVjB5au/s=; b=18+d0PIpCYfc4xrPlb6/2mgS+3+jK2Ue8dFX6/LDI5x17PaCpmMvi9N2UJ0s+g7kAC XuhCMqKbzFqelftL9VT8dSYNxaH8Ec/nL02krxzI1Y2g8vw3oVvOhUOf4Bn/25ttbNka CUgn6eQP71Ib9NiYSE6Bfhj87SP0PuTBfZgPrKOXf1h3GhWSdJBj42CSCFmTFAcvN94F naQKNFECoQbWglKsjDBveMr2cDmL2rV6AQcwwKKf6SvgHchr7Io85wAtD3YhkJSGVXLu n/g7TfX4SsRv9TWUjV2EfvHdVpRTEOtV1STIA4c8d2oPA+dMGIal6fJQVSSglqZZSVnn c5HQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1694596670; x=1695201470; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=pAjwj3vFJAui/OGA0IHuJXUUcCG/qk5wDLNVjB5au/s=; b=H8UGNm/P+E7tbjgvKB+XFjQ5LLY6+/xet/Ogr0PgITjbsn3wofiT4nZ2Bhp8fOTPgg njZxExqB608QsG/TYWJha38LyiCEydZ2awPUHJ2gJwyDAvkNkKCn7EYM24vmTOvYStEj 5vuZDEjPHIDiJDBrlfL37bVpltYIlzTR7DukeOrN1n3TBdQ+DZc5EkBYKKyKgrywlXdo D4Rnq6ydimvY2vwgxWp3Qpvd6EfYSlVG+xNbHAQhD3KTq0vySkMwAU9tqjp+exzzrCi3 XtDWt+A6FOs2kKtSRYp6IXqJgdGypskuOj7HdfuommywVZY8f3iuc+/jyiv0aBNom6Lj Cb/g== X-Gm-Message-State: AOJu0YzJge0C72KjVyYLMPf93RI8kWNJOHzmMa6PLYZo2Cgjo+Gk3qM7 ByKwX0fIQ5icattcWyyoCM9Kmw== X-Google-Smtp-Source: AGHT+IGYrZIoH7RVHwDTt7jAikBWmHKVtRJY8VFrQZWdVrpcxA9ztB//ZndOBHoEMjiTRYDolro5tw== X-Received: by 2002:a05:600c:2212:b0:401:b2c7:349b with SMTP id z18-20020a05600c221200b00401b2c7349bmr1553594wml.7.1694596670178; Wed, 13 Sep 2023 02:17:50 -0700 (PDT) Received: from localhost (host-213-179-129-39.customer.m-online.net. [213.179.129.39]) by smtp.gmail.com with ESMTPSA id m13-20020a7bca4d000000b003fe4548188bsm1450437wml.48.2023.09.13.02.17.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 13 Sep 2023 02:17:49 -0700 (PDT) Date: Wed, 13 Sep 2023 11:17:48 +0200 From: Jiri Pirko To: Jinjian Song Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, corbet@lwn.net, loic.poulain@linaro.org, ryazanov.s.a@gmail.com, johannes@sipsolutions.net, chandrashekar.devegowda@intel.com, linuxwwan@intel.com, chiranjeevi.rapolu@linux.intel.com, haijun.liu@mediatek.com, m.chetan.kumar@linux.intel.com, ricardo.martinez@linux.intel.com, netdev@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, nmarupaka@google.com, vsankar@lenovo.com, danielwinkler@google.com Subject: Re: [net-next v4 0/5] net: wwan: t7xx: fw flashing & coredump support Message-ID: References: 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-Disposition: inline In-Reply-To: Tue, Sep 12, 2023 at 11:48:40AM CEST, songjinjian@hotmail.com wrote: >Adds support for t7xx wwan device firmware flashing & coredump collection >using devlink. I don't believe that use of devlink is correct here. It seems like a misfit. IIUC, what you need is to communicate with the modem. Basically a communication channel to modem. The other wwan drivers implement these channels in _ctrl.c files, using multiple protocols. Why can't you do something similar and let devlink out of this please? Until you put in arguments why you really need devlink and why is it a good fit, I'm against this. Please don't send any other versions of this patchset that use devlink. NACK.