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[73.151.174.35]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-2d55f5c6b10sm6249959eec.5.2026.04.10.15.51.40 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 10 Apr 2026 15:51:41 -0700 (PDT) Message-ID: <761f83cc-58eb-4b4a-ba91-d11412e7b2a6@gmail.com> Date: Fri, 10 Apr 2026 15:51:39 -0700 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH net] netrom: do some basic forms of validation on incoming frames To: hugh@blemings.id.au, Kuniyuki Iwashima , kuba@kernel.org Cc: davem@davemloft.net, edumazet@google.com, gregkh@linuxfoundation.org, horms@kernel.org, linux-hams@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, pabeni@redhat.com, stable@kernel.org, workflows@vger.kernel.org, yizhe@darknavy.com References: <20260410145448.38253e3c@kernel.org> <20260410221220.1708137-1-kuniyu@google.com> <4f5810a7-c792-4d6b-9f7c-6c6b289def19@blemings.org> Content-Language: en-US From: Craig In-Reply-To: <4f5810a7-c792-4d6b-9f7c-6c6b289def19@blemings.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit > If the main concern here is ongoing maintenance of these Ham Radio > related protocols/drivers, can we pause for a moment on anything as > dramatic as removing from the tree entirely ? > > There is a good cohort of capable kernel folks that either are or were > ham radio operators who I believe, upon realising that things have got > to this point, will be happy to redouble efforts to ensure this code > maintained and tested to a satisfactory standard. > > Or, alternatively, as a technical community it may be that the Ham > Radio interested folks conclude that out of tree or user space > solutions are a better way forward as others have proposed. > > Give us a few days, please, for the word to be put around that we need > to pull ourselves together a bit as a technical group :) > I, for one, really can't imagine pulling an entire network subsytem out of the kernel without any knowledge of how/if/when it's used.  Like intercontinental radio networks, global email, ax.25 keyboard-to-keyboard, BBS and other emergency-communication systems throughout the world.  If you're sure the Internet will never fail, I guess it makes sense removing all of this since it's inconvenient to maintain. Global AX.25 keyboard-to-keyboard on 14.105Mhz    https://qsl.net/kb9pvh/105.html AX.25/netrom VHF routed networks spanning from Oregon to Los Angeles.    https://www.easymapmaker.com/map/80666c4898ec6e8fa0c35add5d03282d Global radio email using AX.25   https://winlink.org/RMSChannels (1,336 AX.25 email packet nodes on the Earth and Space) This is all in operation by Amateur Radio ARES emergency protocols/technologies.  This will not pass the headline test when it comes to Linux detractors. Most of this is running on Raspberry Pi / Linux 24/7. If we want to kill all these apps and somehow force them into user space, it's akin to just switching to Windows - and flounder with the Microsoft folks trying to do the same thing. -craig https://digipi.org/