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[188.216.175.96]) by smtp.gmail.com with ESMTPSA id f3-20020a170906824300b0099b921de301sm8875255ejx.159.2023.09.06.04.37.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 06 Sep 2023 04:37:35 -0700 (PDT) Message-ID: <075308b2-7768-40b2-9c00-a5a14df62678@gmail.com> Date: Wed, 6 Sep 2023 13:37:34 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Regression with AX88179A: can't manually set MAC address anymore Content-Language: en-US, it-IT To: Bagas Sanjaya , netdev@vger.kernel.org Cc: Linux Kernel Mailing list , Linux Regressions , Oliver Neukum , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Greg Kroah-Hartman References: <54cb50af-b8e7-397b-ff7e-f6933b01a4b9@gmail.com> <6315027e-d1ab-4dec-acf2-0a77bb948807@gmail.com> From: Sergio Callegari In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 06/09/2023 03:43, Bagas Sanjaya wrote: > On Tue, Sep 05, 2023 at 09:34:53PM +0200, Sergio Callegari wrote: >> I mean that with kernel 5.15 I could use the in-tree module with some >> glitches (interface occasionally stopping on teleconferencing) as well as >> the indicated out of tree module with no glitches. >> >> With current kernels (certainly from 6.2 on) manually setting a MAC address >> breaks the interface. Furthermore, even if it compiles and loads fine, it is >> impossible to use the out of tree module because it does not create the eth >> device anymore (the eth device now appears with the cdc_ncn module). Being >> this an out of tree module, this is not very important, though. > Then can you please file issue against your external module on that > GH link? Done, but as mentioned, out-of-tree implementations on GH are less interesting than having the in-tree driver working properly. So if the in-tree driver could be fixed to correctly support the manual configuration of the hardware (MAC) address as it used to be that would be the best. I hope that Andrew Lunn's hypothesis is correct, and that cdc_ncm can be extended to work with AX88179A even when a manual MAC addr is configured. Thanks, Sergio