From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from wp530.webpack.hosteurope.de (wp530.webpack.hosteurope.de [80.237.130.52]) (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 E281023D3 for ; Fri, 28 Apr 2023 08:45:10 +0000 (UTC) Received: from [2a02:8108:8980:2478:8cde:aa2c:f324:937e]; authenticated by wp530.webpack.hosteurope.de running ExIM with esmtpsa (TLS1.3:ECDHE_RSA_AES_128_GCM_SHA256:128) id 1psJj2-0005Ab-HS; Fri, 28 Apr 2023 10:45:08 +0200 Message-ID: <563d96ca-8c2f-3c84-bef6-10311fa5ebcf@leemhuis.info> Date: Fri, 28 Apr 2023 10:45:08 +0200 Precedence: bulk X-Mailing-List: regressions@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.10.0 Subject: Re: issues with cdc ncm host class driver Content-Language: en-US, de-DE To: Oliver Neukum , "Purohit, Kaushal" , "stable@vger.kernel.org" Cc: "regressions@lists.linux.dev" , "linux-usb@vger.kernel.org" References: <3a51acb5-6862-7558-5807-c94f8e0d0f64@suse.com> From: "Linux regression tracking (Thorsten Leemhuis)" Reply-To: Linux regressions mailing list In-Reply-To: <3a51acb5-6862-7558-5807-c94f8e0d0f64@suse.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-bounce-key: webpack.hosteurope.de;regressions@leemhuis.info;1682671511;95521bf3; X-HE-SMSGID: 1psJj2-0005Ab-HS On 05.04.23 12:53, Oliver Neukum wrote: > On 03.04.23 08:14, Purohit, Kaushal wrote: >> >> Referring to patch with commit ID >> (*e10dcb1b6ba714243ad5a35a11b91cc14103a9a9*). >> >> This is a spec violation for CDC NCM class driver. Driver clearly says >> the significance of network capabilities. (snapshot below) >> >> However, with the mentioned patch these values are disrespected and >> commands specific to these capabilities are sent from the host >> regardless of device' capabilities to handle them. >> >> Currently we are setting these bits to 0 indicating no capabilities on >> our device and still we observe that Host (Linux kernel host cdc >> driver) has been sending requests specific to these capabilities. > > Hi, > > please test the patch I've attached to kernel.org's bugzilla. Did you ever do that? Doesn't look like it from here, but maybe I'm missing something. Ciao, Thorsten (wearing his 'the Linux kernel's regression tracker' hat) -- Everything you wanna know about Linux kernel regression tracking: https://linux-regtracking.leemhuis.info/about/#tldr If I did something stupid, please tell me, as explained on that page. BTW, let me fix something up in regzbot while at it: #regzbot from: Kaushal Purohit #regzbot poke