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[103.229.18.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3a7c8d318f4sm4514243a91.3.2026.10.05.09.01.42 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 05 Oct 2026 09:01:45 -0700 (PDT) Message-ID: Date: Mon, 5 Oct 2026 21:31:40 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH wireless-next v2 01/16] wifi: nl80211: Define Seamless Mobility Domain (SMD) device capability To: Johannes Berg , Kees Cook , "Gustavo A. R. Silva" Cc: linux-wireless@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org References: <20260924-smd-v2-0-bb40094da1d4@oss.qualcomm.com> <20260924-smd-v2-1-bb40094da1d4@oss.qualcomm.com> Content-Language: en-US From: Pooventhiran G In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: UYQ-YtMXe8MwYuVQllA7uq-rTozHRQY2 X-Proofpoint-GUID: UYQ-YtMXe8MwYuVQllA7uq-rTozHRQY2 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDA1MDA2MiBTYWx0ZWRfX+c/yJcxpqHzi ojfWjyQA3hMnYA6KIervYe8i189Ze+fVLsFcrNJY2skvOf/jm4tWvuBHmscMuqFZbgDE9R0LL7Q riPr+yNgsaPW7HLyOYJjEQmO3HuNpNJK1+tBzK7QIzNV+tGEmwJbhNS67dafWjaIlOKgM0IyNQU fp4AofO82LS8N4kSKNieqsrPI00JFxQrVib791CsXSLgKSepfRL9t66Vt2R04Mw7En5uq+tPXiM sc9V0K1y8IDiQ/QHdOCW+OsTY07Uy1Oqd5nta5W3HmDVudImhWLWXnxVjoWI/Pj4AhsAyyjQljl BmF9PHHor8genGm5yl9s2hh0KjIi7Mi5Q7d9GQwiyiiYmbsIVFulAIv6ZtBOUtJSeNFWhG43Cpd gJ8xG1OMYwHA11uA78ge2kwxiluavWqtVwRm6j8BFflvKtSdvJIgvkqj/EvfNrEN1zlcLrrVeEb LVMN7ofqaeouLOo3N5A== X-Proofpoint-Spam-Info: AW1haW4tMjYxMDA1MDA2MiBTYWx0ZWRfX1TuzcaC1U/Sd BoLp/ZNl1Atjb4KkAAuNaY9lLntJ1mwmcGgkAJldWfwmac1xJpfFeHEHiFIXZgabm4YAcSGvMv9 /vxAgD4LIDbrsIH/SQ2Qj8GaPLUQFFQ= X-Authority-Analysis: v=2.4 cv=P9WvFSAu c=1 sm=1 tr=0 ts=6ac3c9eb cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=Ou0eQOY4+eZoSc0qltEV5Q==:17 a=IkcTkHD0fZMA:10 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=aBhZnu2hFUD8Z5ll-XkA:9 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-10-05_04,2026-10-05_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 bulkscore=0 clxscore=1015 spamscore=0 priorityscore=1501 lowpriorityscore=0 adultscore=0 suspectscore=0 malwarescore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2610050062 On 10/02/2026 12:11 pm, Johannes Berg wrote: > On Thu, 2026-09-24 at 08:10 +0530, Pooventhiran G wrote: >> >> Subclause 37.16.11 defines an optional capability for the current AP >> MLD to forward buffered downlink (DL) data frames for the non-AP MLD to >> the target AP MLD. > > I ... don't see how you would implement that by defining just a feature > bit?! And you have no documentation for how it'd be implemented, nor any > additional code in mac80211, though that would seem to be necessary > given that it also queues frames? > > IOW, "driver supports forwarding" doesn't make much sense without other > mechanisms _somewhere_, and then those should be described (perhaps in a > new nl80211.h DOC: section, which is probably a good idea for the whole > SMD AP-side anyway). > > johannes DL data forwarding is not supported yet in this series. I will clean this up in v3, and will add this back when DL data forwarding support is upstreamed.