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Tue, 24 Feb 2026 09:35:21 -0800 (PST) X-Received: by 2002:a05:6a00:1bc3:b0:824:a2d4:724a with SMTP id d2e1a72fcca58-826daa8a14dmr12291658b3a.62.1771954520511; Tue, 24 Feb 2026 09:35:20 -0800 (PST) Received: from [192.168.1.11] ([122.167.98.34]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-826dd8764c7sm10764019b3a.42.2026.02.24.09.35.17 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 24 Feb 2026 09:35:20 -0800 (PST) Message-ID: Date: Tue, 24 Feb 2026 23:05:05 +0530 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH v2 0/8] Adding NO_STA flag and reworking RX link resolution To: Benjamin Berg , linux-wireless@vger.kernel.org Cc: Rameshkumar Sundaram , Benjamin Berg References: <20260223123818.384184-10-benjamin@sipsolutions.net> Content-Language: en-US From: Ramasamy Kaliappan In-Reply-To: <20260223123818.384184-10-benjamin@sipsolutions.net> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjI0MDE0OCBTYWx0ZWRfX+Jx80CS1awdC ef42WfMjmIyrVTowPo51nG70x0ZwmklrtUaCCMIhYyqeuFu2GvDinK1XrXyufxREalVDXvd13gY jVxrW+N6qIy2Jb4wrRJT1aE13HwpqyYwe4IFfPipvTkmgthHrlWjlr+jweUnCzCc/BbhuX+4P11 tV/vkeuvv9B4scOiFNcHfdnLRtx+DZgXaDupBDUw13fVp3Hdukysotgs6pnhlHBZK3/3x57QK5B sRVwbxZS/1Oy9sSX668CNPnhE61ow/bXlkamC3TC27zX7N9wtZ+A+zYp1Zom5EjW3VfvN6XFc1X H7ZU9A7kn7qMZ+1Mdp8e9HmWLp6WsxDnRgFYmeNWsJg4mOq79Q/wYap6+mo7Czcl9t5YzLPLWL0 YI63KT+NTlV/ae/yMO7ZYet8I9u3LiaatdG01RjKGgnUROLm00lzvKrEQDT6RNHK/lzjG7QmQs6 SfWhpsygMKx4Y3hF7Sg== X-Proofpoint-ORIG-GUID: pU_0c8-ZRgjt1fElESWvTE4n2zbPqeSG X-Authority-Analysis: v=2.4 cv=e7ELiKp/ c=1 sm=1 tr=0 ts=699de159 cx=c_pps a=WW5sKcV1LcKqjgzy2JUPuA==:117 a=3qja58XoCTMbiOcPuMMiMg==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=_K5XuSEh1TEqbUxoQ0s3:22 a=QyXUC8HyAAAA:8 a=RkBCWdiPywd9OFos0c8A:9 a=QEXdDO2ut3YA:10 a=OpyuDcXvxspvyRM73sMx:22 X-Proofpoint-GUID: pU_0c8-ZRgjt1fElESWvTE4n2zbPqeSG X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-24_02,2026-02-23_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 suspectscore=0 adultscore=0 priorityscore=1501 impostorscore=0 lowpriorityscore=0 clxscore=1015 phishscore=0 spamscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2602130000 definitions=main-2602240148 On 2/23/2026 6:08 PM, Benjamin Berg wrote: > From: Benjamin Berg > > Hi, > > This patchset refactors the RX link resolution a bit to fix some issues > where mac80211 might accept frames on the wrong link and incorrectly > translate the address. It also adds a new NL80211_ATTR_FRAME_CMD_NO_STA > flag so that userspace can know whether address translation was done by > the kernel on RX and can also prevent address translation for management > frames during TX. > > This together should be enough to fix the existing issues in hostapd > where stations that are still associated try to authenticate again but > hostapd for example ends up sending the frame to an old link address. > > I would appreciate if you test the patches and work on the hostapd side. > Note that I have not properly verified the new nl80211 API, so it could > well be that I missed something. > I'll work on the hostapd side accordingly and share the patches for review. > Benjamin > > Changes in RFCv2: > * Port other drivers to new API (untested) > * Fix a checkpatch warning > > Benjamin Berg (8): > wifi: iwlwifi: use link_sta internally to the driver > wifi: mac80211: change public RX API to use link stations > wifi: mac80211: refactor RX link_id and station handling > wifi: mac80211: rework RX packet handling > wifi: cfg80211: add attribute for TX/RX denoting there is no station > wifi: mac80211: report to cfg80211 when no STA is known for a frame > wifi: mac80211: pass station to ieee80211_tx_skb_tid > wifi: mac80211: pass error station if non-STA transmit was requested > > drivers/net/wireless/ath/ath11k/dp_rx.c | 2 +- > drivers/net/wireless/ath/ath12k/dp_mon.c | 18 +- > drivers/net/wireless/ath/ath12k/dp_rx.c | 15 +- > drivers/net/wireless/intel/iwlwifi/mld/agg.c | 21 +- > drivers/net/wireless/intel/iwlwifi/mld/agg.h | 4 +- > drivers/net/wireless/intel/iwlwifi/mld/rx.c | 50 +- > drivers/net/wireless/intel/iwlwifi/mld/rx.h | 2 +- > .../wireless/intel/iwlwifi/mld/tests/agg.c | 7 +- > drivers/net/wireless/intel/iwlwifi/mvm/rx.c | 2 +- > drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 6 +- > drivers/net/wireless/mediatek/mt76/mac80211.c | 22 +- > drivers/net/wireless/realtek/rtw89/core.c | 6 - > drivers/net/wireless/virtual/mac80211_hwsim.c | 3 - > include/net/cfg80211.h | 4 + > include/net/mac80211.h | 25 +- > include/uapi/linux/nl80211.h | 7 + > net/mac80211/agg-tx.c | 6 +- > net/mac80211/eht.c | 3 - > net/mac80211/ht.c | 4 +- > net/mac80211/ieee80211_i.h | 14 +- > net/mac80211/iface.c | 7 +- > net/mac80211/mlme.c | 9 +- > net/mac80211/offchannel.c | 13 +- > net/mac80211/rx.c | 436 ++++++++++-------- > net/mac80211/scan.c | 10 +- > net/mac80211/tdls.c | 4 +- > net/mac80211/tx.c | 8 +- > net/wireless/nl80211.c | 8 +- > 28 files changed, 390 insertions(+), 326 deletions(-) > Thanks, Ramasamy