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Thu, 17 Sep 2026 03:44:31 -0700 (PDT) X-Received: by 2002:a05:6a20:d10f:b0:3d3:aec2:4dc9 with SMTP id adf61e73a8af0-3dd5f72b353mr17153666637.21.1789641870660; Thu, 17 Sep 2026 03:44:30 -0700 (PDT) Received: from [10.152.209.53] ([202.46.23.19]) by smtp.gmail.com with ESMTPSA id a92af1059eb24-144c9f0da19sm186695c88.7.2026.09.17.03.44.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 17 Sep 2026 03:44:30 -0700 (PDT) Message-ID: <1da678cc-d2f3-46d2-9cb1-1c3ed2a8f0a3@oss.qualcomm.com> Date: Thu, 17 Sep 2026 16:14:26 +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: [PATCH ath-next 0/6] wifi: ath12k: fix monitor RX buffer lifecycle issues To: Kang Yang , ath12k@lists.infradead.org Cc: linux-wireless@vger.kernel.org References: <20260916060325.854-1-kang.yang@oss.qualcomm.com> Content-Language: en-US From: Vasanthakumar Thiagarajan In-Reply-To: <20260916060325.854-1-kang.yang@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: 7-iDwJNCZSR_TiSLMzdWze9blSYymX_Y X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTE3MDE0OSBTYWx0ZWRfX4v6skQiXdg5w 9/vnV7miLQ5HxAVWiFBhTogOkhAisQAn9hYsyNr+US7knRjCTnAPh0rDZ7dZ1yBhH4AJBVdj3He ehHG3TjcbjNFKPRRzTRzAeSp2kjRiEiuXYyQXe2Yc2qbcS2WvWV7wcJogVlCSiT3dDx8Ie0hsmj Fum8eOT6n/cFBU6KlMOLwWF79Fv8D9f70vG97kHzzeExOx7NYxh/7fCrLmS3Bvi30b25k8i4wNh xLUvygco6B84QmqcqDdRBgipPYiz7y1TyFrr1478YOiroR1tCG+754nyC/MeRLlUJjY8zfMUa1n 2rHQpFKpEZNweIY3z7ZwSZ4whGUUyHYjy/E6vT7jmTb9Rb/JrBNY0ZLaDETVt+TuI/E211D9iHX 9Rkg3F3SExbei1Pd1hq+G52xoShBB508VgugnH9t/sNaMHgpSFaactGZ9tI2GHE/N7wrcLLGJz+ MrXV/RJYAsDWjDSaV3w== X-Proofpoint-GUID: 7-iDwJNCZSR_TiSLMzdWze9blSYymX_Y X-Proofpoint-Spam-Info: AW1haW4tMjYwOTE3MDE0OSBTYWx0ZWRfX/ywAYixXtiUU 71/sFl5mXUWW9CkLijdbHRm09fl2zVH4Zzy35Q1+rBr8huzjr/kHgnXi4KP6NLR8/7NITjMewTX JdHrc5c9h7uLXbLsZ9cXxAltYlf2e4A= X-Authority-Analysis: v=2.4 cv=dMUzC+Zb c=1 sm=1 tr=0 ts=6aabc48f cx=c_pps a=Oh5Dbbf/trHjhBongsHeRQ==:117 a=j4ogTh8yFefVWWEFDRgCtg==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=YMgV9FUhrdKAYTUUvYB2:22 a=EUspDBNiAAAA:8 a=jeZ2dEGWif2cJ8v1hNMA:9 a=QEXdDO2ut3YA:10 a=_Vgx9l1VpLgwpw_dHYaR: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=2026-09-17_02,2026-09-16_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 bulkscore=0 impostorscore=0 suspectscore=0 spamscore=0 phishscore=0 adultscore=0 clxscore=1015 lowpriorityscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609170149 On 9/16/2026 11:33 AM, Kang Yang wrote: > This series fixes several monitor RX buffer management bugs in the > monitor destination path. > > The fixes address leaked skb buffers, stale monitor descriptor state, > object lifetime issues, and incorrect DMA unmap handling observed in > various error and corner cases. > > Kang Yang (6): > wifi: ath12k: fix skb leak on paddr mismatch in wifi7 mon RX pop > wifi: ath12k: free pending MSDUs on duplicate mon link descriptor > wifi: ath12k: fix stale tail_msdu pointer returned from mpdu_pop > wifi: ath12k: place dp_mon_mpdu on stack in mon dst reap loop > wifi: ath12k: fix skb leak on monitor PPDU ID wraparound > wifi: ath12k: avoid double DMA unmap of held monitor RX buffers > > drivers/net/wireless/ath/ath12k/dp.c | 9 +++---- > drivers/net/wireless/ath/ath12k/dp_mon.c | 15 ++++++------ > drivers/net/wireless/ath/ath12k/dp_mon.h | 2 +- > .../net/wireless/ath/ath12k/wifi7/dp_mon.c | 24 +++++++++---------- > 4 files changed, 24 insertions(+), 26 deletions(-) > > Reviewed-by: Vasanthakumar Thiagarajan