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[103.229.16.4]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-39e3617443asm9284630a91.9.2026.09.17.18.37.54 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 17 Sep 2026 18:37:55 -0700 (PDT) Message-ID: <91f72bf8-de7c-4ece-bfcd-286da649bc28@oss.qualcomm.com> Date: Fri, 18 Sep 2026 09:37:55 +0800 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> From: Baochen Qiang Content-Language: en-US In-Reply-To: <20260916060325.854-1-kang.yang@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTE4MDAxOCBTYWx0ZWRfXyMC6xhHuXGha fDlkx/p2Km7rv+tqDl6xWzQEq1dWxmYtwRaIuUULteuyfU9dSpxQdkAFDNQbg0dhv7+Bd0mEl5f t/p7j27uvpYkQZJuQpjv3lNASO37mXU9/OWV1hgxfgxa+Z38JpHfhkLQO9KejAa3mLeSj4atoEC 3wf1KYKflNO1wXVJAoiZyvSAbxO0wWpL9zLYKIiKGwrEnMf8AmuU8RK/WB38LHX8M4PPsfIwDRa v9KmxxkNnDUdrA2SAGRuGn33SFc6cRwwkmqNYPPYt0U4FKthwyerJoVVNOC2W+PyIl7w/+RDThs kYpETXFNY7pGH38IdAUwWuvcdzyr1yAQwKCMB2TcW16y102y7/pd6l80QlSXzoUHCPXTzDFdkf1 /yeG49pSNpN8wAt0+uX5jFEpw6LmOFN186dV2QZV/IjQAmUsyYFrhYj+8po9tARdZ24ROzQGs93 c8wFyw9NQstkxRRT1LA== X-Authority-Analysis: v=2.4 cv=N+e8hG9B c=1 sm=1 tr=0 ts=6aac95f4 cx=c_pps a=0uOsjrqzRL749jD1oC5vDA==:117 a=nuhDOHQX5FNHPW3J6Bj6AA==:17 a=IkcTkHD0fZMA:10 a=VdqzKS8jKosA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=eoimf2acIAo5FJnRuUoq:22 a=EUspDBNiAAAA:8 a=jeZ2dEGWif2cJ8v1hNMA:9 a=QEXdDO2ut3YA:10 a=mQ_c8vxmzFEMiUWkPHU9:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTE4MDAxOCBTYWx0ZWRfX7G23JtuFPX/R 3aZfG3weCDU3AstGeNXGdxAWGbv6n9iPzpXrXCVoMD/g/e/6j8cpkwiccZvMa60uMYUUZl9O6tR KwAqlHZIDg+AtzdavhB4vmuXiLyPoRo= X-Proofpoint-ORIG-GUID: FgGoMiIA2tbhAkfdXxeDrA0zO2yDV_IW X-Proofpoint-GUID: FgGoMiIA2tbhAkfdXxeDrA0zO2yDV_IW 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_05,2026-09-16_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 suspectscore=0 lowpriorityscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 spamscore=0 adultscore=0 impostorscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2609040000 definitions=main-2609180018 On 9/16/2026 2:03 PM, 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(-) > > > base-commit: c3bace8584ca707e34ba837f65c2e9d566af4c2c Reviewed-by: Baochen Qiang