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[93.144.6.81]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-48e3804cbd1sm4881269f8f.39.2026.10.23.05.40.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 23 Oct 2026 05:40:53 -0700 (PDT) Date: Fri, 23 Oct 2026 14:40:53 +0200 From: Lorenzo Bianconi To: Baochen Qiang Cc: Jeff Johnson , Kalle Valo , Baochen Qiang , Jeff Johnson , linux-wireless@vger.kernel.org, ath12k@lists.infradead.org Subject: Re: [PATCH ath-current v2] wifi: ath12k: fix DMA direction for re-injected Rx buffers Message-ID: References: <20261023-ath12k-fix-dma-mapping-for-reinject-packets-v2-1-9f436a26dd72@oss.qualcomm.com> <2467a07c-e215-4cfa-82ac-22214a144dae@oss.qualcomm.com> X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="zIoI+Sq/aIvOtaD/" Content-Disposition: inline In-Reply-To: <2467a07c-e215-4cfa-82ac-22214a144dae@oss.qualcomm.com> X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYxMDIzMDA0OSBTYWx0ZWRfX78Fbu/PIJkGS 9WmY0OTihxswUZzvntLpOAQah4gsMWbwWjP/n7+rw20zBft6vp0HURvVYfInlSfmekiR9eW0ImU PT7Ep9N5dzTtBuO+bgbroSPj64bK28YqzrX6IvqGDRFuutP2pAPbAptVjyDJ6nyWnkianeNVj1l O2xW2pXShJBC6LinzUIWVy9NMe1Wh20/+3IWXEDZtTWgEs3DqAKOvT4lJWf3lqkIuCkIVhdRjZg 6+phvKnlXKHt82TVq8u8J9owCjT2ZkeSoBdWhThpMI00piCP4JD97rS9lrPnKj79eteF6EOsEBL O/docDP0GAlGD3alyxUl/r8On8ob3r81pkY1X45r2HKLWlF1xbR6h15t1yejDTeXZzp8ErhFKXH CkKjo2gCSsixoyKCheWcujceJhz/IQmh2u7JTb1pNIg6es8vO8hhz+U3arnAOUSyu1by9LIJf4F GqfzdycuRVv3FO5gSbQ== X-Proofpoint-ORIG-GUID: 5R15SpcaGmK5UYs8XnanbK0hCkFi6nwT X-Proofpoint-Spam-Info: AW1haW4tMjYxMDIzMDA0OSBTYWx0ZWRfX4aF5tA6Yxb0w 2E5HkEsh5S2Ek3fPLLXxBzP9pcOah7g0cBTHTEfRAM41Js69i6e+/mVkEM/KThgLmKEFmhD/3Mw YJEJMr47lbtSv2L8+XeWy2TmtR70BDI= X-Proofpoint-GUID: 5R15SpcaGmK5UYs8XnanbK0hCkFi6nwT X-Authority-Analysis: v=2.4 cv=GLKdgeNK c=1 sm=1 tr=0 ts=6adb55d8 cx=c_pps a=hnmNkyzTK/kJ09Xio7VxxA==:117 a=7fYLNvKHbgS61GKHX+yayQ==:17 a=660iZSQnnn4A:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=yOCtJkima9RkubShWh1s:22 a=UEhgMTqEtwQYctlcQgUA:9 a=CjuIK1q_8ugA:10 a=Y_mCc7UgKoaLYVoAt08A:9 a=PEH46H7Ffwr30OY-TuGO:22 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.138,FMLib:17.12.100.49 definitions=2026-10-23_03,2026-10-21_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 phishscore=0 impostorscore=0 bulkscore=0 spamscore=0 lowpriorityscore=0 clxscore=1015 priorityscore=1501 suspectscore=0 malwarescore=0 adultscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2610190000 definitions=main-2610230049 --zIoI+Sq/aIvOtaD/ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable >=20 >=20 > On 10/23/2026 5:25 PM, Lorenzo Bianconi wrote: >=20 > > @@ -983,8 +980,8 @@ static int ath12k_wifi7_dp_rx_h_defrag_reo_reinject= (struct ath12k_dp *dp, > > list_add_tail(&desc_info->list, &dp->rx_desc_free_list); > > spin_unlock_bh(&dp->rx_desc_lock); > > err_unmap_dma: > > - dma_unmap_single(dp->dev, buf_paddr, defrag_skb->len + skb_tailroom(d= efrag_skb), > > - DMA_TO_DEVICE); > > + ath12k_dp_unmap_rx_buf(dp, defrag_skb); >=20 > buf_paddr has not been updated to skb_cb->paddr when we reach here. v1 has >=20 > rxcb->paddr =3D buf_paddr; >=20 > before jumping, so v1 is good. Right, my bad. I will fix it in v3. Regards, Lorenzo --zIoI+Sq/aIvOtaD/ Content-Type: application/pgp-signature; name=signature.asc -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTquNwa3Txd3rGGn7Y6cBh0uS2trAUCattV1QAKCRA6cBh0uS2t rASRAP9/h1Ne68h3DFwA4hlbveqXV+DMJH1NDbXYR/ZZui957wEAsfqzec/SjqfN XzXA9xbhpgRJyXKU7e2ZfLdvki+DPA4= =9Eui -----END PGP SIGNATURE----- --zIoI+Sq/aIvOtaD/--