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[118.232.8.190]) by smtp.googlemail.com with ESMTPSA id d2e1a72fcca58-7e29f2ed000sm11551934b3a.1.2025.12.07.19.20.36 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 07 Dec 2025 19:20:37 -0800 (PST) From: Zenm Chen To: pkshih@realtek.com Cc: linux-wireless@vger.kernel.org, marco.crivellari@suse.com, rtl8821cerfe2@gmail.com, zenmchen@gmail.com Subject: RE: [PATCH rtw-next] Revert "wifi: rtw88: add WQ_UNBOUND to alloc_workqueue users" Date: Mon, 8 Dec 2025 11:20:32 +0800 Message-ID: <20251208032033.5793-1-zenmchen@gmail.com> X-Mailer: git-send-email 2.52.0 In-Reply-To: References: Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi Ping-Ke, Ping-Ke Shih 於 2025年12月8日週一 上午10:11寫道： > > Hi Zenm, > > Zenm Chen > > Hi, > > > > Last weekend I tried applying the v1 [1] to the kernel 6.17.9, but that one didn't work, either. > > > > [1] > > https://patchwork.kernel.org/project/linux-wireless/patch/20251113160605.381777-3-marco.crivellari@sus > > e.com/ > > > > [ 306.035759] usb 3-2: new high-speed USB device number 5 using ehci-pci > > [ 306.162258] usb 3-2: New USB device found, idVendor=0bda, idProduct=b82c, bcdDevice= 2.10 > > [ 306.162272] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3 > > [ 306.162278] usb 3-2: Product: 802.11ac NIC > > [ 306.162282] usb 3-2: Manufacturer: Realtek > > [ 306.162286] usb 3-2: SerialNumber: 123456 > > [ 306.239143] ------------[ cut here ]------------ > > [ 306.239148] WARNING: CPU: 3 PID: 2886 at kernel/workqueue.c:5667 alloc_workqueue_noprof+0x676/0x770 > > I think this is because kernel 6.17.9 defines: > > __WQ_BH_ALLOWS = WQ_BH | WQ_HIGHPRI, > > and the latest is: > > __WQ_BH_ALLOWS = WQ_BH | WQ_HIGHPRI | WQ_PERCPU, > Thank you for pointing out this. Have confirmed the patch v1 does work on Arch Linux with kernel 6.18.0-1-mainline.