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[83.28.45.75]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-44a98b7721fsm2576602f8f.36.2026.04.30.22.24.25 (version=TLS1_2 cipher=AES128-SHA bits=128/128); Thu, 30 Apr 2026 22:24:26 -0700 (PDT) Date: Fri, 1 May 2026 07:24:23 +0200 From: Michal Pecio To: Andrew Lunn Cc: Birger Koblitz , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , linux-usb@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Chih Kai Hsu Subject: Re: [PATCH net-next 3/4] r8152: Add irq mitigation for RTL8157/9 Message-ID: <20260501072423.1bacdcac.michal.pecio@gmail.com> In-Reply-To: References: <20260428-rtl8159_net_next-v1-0-52d03927b46f@birger-koblitz.de> <20260428-rtl8159_net_next-v1-3-52d03927b46f@birger-koblitz.de> <06a42ba1-b714-45b1-be30-4a793752e495@lunn.ch> <9feb0bc1-b817-46f8-9092-e2beff30ec9d@birger-koblitz.de> <20260429200214.3e8dee67.michal.pecio@gmail.com> <4446ad8c-0f5f-4f5a-8166-557ce9cc91b7@birger-koblitz.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Thu, 30 Apr 2026 16:19:30 +0200, Andrew Lunn wrote: > If you are getting interrupts after the device has been disabled, i > guess it is because the timer for a delayed interrupt is not cancelled > by the firmware. If so you might be able to work around this firmware > bug. Disable the receiver, sleep for 10ms but keep processing > interrupts, and then continue with the tear down. If the device responded to this URB, it would complete with a normal status (success or some USB error). ESHUTDOWN (and the debug log) indicate that the URB was unlinked by USB core due to rmmod, before the driver knew that it's being unloaded and disabled anything. Regards, Michal