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Sat, 17 Oct 2026 19:08:44 -0700 (PDT) From: Myeonghun Pak To: netdev@vger.kernel.org Cc: andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@kernel.org, kuba@kernel.org, pabeni@redhat.com, linux-kernel@vger.kernel.org, stable@vger.kernel.org, ae878000@gmail.com, daniel.machon@microchip.com Subject: [PATCH net v3 0/2] net: nixge: fix tasklet and DMA teardown Date: Sat, 17 Oct 2026 22:08:38 -0400 Message-ID: <20261018020840.3851552-1-mhun512@gmail.com> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Separate the IRQ/tasklet ordering fix and the DMA shutdown fix from v2, as requested by Daniel Machon. Patch 1 releases both IRQ handlers before draining dma_err_tasklet. Patch 2 masks channel interrupts after recovery has stopped and waits for DMA reset completion before releasing the buffers. On reset timeout, it retains those buffers and prevents a later open from replacing them. Changes in v3: - Split the IRQ/tasklet ordering fix and DMA shutdown fix into two patches. - Give each fix its own subject and commit message. - Order the nixge_stop() local declarations longest to shortest (RXT). Changes in v2: - Wait for DMA reset completion; retain buffers and reject reopen on timeout. v2: https://lore.kernel.org/netdev/20261004042702.1130389-1-mhun512@gmail.com/ Review: https://lore.kernel.org/netdev/20261007104833.4ukkys7rnmv7ki5i@DEN-DL-M70577.microsemi.net/ Based on net commit 6dc989ea46b96ce170840174b4a38c4a387fb005. Found by code inspection. No hardware testing. Myeonghun Pak (2): net: nixge: free IRQs before killing the DMA error tasklet net: nixge: wait for DMA reset before releasing buffers drivers/net/ethernet/ni/nixge.c | 33 ++++++++++++++++++++++++++++++--- 1 file changed, 30 insertions(+), 3 deletions(-) base-commit: 6dc989ea46b96ce170840174b4a38c4a387fb005 -- 2.53.0