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[59.127.145.64]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-cd65497e28esm767274a12.7.2026.10.16.02.13.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 16 Oct 2026 02:13:13 -0700 (PDT) From: Zhi-Jun You Date: Fri, 16 Oct 2026 17:12:37 +0800 Subject: [PATCH net v5 5/5] net: ethernet: mtk_wed: bail out when failed to set up rings in wed_start Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20261016-wedfix-v5-5-8b02e78fd34f@gmail.com> References: <20261016-wedfix-v5-0-8b02e78fd34f@gmail.com> In-Reply-To: <20261016-wedfix-v5-0-8b02e78fd34f@gmail.com> To: Felix Fietkau , Lorenzo Bianconi , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Matthias Brugger , AngeloGioacchino Del Regno , Sujuan Chen , Rex Lu Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, Zhi-Jun You X-Mailer: b4 0.16.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1792141974; l=1511; i=hujy652@gmail.com; s=20261016; h=from:subject:message-id; bh=ePo8kYEQepEUUlHGep4r47dMcAUe+w0OHJZFIANEXVY=; b=n9KaOOF5fBmx0U1LSDXbITyZem2x/eJbiwispep6tmzvNhm1EtTdd5kx/xEfHrdoEZpp/bctn SxpS9hnOJO6A+sKBm+tdCHRuzDp4HbwtG6Evlqx2+TjBkoY99pVw88r X-Developer-Key: i=hujy652@gmail.com; a=ed25519; pk=AYHrGhtLNb9z7JIsGOOYWmKKIoVPH7ZZgT+CLIDMuEM= Add error message and return when fail to set up tx/rx wdma rings. This is suggested by Sashiko. Link: https://lore.kernel.org/all/179000700034.2160803.10594281691384015089@kernel.org/ Signed-off-by: Zhi-Jun You --- drivers/net/ethernet/mediatek/mtk_wed.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c index 3a7c2bb33691..86845893ae20 100644 --- a/drivers/net/ethernet/mediatek/mtk_wed.c +++ b/drivers/net/ethernet/mediatek/mtk_wed.c @@ -2353,14 +2353,20 @@ mtk_wed_start(struct mtk_wed_device *dev, u32 irq_mask) for (i = 0; i < ARRAY_SIZE(dev->rx_wdma); i++) if (!dev->rx_wdma[i].desc) - mtk_wed_wdma_rx_ring_setup(dev, i, 16, false); + if (mtk_wed_wdma_rx_ring_setup(dev, i, 16, false)) { + dev_err(dev->hw->dev, "wdma rx ring %d setup failed\n", i); + return; + } /* * non-DBDC MT7986 allocates only rx_ring[1] and tx_wdma[1] during setup * but tx_wdma[0] is also needed for WED to function. */ if (mtk_wed_is_v2(dev->hw) && !dev->rx_ring[0].desc) - mtk_wed_wdma_tx_ring_setup(dev, 0, MTK_WED_WDMA_RING_SIZE, !!dev->tx_wdma[0].desc); + if (mtk_wed_wdma_tx_ring_setup(dev, 0, MTK_WED_WDMA_RING_SIZE, !!dev->tx_wdma[0].desc)) { + dev_err(dev->hw->dev, "wdma tx ring 0 setup failed\n"); + return; + } if (dev->wlan.hw_rro) { for (i = 0; i < MTK_WED_RX_PAGE_QUEUES; i++) { -- 2.47.3