Re: [PATCH net-next 2/4] net: spacemit: Add K1 Ethernet MAC
From: Jakub Kicinski
Date: Fri Jun 13 2025 - 09:31:59 EST
On Fri, 13 Jun 2025 10:15:08 +0800 Vivian Wang wrote:
> + rx_ring->desc_addr = dma_alloc_coherent(&pdev->dev, rx_ring->total_size,
> + &rx_ring->desc_dma_addr,
> + GFP_KERNEL);
> + if (!rx_ring->desc_addr) {
> + kfree(rx_ring->rx_desc_buf);
> + return -ENOMEM;
> + }
> +
> + memset(rx_ring->desc_addr, 0, rx_ring->total_size);
dma_alloc_coherent() already clears memory.
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