Messages in this thread Patch in this message | | | Subject | Strange patch to the Z85230 driver. | From | Alan Cox <> | Date | 12 Oct 2002 19:02:29 +0100 |
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These are DMA ring buffers for ISA DMA, they do not need to be zeroed.
diff -Nru a/drivers/net/wan/z85230.c b/drivers/net/wan/z85230.c --- a/drivers/net/wan/z85230.c Fri Oct 11 21:22:51 2002 +++ b/drivers/net/wan/z85230.c Fri Oct 11 21:22:51 2002 @@ -889,12 +889,12 @@ if(c->mtu > PAGE_SIZE/2) return -EMSGSIZE; - c->rx_buf[0]=(void *)get_free_page(GFP_KERNEL|GFP_DMA); + c->rx_buf[0]=(void *)get_zeroed_page(GFP_KERNEL|GFP_DMA); if(c->rx_buf[0]==NULL) return -ENOBUFS; c->rx_buf[1]=c->rx_buf[0]+PAGE_SIZE/2; - c->tx_dma_buf[0]=(void *)get_free_page(GFP_KERNEL|GFP_DMA); + c->tx_dma_buf[0]=(void *)get_zeroed_page(GFP_KERNEL|GFP_DMA); if(c->tx_dma_buf[0]==NULL) { free_page((unsigned long)c->rx_buf[0]); @@ -1079,7 +1079,7 @@ if(c->mtu > PAGE_SIZE/2) return -EMSGSIZE; - c->tx_dma_buf[0]=(void *)get_free_page(GFP_KERNEL|GFP_DMA); + c->tx_dma_buf[0]=(void *)get_zeroed_page(GFP_KERNEL|GFP_DMA); if(c->tx_dma_buf[0]==NULL) return -ENOBUFS; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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