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Date: Wed, 02 May 2007 11:23:52 -0700 From: "Michael Chan" <mchan@...adcom.com> To: "Jeff Garzik" <jeff@...zik.org> cc: "David Miller" <davem@...emloft.net>, "netdev" <netdev@...r.kernel.org> Subject: Re: [PATCH 3/20][BNX2]: Add 40-bit DMA workaround for 5708. On Wed, 2007-05-02 at 11:29 -0400, Jeff Garzik wrote: > Michael Chan wrote: > > A non-IOMMU system using 64-bit dma_addr_t will always set > > CONFIG_HIGHMEM, right? > > No. > May be I misunderstood the code in illegal_highdma() in net/core/dev.c where it is checking to see if it needs to linearize the SKB when the device does not support 64-bit DMA. I'm using similar assumptions for the 40-bit address check in the patch. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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