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SPANS_BOUNDARY(9) | Internal Functions | SPANS_BOUNDARY(9) |
NAME¶
spans_boundary - Check a packet can be ISA DMA'dSYNOPSIS¶
int
spans_boundary(struct sk_buff * skb);
ARGUMENTS¶
skbThe buffer to check
DESCRIPTION¶
Returns true if the buffer cross a DMA boundary on a PC. The poor thing can only DMA within a 64K block not across the edges of it.AUTHOR¶
Alan Cox <alan@lxorguk.ukuu.org.uk>Author.
COPYRIGHT¶
January 2017 | Kernel Hackers Manual 4.8. |