1SPANS_BOUNDARY(9)             Internal Functions             SPANS_BOUNDARY(9)
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NAME

6       spans_boundary - Check a packet can be ISA DMA'd
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SYNOPSIS

9       int spans_boundary(struct sk_buff * skb);
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ARGUMENTS

12       skb
13           The buffer to check
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DESCRIPTION

16       Returns true if the buffer cross a DMA boundary on a PC. The poor thing
17       can only DMA within a 64K block not across the edges of it.
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AUTHOR

20       Alan Cox <alan@lxorguk.ukuu.org.uk>
21           Author.
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24Kernel Hackers Manual 3.10         June 2019                 SPANS_BOUNDARY(9)
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