spans_boundary(9) Check a packet can be ISA DMA'd

SYNOPSIS

int spans_boundary(struct sk_buff * skb);

ARGUMENTS

skb

The 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 <[email protected]>

Author.

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