ata_pack_xfermask

ata_pack_xfermask
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ata_pack_xfermask — Pack pio, mwdma and udma masks into xfer_mask

`unsigned long ata_pack_xfermask (`	unsigned long `pio_mask`,
	unsigned long `mwdma_mask`,
	unsigned long `udma_mask)`;

Pack pio_mask, mwdma_mask and udma_mask into a single unsigned int xfer_mask.

LOCKING: None.

Packed xfer_mask.

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