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libata-sff: ata_sff_irq_clear() is BMDMA specific

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ata_sff_irq_clear() is BMDMA specific.  Rename it to
ata_bmdma_irq_clear(), move it to ata_bmdma_port_ops and make
->sff_irq_clear() optional.

Note: ata_bmdma_irq_clear() is actually only needed by ata_piix and
      possibly by sata_sil.  This should be moved to respective low
      level drivers later.

Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Tejun Heo
2010-05-19 22:10:20 +02:00
committed by Jeff Garzik
parent 2f20ccf819
commit 37f65b8bc2
7 changed files with 44 additions and 36 deletions
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2
drivers/ata/pata_scc.c
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@@ -875,7 +875,7 @@ static void scc_postreset(struct ata_link *link, unsigned int *classes)
* scc_irq_clear - Clear PCI IDE BMDMA interrupt.
* @ap: Port associated with this ATA transaction.
*
* Note: Original code is ata_sff_irq_clear().
* Note: Original code is ata_bmdma_irq_clear().
*/
static void scc_irq_clear (struct ata_port *ap)