sgiioc4: remove maskproc() method

Since the maskproc() method calls either mirror the interrupt en/disable via
the nIEN bit of the device control register done by the IDE core before issuing
a command or unmask the interrupt after a command executed in polled mode (when
interrupt is already not expected), it is pointless to implement this method
by manipulating the nIEN bit...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: jeremy@sgi.com
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>

diff --git a/drivers/ide/pci/sgiioc4.c b/drivers/ide/pci/sgiioc4.c
index dd63454..8581789 100644 (file)
--- a/drivers/ide/pci/sgiioc4.c
+++ b/drivers/ide/pci/sgiioc4.c
@@ -108,13 +108,6 @@ sgiioc4_init_hwif_ports(hw_regs_t * hw, unsigned long data_port,
                hw->io_ports.irq_addr = irq_port;
 }
 
-static void
-sgiioc4_maskproc(ide_drive_t * drive, int mask)
-{
-       writeb(ATA_DEVCTL_OBS | (mask ? 2 : 0),
-              (void __iomem *)drive->hwif->io_ports.ctl_addr);
-}
-
 static int
 sgiioc4_checkirq(ide_hwif_t * hwif)
 {
@@ -563,8 +556,6 @@ static const struct ide_port_ops sgiioc4_port_ops = {
        .set_dma_mode           = sgiioc4_set_dma_mode,
        /* reset DMA engine, clear IRQs */
        .resetproc              = sgiioc4_resetproc,
-       /* mask on/off NIEN register */
-       .maskproc               = sgiioc4_maskproc,
 };
 
 static const struct ide_dma_ops sgiioc4_dma_ops = {