staging: comedi: addi_apci_3120: remove private data 'b_InterruptMode'

This member of the private data is not really needed. The interrupt mode
can be determined by checking the devpriv->mode value to see if the
interrupt is enabled. Remove the unnecessary member.

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Reviewed-by: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
index c7f6130..84600d4 100644 (file)
--- a/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
+++ b/drivers/staging/comedi/drivers/addi-data/hwdrv_apci3120.c
@@ -74,10 +74,6 @@ This program is distributed in the hope that it will be useful, but WITHOUT ANY
 #define APCI3120_START                 1
 #define APCI3120_STOP                  0
 
-#define APCI3120_EOC_MODE              1
-#define APCI3120_EOS_MODE              2
-#define APCI3120_DMA_MODE              3
-
 #define APCI3120_RD_FIFO               0x00
 
 /* software trigger dummy register */
@@ -97,8 +93,6 @@ static int apci3120_reset(struct comedi_device *dev)
 {
        struct apci3120_private *devpriv = dev->private;
 
-       devpriv->b_InterruptMode = APCI3120_EOC_MODE;
-
        /*  variables used in timer subdevice */
        devpriv->b_Timer2Mode = 0;
        devpriv->b_Timer2Interrupt = 0;
@@ -145,8 +139,6 @@ static int apci3120_cancel(struct comedi_device *dev,
        inw(dev->iobase + APCI3120_STATUS_REG);
        devpriv->ui_DmaActualBuffer = 0;
 
-       devpriv->b_InterruptMode = APCI3120_EOC_MODE;
-
        return 0;
 }
 
@@ -413,11 +405,8 @@ static int apci3120_ai_cmd(struct comedi_device *dev,
        apci3120_timer_write(dev, 0, divisor);
 
        if (devpriv->us_UseDma) {
-               devpriv->b_InterruptMode = APCI3120_DMA_MODE;
                apci3120_setup_dma(dev, s);
        } else {
-               devpriv->b_InterruptMode = APCI3120_EOS_MODE;
-
                devpriv->mode |= APCI3120_MODE_EOS_IRQ_ENA;
 
                if (cmd->stop_src == TRIG_COUNT) {
@@ -615,12 +604,12 @@ static irqreturn_t apci3120_interrupt(int irq, void *d)
                dev_err(dev->class_dev, "AMCC IRQ - TARGET DMA ABORT!\n");
 
        if ((status & APCI3120_STATUS_EOC_INT) == 0 &&
-           devpriv->b_InterruptMode == APCI3120_EOC_MODE) {
+           (devpriv->mode & APCI3120_MODE_EOC_IRQ_ENA)) {
                /* nothing to do... EOC mode is not currently used */
        }
 
        if ((status & APCI3120_STATUS_EOS_INT) &&
-           devpriv->b_InterruptMode == APCI3120_EOS_MODE) {
+           (devpriv->mode & APCI3120_MODE_EOS_IRQ_ENA)) {
                unsigned short val;
                int i;
 
@@ -663,8 +652,7 @@ static irqreturn_t apci3120_interrupt(int irq, void *d)
                apci3120_clr_timer2_interrupt(dev);
        }
 
-       if ((status & APCI3120_STATUS_AMCC_INT) &&
-           devpriv->b_InterruptMode == APCI3120_DMA_MODE) {
+       if (status & APCI3120_STATUS_AMCC_INT) {
                /* Clear Timer Write TC int */
                outl(APCI3120_CLEAR_WRITE_TC_INT,
                        devpriv->amcc + APCI3120_AMCC_OP_REG_INTCSR);

diff --git a/drivers/staging/comedi/drivers/addi_apci_3120.c b/drivers/staging/comedi/drivers/addi_apci_3120.c
index ec66233..a6ae42f 100644 (file)
--- a/drivers/staging/comedi/drivers/addi_apci_3120.c
+++ b/drivers/staging/comedi/drivers/addi_apci_3120.c
@@ -133,7 +133,6 @@ struct apci3120_private {
        unsigned short ctrl;
        unsigned char b_Timer2Mode;
        unsigned char b_Timer2Interrupt;
-       unsigned char b_InterruptMode;
        unsigned char b_ExttrigEnable;
        struct task_struct *tsk_Current;
 };