staging: comedi: amplc_pci230: make `intr_running` a bitfield

Change the `intr_running` member of `struct pci230_private` into a
single-bit bitfield of type `bool` to save a bit of space.

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

diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c
index 8959820..29e6016 100644 (file)
--- a/drivers/staging/comedi/drivers/amplc_pci230.c
+++ b/drivers/staging/comedi/drivers/amplc_pci230.c
@@ -507,8 +507,8 @@ struct pci230_private {
        unsigned short adcg;            /* ADCG register value */
        unsigned char int_en;           /* Interrupt enable bits */
        unsigned char ier;              /* Copy of interrupt enable register */
-       unsigned char intr_running;     /* Flag set in interrupt routine */
        unsigned char res_owner[NUM_RESOURCES]; /* Shared resource owners */
+       bool intr_running:1;            /* Flag set in interrupt routine */
        bool ai_bipolar:1;              /* Flag AI range is bipolar */
        bool ao_bipolar:1;              /* Flag AO range is bipolar */
 };
@@ -2451,7 +2451,7 @@ static irqreturn_t pci230_interrupt(int irq, void *d)
         */
        devpriv->ier = devpriv->int_en & ~status_int;
        outb(devpriv->ier, dev->iobase + PCI230_INT_SCE);
-       devpriv->intr_running = 1;
+       devpriv->intr_running = true;
        devpriv->intr_cpuid = THISCPU;
        spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
 
@@ -2487,7 +2487,7 @@ static irqreturn_t pci230_interrupt(int irq, void *d)
                devpriv->ier = devpriv->int_en;
                outb(devpriv->ier, dev->iobase + PCI230_INT_SCE);
        }
-       devpriv->intr_running = 0;
+       devpriv->intr_running = false;
        spin_unlock_irqrestore(&devpriv->isr_spinlock, irqflags);
 
        return IRQ_HANDLED;