powerpc/mpc5121_ads_cpld: Remove use of NO_IRQ_IGNORE

As NO_IRQ_IGNORE is only used between the static function cpld_pic_get_irq
and its caller cpld_pic_cascade, and cpld_pic_cascade only uses it to
suppress calling handle_generic_irq, we can change these uses to NO_IRQ
and remove the extra tests and pathlength in cpld_pic_cascade.

Signed-off-by: Milton Miller <miltonm@bga.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
index a8bc0d4..9f09319 100644 (file)
--- a/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
+++ b/arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
@@ -97,7 +97,7 @@ cpld_pic_get_irq(int offset, u8 ignore, u8 __iomem *statusp,
        status |= (ignore | mask);
 
        if (status == 0xff)
-               return NO_IRQ_IGNORE;
+               return NO_IRQ;
 
        cpld_irq = ffz(status) + offset;
 
@@ -109,14 +109,14 @@ cpld_pic_cascade(unsigned int irq, struct irq_desc *desc)
 {
        irq = cpld_pic_get_irq(0, PCI_IGNORE, &cpld_regs->pci_status,
                &cpld_regs->pci_mask);
-       if (irq != NO_IRQ && irq != NO_IRQ_IGNORE) {
+       if (irq != NO_IRQ) {
                generic_handle_irq(irq);
                return;
        }
 
        irq = cpld_pic_get_irq(8, MISC_IGNORE, &cpld_regs->misc_status,
                &cpld_regs->misc_mask);
-       if (irq != NO_IRQ && irq != NO_IRQ_IGNORE) {
+       if (irq != NO_IRQ) {
                generic_handle_irq(irq);
                return;
        }