of_pci_irq: kill useless variable in of_irq_parse_pci()

The 'lspec' variable only caused pointless promotions from u8 to u32 on each
loop iteration, while it's enough to promote only once, after the loop.

Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Grant Likely <grant.likely@linaro.org>

diff --git a/drivers/of/of_pci_irq.c b/drivers/of/of_pci_irq.c
index 7e4e214..1710d9d 100644 (file)
--- a/drivers/of/of_pci_irq.c
+++ b/drivers/of/of_pci_irq.c
@@ -18,7 +18,6 @@ int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq
 {
        struct device_node *dn, *ppnode;
        struct pci_dev *ppdev;
-       u32 lspec;
        __be32 laddr[3];
        u8 pin;
        int rc;
@@ -45,7 +44,6 @@ int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq
                return -ENODEV;
 
        /* Now we walk up the PCI tree */
-       lspec = pin;
        for (;;) {
                /* Get the pci_dev of our parent */
                ppdev = pdev->bus->self;
@@ -79,13 +77,13 @@ int of_irq_parse_pci(const struct pci_dev *pdev, struct of_phandle_args *out_irq
                /* We can only get here if we hit a P2P bridge with no node,
                 * let's do standard swizzling and try again
                 */
-               lspec = pci_swizzle_interrupt_pin(pdev, lspec);
+               pin = pci_swizzle_interrupt_pin(pdev, pin);
                pdev = ppdev;
        }
 
        out_irq->np = ppnode;
        out_irq->args_count = 1;
-       out_irq->args[0] = lspec;
+       out_irq->args[0] = pin;
        laddr[0] = cpu_to_be32((pdev->bus->number << 16) | (pdev->devfn << 8));
        laddr[1] = laddr[2] = cpu_to_be32(0);
        return of_irq_parse_raw(laddr, out_irq);