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of_pci_irq: kill useless variable in of_irq_parse_pci()

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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>
This commit is contained in:
Sergei Shtylyov 2014-05-25 22:50:06 +04:00 committed by Grant Likely
parent ad69674e73
commit 08cf78ed41
1 changed files with 2 additions and 4 deletions
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6
drivers/of/of_pci_irq.c
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@ -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);