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Subject[RFC PATCH] move tg3 to pci_request_irq
Hi,

This proof-of-concept patch converts the tg3 driver to use the
pci_request_irq() function.

Please note that I'm not submitting the driver changes, they're there
only for illustration purposes. I'll CC the appropriate maintainers
when/if an API is agreed upon.

Regards,
Frederik

diff --git a/drivers/net/tg3.c b/drivers/net/tg3.c
index c25ba27..23660c6 100644
Index: 2.6.18-mm3/drivers/net/tg3.c
===================================================================
--- 2.6.18-mm3.orig/drivers/net/tg3.c
+++ 2.6.18-mm3/drivers/net/tg3.c
@@ -6853,7 +6853,7 @@ static int tg3_request_irq(struct tg3 *t
fn = tg3_interrupt_tagged;
flags = IRQF_SHARED | IRQF_SAMPLE_RANDOM;
}
- return (request_irq(tp->pdev->irq, fn, flags, dev->name, dev));
+ return pci_request_irq(tp->pdev, fn, flags, dev->name);
}

static int tg3_test_interrupt(struct tg3 *tp)
@@ -6866,10 +6866,10 @@ static int tg3_test_interrupt(struct tg3

tg3_disable_ints(tp);

- free_irq(tp->pdev->irq, dev);
+ pci_free_irq(tp->pdev);

- err = request_irq(tp->pdev->irq, tg3_test_isr,
- IRQF_SHARED | IRQF_SAMPLE_RANDOM, dev->name, dev);
+ err = pci_request_irq(tp->pdev, tg3_test_isr,
+ IRQF_SHARED | IRQF_SAMPLE_RANDOM, dev->name);
if (err)
return err;

@@ -6897,7 +6897,7 @@ static int tg3_test_interrupt(struct tg3

tg3_disable_ints(tp);

- free_irq(tp->pdev->irq, dev);
+ pci_free_irq(tp->pdev);

err = tg3_request_irq(tp);

@@ -6915,7 +6915,6 @@ static int tg3_test_interrupt(struct tg3
*/
static int tg3_test_msi(struct tg3 *tp)
{
- struct net_device *dev = tp->dev;
int err;
u16 pci_cmd;

@@ -6946,7 +6945,7 @@ static int tg3_test_msi(struct tg3 *tp)
"the PCI maintainer and include system chipset information.\n",
tp->dev->name);

- free_irq(tp->pdev->irq, dev);
+ pci_free_irq(tp->pdev);
pci_disable_msi(tp->pdev);

tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
@@ -6966,7 +6965,7 @@ static int tg3_test_msi(struct tg3 *tp)
tg3_full_unlock(tp);

if (err)
- free_irq(tp->pdev->irq, dev);
+ pci_free_irq(tp->pdev);

return err;
}
@@ -7051,7 +7050,7 @@ static int tg3_open(struct net_device *d
tg3_full_unlock(tp);

if (err) {
- free_irq(tp->pdev->irq, dev);
+ pci_free_irq(tp->pdev);
if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
pci_disable_msi(tp->pdev);
tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
@@ -7363,7 +7362,7 @@ static int tg3_close(struct net_device *

tg3_full_unlock(tp);

- free_irq(tp->pdev->irq, dev);
+ pci_free_irq(tp->pdev);
if (tp->tg3_flags2 & TG3_FLG2_USING_MSI) {
pci_disable_msi(tp->pdev);
tp->tg3_flags2 &= ~TG3_FLG2_USING_MSI;
-
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