提交 068e8a30 编写于 作者: J Jean Delvare 提交者: David S. Miller

e1000e: Simplify MSI interrupt testing

The code is quite convoluted, simplify it. This also avoids calling
e1000_request_irq() without testing the value it returned, which was
bad.
Signed-off-by: NJean Delvare <jdelvare@suse.de>
Cc: Bruce Allan <bruce.w.allan@intel.com>
Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 bc0ed0be
......@@ -3412,22 +3412,16 @@ static int e1000_test_msi_interrupt(struct e1000_adapter *adapter)
if (adapter->flags & FLAG_MSI_TEST_FAILED) {
adapter->int_mode = E1000E_INT_MODE_LEGACY;
err = -EIO;
e_info("MSI interrupt test failed!\n");
}
e_info("MSI interrupt test failed, using legacy interrupt.\n");
} else
e_dbg("MSI interrupt test succeeded!\n");
free_irq(adapter->pdev->irq, netdev);
pci_disable_msi(adapter->pdev);
if (err == -EIO)
goto msi_test_failed;
/* okay so the test worked, restore settings */
e_dbg("MSI interrupt test succeeded!\n");
msi_test_failed:
e1000e_set_interrupt_capability(adapter);
e1000_request_irq(adapter);
return err;
return e1000_request_irq(adapter);
}
/**
......@@ -3459,21 +3453,6 @@ static int e1000_test_msi(struct e1000_adapter *adapter)
pci_write_config_word(adapter->pdev, PCI_COMMAND, pci_cmd);
}
/* success ! */
if (!err)
return 0;
/* EIO means MSI test failed */
if (err != -EIO)
return err;
/* back to INTx mode */
e_warn("MSI interrupt test failed, using legacy interrupt.\n");
e1000_free_irq(adapter);
err = e1000_request_irq(adapter);
return err;
}
......
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