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| author | Mugunthan V N <mugunthanvnm@ti.com> | 2013-03-28 18:10:50 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-04-05 10:16:53 -0700 |
| commit | be409987531f89307e1cb281ff104209a085a5d7 (patch) | |
| tree | b08dade360a0955a26c2c216c756e32496570a71 | |
| parent | 85d17d2226b60776d55260f8bf5c5db972136e72 (diff) | |
| download | kernel_goldelico_gta04-be409987531f89307e1cb281ff104209a085a5d7.zip kernel_goldelico_gta04-be409987531f89307e1cb281ff104209a085a5d7.tar.gz kernel_goldelico_gta04-be409987531f89307e1cb281ff104209a085a5d7.tar.bz2 | |
atl1e: drop pci-msi support because of packet corruption
[ Upstream commit 188ab1b105c96656f6bcfb49d0d8bb1b1936b632 ]
Usage of pci-msi results in corrupted dma packet transfers to the host.
Reported-by: rebelyouth <rebelyouth.hacklab@gmail.com>
Cc: Huang, Xiong <xiong@qca.qualcomm.com>
Tested-by: Christian Sünkenberg <christian.suenkenberg@student.kit.edu>
Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/net/atl1e/atl1e.h | 1 | ||||
| -rw-r--r-- | drivers/net/atl1e/atl1e_main.c | 22 |
2 files changed, 2 insertions, 21 deletions
diff --git a/drivers/net/atl1e/atl1e.h b/drivers/net/atl1e/atl1e.h index 490d3b3..4093097 100644 --- a/drivers/net/atl1e/atl1e.h +++ b/drivers/net/atl1e/atl1e.h @@ -439,7 +439,6 @@ struct atl1e_adapter { struct atl1e_hw hw; struct atl1e_hw_stats hw_stats; - bool have_msi; u32 wol; u16 link_speed; u16 link_duplex; diff --git a/drivers/net/atl1e/atl1e_main.c b/drivers/net/atl1e/atl1e_main.c index 86a9122..b0132bb 100644 --- a/drivers/net/atl1e/atl1e_main.c +++ b/drivers/net/atl1e/atl1e_main.c @@ -1848,37 +1848,19 @@ static void atl1e_free_irq(struct atl1e_adapter *adapter) struct net_device *netdev = adapter->netdev; free_irq(adapter->pdev->irq, netdev); - - if (adapter->have_msi) - pci_disable_msi(adapter->pdev); } static int atl1e_request_irq(struct atl1e_adapter *adapter) { struct pci_dev *pdev = adapter->pdev; struct net_device *netdev = adapter->netdev; - int flags = 0; int err = 0; - adapter->have_msi = true; - err = pci_enable_msi(adapter->pdev); - if (err) { - netdev_dbg(adapter->netdev, - "Unable to allocate MSI interrupt Error: %d\n", err); - adapter->have_msi = false; - } else - netdev->irq = pdev->irq; - - - if (!adapter->have_msi) - flags |= IRQF_SHARED; - err = request_irq(adapter->pdev->irq, atl1e_intr, flags, - netdev->name, netdev); + err = request_irq(pdev->irq, atl1e_intr, IRQF_SHARED, + netdev->name, netdev); if (err) { netdev_dbg(adapter->netdev, "Unable to allocate interrupt Error: %d\n", err); - if (adapter->have_msi) - pci_disable_msi(adapter->pdev); return err; } netdev_dbg(adapter->netdev, "atl1e_request_irq OK\n"); |