From: rric@kernel.org (Robert Richter)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] AHCI: Add generic MSI-X interrupt support to SATA PCI driver
Date: Mon, 10 Nov 2014 21:55:18 +0100 [thread overview]
Message-ID: <20141110205518.GY20170@rric.localhost> (raw)
In-Reply-To: <5460D100.90403@linux.intel.com>
On 10.11.14 22:51:44, Jiang Liu wrote:
> On 2014/11/10 13:30, Robert Richter wrote:
> > From: Sunil Goutham <sgoutham@cavium.com>
> > + /* only enable the first entry (entry.entry = 0) */
> > + rc = pci_enable_msix_exact(pdev, &entry, 1);
> > + if (rc < 0)
> > + return rc;
> > +
> > + pdev->irq = entry.vector;
> You can't overwrite pci_dev->irq for MSI-X, it's no way to
> recover original irq for INTx after unbinding ahci driver. Instead,
> you may access msi_desc->irq when requesting irq.
Right, I have a version now that determines the irq vector from
pdev->msi_list.
-Robert
prev parent reply other threads:[~2014-11-10 20:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-10 5:30 [PATCH] AHCI: Add generic MSI-X interrupt support to SATA PCI driver Robert Richter
2014-11-10 14:51 ` Jiang Liu
2014-11-10 20:55 ` Robert Richter [this message]
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