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[PATCH] libata: set IRQF_SHARED for legacy PCI IDE IRQs

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There are machines out there which share legacy PCI IDE IRQs w/ other
devices.  libata SFF interrupt/HSM code is ready for shared IRQ and
has been setting IRQF_SHARED for devices in native PCI mode.  Device
in legacy mode is still a PCI device and thus supposedly uses
active-low level triggered IRQ.

Machines with such setup should be quite rare and w/o this flag libata
is likely to fail loading and render the system unuseable.  Also, IDE
driver has been setting IRQF_SHARED for devices in legacy mode for a
looooong time.

Signed-off-by: Tejun Heo <htejun@gmail.com>
This commit is contained in:
Tejun Heo 2006-11-17 16:22:27 +09:00
parent 582982e699
commit 8070217d30
1 changed files with 1 additions and 0 deletions
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drivers/ata/libata-sff.c
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@ -906,6 +906,7 @@ static struct ata_probe_ent *ata_pci_init_legacy_port(struct pci_dev *pdev,
return NULL; return NULL;
probe_ent->n_ports = 2; probe_ent->n_ports = 2;
probe_ent->irq_flags = IRQF_SHARED;
if (port_mask & ATA_PORT_PRIMARY) { if (port_mask & ATA_PORT_PRIMARY) {
probe_ent->irq = ATA_PRIMARY_IRQ; probe_ent->irq = ATA_PRIMARY_IRQ;