• Robert Richter's avatar
    ahci: Store irq number in struct ahci_host_priv · 21bfd1aa
    Robert Richter authored
    Currently, ahci supports only msi and intx. To also support msix the
    handling of the irq number need to be changed. The irq number for msix
    devices is taken from msi_list instead of pci_dev. Thus, the irq
    number of a device needs to be stored in struct ahci_host_priv now.
    This allows the host controller to be activated in a generic way.
    
    This change is only intended for ahci drivers. For that reason the irq
    number is stored in struct ahci_host_priv used only by ahci drivers.
    Thus, the ABI changes only for ahci_host_activate(), but existing ata
    drivers (about 50) are unaffected and keep unchanged. All users of
    ahci_host_activate() have been updated.
    
    While touching drivers/ata/libahci.c, doing a small code cleanup in
    ahci_port_start().
    Signed-off-by: default avatarRobert Richter <rrichter@cavium.com>
    Signed-off-by: default avatarTejun Heo <tj@kernel.org>
    21bfd1aa
ahci.c 48.2 KB