> Commit 16ae9dd35d37 ("scsi: aacraid: Fix for excessive prints on EEH")
> introduced checks about the state of device before any PCI operations
> in the driver. Basically, this prevents it to perform PCI accesses
> when device is in the process of recover from a PCI error. In PowerPC,
> such mechanism is called EEH, and the aforementioned commit introduced
> checks that are based on EEH-specific primitives for that.
>
> The potential problems with this approach are three: first, these checks
> are "locked" to powerpc only - another archs could have error recovery
> methods too, like AER in Intel. Also, the powerpc primitives perform
> expensive FW accesses to validate the precise PCI state of a device.
> Finally, code becomes more complicated and needs ifdef validation
> based on arch config being set.
>
> So, this patch makes use of generic PCI state checks, which are
> lightweight and non-dependent of arch configs - also, it makes
> the code cleaner.
>
> Signed-off-by: Guilherme G. Piccoli <gpicc...@linux.vnet.ibm.com>
> ---
Reviewed-by: Dave Carroll <david.carr...@microsemi.com>
