Re: [PATCH] ata: ahci: power off unused ports

From: Jeff Garzik
Date: Mon Jun 02 2008 - 05:48:47 EST


Alan Cox wrote:
The key requirement is per-port control. Ideally via hdparm or another userspace tool, but kernel command line (module options) or sysfs would be just fine too. And agreed, the minimal you need is simply 1/0 for the port's policy.

We don't need it per port Jeff, you are being quite silly here. Right now
its permanently foo=0 for all ports and nobody has suffered anything too
horrible so being able to turn it off for all ports is clearly quite
sufficient for the neat future.

Er, huh? foo=0 means hotplug continues to work on the unused ports. Nobody has suffered because we default to enabling all the goodies.

Jeff


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