Re: USB: fix bug with EHCI cpufreq patch on nVidia controllers

Greg KH <[email protected]>
Newsgroups gmane.linux.usb.devel
Message-ID <[email protected]>
On Wed, Aug 01, 2007 at 10:55:41AM -0500, Stuart Hayes wrote:
> This patch fixes a bug with the cpu frequency change notifier and nVidia
> EHCI controllers.  The nVidia controllers write the transfer overlay
> back to the qtd when they see the "inactivate" bit set in the qh, which
> clears the "active" bit in qtd->hw_token.  When the qh was reactivated,
> the "active" bit in the overlay's hw_token was turned back on, but not
> the one in the qtd.  This caused qh_completions to think that qtd was
> finished even though it wasn't.
> 
> Signed-off-by: Stuart Hayes <[email protected]>
> Signed-off-by: Greg Kroah-Hartman <[email protected]>

This is now dropped from my tree due to Linus reverting the original
issue.  If it is still needed, please rebase and resend.

thanks,

greg k-h

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